House extensions & lofts in Raynes Park
Raynes Park's Victorian terraces and 1930s semis extend well — rear kitchens, hip-to-gable lofts, wraparounds. Our recent work nearby includes a completed loft conversion in Worcester Park; the same team designs, prices and builds every SW20 project end to end.
- Postcode SW20
- Borough Merton
- Service Design & build
- Free quote 2 min online
What we deliver in Raynes Park
Every street sits differently — a period terrace, a post-war semi, a modern infill. We shape the recommendation around your actual house, its planning context and how you want to live.
Side-return and rear kitchen extensions are very popular here, especially on narrow plots. Two-storey wrap-around projects add bedrooms and living space in one go.
Dormer and hip-to-gable conversions deliver an extra bedroom or home office without sacrificing garden space.
We occasionally deliver new family homes on underused plots, managing design and planning in-house.
SERVICE 01 House extensions in Raynes Park
Single-storey, double-storey, side-return and wrap-around extensions — designed, planned and built by one in-house team.
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SERVICE 02 Loft conversions in Raynes Park
Dormer, mansard, hip-to-gable and L-shape lofts — full-height ceilings, proper staircases, en-suites.
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SERVICE 03 New builds in Raynes Park
Ground-up homes on infill plots, demolition-and-rebuild, and small multi-unit schemes.
View serviceRecent work near Raynes Park
Our Raynes Park portfolio includes side-return extensions with roof lights, a two-storey wrap-around extension and a dormer conversion for a growing family.
Common Raynes Park questions
Things you might need to know about building in Raynes Park.
Do I need planning permission for an extension in Raynes Park?
Many extensions in Raynes Park fall under permitted development. Where a full application is needed, it goes to Merton Council — we assess your property type, the council's restrictions and any conservation status on the first visit, and handle the application ourselves.
How long does a project in Raynes Park typically take?
From first consultation to handover: 6–9 months for a single-storey extension or loft, 9–14 months for double-storey or wrap-around. We give you a tighter estimate after the survey.
Are there conservation areas in Raynes Park?
Several streets in Merton Council's area fall within conservation areas that restrict materials and detailing. We check your exact address against the register on the first visit, and we have approved schemes in conservation areas nearby.
What is a typical extension cost in Raynes Park?
Build cost in this part of London runs £2,500–£4,000 per square metre for a finished extension including kitchen and finishes. Our calculator gives a personalised estimate.
Other Merton neighbourhoods
We deliver projects across the borough — same team, same pricing, same fixed-price contract.
Ready to start your Raynes Park project?
Get an instant estimate in 2 minutes — no callbacks, no commitment. Or talk to a real person on 0800 0432 333.