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Practical advice on costs, planning, regulations and construction — written by the team that actually builds the projects.
Every loft type priced for London 2026 — rooflight, dormer, hip-to-gable, L-shape and mansard — plus the planning rules, building regs and the cost drivers most guides skip.
Real prices from real London projects — single-storey, double-storey, side-return and kitchen extensions broken down by type, size and specification.
What you can build without planning permission, how far you can extend, and when you need to apply. A practical guide for London homeowners.
Send the drawings, the address, and a rough budget — a director will reply within one working day.
