Double Storey Extensions in Ascot

How much does a double storey extension cost in Ascot?

A double storey extension in Ascot usually costs between £65,000 and £150,000. The final price depends on size, structure, access, drainage, roof design, specification, and how much work is needed to the existing house.

Double storey extensions add space upstairs and downstairs, so the structure, roof tie-in, drainage, and neighbour impact need more careful coordination. Planning risk is higher because height, overlooking, loss of light, and roof massing matter more than on most single storey work.

The quote should include foundations sized for two floors, steels, floor structure, roof alterations, stairs or landing changes, and upstairs making good. For Ascot homeowners, the quote should explain how the finish, glazing, garden connection, and site protection are being handled, not just the shell price.

Ascot work often involves larger detached homes, mature plots, gated drives, and owners who want the build to feel high-quality without becoming showy. Driveway space is usually better than in town-centre locations, but long private drives, protected trees, and premium finishes can change sequencing and protection costs.

Cost should be read as a range until the house has been inspected and the scope is written down. A dependable price needs assumptions on structure, foundations, access, drainage, finish level, Building Control, and what is excluded.

Ascot sits under Royal Borough of Windsor & Maidenhead. Sunninghill, Cheapside, and the village-centre pockets can need closer conservation and neighbour-impact checks than newer estate roads.

Planning permission and Building Regulations are separate. Even if planning is simple, Building Control still needs the relevant structure, insulation, drainage, fire safety, ventilation, electrics, roof work, and final completion evidence for the specific double storey extension.

Before agreeing the work, ask for a written scope that names inclusions, exclusions, payment stages, variation process, site protection, waste removal, and who manages the job day to day. That is the difference between a headline price and a buildable quote.

Berkshire Bespoke Builders covers Ascot and provides free written quotes for double storey extensions. Pindi Sahota has 32 years on the tools and manages projects personally, with fixed-price quotes once the scope is clear.