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 SR6 7XB
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 |
|---|---|---|---|---|
| 30, Underhill Road889 m away | 203 m² | 461 m² | +258 m² +127% | 2024 |
| 43, Laburnum Grove630 m away | 375 m² | 618 m² | +243 m² +65% | 2026 |
| 37, Sunderland Road726 m away | 204 m² | 431 m² | +227 m² +111% | 2020 |
| 6, Whitburn Road687 m away | 229 m² | 418 m² | +189 m² +83% | 2018 |
| 21, Sunderland Road416 m away | 130 m² | 295 m² | +165 m² +127% | 2017 |
| 12, Mayfield Drive706 m away | 118 m² | 271 m² | +153 m² +130% | 2025 |
| 4, Sunderland Road465 m away | 199 m² | 351 m² | +152 m² +76% | 2024 |
| 36, Whitburn Road965 m away | 264 m² | 404 m² | +140 m² +53% | 2014 |
| 4, Boldon Lane458 m away | 558 m² | 678 m² | +120 m² +22% | 2025 |
| 6a, West Park Road744 m away | 76 m² | 169 m² | +93 m² +122% | 2013 |
| 2, Sunniside Terrace134 m away | 145 m² | 236 m² | +91 m² +63% | 2010 |
| 5a, Laburnum Grove630 m away | 297 m² | 380 m² | +83 m² +28% | 2023 |
| 20, Ashleigh Gardens427 m away | 78 m² | 154 m² | +76 m² +97% | 2026 |
| 8, Underhill Road889 m away | 144 m² | 212 m² | +68 m² +47% | 2024 |
| 52, Whitburn Road965 m away | 94 m² | 148 m² | +54 m² +57% | 2018 |
| 10, Meadowfield Drive622 m away | 189 m² | 242 m² | +53 m² +28% | 2014 |
| 12, Sunderland Road465 m away | 185 m² | 234 m² | +49 m² +26% | 2016 |
| 16, Sunniside Terrace134 m away | 114 m² | 153 m² | +39 m² +34% | 2026 |
| 24, Elmsleigh Gardens234 m away | 108 m² | 144 m² | +36 m² +33% | 2023 |
| 36, Underhill Road889 m away | 145 m² | 180 m² | +35 m² +24% | 2020 |
| 9, Mayfield Drive706 m away | 154 m² | 188 m² | +34 m² +22% | 2015 |
| 10, Elmsleigh Gardens234 m away | 108 m² | 137 m² | +29 m² +27% | 2017 |
| 28, Underhill Road889 m away | 154 m² | 183 m² | +29 m² +19% | 2015 |
| 7, Ashleigh Gardens252 m away | 132 m² | 159 m² | +27 m² +20% | 2024 |
| 12, Sunnilaws947 m away | 121 m² | 147 m² | +26 m² +21% | 2016 |
| 12, Foxton Court325 m away | 57 m² | 81 m² | +24 m² +42% | 2024 |
| 20, Foxton Court325 m away | 72 m² | 96 m² | +24 m² +33% | 2020 |
| 16, Whitburn Road863 m away | 153 m² | 176 m² | +23 m² +15% | 2024 |
| 35, Malvern Court, The Close815 m away | 34 m² | 55 m² | +21 m² +62% | 2022 |
| 61, Whitburn Road965 m away | 100 m² | 119 m² | +19 m² +19% | 2024 |
| 50, Elmsleigh Gardens390 m away | 105 m² | 124 m² | +19 m² +18% | 2019 |
| 63, Cleadon Meadows406 m away | 90 m² | 105 m² | +15 m² +17% | 2026 |
| 2, Ashleigh Gardens252 m away | 96 m² | 111 m² | +15 m² +16% | 2022 |
| 15, Malvern Court, The Close815 m away | 40 m² | 55 m² | +15 m² +38% | 2022 |
| 42, North Drive903 m away | 81 m² | 96 m² | +15 m² +19% | 2013 |
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.