Housing stock in Hounslow
1930s semis, Georgian and Victorian villas in Chiswick, riverside terraces in Isleworth.
Planning in Hounslow
Chiswick's conservation areas (Bedford Park, Grove Park) demand higher-spec detailing. Elsewhere planning is pragmatic.
Party Wall Act — what to expect
Chiswick terraces = two party walls; Hounslow semis = one.
Read the Party Wall etc. Act 1996 guide for full detail on notices, timelines and surveyor costs.
Typical costs in Hounslow
For a mid-spec 25 m² rear dormer loft conversion, all-in (structural design, building control, party wall, VAT and 12% contingency), expect roughly £95,000 to £155,000. 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.
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