Question 1

What loft conversion options suit the Edwardian semis in Wimbledon Park (SW19, SW20)?

Accepted Answer

Edwardian semis along the hillside roads of SW19 and SW20 — between Wimbledon and Wimbledon Park stations — typically carry enough ridge height for a rear dormer that delivers a full double bedroom and en-suite without touching the roof structure at the flank wall. Where the roof tapers to a hip above the party wall, a hip-to-gable conversion extends the ridge to the boundary and opens up a considerably larger habitable volume. PrimeCraft assesses structural loading, permitted development thresholds and neighbour implications during the free site survey, then issues a fully itemised same-day quote covering steelwork, dormer build, fit-out and Building Regulations sign-off.

Question 2

What does Wimbledon Village conservation area (SW19) mean for planning permission on building works?

Accepted Answer

The Wimbledon Village conservation area takes in the historic streets around the Common — Church Road, The Ridgway and their connecting residential roads. Within this zone, Merton Council's Article 4 directions can remove permitted development rights for front extensions, roof alterations and changes to external materials or finishes. Rear extensions and internal renovations are less commonly caught by these restrictions, but the boundaries vary street by street. Running a pre-application enquiry with Merton Planning before committing to any external scheme avoids abortive design expenditure. PrimeCraft checks every SW19 address against current conservation area boundaries at the site visit stage before any quote or design fee is agreed.

Question 3

How much does a rear extension or whole-house renovation cost on a 1930s semi in Mitcham or Morden (CR4, SM4)?

Accepted Answer

A single-storey rear extension of 10–14 m² on a 1930s semi in CR4 or SM4 — structural steelwork, Building Regulations submission, roofing, glazing, insulation and plastered shell — typically costs £35,000–£55,000. Combining that with a full kitchen refit moves the total to approximately £53,000–£77,000. A full three-bedroom renovation across Mitcham or Morden — taking in kitchen, bathroom, a loft conversion, replastering and redecoration — generally falls between £105,000 and £158,000 at mid-range specification. PrimeCraft issues a written, trade-by-trade breakdown on the day of the site visit for every CR4 and SM4 project.

Builders inMerton.

Services we deliver in Merton

Districts in Merton we cover

Nearby areas we also cover

Commonquestions, Merton.

Let's talk through what you're planning.