Richmond · South West London
Richmond upon Thames is one of London's most desirable boroughs, with period homes set on generous plots along tree-lined streets. We design and build extensions, loft conversions and new homes that respect the area's character while giving you the space and light your home needs.
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Working in Richmond
Richmond's housing stock offers more space and variety than most parts of inner London. The borough has Victorian and Edwardian houses on wider plots, Georgian properties around Richmond Green, and inter-war family homes across Twickenham, Kew and East Sheen. This means more room for ambitious projects - larger rear extensions, double storey extensions, and in some cases, new build homes on subdivided land.
Loft conversions are popular across the borough. The larger roof spaces on Richmond's detached and semi-detached houses lend themselves to generous dormer and hip-to-gable conversions. Basement conversions are also increasingly common, particularly on larger properties where maximising space without extending the footprint is a priority.
As experienced residential architectural designers in London, we handle both design and construction. One team manages architecture, planning and building under a single contract.
Services in Richmond
The range of projects we take on in Richmond reflects the variety of the housing stock. Alongside standard extensions and loft conversions, we design new build homes, handle basement conversions, manage whole-house renovations and provide interior design services.
Richmond Council values design quality, which means every application needs to demonstrate genuine thought about materials, proportions and how the new work relates to the existing building. Our design-and-build approach ensures that the quality shown in the drawings is delivered on site.
Planning in Richmond
Richmond upon Thames has extensive conservation area coverage. Richmond Green, Richmond Hill, parts of Twickenham, Kew, Barnes and East Sheen all fall within conservation areas where Permitted Development rights are restricted. Many properties will need a full planning application for any external changes.
The council is generally receptive to well-designed contemporary additions, particularly at the rear where they are not visible from the street. Front elevations and street-facing elements are more closely scrutinised. Properties near the Thames may require a flood risk assessment as part of any planning application.
For new build homes, Richmond's local plan supports sensitive residential development where it respects the character of the area. Larger plots sometimes offer subdivision opportunities, though each case is assessed individually. We advise on feasibility before any significant investment in design work.
Cost Guide
Construction costs in Richmond typically range from £2,500 to £4,000 per square metre, depending on specification and complexity. A rear extension usually costs between £70,000 and £150,000. Double storey extensions typically come in at £120,000 to £220,000.
Loft conversions range from £55,000 to £110,000 depending on the type. Basement conversions typically run from £150,000 to £350,000 depending on size and ground conditions. New build homes start from around £2,500 per square metre for construction, though specification drives the final cost significantly.
Professional fees for architecture, structural engineering and building regulations usually add 10 to 15 percent on top. For broader London pricing, see our house extension cost guide.
Cost Calculator
Tell us the size, location and finish level. Our calculator returns a realistic range for your extension or loft conversion, with a detailed breakdown available.
Property Types
Richmond has one of the most varied and high-quality housing stocks in London. Georgian townhouses and cottages around Richmond Green and along the Hill date from the 18th century and are among the most architecturally significant in the borough. Victorian and Edwardian houses are common across Twickenham, East Sheen and St Margarets.
Barnes has a village character with a mix of Victorian terraces and larger detached properties. Kew has substantial Edwardian houses near the Gardens. The wider borough includes inter-war family homes and some post-war developments. Each area has its own conservation context and planning sensitivities.
Nearby Areas
Alongside Richmond, we regularly take on projects in Twickenham, Kew, East Sheen, Barnes, Kingston, Hampton, St Margarets and Mortlake. We also cover Wimbledon, Putney and Wandsworth across the river.
Outside South West London, we work across all of Greater London and within a 30-mile radius, including Chelsea, Kensington, Hampstead, Islington, Hackney, Camden and Surrey.
Common Questions
