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 RH19 2QP
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 |
|---|---|---|---|---|
| Oakview, London Road765 m away | 156 m² | 347 m² | +191 m² +122% | 2020 |
| 5, Crawley Down Road507 m away | 134 m² | 243 m² | +109 m² +81% | 2026 |
| 5, Birch Tree Gardens580 m away | 155 m² | 263 m² | +108 m² +70% | 2025 |
| 92, Copthorne Road770 m away | 102 m² | 201 m² | +99 m² +97% | 2010 |
| 84, Copthorne Road770 m away | 159 m² | 237 m² | +78 m² +49% | 2013 |
| 65, Sackville Lane631 m away | 77 m² | 154 m² | +77 m² +100% | 2012 |
| 16, Birch Grove495 m away | 84 m² | 161 m² | +77 m² +92% | 2009 |
| Parkmore, Pine Grove391 m away | 144 m² | 219 m² | +75 m² +52% | 2026 |
| Ebor Lodge, London Road254 m away | 144 m² | 216 m² | +72 m² +50% | 2010 |
| 14, Butterfield589 m away | 148 m² | 213 m² | +65 m² +44% | 2012 |
| 19, Warren Close995 m away | 142 m² | 205 m² | +63 m² +44% | 2016 |
| 15, Birch Grove495 m away | 52 m² | 108 m² | +56 m² +108% | 2015 |
| 3, Birch Grove495 m away | 52 m² | 103 m² | +51 m² +98% | 2012 |
| 5, Twitten Lane904 m away | 88 m² | 138 m² | +50 m² +57% | 2020 |
| 4, Twitten Lane904 m away | 58 m² | 108 m² | +50 m² +86% | 2019 |
| 2, Birch Grove495 m away | 52 m² | 102 m² | +50 m² +96% | 2016 |
| 24, Birch Grove495 m away | 52 m² | 102 m² | +50 m² +96% | 2015 |
| 4, King George Avenue733 m away | 88 m² | 133 m² | +45 m² +51% | 2026 |
| 3, Standen Close88 m away | 225 m² | 269 m² | +44 m² +20% | 2025 |
| 25, Sackville Gardens890 m away | 76 m² | 112 m² | +36 m² +47% | 2015 |
| 2, Twitten Lane904 m away | 58 m² | 93 m² | +35 m² +60% | 2019 |
| 17, Birch Grove495 m away | 43 m² | 77 m² | +34 m² +79% | 2009 |
| 15, Sackville Gardens890 m away | 49 m² | 82 m² | +33 m² +67% | 2025 |
| 3, Cherry Way878 m away | 140 m² | 172 m² | +32 m² +23% | 2021 |
| Whitecroft House, The Limes520 m away | 187 m² | 217 m² | +30 m² +16% | 2019 |
| 5, Famet Court, Halsford Lane801 m away | 68 m² | 94 m² | +26 m² +38% | 2023 |
| 10, The Stennings934 m away | 112 m² | 138 m² | +26 m² +23% | 2023 |
| 53, Sackville Lane631 m away | 121 m² | 146 m² | +25 m² +21% | 2016 |
| 2, Longwall190 m away | 113 m² | 137 m² | +24 m² +21% | 2026 |
| 43, King George Avenue729 m away | 67 m² | 87 m² | +20 m² +30% | 2020 |
| 10, Buckhurst Way972 m away | 92 m² | 110 m² | +18 m² +20% | 2025 |
| 14, The Stennings934 m away | 99 m² | 115 m² | +16 m² +16% | 2026 |
| 15, Newick Way922 m away | 92 m² | 108 m² | +16 m² +17% | 2025 |
| Flat 11, Turret Court, London Road978 m away | 57 m² | 72 m² | +15 m² +26% | 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.