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 HP4 2RS
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 |
|---|---|---|---|---|
| 8, Hempstead Lane626 m away | 204 m² | 481 m² | +277 m² +136% | 2023 |
| Aldebaran Cottage, 21, Hempstead Lane895 m away | 186 m² | 364 m² | +178 m² +96% | 2026 |
| Hawbush, 76, Hempstead Lane828 m away | 155 m² | 318 m² | +163 m² +105% | 2019 |
| 68, Hempstead Lane828 m away | 169 m² | 308 m² | +139 m² +82% | 2016 |
| The Red Cottage, Little Heath Lane533 m away | 169 m² | 291 m² | +122 m² +72% | 2022 |
| 3, The Green734 m away | 82 m² | 204 m² | +122 m² +149% | 2015 |
| 66, Hempstead Lane828 m away | 112 m² | 233 m² | +121 m² +108% | 2022 |
| Hazel Cottage, Little Heath Lane533 m away | 140 m² | 232 m² | +92 m² +66% | 2017 |
| 4, Kiln Close808 m away | 86 m² | 163 m² | +77 m² +90% | 2025 |
| 20, Rambling Way971 m away | 127 m² | 186 m² | +59 m² +46% | 2021 |
| 42, Hempstead Lane828 m away | 97 m² | 152 m² | +55 m² +57% | 2016 |
| 56, Hempstead Lane828 m away | 100 m² | 152 m² | +52 m² +52% | 2020 |
| 21, Rambling Way971 m away | 140 m² | 192 m² | +52 m² +37% | 2019 |
| 26, The Front904 m away | 78 m² | 122 m² | +44 m² +56% | 2022 |
| 31, Rambling Way971 m away | 202 m² | 244 m² | +42 m² +21% | 2022 |
| Acorns, Rambling Way906 m away | 116 m² | 155 m² | +39 m² +34% | 2025 |
| 24, The Laurels849 m away | 156 m² | 195 m² | +39 m² +25% | 2020 |
| Heatherbank, 10a, Vicarage Road900 m away | 164 m² | 194 m² | +30 m² +18% | 2017 |
| Heathside, Little Heath Lane533 m away | 192 m² | 222 m² | +30 m² +16% | 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.