Homes within 1 km whose energy certificates show the floor area growing: extensions, loft and garage conversions. Tap a home on the map or in the list for its full history. Back to SO40 9FN
Not every extension shows here. We only see building work when a new energy certificate is lodged, which happens when a home is sold, let or newly built. A loft or extension added since then won't appear, even with planning permission and building control sign-off, because those records aren't published as open data outside London. Missing work doesn't mean missing paperwork.
44extended homes within 1 km
+29 m² (312 sq ft)typical space added
+97 m² (1,044 sq ft)the biggest: 6, Chiltern Close
9recorded in the last two years
£105ktypical added space at local prices (£3,609 per m²), before building costs