Finding extended homes…
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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 DH9 0SP
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.
| Home | Before | After | Added | Recorded |
|---|---|---|---|---|
| 40, John Street203 m away | 72 m² | 105 m² | +33 m² +46% | 2015 |
| 5, Roseberry Street240 m away | 75 m² | 100 m² | +25 m² +33% | 2024 |
| 77, John Street218 m away | 94 m² | 118 m² | +24 m² +26% | 2019 |
| 36, Gladstone Street180 m away | 74 m² | 92 m² | +18 m² +24% | 2021 |
| 9, Abbots Walk890 m away | 106 m² | 124 m² | +18 m² +17% | 2020 |
| 4, Station Road857 m away | 85 m² | 102 m² | +17 m² +20% | 2019 |
| 28, Station Road857 m away | 94 m² | 109 m² | +15 m² +16% | 2020 |
| 12, Kinross Drive998 m away | 35 m² | 50 m² | +15 m² +43% | 2014 |
| 6, Causey View923 m away | 71 m² | 86 m² | +15 m² +21% | 2009 |
From energy performance certificates (MHCLG): a later certificate shows at least 15 m² and 15% more floor area than an earlier one (and no more than 2.5 times, to leave out typing errors). Some changes come from a more careful measurement rather than building work. Addresses: HM Land Registry. Contains HM Land Registry data © Crown copyright and database right 2026, OGL v3.0.