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 DL15 9EF
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 |
|---|---|---|---|---|
| 16, Brookside Avenue930 m away | 101 m² | 173 m² | +72 m² +71% | 2020 |
| 77, Beechburn Park845 m away | 83 m² | 144 m² | +61 m² +73% | 2022 |
| 4, New Road493 m away | 190 m² | 250 m² | +60 m² +32% | 2022 |
| 3, Coppice Mount769 m away | 114 m² | 173 m² | +59 m² +52% | 2020 |
| 28, Beechburn Park860 m away | 117 m² | 175 m² | +58 m² +50% | 2021 |
| 6, Gardener Court822 m away | 67 m² | 113 m² | +46 m² +69% | 2025 |
| 13, Larchfield Gardens876 m away | 91 m² | 132 m² | +41 m² +45% | 2021 |
| 37, Gladstone Street0 m away | 140 m² | 180 m² | +40 m² +29% | 2015 |
| 7, Greenfield Cottages258 m away |
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.
| 42 m² |
| 82 m² |
| +40 m² +95% |
| 2015 |
| 39, West Road544 m away | 166 m² | 205 m² | +39 m² +23% | 2024 |
|---|
| 5, Church Hill251 m away | 53 m² | 92 m² | +39 m² +74% | 2023 |
|---|
| 17, Church Hill251 m away | 172 m² | 210 m² | +38 m² +22% | 2014 |
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| 180, High Hope Street327 m away | 81 m² | 117 m² | +36 m² +44% | 2024 |
|---|
| 1, Brookside Avenue930 m away | 84 m² | 120 m² | +36 m² +43% | 2015 |
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| 10, Briar Gardens841 m away | 80 m² | 112 m² | +32 m² +40% | 2015 |
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| 33, Wilson Street107 m away | 91 m² | 122 m² | +31 m² +34% | 2013 |
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| 12, Peases Way793 m away | 86 m² | 115 m² | +29 m² +34% | 2020 |
|---|
| 99, High Hope Street550 m away | 90 m² | 119 m² | +29 m² +32% | 2009 |
|---|
| 36, Gladstone Street0 m away | 130 m² | 158 m² | +28 m² +22% | 2015 |
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| 18, Swingfield Close608 m away | 85 m² | 110 m² | +25 m² +29% | 2025 |
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| 39, Laurel Gardens730 m away | 96 m² | 121 m² | +25 m² +26% | 2023 |
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| 60, High Hope Street505 m away | 128 m² | 153 m² | +25 m² +20% | 2014 |
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| 10, Pinetree Gardens787 m away | 73 m² | 97 m² | +24 m² +33% | 2023 |
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| 3, Mcmillan Drive776 m away | 120 m² | 143 m² | +23 m² +19% | 2026 |
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| 16a, Moravian Street280 m away | 40 m² | 63 m² | +23 m² +57% | 2022 |
|---|
| 3, Victoria Avenue512 m away | 105 m² | 127 m² | +22 m² +21% | 2025 |
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| 27, Grey Street30 m away | 54 m² | 76 m² | +22 m² +41% | 2023 |
|---|
| 30, Beechburn Park860 m away | 115 m² | 136 m² | +21 m² +18% | 2014 |
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| 24, Tennyson Terrace758 m away | 100 m² | 121 m² | +21 m² +21% | 2013 |
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| 60, Beechburn Park845 m away | 62 m² | 82 m² | +20 m² +32% | 2024 |
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| 9, Ullswater Crescent809 m away | 44 m² | 64 m² | +20 m² +45% | 2012 |
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| 24, Derwent Avenue822 m away | 101 m² | 120 m² | +19 m² +19% | 2016 |
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| 19, North Terrace116 m away | 100 m² | 119 m² | +19 m² +19% | 2014 |
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| 89, High Hope Street550 m away | 103 m² | 122 m² | +19 m² +18% | 2014 |
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| 103, Beechburn Park845 m away | 107 m² | 126 m² | +19 m² +18% | 2014 |
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| 6, Tennyson Terrace758 m away | 84 m² | 103 m² | +19 m² +23% | 2013 |
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| 40, Albert Street53 m away | 77 m² | 95 m² | +18 m² +23% | 2025 |
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| 6, Hartside527 m away | 74 m² | 92 m² | +18 m² +24% | 2025 |
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| 15, North Terrace116 m away | 108 m² | 126 m² | +18 m² +17% | 2023 |
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| 18, Moravian Street280 m away | 30 m² | 47 m² | +17 m² +57% | 2017 |
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| 2, Steward Drive747 m away | 102 m² | 119 m² | +17 m² +17% | 2014 |
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| 26, Sandringham Road406 m away | 87 m² | 103 m² | +16 m² +18% | 2024 |
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| 5, King Albert Place395 m away | 85 m² | 101 m² | +16 m² +19% | 2023 |
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| 26, High Hope Street505 m away | 45 m² | 61 m² | +16 m² +36% | 2022 |
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| 3, Beechburn Park860 m away | 91 m² | 107 m² | +16 m² +18% | 2021 |
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| 37, Scafell Gardens937 m away | 63 m² | 79 m² | +16 m² +25% | 2015 |
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| 22, Beechburn Park860 m away | 72 m² | 87 m² | +15 m² +21% | 2017 |
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| 21, Royal Grove239 m away | 76 m² | 91 m² | +15 m² +20% | 2014 |
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| 19, George Terrace376 m away | 79 m² | 94 m² | +15 m² +19% | 2014 |
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