Loft Conversion Specialists in Clapham

Loft conversion cost in Clapham typically ranges from £35,000 to £75,000 depending on the type, size, and specification. Velux conversions sit at the lower end, while dormer and mansard conversions command higher budgets due to structural complexity. Buildaway provides detailed, transparent quotes so you know exactly what to expect before work begins.

Clapham loft conversion costs are broadly in line with Greater London pricing, which sits slightly above the UK average due to labour and material costs in the capital. The national average for a basic loft conversion is around £20,000–£45,000, while London projects typically start from £35,000. Buildaway offers competitive loft conversion cost UK-aligned pricing without compromising on quality.

Most loft conversions in Clapham take between 6 and 12 weeks from start to completion, depending on the conversion type. A straightforward velux conversion may complete in 6–8 weeks, while a full mansard or hip-to-gable project can take up to 12 weeks. Buildaway provides a clear project timeline before work starts.

We offer the full range — velux, dormer, hip-to-gable, and mansard loft conversions in Clapham. Each type suits different property styles and budget requirements. Many Victorian and Edwardian terraces common in SW4 and SW11 are particularly well suited to rear dormer conversions, which maximise usable headroom and floor space.

Loft conversion planning in Clapham begins with a feasibility survey to assess your roof space, headroom, and structural suitability. Buildaway handles the full planning process — from permitted development checks and architectural drawings to building regulation submissions and structural calculations. We guide you through every step so nothing is overlooked.

Yes — Buildaway is a fully integrated loft conversion company that manages design and construction entirely in-house. From initial loft conversion ideas and architectural plans through to structural work, joinery, electrics, insulation, and final finishes, our team handles everything. There's no need to coordinate separate contractors.

Yes. Buildaway's loft conversion specialists work regularly across Clapham and the wider South West London area, including SW4, SW11, and SW12. Our familiarity with local property types, council planning requirements, and neighbourhood character means your project is in experienced, local hands from start to finish.