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 CO9 1EN
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 |
|---|---|---|---|---|
| 57, Highfields754 m away | 141 m² | 245 m² | +104 m² +74% | 2014 |
| 6, Highfields754 m away | 84 m² | 161 m² | +77 m² +92% | 2014 |
| 51, Tidings Hill604 m away | 134 m² | 205 m² | +71 m² +53% | 2016 |
| 11, Deacon Lane324 m away | 79 m² | 144 m² | +65 m² +82% | 2019 |
| Boyces House, Mitchell Avenue490 m away | 165 m² | 222 m² | +57 m² +35% | 2015 |
| Pitchards Cottage, Trinity Street706 m away | 90 m² | 136 m² | +46 m² +51% | 2021 |
| 1, Stanstead Place854 m away | 123 m² | 166 m² | +43 m² +35% | 2016 |
| 39, High Street997 m away | 57 m² | 100 m² | +43 m² +75% | 2015 |
| 104, Conies Road486 m away | 64 m² | 105 m² | +41 m² +64% | 2025 |
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.
| 81 m² |
| 122 m² |
| +41 m² +51% |
| 2017 |
| Pluto, Stanstead Road843 m away | 124 m² | 164 m² | +40 m² +32% | 2025 |
|---|
| 47, Oak Road248 m away | 131 m² | 171 m² | +40 m² +31% | 2014 |
|---|
| 1, Abels Road0 m away | 106 m² | 144 m² | +38 m² +36% | 2026 |
|---|
| 46, Kings Road696 m away | 82 m² | 118 m² | +36 m² +44% | 2015 |
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| 49, New Street528 m away | 158 m² | 193 m² | +35 m² +22% | 2023 |
|---|
| 85, Tidings Hill596 m away | 62 m² | 96 m² | +34 m² +55% | 2026 |
|---|
| 41, Stanley Road912 m away | 95 m² | 127 m² | +32 m² +34% | 2023 |
|---|
| 98, White Horse Avenue438 m away | 98 m² | 127 m² | +29 m² +30% | 2026 |
|---|
| 33, Conies Road486 m away | 100 m² | 129 m² | +29 m² +29% | 2026 |
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| 4, Orchard Avenue692 m away | 77 m² | 105 m² | +28 m² +36% | 2021 |
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| 4, South Close633 m away | 86 m² | 114 m² | +28 m² +33% | 2015 |
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| 7, Orchard Avenue692 m away | 78 m² | 103 m² | +25 m² +32% | 2025 |
|---|
| The Cottage, Hall Yard723 m away | 56 m² | 80 m² | +24 m² +43% | 2022 |
|---|
| 42, Trinity Road487 m away | 57 m² | 81 m² | +24 m² +42% | 2014 |
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| 11a, New Street528 m away | 28 m² | 51 m² | +23 m² +82% | 2019 |
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| 65, Stanley Road912 m away | 84 m² | 107 m² | +23 m² +27% | 2013 |
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| 97, Beridge Road922 m away | 128 m² | 149 m² | +21 m² +16% | 2025 |
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| Willowtree, 2, Elm Drive862 m away | 87 m² | 108 m² | +21 m² +24% | 2017 |
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| 71, White Horse Avenue213 m away | 107 m² | 127 m² | +20 m² +19% | 2026 |
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| 41, White Horse Avenue200 m away | 117 m² | 137 m² | +20 m² +17% | 2015 |
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| 83, Tidings Hill596 m away | 82 m² | 101 m² | +19 m² +23% | 2022 |
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| 8, Three Gates Close239 m away | 84 m² | 103 m² | +19 m² +23% | 2020 |
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| 18, Mount Pleasant390 m away | 75 m² | 94 m² | +19 m² +25% | 2016 |
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| 75, Mount Pleasant390 m away | 33 m² | 51 m² | +18 m² +55% | 2018 |
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| 20, Mayda Close295 m away | 61 m² | 78 m² | +17 m² +28% | 2025 |
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| 31, Abels Road0 m away | 78 m² | 95 m² | +17 m² +22% | 2023 |
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| 37, Highfields754 m away | 54 m² | 71 m² | +17 m² +31% | 2020 |
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| 9, Well Field922 m away | 69 m² | 86 m² | +17 m² +25% | 2019 |
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| 12, Highfields754 m away | 84 m² | 100 m² | +16 m² +19% | 2022 |
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| Caxton Cottage, Hall Yard723 m away | 34 m² | 50 m² | +16 m² +47% | 2021 |
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| 4, Brewster Close835 m away | 102 m² | 118 m² | +16 m² +16% | 2020 |
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| 4, Stanstead Place854 m away | 91 m² | 106 m² | +15 m² +16% | 2024 |
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| 57, Stanley Road912 m away | 80 m² | 95 m² | +15 m² +19% | 2024 |
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| 21, Stanley Road912 m away | 66 m² | 81 m² | +15 m² +23% | 2015 |
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