How much does a single storey extension cost in Maidenhead?

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A single storey extension in Maidenhead usually costs between £30,000 and £85,000. The final price depends on size, structure, access, drainage, roof design, specification, and how much work is needed to the existing house. Single storey extensions are usually the simplest way to add ground-floor living space, but the roof, drainage, and opening into the house still need proper design. Costs move when foundations deepen, drains cross the footprint, rooflights or lanterns are added, or a wide opening needs heavier steelwork. The quote should spell out foundations, drainage changes, brick and blockwork, roof finish, insulation, plastering, and Building Control inspections. For Maidenhead homeowners, the quote should separate structural shell, glazing, kitchen/finish allowance, and any drainage or flood-related checks. Maidenhead work often centres on family homes, open-plan layouts, riverside pockets, and higher expectations for finish quality. Many plots have decent access, but drainage, glazing size, and high-specification interiors can move the budget quickly. 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. Maidenhead sits under Royal Borough of Windsor & Maidenhead. The Royal Borough of Windsor & Maidenhead can require careful handling where previous extensions, flood considerations, or conservation edges apply. 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 single 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 Maidenhead and provides free written quotes for single storey extensions. Pindi Sahota has 32 years on the tools and manages projects personally, with fixed-price quotes once the scope is clear.