Everyresidentialconstructiontypewedeliver.

The London standard. Rear dormers add a full-height bedroom + ensuite under permitted development on most terraces.

The premium loft. Vertical rear wall + 70-degree slate roof. Maximum floor area on Georgian and Victorian terraces.

The semi-detached upgrade. Replace the hipped side roof with a vertical gable wall to unlock a full dormer behind.

The Victorian terrace specialist. Build a dormer over both the main roof and the rear closet wing for two bedrooms + bathroom.

The cheapest, fastest loft. Insulate the existing roof, install rooflights, and add a fire-rated stair — no roof alteration.

The classic kitchen-diner extension. Fill the side alley of a Victorian terrace for a 3–4m wider open-plan kitchen.

Extend the back of the house up to 6m under the prior approval route. Open-plan kitchen-diner with garden views.

Side return + rear extension combined into one L-shape ground floor. Largest single-storey footprint without going double-storey.

Two floors of extension — bigger kitchen below, extra bedroom + bathroom above. The full upsize without moving.

Extension build plus full kitchen fit-out in one fixed-price project. Open-plan kitchen-diner with bifold doors and roof lantern.

Convert an attached garage to a bedroom, office or living room. No new foundations or external walls. From £25,000 in 4–8 weeks.

Transform a detached outbuilding into annexe, home office, studio or garden room. Independent from main house, own entrance.

Open up your ground floor — steel beam install, structural calcs, building regs and party wall, fixed-scope.

Steel beam supply and install for openings, extensions and structural alterations — engineer-signed, building-regs certified.

Strengthen existing foundations — for subsidence repair, basement excavation or load increase. Engineer-led, building-regs compliant.

Convert your existing under-house cellar into a habitable home office, utility, gym or guest room — no excavation needed.

Create a new basement under your existing house — full excavation, underpinning, waterproofing and habitable fit-out.

Add basement floor area beyond the existing house footprint — sub-garden excavation with light wells for cinema, gym, spa.