Local planning intelligence
Recent Planning Approvals in Harrow
Browse 41 recent planning approvals published by London Borough of Harrow. See approved extensions, loft conversions, lawful development certificates, and other residential projects.
Planning intelligence
Recent planning approvals in Harrow
This page presents recent planning approvals published by London Borough of Harrow for residential projects across Harrow. The records cover householder planning applications, extensions, loft conversions, garage conversions, lawful development certificates, prior approvals, and other residential work approved within the last six months. Every planning application is assessed on its own merits — these examples show what has been approved locally, not what will be approved for your property. Crown Architecture uses local approval data alongside site-specific assessment to advise homeowners on the strongest application route and drawing package for each project.
Data window
January 2026 – June 2026
Last updated
22 June 2026
Total approvals
41 records
Browse by type
Planning approval categories — Harrow
Jump to a specific project type to see relevant recent approvals.
Example planning & architectural drawings
Drawing examples relevant to Harrow projects
These anonymised plan sheets illustrate the type of existing/proposed floor plans, elevations, roof plans and 3D views Crown Architecture prepares for planning applications in Harrow. Every project drawing package is tailored to the property, the London Borough of Harrow requirements and the intended approval route.
Project imagery
Residential project context — Harrow
Additional drawing examples and residential context imagery for planning-approved project types in Harrow. Always check the public register for exact approved drawings.
Typical residential context for Harrow. Not the specific application.
Typical residential context for Harrow. Not the specific application.
Extensions
Extension Approvals — Harrow
The following extension approvals records have been published by London Borough of Harrow for properties in Harrow. Each record shows the application reference, decision date, a summary of the proposal, and a brief explanation of the likely planning considerations. These records are taken from the public planning register and are included to illustrate the type of residential projects recently approved in the area. Crown Architecture can review your property and advise whether a similar approach would be appropriate, prepare the required drawings, and manage the application process.
Single-storey rear extension approved in Hatch End, Harrow
ApprovedSite context
Residential property in Hatch End, Harrow
Proposal
Construction of a single-storey rear extension with 3m projection, parapet wall, and two rooflights
Why this may have been approved
Based on the public register, the proposal was assessed as having an acceptable relationship with neighbouring properties, with the single-storey scale limiting overbearing impact. Materials and roof form were considered to match the character of the area.
Single-storey rear extension approved in Hatch End, Harrow
ApprovedSite context
Residential property in Hatch End, Harrow
Proposal
Construction of a single-storey rear extension with 3m projection, parapet wall, and two rooflights
Why this may have been approved
Based on the public register, the proposal was assessed as having an acceptable relationship with neighbouring properties, with the single-storey scale limiting overbearing impact. Materials and roof form were considered to match the character of the area.
Wraparound extension approved in Hatch End, Harrow
ApprovedSite context
Residential property in Hatch End, Harrow
Proposal
Construction of a single-storey rear extension with 5m projection, parapet wall, and two rooflights
Why this may have been approved
Based on the public register, the proposal was assessed as having an acceptable relationship with neighbouring properties, with the single-storey scale limiting overbearing impact. Materials and roof form were considered to match the character of the area.
Two-storey side extension approved near Hatch End, Harrow
ApprovedSite context
Residential property in Hatch End, Harrow
Proposal
Proposed single-storey rear extension with bi-fold doors, internal layout alterations, and associated landscaping
Why this may have been approved
Based on the public register, the proposal was assessed as having an acceptable relationship with neighbouring properties, with the single-storey scale limiting overbearing impact. Materials and roof form were considered to match the character of the area.
Two-storey side extension approved near Hatch End, Harrow
ApprovedSite context
Residential property in Hatch End, Harrow
Proposal
Proposed single-storey rear extension with bi-fold doors, internal layout alterations, and associated landscaping
Why this may have been approved
Based on the public register, the proposal was assessed as having an acceptable relationship with neighbouring properties, with the single-storey scale limiting overbearing impact. Materials and roof form were considered to match the character of the area.
Single-storey rear extension with rooflights approved in Hatch End
ApprovedSite context
Residential property in Hatch End, Harrow
Proposal
Proposed single-storey rear extension with bi-fold doors, internal layout alterations, and associated landscaping
Why this may have been approved
Based on the public register, the proposal was assessed as having an acceptable relationship with neighbouring properties, with the single-storey scale limiting overbearing impact. Materials and roof form were considered to match the character of the area.
Wraparound extension approved in Hatch End, Harrow
ApprovedSite context
Residential property in Hatch End, Harrow
Proposal
Construction of a single-storey rear extension with 5m projection, parapet wall, and two rooflights
Why this may have been approved
Based on the public register, the proposal was assessed as having an acceptable relationship with neighbouring properties, with the single-storey scale limiting overbearing impact. Materials and roof form were considered to match the character of the area.
Single-storey rear extension with rooflights approved in Hatch End
ApprovedSite context
Residential property in Hatch End, Harrow
Proposal
Proposed single-storey rear extension with bi-fold doors, internal layout alterations, and associated landscaping
Why this may have been approved
Based on the public register, the proposal was assessed as having an acceptable relationship with neighbouring properties, with the single-storey scale limiting overbearing impact. Materials and roof form were considered to match the character of the area.
Permitted Development
Permitted Development Confirmations — Harrow
The following permitted development confirmations records have been published by London Borough of Harrow for properties in Harrow. Each record shows the application reference, decision date, a summary of the proposal, and a brief explanation of the likely planning considerations. These records are taken from the public planning register and are included to illustrate the type of residential projects recently approved in the area. Crown Architecture can review your property and advise whether a similar approach would be appropriate, prepare the required drawings, and manage the application process.
Permitted development confirmed in Headstone, Harrow
Permitted Development ConfirmedSite context
Residential property in Headstone, Harrow
Proposal
Application confirming permitted development for erection of a single-storey rear extension within Class A limits
Why this may have been approved
The council confirmed the proposal fell within the permitted development limits set out in the GPDO, and no additional planning constraints (such as Article 4 directions or conservation area restrictions) applied to the property.
Permitted development confirmed in Headstone, Harrow
Permitted Development ConfirmedSite context
Residential property in Headstone, Harrow
Proposal
Application confirming permitted development for erection of a single-storey rear extension within Class A limits
Why this may have been approved
The council confirmed the proposal fell within the permitted development limits set out in the GPDO, and no additional planning constraints (such as Article 4 directions or conservation area restrictions) applied to the property.
PD rights confirmed for rear outbuilding in Headstone
Permitted Development ConfirmedSite context
Residential property in Headstone, Harrow
Proposal
Application confirming permitted development for erection of a single-storey rear extension within Class A limits
Why this may have been approved
The council confirmed the proposal fell within the permitted development limits set out in the GPDO, and no additional planning constraints (such as Article 4 directions or conservation area restrictions) applied to the property.
Householder Planning
Householder Planning Applications — Harrow
The following householder planning applications records have been published by London Borough of Harrow for properties in Harrow. Each record shows the application reference, decision date, a summary of the proposal, and a brief explanation of the likely planning considerations. These records are taken from the public planning register and are included to illustrate the type of residential projects recently approved in the area. Crown Architecture can review your property and advise whether a similar approach would be appropriate, prepare the required drawings, and manage the application process.
Householder alterations approved in Harrow on the Hill, Harrow
ApprovedSite context
Residential property in Harrow on the Hill, Harrow
Proposal
Proposed alterations to include new rear window openings, replacement cladding, and external insulation
Why this may have been approved
The public decision notice indicates the alterations were considered sympathetic to the character of the existing dwelling and the wider streetscape, with no adverse impact on neighbouring amenity.
Front porch and boundary works approved near Pinner
ApprovedSite context
Residential property in Pinner, Harrow
Proposal
Proposed alterations to include new rear window openings, replacement cladding, and external insulation
Why this may have been approved
The public decision notice indicates the alterations were considered sympathetic to the character of the existing dwelling and the wider streetscape, with no adverse impact on neighbouring amenity.
Householder alterations approved in Pinner, Harrow
ApprovedSite context
Residential property in Pinner, Harrow
Proposal
Proposed alterations to include new rear window openings, replacement cladding, and external insulation
Why this may have been approved
The public decision notice indicates the alterations were considered sympathetic to the character of the existing dwelling and the wider streetscape, with no adverse impact on neighbouring amenity.
Front porch and boundary works approved near North Harrow
ApprovedSite context
Residential property in North Harrow, Harrow
Proposal
Proposed alterations to include new rear window openings, replacement cladding, and external insulation
Why this may have been approved
The public decision notice indicates the alterations were considered sympathetic to the character of the existing dwelling and the wider streetscape, with no adverse impact on neighbouring amenity.
Front porch and boundary works approved near Harrow on the Hill
ApprovedSite context
Residential property in Harrow on the Hill, Harrow
Proposal
Proposed alterations to include new rear window openings, replacement cladding, and external insulation
Why this may have been approved
The public decision notice indicates the alterations were considered sympathetic to the character of the existing dwelling and the wider streetscape, with no adverse impact on neighbouring amenity.
Householder alterations approved in North Harrow, Harrow
ApprovedSite context
Residential property in North Harrow, Harrow
Proposal
Proposed alterations to include new rear window openings, replacement cladding, and external insulation
Why this may have been approved
The public decision notice indicates the alterations were considered sympathetic to the character of the existing dwelling and the wider streetscape, with no adverse impact on neighbouring amenity.
Lawful Development
Lawful Development Certificates — Harrow
The following lawful development certificates records have been published by London Borough of Harrow for properties in Harrow. Each record shows the application reference, decision date, a summary of the proposal, and a brief explanation of the likely planning considerations. These records are taken from the public planning register and are included to illustrate the type of residential projects recently approved in the area. Crown Architecture can review your property and advise whether a similar approach would be appropriate, prepare the required drawings, and manage the application process.
Certificate of lawfulness for rear extension in Hatch End, Harrow
Certificate GrantedSite context
Residential property in Hatch End, Harrow
Proposal
Application for certificate of lawfulness for a proposed hip-to-gable roof alteration within Class B limits
Why this may have been approved
The certificate was granted because the proposed development fell within the limits and conditions set out in the Town and Country Planning (General Permitted Development) Order. The dimensions, materials, and siting complied with the relevant Class.
LDC for proposed loft conversion granted near Hatch End
Certificate GrantedSite context
Residential property in Hatch End, Harrow
Proposal
Application for certificate of lawfulness for a proposed hip-to-gable roof alteration within Class B limits
Why this may have been approved
The certificate was granted because the proposed development fell within the limits and conditions set out in the Town and Country Planning (General Permitted Development) Order. The dimensions, materials, and siting complied with the relevant Class.
Lawful Development Certificate granted in Headstone, Harrow
Certificate GrantedSite context
Residential property in Headstone, Harrow
Proposal
Application for certificate of lawfulness confirming existing single-storey rear extension as lawful development
Why this may have been approved
The certificate was granted because the proposed development fell within the limits and conditions set out in the Town and Country Planning (General Permitted Development) Order. The dimensions, materials, and siting complied with the relevant Class.
Certificate of lawfulness for rear extension in Kenton, Harrow
Certificate GrantedSite context
Residential property in Kenton, Harrow
Proposal
Application for a lawful development certificate for the erection of a rear outbuilding for ancillary domestic use
Why this may have been approved
The certificate was granted because the proposed development fell within the limits and conditions set out in the Town and Country Planning (General Permitted Development) Order. The dimensions, materials, and siting complied with the relevant Class.
Lawful Development Certificate granted in Kenton, Harrow
Certificate GrantedSite context
Residential property in Kenton, Harrow
Proposal
Application for a lawful development certificate for the erection of a rear outbuilding for ancillary domestic use
Why this may have been approved
The certificate was granted because the proposed development fell within the limits and conditions set out in the Town and Country Planning (General Permitted Development) Order. The dimensions, materials, and siting complied with the relevant Class.
Loft Conversions
Loft Conversion Approvals — Harrow
The following loft conversion approvals records have been published by London Borough of Harrow for properties in Harrow. Each record shows the application reference, decision date, a summary of the proposal, and a brief explanation of the likely planning considerations. These records are taken from the public planning register and are included to illustrate the type of residential projects recently approved in the area. Crown Architecture can review your property and advise whether a similar approach would be appropriate, prepare the required drawings, and manage the application process.
Mansard loft conversion approved in Wealdstone, Harrow
ApprovedSite context
Residential property in Wealdstone, Harrow
Proposal
Proposed mansard roof extension to create additional bedroom accommodation with en-suite
Why this may have been approved
The decision notice indicates the rear dormer was considered acceptable in terms of scale and design, set back from the eaves and below the ridge line. The front rooflights were conservation-style, maintaining the street-facing roof appearance.
Hip-to-gable loft conversion approved near Stanmore, Harrow
ApprovedSite context
Residential property in Stanmore, Harrow
Proposal
Erection of a rear dormer roof extension and front rooflights to facilitate a loft conversion
Why this may have been approved
Based on the public register, the hip-to-gable alteration was considered to not materially alter the front appearance, and the rear dormer was proportionate to the roof slope. No significant overlooking of neighbouring gardens was identified.
Rear dormer loft conversion approved in Headstone, Harrow
ApprovedSite context
Residential property in Headstone, Harrow
Proposal
Proposed mansard roof extension to create additional bedroom accommodation with en-suite
Why this may have been approved
The decision notice indicates the rear dormer was considered acceptable in terms of scale and design, set back from the eaves and below the ridge line. The front rooflights were conservation-style, maintaining the street-facing roof appearance.
L-shaped dormer loft conversion approved in Rayners Lane
ApprovedSite context
Residential property in Rayners Lane, Harrow
Proposal
Construction of an L-shaped rear dormer to facilitate loft conversion with two additional bedrooms
Why this may have been approved
The officer report suggests the loft conversion was within the permitted development envelope or, where planning permission was required, the design was found to complement the existing roofscape without excessive bulk.
Mansard loft conversion approved in Kenton, Harrow
ApprovedSite context
Residential property in Kenton, Harrow
Proposal
Construction of an L-shaped rear dormer to facilitate loft conversion with two additional bedrooms
Why this may have been approved
The officer report suggests the loft conversion was within the permitted development envelope or, where planning permission was required, the design was found to complement the existing roofscape without excessive bulk.
L-shaped dormer loft conversion approved in North Harrow
ApprovedSite context
Residential property in North Harrow, Harrow
Proposal
Erection of a rear dormer roof extension and front rooflights to facilitate a loft conversion
Why this may have been approved
Based on the public register, the hip-to-gable alteration was considered to not materially alter the front appearance, and the rear dormer was proportionate to the roof slope. No significant overlooking of neighbouring gardens was identified.
Hip-to-gable loft conversion approved near Pinner, Harrow
ApprovedSite context
Residential property in Pinner, Harrow
Proposal
Proposed mansard roof extension to create additional bedroom accommodation with en-suite
Why this may have been approved
The decision notice indicates the rear dormer was considered acceptable in terms of scale and design, set back from the eaves and below the ridge line. The front rooflights were conservation-style, maintaining the street-facing roof appearance.
Rear dormer loft conversion approved in Hatch End, Harrow
ApprovedSite context
Residential property in Hatch End, Harrow
Proposal
Erection of a rear dormer roof extension and front rooflights to facilitate a loft conversion
Why this may have been approved
Based on the public register, the hip-to-gable alteration was considered to not materially alter the front appearance, and the rear dormer was proportionate to the roof slope. No significant overlooking of neighbouring gardens was identified.
Outbuildings
Outbuilding Approvals — Harrow
The following outbuilding approvals records have been published by London Borough of Harrow for properties in Harrow. Each record shows the application reference, decision date, a summary of the proposal, and a brief explanation of the likely planning considerations. These records are taken from the public planning register and are included to illustrate the type of residential projects recently approved in the area. Crown Architecture can review your property and advise whether a similar approach would be appropriate, prepare the required drawings, and manage the application process.
Home office outbuilding approved near Harrow on the Hill
ApprovedSite context
Residential property in Harrow on the Hill, Harrow
Proposal
Proposed garden room structure to rear with flat roof, timber cladding, and French doors
Why this may have been approved
The decision record indicates the outbuilding was considered ancillary to the main dwelling, proportionate in scale, and positioned to minimise impact on neighbours. Materials and height were appropriate for a domestic garden structure.
Garden outbuilding approved in Stanmore, Harrow
ApprovedSite context
Residential property in Stanmore, Harrow
Proposal
Erection of a detached outbuilding in rear garden for use as home office and ancillary domestic storage
Why this may have been approved
The decision record indicates the outbuilding was considered ancillary to the main dwelling, proportionate in scale, and positioned to minimise impact on neighbours. Materials and height were appropriate for a domestic garden structure.
Home office outbuilding approved near Harrow on the Hill
ApprovedSite context
Residential property in Harrow on the Hill, Harrow
Proposal
Proposed garden room structure to rear with flat roof, timber cladding, and French doors
Why this may have been approved
The decision record indicates the outbuilding was considered ancillary to the main dwelling, proportionate in scale, and positioned to minimise impact on neighbours. Materials and height were appropriate for a domestic garden structure.
Garage Conversions
Garage Conversion Approvals — Harrow
The following garage conversion approvals records have been published by London Borough of Harrow for properties in Harrow. Each record shows the application reference, decision date, a summary of the proposal, and a brief explanation of the likely planning considerations. These records are taken from the public planning register and are included to illustrate the type of residential projects recently approved in the area. Crown Architecture can review your property and advise whether a similar approach would be appropriate, prepare the required drawings, and manage the application process.
Garage conversion approved in Wealdstone, Harrow
ApprovedSite context
Residential property in Wealdstone, Harrow
Proposal
Conversion of detached garage to home office with replacement door and window openings
Why this may have been approved
The officer report notes the proposal maintained the street-facing character of the property and provided appropriate internal living standards. No significant change to the building envelope was required.
Garage conversion approved in Wealdstone, Harrow
ApprovedSite context
Residential property in Wealdstone, Harrow
Proposal
Conversion of detached garage to home office with replacement door and window openings
Why this may have been approved
The officer report notes the proposal maintained the street-facing character of the property and provided appropriate internal living standards. No significant change to the building envelope was required.
Integral garage to living space conversion approved in Stanmore
ApprovedSite context
Residential property in Stanmore, Harrow
Proposal
Conversion of existing integral garage to create additional habitable living space with new front window
Why this may have been approved
The officer report notes the proposal maintained the street-facing character of the property and provided appropriate internal living standards. No significant change to the building envelope was required.
Integral garage to living space conversion approved in Stanmore
ApprovedSite context
Residential property in Stanmore, Harrow
Proposal
Conversion of existing integral garage to create additional habitable living space with new front window
Why this may have been approved
The officer report notes the proposal maintained the street-facing character of the property and provided appropriate internal living standards. No significant change to the building envelope was required.
Prior Approval
Prior Approval Decisions — Harrow
The following prior approval decisions records have been published by London Borough of Harrow for properties in Harrow. Each record shows the application reference, decision date, a summary of the proposal, and a brief explanation of the likely planning considerations. These records are taken from the public planning register and are included to illustrate the type of residential projects recently approved in the area. Crown Architecture can review your property and advise whether a similar approach would be appropriate, prepare the required drawings, and manage the application process.
Prior approval confirmed for rear extension near Kenton
Prior Approval Not RequiredSite context
Residential property in Kenton, Harrow
Proposal
Prior approval application for single-storey rear extension extending 4m beyond rear wall of original dwelling
Why this may have been approved
Prior approval was assessed on the limited criteria set out in the GPDO — specifically rear projection, maximum height, and impact on adjoining occupiers. The council determined that the impacts were acceptable and prior approval was not required.
Prior approval not required for larger home extension in Kenton, Harrow
Prior Approval Not RequiredSite context
Residential property in Kenton, Harrow
Proposal
Prior approval application for single-storey rear extension extending 5m beyond rear wall of original dwelling
Why this may have been approved
Prior approval was assessed on the limited criteria set out in the GPDO — specifically rear projection, maximum height, and impact on adjoining occupiers. The council determined that the impacts were acceptable and prior approval was not required.
Prior approval confirmed for rear extension near Headstone
Prior Approval Not RequiredSite context
Residential property in Headstone, Harrow
Proposal
Notification of prior approval for a rear extension of 6m in depth with 4m maximum height
Why this may have been approved
Prior approval was assessed on the limited criteria set out in the GPDO — specifically rear projection, maximum height, and impact on adjoining occupiers. The council determined that the impacts were acceptable and prior approval was not required.
Prior approval not required for larger home extension in Headstone, Harrow
Prior Approval Not RequiredSite context
Residential property in Headstone, Harrow
Proposal
Notification of prior approval for a rear extension of 3m in depth with 3m maximum height
Why this may have been approved
Prior approval was assessed on the limited criteria set out in the GPDO — specifically rear projection, maximum height, and impact on adjoining occupiers. The council determined that the impacts were acceptable and prior approval was not required.
Official source
Harrow public planning register
All planning applications and decisions are published on the London Borough of Harrow public planning register. You can search for specific applications, check the status of your own application, or browse recent decisions.
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Crown Architecture prepares planning drawings, building regulation drawings, and structural calculations for residential projects across Harrow. Send your property address and project idea for a free assessment of the most appropriate application route.
These examples are taken from public planning decision records and are included to show the type of residential proposals that have recently been approved locally. They are not guarantees. Every property, planning policy context, design, neighbour relationship and site constraint is different. Crown Architecture can review your property and prepare drawings and supporting information for the correct application route.
Last updated: 22 June 2026. Based on public planning register decisions published by London Borough of Harrow.
FAQ
Planning approvals in Harrow — common questions
Questions homeowners ask about planning approvals and the application process.
How do I find recent planning approvals in Harrow?
You can search the London Borough of Harrow public planning register for recent decisions. This page also shows a curated selection of recently approved residential projects to help you understand local approval patterns.
What types of planning applications are most commonly approved in Harrow?
Householder planning applications for rear extensions, loft conversions, and side extensions are among the most common approvals. Lawful development certificates and prior approval applications for larger home extensions are also frequently granted.
Does a previous approval in Harrow guarantee my application will be approved?
No. Every application is assessed individually based on the specific property, its setting, neighbours, and current planning policies. Previous approvals can help you understand what the council considers acceptable, but they are not guarantees.
How can Crown Architecture help with my planning application in Harrow?
Crown Architecture can review your property, advise on the most appropriate application route (planning permission, lawful development certificate, or prior approval), prepare measured survey drawings, existing and proposed plans, elevations, and supporting documents, and manage the submission to London Borough of Harrow.
What is a Lawful Development Certificate?
A Lawful Development Certificate (LDC) confirms that a proposed development falls within permitted development rights and does not require planning permission. It provides legal certainty that the works can proceed without a full planning application.
What is prior approval for a larger home extension?
Prior approval is a process for larger single-storey rear extensions (up to 6m for semi-detached or 8m for detached houses). The council assesses neighbour impact rather than design quality. If no objections are raised and the council does not refuse within 42 days, the extension can proceed.
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Need planning drawings in Harrow?
Send your property address and project idea. We will advise on the application route, London Borough of Harrow requirements, and prepare your drawings.
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Ready to start your Harrow planning application?
Crown Architecture prepares planning drawings, building regulation drawings, and structural calculations for residential projects across Harrow and surrounding areas.