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 PO9 1RY
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 |
|---|---|---|---|---|
| 4, Mill Lane326 m away | 165 m² | 286 m² | +121 m² +73% | 2016 |
| 5, Harbourside279 m away | 204 m² | 275 m² | +71 m² +35% | 2024 |
| 8, Brookmead Way683 m away | 114 m² | 178 m² | +64 m² +56% | 2025 |
| 24, Hamilton Close813 m away | 120 m² | 173 m² | +53 m² +44% | 2025 |
| 6, Langbrook Close801 m away | 125 m² | 177 m² | +52 m² +42% | 2026 |
| 1, Woodbury Avenue814 m away | 190 m² | 239 m² | +49 m² +26% | 2016 |
| Cherrytrees, 1, Southbrook Close691 m away | 121 m² | 161 m² | +40 m² +33% | 2014 |
| 5a, Mill Lane326 m away | 214 m² | 251 m² | +37 m² +17% | 2018 |
| 16, Hamilton Close813 m away | 105 m² | 138 m² | +33 m² +31% | 2019 |
| 9, Langstone High Street0 m away | 117 m² | 146 m² | +29 m² +25% | 2021 |
| 61, Southbrook Road680 m away | 106 m² | 133 m² | +27 m² +25% | 2014 |
| 3, Southbrook Road680 m away | 129 m² | 154 m² | +25 m² +19% | 2011 |
| 36, Longmead Gardens528 m away | 94 m² | 116 m² | +22 m² +23% | 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.