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 NN14 1NF
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 |
|---|---|---|---|---|
| Cransley Grange, Coxs Lane169 m away | 118 m² | 232 m² | +114 m² +97% | 2020 |
| 4, Bakehouse Mews30 m away | 49 m² | 98 m² | +49 m² +100% | 2011 |
| 2, Manor Farm Close211 m away | 267 m² | 310 m² | +43 m² +16% | 2025 |
| 29, Northampton Road580 m away | 83 m² | 126 m² | +43 m² +52% | 2023 |
| 3, The Ludlows314 m away | 140 m² | 181 m² | +41 m² +29% | 2016 |
| 67, Carter Avenue761 m away | 92 m² | 133 m² | +41 m² +45% | 2015 |
| 2, Rose Close385 m away | 104 m² | 144 m² | +40 m² +38% | 2015 |
| 16, Wellingborough Road520 m away | 48 m² | 85 m² | +37 m² +77% | 2015 |
| 14, Wellingborough Road520 m away | 51 m² | 85 m² | +34 m² +67% | 2015 |
| 18, High Street281 m away | 181 m² | 211 m² | +30 m² +17% | 2026 |
| 128, Northampton Road650 m away | 58 m² | 86 m² | +28 m² +48% | 2024 |
| 9, High Street0 m away | 149 m² | 177 m² | +28 m² +19% | 2023 |
| 22, Northampton Road650 m away | 83 m² | 111 m² | +28 m² +34% | 2022 |
| 11, High Street0 m away | 136 m² | 161 m² | +25 m² +18% | 2017 |
| 7, Silver Street122 m away | 81 m² | 106 m² | +25 m² +31% | 2014 |
| 18, Kettering Road320 m away | 70 m² | 94 m² | +24 m² +34% | 2025 |
| 5, Northampton Road580 m away | 78 m² | 102 m² | +24 m² +31% | 2015 |
| 53, Carter Avenue761 m away | 87 m² | 109 m² | +22 m² +25% | 2023 |
| 3, Donaldson Avenue758 m away | 81 m² | 99 m² | +18 m² +22% | 2015 |
| 29, High Street0 m away | 68 m² | 85 m² | +17 m² +25% | 2022 |
| 51, Wellingborough Road520 m away | 81 m² | 98 m² | +17 m² +21% | 2022 |
| 21, Lime Close430 m away | 65 m² | 82 m² | +17 m² +26% | 2019 |
| 15, High Street0 m away | 76 m² | 92 m² | +16 m² +21% | 2016 |
| 5, Church View222 m away | 88 m² | 103 m² | +15 m² +17% | 2019 |
| 52, Wellingborough Road520 m away | 83 m² | 98 m² | +15 m² +18% | 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.