Construction Management Plan in Wandsworth

A Construction Management Plan is a written document, usually with supporting drawings, that explains how a building project will be carried out on the ground: how construction vehicles will reach and leave the site, when and where deliveries will happen, what hours work will take place, how noise and dust and vibration will be controlled, how the public footway and carriageway will be protected, and where everything — materials, plant, skips, welfare cabins, hoarding — will physically go. It is sometimes called a Construction Method Statement, a Construction Logistics Plan, or a Construction Environmental Management Plan, and while those terms have slightly different technical emphases, in the residential context Wandsworth uses them for broadly the same purpose: to control the impact of the building phase.

The single most important thing to understand about a CMP is that it is almost never part of the planning application itself. You do not usually submit a CMP to win permission; you submit it after permission has been granted, to satisfy a condition attached to that permission. The principle of your development — whether the extension, the basement or the new house is acceptable — was decided when the council determined the application. The CMP deals only with the temporary business of construction. That is why it is judged against the council's construction guidance and highway standards rather than against design policy, and why it lives in a separate process from the planning application.

Because the CMP responds to a condition, the exact scope of what it must contain is defined by the wording of that condition on your decision notice. Two Wandsworth permissions can carry CMP conditions of very different length: a modest condition on a single-storey extension near a school might ask only for delivery timing and pedestrian safety, while a condition on a basement or a small block of flats can run to a long list of required contents. The first task on any instruction is therefore to read the condition itself, word for word, because it tells you precisely what the council will be looking for when it decides whether to discharge it.

A good CMP is short, specific and honest. It is not a generic template with the site address dropped in — case officers see dozens of those and reject them routinely for failing to engage with the actual street. It is a document that shows the officer you have looked at the real constraints of your site: the width of the road, the parking controls, the school run, the bus route, the neighbours who share a party wall, and the conservation area you sit in. When it does that, it discharges quickly. When it does not, it bounces back with a request for more information, and the project waits.

Planning conditions exist so that a council can grant permission for a development while keeping control of matters that need to be resolved before or during the build. A condition must meet six well-established tests — it must be necessary, relevant to planning, relevant to the development permitted, enforceable, precise and reasonable. A CMP condition passes those tests comfortably because the way a site is built genuinely affects highway safety, neighbour amenity and air quality, all of which are legitimate planning concerns, and because the plan can be enforced through the discharge process and through the council's environmental health and highways powers.

Wandsworth attaches CMP conditions liberally because the borough's physical fabric almost guarantees construction impact. On a typical Wandsworth residential street there is no off-street space for a lorry to stand, on-street parking is fully allocated under a controlled parking zone, and the nearest neighbours are a party wall away. A basement dig will remove and cart away many lorry-loads of spoil; a demolition and rebuild will run for the best part of a year; a house-to-flats conversion means months of trades coming and going. Without a plan, that activity spills into the street uncontrolled, and the council receives complaints it then has to deal with reactively. The condition front-loads the control, so the rules are agreed before work starts rather than argued about afterwards.

Most CMP conditions in Wandsworth are drafted as pre-commencement conditions — the plan must be submitted to and approved in writing by the local planning authority before any development, or before any demolition or groundworks, takes place. This wording matters enormously. A pre-commencement condition is not satisfied merely by submitting the plan; it requires the council's written approval before you can lawfully start. Beginning work before a genuine pre-commencement condition is discharged can render the whole permission unimplemented, meaning the development is unauthorised and, in the worst case, the permission is treated as never having been lawfully begun. That is a risk no owner should take with a project of any size.

There is a narrower category of condition that simply requires a plan to be 'submitted' before commencement, without requiring approval first — in that case a material start can be made once the plan is with the council. But most Wandsworth CMP conditions are of the stricter 'submitted to and approved in writing' type, and you should assume yours is unless it plainly says otherwise. We read the wording precisely, and where there is ambiguity we resolve it with the case officer rather than guessing, because getting this wrong is one of the few ways to jeopardise an otherwise sound permission.

The London Borough of Wandsworth was created in 1965 from the old metropolitan borough of Battersea and most of the former borough of Wandsworth, and its modern character was largely set in the great suburban expansion at the end of the nineteenth century, when small riverside hamlets grew into the five town centres the borough still turns on today: Battersea, Clapham Junction, Putney, Tooting and Wandsworth Town. That history is the reason construction is so difficult here. The borough's residential fabric is overwhelmingly late-Victorian and Edwardian terraced and semi-detached housing, laid out in tight grids of streets that were never designed for skip lorries, concrete pumps or spoil removal — and it is exactly this housing that owners now want to extend, dig under and convert.

The geography compounds it. Wandsworth sits on the south bank of the Thames, with Battersea Bridge, Albert Bridge, Wandsworth Bridge and Putney Bridge tying it to the north, and the river edge at Nine Elms and Battersea has seen some of the largest redevelopment in London, around Battersea Power Station — Sir Giles Gilbert Scott's 1933 landmark — and the wider Vauxhall–Nine Elms–Battersea Opportunity Area. Inland, the borough runs up to the open commons at Wandsworth, Clapham, Tooting Bec and Putney Heath. Clapham Junction remains the busiest railway interchange in the country, and Charles Holden's Northern line stations at Tooting Bec, Tooting Broadway, Balham and Clapham South put dense residential streets right on top of the transport network. Construction here happens in the gaps between commons, railways, main roads and one another's back gardens.

Wandsworth has forty-six conservation areas, ranging from a single short street such as Deodar Road in Putney to large areas like West Putney and the twentieth-century Alton Estate at Roehampton, together with a substantial number of listed buildings including the parish churches, the surviving village cores at Battersea Square, and Tooting Bec Lido — the largest freshwater swimming pool by surface area in the United Kingdom. In a conservation area or near a listed building, the council pays even closer attention to the construction phase, because hoardings, plant, deliveries and dust affect the setting and the historic fabric of protected streets. A CMP for a project in one of these areas has to show real sensitivity to that context.

Put all of that together and you have a borough where almost every residential build is squeezed onto a constrained street, next to neighbours, often within a conservation area, and threaded past saturated parking, bus routes and busy junctions. That is precisely why Wandsworth's planning permissions so reliably carry CMP conditions, and why the council's expectations for those plans are higher than in a low-density borough with driveways and room to manoeuvre. The plan has to prove, street by street, that the build can be run without gridlocking the road or blighting the neighbours.

There is no single threshold that automatically triggers a CMP; it is imposed case by case, through the conditions on your specific permission, and it reflects the case officer's judgement about the likely construction impact of your scheme on its particular location. That said, there are clear patterns in Wandsworth. The larger and more disruptive the works, and the more constrained and sensitive the street, the more likely a CMP condition becomes — and for some project types it is effectively standard.

Basement extensions are the clearest example. Wandsworth's basement guidance for householders makes plain that a construction method statement is strongly encouraged for basement projects and is a requirement for basements to listed buildings, and that it must be independently verified at the applicant's cost. A basement means excavation, underpinning, temporary propping, and the removal of a great deal of spoil through the house or the front garden and out onto the street — the highest-impact residential activity the borough sees short of full redevelopment. Any basement in Wandsworth should be planned on the assumption that a detailed construction method statement or CMP will be required and closely scrutinised.

Beyond basements, CMP conditions are common on demolition and rebuild schemes, on the conversion of a house into flats, on new-build houses and small blocks, on larger rear and side extensions on constrained streets, and on any development close to a school, a busy junction, a bus route or a railway. Even relatively modest works can attract a CMP condition where the street is narrow, where parking is tightly controlled, or where the site sits in a conservation area. The safest assumption for any non-trivial Wandsworth residential project is that a CMP may be required, and to be ready to produce one quickly so it does not delay the start on site.

It is worth distinguishing the CMP from the separate validation requirement for a Construction Environmental Management Plan, or CEMP, which Wandsworth's local validation checklist can require to be submitted with certain applications — particularly where there are ecological considerations, such as protected species, priority habitats or invasive non-native plants like Japanese knotweed, or significant air-quality and dust risks. A CEMP submitted at application stage and a CMP required by condition after permission overlap heavily in content, and on many schemes the same underlying information does both jobs. We check which your project needs and, where sensible, prepare a single coherent document that satisfies both.

The heart of most Wandsworth CMPs is construction traffic: how vehicles reach the site, when they arrive, where they wait, how they turn, and how they leave without endangering pedestrians and cyclists or blocking the road. On a typical borough street there is no room for a lorry to stand off-carriageway, so the plan has to say honestly where deliveries will happen, how long a vehicle can be on the road, and how the flow of traffic and the safety of people walking past will be maintained while it is there. A credible CMP names the access route from the nearest main road, avoids rat-runs and streets around schools at drop-off and pick-up times, and shows that turning and reversing can actually be done on the real geometry of the road.

Delivery timing is central. It is normal, and often required, for delivery vehicle movements to be booked and scheduled so that they avoid the network peak hours — commonly the 08:00–10:00 morning peak and the 16:00–18:00 evening peak — and, near schools, to avoid the start and end of the school day entirely. On the most constrained sites the council may expect deliveries to be confined to a tighter window, and a booking system that prevents multiple large vehicles arriving at once. The plan should also address holding arrangements so that a lorry arriving early does not sit idling on a residential street, and should commit to no queuing of construction vehicles on the public highway.

For larger schemes, the London Plan's transport policy and Transport for London guidance expect construction logistics to meet recognised safety and environmental standards. That means committing to the Construction Logistics and Community Safety scheme — CLOCS — or an equivalent, and to the Fleet Operator Recognition Scheme — FORS — or equivalent, so that vehicles are fitted with the safety equipment and driven to the standards that reduce the danger to cyclists and pedestrians that heavy goods vehicles pose in dense urban streets. Even on smaller residential jobs, referencing these standards where appropriate reassures the highways officer that vehicle safety has been thought through.

Parking and loading are the other half of the picture. Wandsworth's controlled parking zones cover most of the borough, so the plan needs to be realistic about where contractors will park — the honest answer is usually that they will not park on the street, and the CMP should say how that will be enforced. Where a skip, a hoarding or a standing vehicle will occupy the carriageway or footway, the plan should flag that the relevant licences and any parking bay suspensions will be obtained from the council in good time, because these are separate consents that take days or weeks to arrange and are a common cause of on-site delay if left to the last minute.

Nothing generates more complaints during a build than noise at the wrong time of day, and so the permitted hours for noisy work are a fixed feature of every Wandsworth CMP. The borough, in common with London practice generally and under the powers of the Control of Pollution Act 1974, restricts the hours during which noisy construction and demolition work may take place. The standard pattern the council works to is noisy work between 8am and 6pm on Mondays to Fridays and between 8am and 1pm on Saturdays, with no noisy work on Sundays or on bank and public holidays. A CMP should state the hours it will observe, and they should sit within this envelope unless there is a specific, agreed reason to depart from it.

It is important to distinguish the hours for genuinely noisy work from quieter activity. Fit-out and other low-noise tasks inside a weathertight building may be able to continue outside the noisiest window, but anything involving demolition, breaking out, cutting, grinding, heavy plant or deliveries should be kept firmly within the permitted hours. The plan should be specific about which activities happen when, rather than making a vague promise to 'work within normal hours', because the case officer and the environmental health team want to see that the noisiest phases — demolition, excavation, groundworks — have been consciously scheduled to fall inside the allowed times.

Where a contractor genuinely needs to work outside the standard hours — for instance a continuous concrete pour that cannot be interrupted, or a crane lift that must be done when the road is quiet — that is dealt with separately from the CMP, by seeking prior consent for the works under section 61 of the Control of Pollution Act 1974, or by responding to a notice served under section 60. These are formal environmental-health processes, agreed in advance, and the CMP should acknowledge them rather than assume that out-of-hours working can simply happen. Committing in the plan to obtain any necessary consents before out-of-hours work is exactly the kind of reassurance that helps a CMP discharge smoothly.

The hours discipline matters beyond the paperwork because Wandsworth's environmental health service can and does enforce it. Construction noise that breaches agreed hours or amounts to a statutory nuisance under the Environmental Protection Act 1990 can result in an abatement notice, and persistent breaches can bring the works to a halt. A CMP that sets out realistic hours and sticks to them protects the project from that risk; a plan that promises hours the contractor then ignores invites complaints, enforcement and delay. We write the hours to match how the job will actually be run.

The whole of Greater London is a designated Air Quality Management Area for nitrogen dioxide and particulates, and Wandsworth is no exception, so controlling dust and emissions from a building site is a core part of the CMP. The London-wide framework here is the Mayor's guidance on the control of dust and emissions during construction and demolition, which sets a requirement to assess the dust risk of a site and to apply mitigation proportionate to that risk, following the methodology published by the Institute of Air Quality Management (IAQM). Wandsworth's own guidance and Local Plan expect demolition and construction to follow that IAQM approach, and a CMP should show that the site has been assessed and that appropriate controls will be used.

The practical dust controls are well established and a good CMP commits to them plainly: damping down with water during any activity that can generate dust, including demolition, cutting and excavation; using water suppression or local exhaust ventilation on mechanical cutting and grinding rather than cutting dry; erecting solid screens, barriers or sheeting around dusty activities and around the site boundary; covering skips and loads; keeping stockpiles of dusty materials covered or damped and away from the boundary; and cleaning the site and the surrounding footway regularly. Burning waste on site is not acceptable. These are not onerous measures, but they must be stated and then actually done.

Emissions from the machinery itself are controlled through the Mayor's Non-Road Mobile Machinery Low Emission Zone, which sets minimum engine emission standards for construction plant between 37 kW and 560 kW. Since January 2025 the standard across all of London is Stage IV, tightening to Stage V from January 2030 and to zero-emission machinery from 2040; sites in and around the Central Activities Zone and Opportunity Areas — which in Wandsworth includes the Nine Elms and Battersea area — have historically faced the tighter standard first. Any site using qualifying plant must register it on the NRMM online register to demonstrate compliance. A CMP for a project using excavators, generators or other diesel plant should commit to meeting the applicable NRMM standard and to registering the machinery.

For most modest residential extensions the dust section can be short and proportionate — the risk is genuinely low and the controls are correspondingly light. But for demolitions, basements and larger schemes, dust and air quality is one of the areas Wandsworth scrutinises most closely, and a plan that treats it seriously, with a proper risk-based approach and clear NRMM commitments, is far more likely to be discharged without a request for further information.

Alongside the working-hours restriction, a CMP is expected to set out how the level of noise and vibration will be controlled while work is happening within those hours. The governing principle, drawn from the Control of Pollution Act 1974 and reflected in best-practice guidance such as BS 5228 for noise and vibration on construction and open sites, is that the contractor should use the best practicable means to minimise disturbance — choosing the quietest methods and equipment reasonably available, and organising the work to keep the noisiest operations short and well-managed.

In practice that means the CMP should commit to specific measures: using modern, well-maintained and properly silenced plant; positioning noisy equipment such as generators and compressors as far as practicable from neighbouring windows and gardens, and screening or acoustically enclosing them where needed; avoiding unnecessary revving, dropping of materials and radios; and switching off plant when not in use rather than leaving it idling. On sites where continuous heavy activity is unavoidable, some plans build in quiet periods during the day, but on most residential jobs the key is simply demonstrating a considerate, best-practicable-means approach.

Vibration is a particular concern in Wandsworth because so much work happens against party walls in terraced housing, and because basement digs involve excavation and propping right beside neighbouring foundations. The CMP should address how vibration from breaking out, piling or excavation will be limited and monitored, and it dovetails with the separate obligations owners have to neighbours under the Party Wall etc. Act 1996. Where a scheme involves excavation near a neighbour's building — as almost every basement does — party wall notices and awards run in parallel with the planning conditions, and a well-run project coordinates the two so that the construction methodology satisfies both the council and the adjoining owners.

The council's environmental health team is the backstop here. If construction noise or vibration becomes a statutory nuisance, or breaches the agreed hours, the team can investigate and, where justified, serve an abatement notice under the Environmental Protection Act 1990. A CMP that sets out genuine noise controls and realistic hours is the project's best protection against that, because it demonstrates from the outset that disturbance has been designed out as far as practicable — which is exactly what the best-practicable-means test asks.

Mud and debris carried out of a site on lorry wheels and deposited on the public road is one of the most visible construction nuisances, and it is a specific item most Wandsworth CMPs must address. Depositing mud on the highway is an offence, and beyond the legal point it is a genuine hazard — wet mud on a road surface is dangerous for cyclists and motorcyclists in particular, and Wandsworth's residential streets carry a great deal of cycling. The CMP therefore needs to explain how vehicles will leave the site clean.

On larger and muddier sites — demolitions, basements, new builds with significant groundworks — the standard answer is a wheel-washing facility at the site exit: a dedicated area, often with high-pressure jet-wash lances, where vehicle wheels and undersides are cleaned before the lorry rejoins the road, together with arrangements for capturing and disposing of the wash water rather than letting it run into the drains untreated. The plan should say where the facility is, how it works, and how the water is dealt with. On sites where a full wheel-wash is not practicable, the plan should set out the alternative — hand-cleaning of wheels, road sweeping, or a combination — that will keep the road clean.

Wheel-washing rarely stands alone. It is normally paired with a commitment to sweep and clean the site access, the footway and the adjoining carriageway regularly, and immediately if any material is tracked out; to cover loaded vehicles so that spoil and dust do not blow or fall onto the road in transit; and to keep the site entrance and any hardstanding in a condition that minimises how much mud reaches the wheels in the first place. On a constrained Wandsworth street, where a single muddy stretch of road quickly draws complaints, these measures matter as much as the wheel-wash itself.

As with the other sections, proportionality applies. A small extension that generates little groundwork may need no more than a commitment to keep the footway clean and sweep up promptly, whereas a basement removing hundreds of cubic metres of spoil will be expected to have a proper wheel-washing regime. We match the measures to the actual scale of the earth-moving on your site, so the plan is neither under-specified — which invites refusal — nor loaded with facilities a small job does not need.

A CMP has to account for the physical footprint of the building operation: where materials will be stored, where plant and skips will stand, where the welfare cabins and site office will go, and how the site will be enclosed. On a spacious site this is straightforward, but on the constrained plots typical of Wandsworth it is often the hardest part, because there is simply nowhere obvious to put anything. The plan has to demonstrate that materials and plant can be stored safely within the site rather than spilling onto the footway or road, or, where the highway must be used, that the appropriate licence will be obtained and the pedestrian route kept safe.

Hoardings and site enclosure are both a safety measure and, in Wandsworth's conservation areas, a visual one. A secure hoarding keeps the public out and the site in, but where it fronts a street — particularly a historic or conservation-area street — its appearance and its effect on the footway width matter, and any hoarding that stands on the public highway needs a licence from the council. The plan should describe the enclosure, confirm that pedestrian access past the site will be maintained at a safe width, and, in sensitive locations, show that the hoarding will not harm the character of the street.

Welfare and safety provision — toilets, washing, a rest area and first aid for the workforce, together with the fire and general safety arrangements required under construction health-and-safety law — sit in the CMP too, because they affect how the site operates and, on tight plots, where the cabins physically go. On sites where there is genuinely no room for on-site welfare, the plan has to be realistic about how it will be provided without occupying the public realm. This is exactly the sort of practical detail Wandsworth officers look for as evidence that the logistics have been thought through rather than assumed.

Finally, the plan should address how waste will be managed and removed — segregated where practicable, stored so it does not blow around or attract vermin, and carried away by licensed carriers — and, where relevant, how any contamination or unexpected ground conditions encountered during excavation will be dealt with. Bringing all of this together on a single site logistics plan drawing, showing the access, the storage, the welfare, the hoarding line and the wheel-wash on the actual site plan, is one of the most persuasive things a CMP can contain, because it lets the officer see at a glance that everything fits.

A Construction Management Plan does not float free of the law; it is the site-specific expression of several overlapping legal and policy regimes, and understanding them is what allows a CMP to be written so that it genuinely satisfies the council. The foundational statute is the Control of Pollution Act 1974, whose sections 60 and 61 give the local authority the power to control construction noise — by serving a notice specifying how work must be carried out, or by granting prior consent for an agreed method of working. The permitted-hours regime that every Wandsworth CMP observes flows from these powers.

The Environmental Protection Act 1990 sits behind that, giving the council the ability to treat construction noise, dust or other disturbance as a statutory nuisance and to serve an abatement notice where it amounts to one. Together these two Acts are why the amenity commitments in a CMP are enforceable rather than aspirational. At the strategic level, the London Plan 2021 supplies the transport and environmental policies the borough applies — in particular Policy T7 on deliveries, servicing and construction, which expects construction logistics plans developed in line with Transport for London guidance and the use of safer, cleaner vehicles through schemes such as CLOCS and FORS — and the Mayor's supplementary guidance on the control of dust and emissions and on Non-Road Mobile Machinery.

At borough level, the document that most directly shapes a Wandsworth CMP is the council's Construction Code of Practice, which sets out the borough's expectations for how sites are run — hours, noise, dust, deliveries, highway cleanliness and neighbour liaison — and which a CMP is effectively written to comply with. Above that sits the Wandsworth Local Plan, adopted on 19 July 2023 to guide development to 2038, whose policies seek to reduce and mitigate environmental impacts from pollution, including air, noise, light and odour, and to protect the amenity of neighbouring occupiers — the very outcomes the CMP is there to deliver during the construction phase.

Two further regimes commonly run alongside the CMP without being part of it. The Party Wall etc. Act 1996 governs an owner's obligations to neighbours when building on or near a boundary or excavating close to their foundations, which on Wandsworth's terraced streets and basement projects is almost always engaged; and construction health-and-safety law, including the Construction (Design and Management) Regulations, governs the safety of the works themselves. A well-run project keeps all of these in step, so that the way the site is built satisfies the council, the neighbours and the health-and-safety regime at the same time.

Our process starts with the condition itself. We read the exact wording on your Wandsworth decision notice, identify whether it is a true pre-commencement condition requiring approval before you start, and list precisely what it asks the CMP to contain. That list becomes the skeleton of the document, so that when the case officer checks the plan against the condition, every required item is plainly there. This sounds obvious, but the most common reason a CMP is not discharged first time is that it quietly omits something the condition asked for, and the officer has to come back and request it.

We then look at the real site and its street. Because we prepare the drawings for the schemes we design, we already understand the geometry of the plot, the access, the party walls and the neighbouring context — and where we are asked to write a CMP for a scheme designed by others, we survey the same things. We check the road width, the parking controls, the proximity of schools, junctions, bus routes and the railway, whether the site is in one of the borough's forty-six conservation areas, and how spoil, materials and plant can actually be moved on and off. The CMP is built from these facts, not from a template, which is what makes it credible to a Wandsworth officer.

The document we produce is deliberately concise and proportionate. For a modest extension it may be a few focused pages plus a site logistics drawing; for a basement or a small block it will be a fuller document with a dust risk assessment, an NRMM commitment, a detailed traffic and delivery strategy, and a wheel-washing regime. In every case it covers the core matters — deliveries and routing, hours, dust and air quality, noise and vibration, wheel-washing, site set-up, welfare and neighbour liaison — at the depth the scheme actually warrants, so it neither under-answers the condition nor buries a small job in irrelevant detail.

Finally, we submit it properly. A CMP is discharged through a formal application to Wandsworth for approval of details reserved by condition — the discharge-of-conditions process — which carries its own fee and its own eight-week target. We prepare and lodge that application, respond to any queries the officer raises, and press for the written approval you need before you can lawfully start. Where the wording is ambiguous or the timing is tight, we speak to the case officer directly to keep things moving. The aim throughout is simple: to get the condition discharged as quickly as possible so the project can begin on time.

Once permission is granted, satisfying a CMP condition is a distinct step from the planning application, handled through Wandsworth's process for the discharge — or, more formally, the approval of details reserved by condition. You make an application that identifies the permission, quotes the specific condition, and submits the CMP as the details required to satisfy it. The council registers it, a fee is paid, and an officer assesses the plan against the condition and against the borough's construction guidance.

The statutory determination target for a discharge application is eight weeks, though straightforward CMPs are often dealt with more quickly, and a well-prepared plan that plainly covers everything the condition asked for gives the officer no reason to delay. If the officer is satisfied, they issue a written confirmation that the condition has been discharged — and it is that written approval, on a pre-commencement condition, that you must hold before development lawfully begins. If the officer is not satisfied, they will typically request the missing or additional information rather than refusing outright, but that means resubmission and further time, which is exactly what a properly written plan avoids.

Timing is the practical heart of this. Because a pre-commencement CMP condition must be discharged before work starts, the plan should be prepared and submitted as soon as permission is granted — ideally in parallel with the final pre-start arrangements — rather than left until the builder is ready to begin, only for the project to stall for weeks waiting on approval. We routinely start the CMP the moment a decision notice arrives, so that the discharge runs alongside the run-up to the build rather than blocking it.

It is also worth remembering that the CMP condition is rarely the only pre-commencement condition on a Wandsworth permission. Consents can carry a cluster of them — materials, drainage, ground contamination, tree protection, and more — and several may need to be discharged before the same start date. We map all the pre-commencement conditions on your permission at the outset, so that none is overlooked and the whole set is cleared in time, rather than discovering a forgotten condition on the day the contractor arrives.

The most serious mistake is the simplest: starting work before a pre-commencement CMP condition has been discharged. Owners sometimes assume that because permission has been granted, they can begin — but a genuine pre-commencement condition means the development has not been lawfully begun until that condition is satisfied. Break ground before the CMP is approved and you risk the whole permission being treated as unimplemented, which is a far bigger problem than a few weeks' wait. We flag this on every instruction so it never happens by accident.

The next most common problem is the generic, template CMP. Case officers in Wandsworth read a great many construction plans and can spot a boilerplate document instantly — one that describes a wide access and on-site turning that plainly do not exist on the actual street, or that promises off-street parking on a road that is a controlled parking zone. A plan that does not engage with the real site loses credibility immediately and is sent back for revision. The remedy is to build the plan from the genuine constraints of the plot and street, which is precisely what we do.

Omission is the third recurring failure. Because the required contents are set by the condition, a plan that misses even one listed item — say it covers deliveries, hours and dust thoroughly but forgets wheel-washing or neighbour liaison — cannot be discharged as it stands, and the officer has to request the gap be filled. Checking the plan line by line against the condition before submission catches this every time, and it is the single most effective way to secure a first-time discharge.

Finally, owners frequently underestimate the lead time. A CMP has to be written, submitted and then approved, and the approval alone can take up to eight weeks; the separate licences for skips, hoardings and parking-bay suspensions take their own time; and other pre-commencement conditions may need clearing in parallel. Leaving all of this until the builder is booked is the classic cause of a delayed start. Beginning the CMP as soon as permission is granted, and treating it as part of the pre-start critical path, is how a well-run Wandsworth project avoids losing weeks on the threshold of the build.

The CMP is one of a family of construction and planning documents, and knowing how they relate saves duplication and confusion. The closest relative is the Construction Environmental Management Plan, or CEMP, which shares most of the CMP's content but leans more heavily on environmental protection — ecology, protected species, priority habitats, invasive plants such as Japanese knotweed, and pollution prevention. Wandsworth's local validation checklist can require a CEMP with certain applications, particularly where there are ecological or air-quality considerations, and on many schemes a single well-structured document can serve as both CEMP and CMP.

For larger developments, a Construction Logistics Plan is the transport-focused component — the detailed traffic, routing, delivery-scheduling and vehicle-safety strategy that the London Plan's Policy T7 and TfL guidance call for, built around CLOCS and FORS. On a big scheme the logistics plan may be a standalone document that the CMP refers to; on a house extension it is simply the deliveries-and-traffic section of the CMP itself. Either way the underlying work — understanding how vehicles reach and leave the site safely — is the same.

On basement projects the relevant cousin is the Basement Impact Assessment and the associated construction method statement. Wandsworth's basement guidance requires a construction method statement, independently verified at the applicant's cost for listed buildings and strongly encouraged elsewhere, covering ground and hydrological conditions, temporary propping, and the safeguarding of neighbouring amenity from noise, vibration and dust. That method statement overlaps heavily with a CMP, and on a basement the two are usually prepared together so that the structural methodology and the amenity controls tell a single consistent story.

Finally, the CMP interacts with documents outside the planning system entirely: the party wall notices and awards under the Party Wall etc. Act 1996 that govern the owner's obligations to neighbours during excavation and boundary works, and the construction phase plan required under the CDM Regulations that governs the safety of the works. These are legally distinct from the CMP, but a coherent project aligns them, so that the same construction methodology satisfies the planning condition, the party wall surveyors, and the health-and-safety regime without contradiction.

The cost of a Construction Management Plan falls into two parts: the fee to prepare the document, and the council's fee to determine the application that discharges the condition. The preparation cost is proportionate to the scheme. A concise CMP for a domestic extension, built around a site logistics drawing and the core deliveries-hours-dust-noise-wheel-washing content, is a modest piece of work; a comprehensive plan for a basement, a demolition and rebuild, or a small block — with a dust risk assessment, an NRMM strategy, a detailed traffic and delivery plan and a wheel-washing regime — is a larger one. We quote it against the actual scope of your condition rather than a flat rate, so you pay for the depth your scheme genuinely needs.

The council charges a fee to determine an application to discharge conditions, set nationally and payable per request rather than per condition, so it can be efficient to discharge several conditions together in a single application where they are ready at the same time. Because these fees change periodically, we confirm the current figure at the point of submission. Alongside them sit the separate operational costs that a build in Wandsworth carries — licences for skips and hoardings that stand on the highway, and parking-bay suspensions where a standing vehicle or a delivery needs road space — which are charged by the council for the period they apply and are best budgeted for early.

Set against those costs, the value of a well-prepared CMP is straightforward: it discharges first time and it prevents delay. A plan that bounces back for revision costs weeks, and weeks lost on the threshold of a build — with a contractor booked and finance running — cost far more than the plan itself. On a basement or a substantial project, where a stalled start ripples through the whole programme, getting the CMP right the first time is one of the higher-return pieces of pre-start work an owner can commission.

As with all our work, we set out the likely costs clearly at the start, and the initial conversation about whether your permission carries a CMP condition and what it will take to discharge it is free. If you send us the decision notice, we will tell you exactly which conditions are pre-commencement, what the CMP has to cover, and what preparing and discharging it involves, before you commit to anything.

Crown Architecture is a residential architecture and planning practice, and we handle the whole journey from first sketch to a lawful start on site — including the pre-commencement conditions that so often catch owners out at the last moment. Because we design the schemes and prepare the drawings ourselves, a CMP we write is grounded in a real understanding of the building, the site and the neighbouring context, not assembled from a template. And where we are brought in only to discharge a CMP condition on someone else's scheme, we bring the same site-first approach to it.

We know Wandsworth. We understand how the borough's Construction Code of Practice and its 2023 Local Plan bear on the construction phase, how its highways and environmental health teams think, and how its constrained terraced streets, its controlled parking zones and its forty-six conservation areas shape what a credible CMP has to say. That borough-specific knowledge is what turns a generic plan into one that a Wandsworth officer can discharge without hesitation.

We are also realistic and proportionate. We do not load a small extension with a basement-scale document, and we do not under-cook a plan for a project that genuinely warrants detail. We write to the condition and to the scheme, so the plan is exactly as thorough as it needs to be — which is both cheaper for you and more likely to be approved quickly. And we manage the discharge application itself, dealing with the council directly so you do not have to.

Above all, we treat the CMP as part of getting you onto site on time, not as a box to tick after the fact. We start it the moment permission is granted, we map every pre-commencement condition so none is missed, and we press the council for the written approval you need before you break ground. If you have a Wandsworth permission with a CMP condition — or you are about to apply and want to plan ahead — talk to us, and we will get you from decision notice to lawful start with the least possible delay.