House Extension Plans in Greenwich

Every street in Greenwich carries its own planning history — from Greenwich to Woolwich — and a proposal that wins approval needs to be grounded in that local reality, not generic guidance.

In Greenwich, householder applications for extensions and conversions are among the most common planning submissions. London Borough of Greenwich validates these against national householder development guidance and local policy — and both need to be addressed for the application to be registered quickly.

Permitted development rights allow many householder works in Greenwich to proceed without a planning application, but the scope of these rights depends on the property type, any existing extensions, and whether the site is in a conservation area or affected by an Article 4 direction. Confirming the position before work starts — ideally with a Lawful Development Certificate — avoids an expensive assumption.

While publicly available datasets for Greenwich conservation areas are still being compiled, the general principle applies: any proposal in or adjacent to a designated area must demonstrate how it relates to its setting. Contacting London Borough of Greenwich directly or requesting a pre-application meeting is the most reliable way to confirm constraints before design begins.

Single-storey rear extensions, two-storey rear extensions, side returns, rear dormer additions, and wraparound extensions are all common in Greenwich. Each type carries different planning considerations, structural implications, and cost profiles — and our plans address all of them.

Once the design is agreed, we take the extension plans through planning permission (or permitted development confirmation), building regulation approval, and the construction-issue stage, providing a coordinated set of information for each phase.

House extension plans for Greenwich properties need to address the specific constraints of the site: plot depth, proximity to neighbouring windows, the character of the street, and any conservation area or Article 4 designation that changes what is achievable.

Our involvement in a Greenwich project begins with a free initial call to understand the brief and the property. We then prepare a fee proposal covering the design, planning, and building regulation stages as applicable. Once instructed, measured survey and design work begins within our normal programme.

All projects in Greenwich begin with a free consultation call where we discuss the brief, the property, and the likely planning route. We then issue a detailed fixed-fee proposal before any survey or design work begins, so there are no surprises on costs.

• Free initial consultation and brief assessment
• Fixed-fee proposal covering all agreed services
• Measured survey of the existing property
• Design options and client review
• Planning drawing preparation
• Submission to London Borough of Greenwich
• Officer liaison and application management
• Post-consent building regulation package

Crown Architecture & Structural Engineering Ltd has worked across all 32 London boroughs including Greenwich. Our experience with London Borough of Greenwich's planning requirements, validation standards, and officer expectations means we can prepare applications that progress efficiently and with a high first-time approval rate.

We are a full-service practice — architecture, structural engineering, and planning consultancy under one roof. For Greenwich projects, this means the planning drawings, structural calculations, and building regulation package are all coordinated by the same team rather than produced by separate consultants whose information does not align.

Our registered office is at 71–75 Shelton Street, London WC2H 9JQ (company number 16297850). We are contactable at +44 7950 114633 and cover all projects across London and the home counties, including all areas of Greenwich.

Greenwich is a south-east London borough with strong maritime heritage, significant World Heritage Site designations around Greenwich Park, and a mix of historic and contemporary housing. This character shapes what planning applications are likely to succeed and how they need to be presented to London Borough of Greenwich.

The residential stock in Greenwich consists principally of Georgian and Victorian terraces in the historic core, inter-war and post-war estates on the peninsula, and contemporary new-build developments in Woolwich and Charlton. Understanding how the existing building type responds to extension or alteration is the starting point for any design brief — it defines the structural approach, the planning sensitivities, and the opportunities for the project.

Key areas within Greenwich where we regularly work include Greenwich, Woolwich, Eltham, Charlton. Each of these areas has its own micro-character, planning history, and in some cases specific conservation area or Article 4 designations that affect what is achievable on any given street.

Extension plans for Greenwich homes are most effective when they address both the planning question and the construction question simultaneously. A plan that wins planning permission but requires significant redesign for building regulation compliance wastes time and can cause costs to escalate. Our integrated approach coordinates both from the first design stage.

For Greenwich homeowners who are also considering loft conversion or basement work alongside an extension, we can prepare a masterplan that shows how all the works relate to each other — a useful planning tool both for staging the works and for showing London Borough of Greenwich the overall intention if the planning applications are to be submitted simultaneously or in sequence.

Building regulations apply to most construction works in Greenwich regardless of planning permission status. Extensions, loft conversions, structural alterations, and changes to drainage or electrics all require compliance with the relevant Parts of the Building Regulations, verified by London Borough of Greenwich building control or a registered building control approver.

Building regulation approval in Greenwich runs in parallel to planning consent — they are two separate legal processes. We manage both for clients who wish to use Crown Architecture for the full project, or we can work alongside a client's own building contractor or structural engineer where preferred.