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 2NZ
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 |
|---|---|---|---|---|
| Hedgecourt House, Copthorne Road794 m away | 346 m² | 520 m² | +174 m² +50% | 2026 |
| 5, Crawley Down Road400 m away | 134 m² | 243 m² | +109 m² +81% | 2026 |
| 92, Copthorne Road190 m away | 102 m² | 201 m² | +99 m² +97% | 2010 |
| 84, Copthorne Road190 m away | 159 m² | 237 m² | +78 m² +49% | 2013 |
| 16, Birch Grove503 m away | 84 m² | 161 m² | +77 m² +92% | 2009 |
| Ebor Lodge, London Road850 m away | 144 m² | 216 m² | +72 m² +50% | 2010 |
| 19, Warren Close168 m away | 142 m² | 205 m² | +63 m² +44% | 2016 |
| 10, Hedgecourt Place471 m away | 142 m² | 199 m² | +57 m² +40% | 2021 |
| 15, Birch Grove503 m away | 52 m² | 108 m² | +56 m² +108% | 2015 |
| 3, Birch Grove503 m away | 52 m² | 103 m² | +51 m² +98% | 2012 |
| 5, Twitten Lane0 m away | 88 m² | 138 m² | +50 m² +57% | 2020 |
| 4, Twitten Lane0 m away | 58 m² | 108 m² | +50 m² +86% | 2019 |
| 2, Birch Grove503 m away | 52 m² | 102 m² | +50 m² +96% | 2016 |
| 24, Birch Grove503 m away | 52 m² | 102 m² | +50 m² +96% | 2015 |
| 134, Copthorne Road568 m away | 63 m² | 111 m² | +48 m² +76% | 2022 |
| 3, Standen Close824 m away | 225 m² | 269 m² | +44 m² +20% | 2025 |
| Pixie Wood, Rowplatt Lane202 m away | 82 m² | 125 m² | +43 m² +52% | 2026 |
| 26, Rowplatt Lane202 m away | 62 m² | 105 m² | +43 m² +69% | 2020 |
| Lyric Cottage, Rowplatt Lane202 m away | 174 m² | 212 m² | +38 m² +22% | 2019 |
| 2, Twitten Lane0 m away | 58 m² | 93 m² | +35 m² +60% | 2019 |
| 17, Birch Grove503 m away | 43 m² | 77 m² | +34 m² +79% | 2009 |
| 3, Cherry Way63 m away | 140 m² | 172 m² | +32 m² +23% | 2021 |
| 45, Rowplatt Lane143 m away | 60 m² | 91 m² | +31 m² +52% | 2017 |
| Whitecroft House, The Limes927 m away | 187 m² | 217 m² | +30 m² +16% | 2019 |
| 4, Rowplatt Close176 m away | 93 m² | 118 m² | +25 m² +27% | 2025 |
| 2, Longwall735 m away | 113 m² | 137 m² | +24 m² +21% | 2026 |
| 44, Crawley Down Road457 m away | 88 m² | 110 m² | +22 m² +25% | 2024 |
| Firswood, Rowplatt Lane143 m away | 94 m² | 113 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.