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 S9 1AS
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 |
|---|---|---|---|---|
| 37, Wansfell Road993 m away | 51 m² | 117 m² | +66 m² +129% | 2015 |
| 335, Newman Road899 m away | 74 m² | 125 m² | +51 m² +69% | 2024 |
| 15, Vauxhall Close972 m away | 67 m² | 109 m² | +42 m² +63% | 2024 |
| 131, Wincobank Lane827 m away | 76 m² | 114 m² | +38 m² +50% | 2024 |
| 39, Beacon Close854 m away | 56 m² | 92 m² | +36 m² +64% | 2011 |
| 16, Farcroft Grove747 m away | 72 m² | 105 m² | +33 m² +46% | 2025 |
| 46, Hawkshead Road839 m away | 73 m² | 104 m² | +31 m² +42% | 2016 |
| 98, Birdwell Road885 m away | 61 m² | 91 m² | +30 m² +49% | 2026 |
| 18, Holywell Heights561 m away | 99 m² | 128 m² | +29 m² +29% | 2012 |
| 19, Oxted Road346 m away | 69 m² | 96 m² | +27 m² +39% | 2021 |
| 47, Birdwell Road974 m away | 68 m² | 93 m² | +25 m² +37% | 2025 |
| 3, Holywell Heights590 m away | 142 m² | 166 m² | +24 m² +17% | 2009 |
| 7, Holywell Heights590 m away | 142 m² | 166 m² | +24 m² +17% | 2009 |
| 96, Sandstone Drive811 m away | 70 m² | 92 m² | +22 m² +31% | 2015 |
| Apartment 1, Holywell Gardens, 1, Holywell Heights590 m away | 53 m² | 75 m² | +22 m² +42% | 2009 |
| 139, Skelwith Road628 m away | 65 m² | 85 m² | +20 m² +31% | 2015 |
| 81, Limpsfield Road273 m away | 59 m² | 78 m² | +19 m² +32% | 2020 |
| 53, Wansfell Road993 m away | 89 m² | 107 m² | +18 m² +20% | 2017 |
| Apartment 9, Holywell Gardens, 1, Holywell Heights590 m away | 55 m² | 73 m² | +18 m² +33% | 2009 |
| 52, Wansfell Road993 m away | 71 m² | 88 m² | +17 m² +24% | 2023 |
| 32, Wansfell Road993 m away | 77 m² | 94 m² | +17 m² +22% | 2016 |
| 46, Tansley Street955 m away | 59 m² | 75 m² | +16 m² +27% | 2025 |
| 9, Sandstone Close600 m away | 66 m² | 82 m² | +16 m² +24% | 2017 |
| 57, Fort Hill Road669 m away | 64 m² | 79 m² | +15 m² +23% | 2021 |
| 88, Sandstone Road631 m away | 67 m² | 82 m² | +15 m² +22% | 2017 |
| 219, Jenkin Road445 m away | 59 m² | 74 m² | +15 m² +25% | 2014 |
| 78, Sandstone Avenue783 m away | 67 m² | 82 m² | +15 m² +22% | 2014 |
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.