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 CB23 8DE
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 |
|---|---|---|---|---|
| 18, Pettitts Lane706 m away | 77 m² | 186 m² | +109 m² +142% | 2024 |
| 10, Searles Meadow994 m away | 95 m² | 194 m² | +99 m² +104% | 2025 |
| 21, Park Street820 m away | 83 m² | 182 m² | +99 m² +119% | 2019 |
| Studio One, Park Lane665 m away | 104 m² | 202 m² | +98 m² +94% | 2019 |
| 70, Watermead915 m away | 74 m² | 154 m² | +80 m² +108% | 2016 |
| 32, Hillcrest843 m away | 108 m² | 170 m² | +62 m² +57% | 2016 |
| 32, Pettitts Lane706 m away | 97 m² | 140 m² | +43 m² +44% | 2024 |
| 48, Hillcrest843 m away | 55 m² | 96 m² | +41 m² +75% | 2015 |
| 59, Watermead915 m away | 42 m² | 83 m² | +41 m² +98% | 2015 |
| 48, Watermead959 m away | 54 m² | 94 m² | +40 m² +74% | 2026 |
| 29, Park Street820 m away | 75 m² | 115 m² | +40 m² +53% | 2018 |
| 52, Watermead959 m away | 76 m² | 116 m² | +40 m² +53% | 2015 |
| Honey Hill Cottage, Pettitts Lane706 m away | 210 m² | 245 m² | +35 m² +17% | 2024 |
| 12, Hillcrest843 m away | 60 m² | 94 m² | +34 m² +57% | 2019 |
| 69, Watermead915 m away | 92 m² | 124 m² | +32 m² +35% | 2016 |
| 91, Watermead915 m away | 77 m² | 106 m² | +29 m² +38% | 2016 |
| 35, The Brambles875 m away | 75 m² | 102 m² | +27 m² +36% | 2017 |
| 4, Oak Crescent938 m away | 86 m² | 111 m² | +25 m² +29% | 2014 |
| 96, Oakington Road0 m away | 67 m² | 88 m² | +21 m² +31% | 2026 |
| 22, Pettitts Lane706 m away | 108 m² | 128 m² | +20 m² +19% | 2022 |
| 28, Chestnut Rise744 m away | 60 m² | 76 m² | +16 m² +27% | 2024 |
| 30, The Brambles935 m away | 68 m² | 83 m² | +15 m² +22% | 2021 |
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.