Rear Extension in NW London

Select Your Area

We provide rear extension across NW London's premier neighbourhoods. Each area has specific planning rules and property characteristics — select yours for tailored information.

How It Works

1. 1

   Site Survey and Design Brief

   We survey the rear garden, measure existing room layouts, and establish the maximum footprint permitted by the planning authority. We confirm the position of any drainage runs, manholes, and underground services that will affect foundation design. From this we establish the design brief with your architect.

2. 2

   Planning Application or Permitted Development Confirmation

   In conservation areas and Article 4 zones, full planning permission is required. Where PD rights exist, we apply for a Lawful Development Certificate to confirm permitted development status before work starts — protecting your investment against future challenges at sale. We manage the full planning or LDC process.

3. 3

   Architectural Design

   A RIBA architect produces construction drawings including floor plans, sections, elevations, and roof details. In conservation areas the external materials — brick, render, glazing — are selected to satisfy the design requirements of the planning authority. Full plans are submitted to building control alongside the structural engineer's calculations.

Select an area above to see the complete 8-step process with area-specific planning guidance.