Builders in Forest Hill

Forest Hill's housing stock is predominantly Edwardian, with larger properties on the higher ground near the Horniman Museum and more compact Victorian terraces closer to the station. Both types see active building work as the area grows in popularity with families priced out of neighbouring Dulwich.

Loft conversions are the most popular project in Forest Hill. Edwardian houses have well-proportioned roof spaces with reasonable headroom, making dormer and hip-to-gable conversions straightforward. The typical conversion creates a double bedroom with en-suite bathroom, adding a fourth bedroom to a three-bedroom family home.

Rear extensions are the other core project type. Forest Hill's Edwardian houses have good-sized rear gardens, and single-storey extensions create the open-plan kitchen-diners that family buyers expect. Most extensions fall within permitted development limits, keeping the planning process simple.

The conservation area around the Horniman Museum applies additional design controls. Extensions and alterations to properties within this zone must be sympathetically designed, using materials and proportions that respect the Edwardian character. Lewisham Council's conservation team reviews applications carefully but is supportive of well-designed improvements.

Edwardian properties in Forest Hill are generally well-built, with solid brick walls, timber floors, and slate roofs that have weathered over a century of London weather. Common maintenance issues include ageing roofs, failing damp-proof courses, and dated heating systems — all of which should be addressed as part of any renovation project.

Forest Hill offers attractive value compared to Dulwich, just over the ridge. The housing quality is similar — handsome Edwardian properties with period features — but prices are lower, making more ambitious renovation projects financially viable. Builders report growing demand as word spreads about the area's quality housing stock.

Content verified by the South London Trades editorial team — last updated March 2026