Housing stock in Merton
Victorian/Edwardian villas in Wimbledon, 1930s semis in Raynes Park and Morden.
Planning in Merton
Wimbledon conservation areas (Village, Common-side) demand high design quality. Merton has a well-documented householder extension SPD.
Party Wall Act — what to expect
Mixed — Wimbledon villas often detached, Mitcham/Raynes Park usually semi.
Read the Party Wall etc. Act 1996 guide for full detail on notices, timelines and surveyor costs.
Typical costs in Merton
For a mid-spec 25 m² rear dormer loft conversion, all-in (structural design, building control, party wall, VAT and 12% contingency), expect roughly £110,000 to £170,000. A mansard, a hip-to-gable with high-spec en-suite joinery or a conservation-area application will push above the top of this range; a self-built rooflight conversion comes in well under the bottom.
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