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 7TT
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 Road826 m away | 203 m² | 461 m² | +258 m² +127% | 2024 |
| 43, Laburnum Grove715 m away | 375 m² | 618 m² | +243 m² +65% | 2026 |
| 37, Sunderland Road626 m away | 204 m² | 431 m² | +227 m² +111% | 2020 |
| 6, Whitburn Road570 m away | 229 m² | 418 m² | +189 m² +83% | 2018 |
| 21, Sunderland Road845 m away | 130 m² | 295 m² | +165 m² +127% | 2017 |
| 12, Mayfield Drive569 m away | 118 m² | 271 m² | +153 m² +130% | 2025 |
| 4, Sunderland Road791 m away | 199 m² | 351 m² | +152 m² +76% | 2024 |
| 36, Whitburn Road656 m away | 264 m² | 404 m² | +140 m² +53% | 2014 |
| 5, The Square971 m away | 243 m² | 368 m² | +125 m² +51% | 2016 |
| 4, Boldon Lane976 m away | 558 m² | 678 m² | +120 m² +22% | 2025 |
| 4, The Crescent930 m away | 102 m² | 212 m² | +110 m² +108% | 2024 |
| 6a, West Park Road740 m away | 76 m² | 169 m² | +93 m² +122% | 2013 |
| 5a, Laburnum Grove715 m away | 297 m² | 380 m² | +83 m² +28% | 2023 |
| 6, Charlton Grove517 m away | 95 m² | 174 m² | +79 m² +83% | 2018 |
| 8, Underhill Road826 m away | 144 m² | 212 m² | +68 m² +47% | 2024 |
| 19, The Square971 m away | 237 m² | 303 m² | +66 m² +28% | 2018 |
| 67, East Boldon Road959 m away | 56 m² | 121 m² | +65 m² +116% | 2016 |
| 88, East Boldon Road959 m away | 59 m² | 123 m² | +64 m² +108% | 2018 |
| 11, Old Course Road249 m away | 92 m² | 152 m² | +60 m² +65% | 2019 |
| 52, Whitburn Road656 m away | 94 m² | 148 m² | +54 m² +57% | 2018 |
| 10, Meadowfield Drive635 m away | 189 m² | 242 m² | +53 m² +28% | 2014 |
| 48, Woodlands Road616 m away | 52 m² | 104 m² | +52 m² +100% | 2020 |
| Doxfield, Newcastle Road922 m away | 155 m² | 205 m² | +50 m² +32% | 2021 |
| 12, Sunderland Road791 m away | 185 m² | 234 m² | +49 m² +26% | 2016 |
| 21, The Crescent930 m away | 104 m² | 148 m² | +44 m² +42% | 2023 |
| 25, Moor Lane0 m away | 129 m² | 168 m² | +39 m² +30% | 2024 |
| 36, Underhill Road826 m away | 145 m² | 180 m² | +35 m² +24% | 2020 |
| 9, Mayfield Drive569 m away | 154 m² | 188 m² | +34 m² +22% | 2015 |
| 33, Woodlands Road353 m away | 95 m² | 127 m² | +32 m² +34% | 2017 |
| 28, Bywell Road798 m away | 120 m² | 151 m² | +31 m² +26% | 2021 |
| 50, Bywell Road798 m away | 139 m² | 169 m² | +30 m² +22% | 2026 |
| 28, Underhill Road826 m away | 154 m² | 183 m² | +29 m² +19% | 2015 |
| 11, Garden Lane946 m away | 113 m² | 141 m² | +28 m² +25% | 2025 |
| 6, Woodlands Drive166 m away | 95 m² | 121 m² | +26 m² +27% | 2020 |
| 12, Foxton Court933 m away | 57 m² | 81 m² | +24 m² +42% | 2024 |
| 20, Foxton Court933 m away | 72 m² | 96 m² | +24 m² +33% | 2020 |
| 16, Whitburn Road445 m away | 153 m² | 176 m² | +23 m² +15% | 2024 |
| 61, Whitburn Road656 m away | 100 m² | 119 m² | +19 m² +19% | 2024 |
| 87, Woodlands Road616 m away | 96 m² | 115 m² | +19 m² +20% | 2015 |
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.