Housing stock in Bexley
1930s semis and detached homes, some post-war.
Rear dormerHip-to-gableMansard loft
Planning in Bexley
One of London's easiest boroughs for PD extensions.
Party Wall Act — what to expect
Semi-detached — one party wall notice typical.
Read the Party Wall etc. Act 1996 guide for full detail on notices, timelines and surveyor costs.
Typical costs in Bexley
For a mid-spec 25 m² rear dormer loft conversion, all-in (structural design, building control, party wall, VAT and 12% contingency), expect roughly £85,000 to £135,000. A mansard, a hip-to-gable with high-spec en-suite joinery or a conservation-area application will push above the top of this range; a self-built rooflight conversion comes in well under the bottom.
Cost tier
Outer London · -5% vs London average
Our calculator applies a 0.95× multiplier automatically for Bexley projects. Get an itemised breakdown in 60 seconds.
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