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 HP23 4FA
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 |
|---|---|---|---|---|
| The Bungalow, Tring Road324 m away | 72 m² | 163 m² | +91 m² +126% | 2013 |
| Gubblecote Farm Cottage347 m away | 186 m² | 228 m² | +42 m² +23% | 2016 |
| 22, Tring Road809 m away | 57 m² | 82 m² | +25 m² +44% | 2020 |
| 3, Cheddington Lane945 m away | 100 m² | 120 m² | +20 m² +20% | 2017 |
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.