Cost FAQ
How much does a rear extension cost in London?
Drawings: from £1,225 fixed. Build: £35,000-£60,000 single-storey, £75,000-£130,000 double-storey, £90,000-£150,000 wrap-around.
Drawings: from £1,225 fixed. Build: £35,000-£60,000 single-storey, £75,000-£130,000 double-storey, £90,000-£150,000 wrap-around.
MCIAT chartered drawings for planning, building regs, lofts and extensions — fixed fees 30% below typical London architects. Tell us what you need and we’ll reply the same working day.
Pick a slot that suits you. No obligation and no sales pressure — just straight answers on your planning route, fixed fee and timescale.
