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 RH4 3NJ
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 |
|---|---|---|---|---|
| 20, Milton Avenue463 m away | 142 m² | 328 m² | +186 m² +131% | 2018 |
| Brooklands, Guildford Road275 m away | 140 m² | 322 m² | +182 m² +130% | 2021 |
| Robin Hill, Stones Lane131 m away | 182 m² | 355 m² | +173 m² +95% | 2017 |
| Milton Farm, Guildford Road510 m away | 90 m² | 213 m² | +123 m² +137% | 2010 |
| Magnolia Cottage, The Hildens428 m away | 149 m² | 253 m² | +104 m² +70% | 2025 |
| 21, Broomfield Park250 m away | 130 m² | 216 m² | +86 m² +66% | 2019 |
| 15, The Paddock204 m away | 84 m² | 169 m² | +85 m² +101% | 2011 |
| 2, Broomfield Park250 m away | 200 m² | 261 m² | +61 m² +31% | 2024 |
| Mill, Westcott Street484 m away | 287 m² | 346 m² | +59 m² +21% | 2016 |
| 8, Meadow Close424 m away | 105 m² | 162 m² | +57 m² +54% | 2020 |
| 19, Ashley Road304 m away | 70 m² | 121 m² | +51 m² +73% | 2018 |
| Buckland House, Westcott Street211 m away | 139 m² | 184 m² | +45 m² +32% | 2023 |
| Tanglewood, Westcott Street211 m away | 198 m² | 239 m² | +41 m² +21% | 2022 |
| Brockway, The Hildens428 m away | 159 m² | 192 m² | +33 m² +21% | 2019 |
| Brook House, Westcott Street456 m away | 130 m² | 163 m² | +33 m² +25% | 2019 |
| 2, Westcott Mews139 m away | 114 m² | 143 m² | +29 m² +25% | 2020 |
| The Twitten, Guildford Road225 m away | 56 m² | 84 m² | +28 m² +50% | 2023 |
| 4, Furlong Road119 m away | 85 m² | 112 m² | +27 m² +32% | 2019 |
| Brooklands End, Guildford Road275 m away | 134 m² | 160 m² | +26 m² +19% | 2023 |
| 66, St Johns Road278 m away | 64 m² | 89 m² | +25 m² +39% | 2020 |
| 56, Watson Road334 m away | 72 m² | 94 m² | +22 m² +31% | 2021 |
| 2, Guildford Road83 m away | 86 m² | 102 m² | +16 m² +19% | 2026 |
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.