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 HP1 3BZ
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 |
|---|---|---|---|---|
| Honeybrook, St Margarets0 m away | 185 m² | 353 m² | +168 m² +91% | 2020 |
| The Old Barn, Pipers Hill708 m away | 91 m² | 221 m² | +130 m² +143% | 2024 |
| 10, St Margarets0 m away | 130 m² | 212 m² | +82 m² +63% | 2025 |
| 9, St Margarets0 m away | 198 m² | 228 m² | +30 m² +15% | 2022 |
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.