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 DL14 6AG
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 |
|---|---|---|---|---|
| 4, Woodhouse Lane703 m away | 101 m² | 219 m² | +118 m² +117% | 2020 |
| 215a, Newgate Street464 m away | 122 m² | 208 m² | +86 m² +70% | 2021 |
| 91, St Andrews Road834 m away | 131 m² | 205 m² | +74 m² +56% | 2021 |
| 30, Northumberland Avenue315 m away | 145 m² | 216 m² | +71 m² +49% | 2025 |
| 12, Oaklea Terrace159 m away | 89 m² | 160 m² | +71 m² +80% | 2015 |
| 9, South Church Road697 m away | 82 m² | 145 m² | +63 m² +77% | 2015 |
| 53, Cockton Hill Road147 m away | 69 m² | 131 m² | +62 m² +90% | 2025 |
| 2, Kensington South357 m away | 155 m² | 215 m² | +60 m² +39% | 2021 |
| 13, Escomb Road224 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.
| 120 m² |
| 179 m² |
| +59 m² +49% |
| 2020 |
| 13, Brewer Street155 m away | 77 m² | 135 m² | +58 m² +75% | 2014 |
|---|
| 17, Hutchinson Street582 m away | 63 m² | 121 m² | +58 m² +92% | 2014 |
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| 76, St Andrews Road834 m away | 106 m² | 160 m² | +54 m² +51% | 2026 |
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| 10, Northumberland Avenue163 m away | 118 m² | 171 m² | +53 m² +45% | 2016 |
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| 5, St Peters Close614 m away | 146 m² | 198 m² | +52 m² +36% | 2022 |
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| 74, Seymour Street452 m away | 93 m² | 145 m² | +52 m² +56% | 2014 |
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| 52, Dene Hall Drive880 m away | 154 m² | 205 m² | +51 m² +33% | 2025 |
|---|
| 10, Surrey Place802 m away | 76 m² | 125 m² | +49 m² +64% | 2021 |
|---|
| 16, Edward Street920 m away | 71 m² | 117 m² | +46 m² +65% | 2015 |
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| 7, Escomb Road224 m away | 141 m² | 186 m² | +45 m² +32% | 2026 |
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| 33, Beaumont Street345 m away | 117 m² | 162 m² | +45 m² +38% | 2013 |
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| 18, Aldhun Close974 m away | 78 m² | 120 m² | +42 m² +54% | 2023 |
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| 29, Watling Road729 m away | 89 m² | 130 m² | +41 m² +46% | 2026 |
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| 24, Ravensworth Avenue238 m away | 67 m² | 106 m² | +39 m² +58% | 2023 |
|---|
| 10, Westfield Road112 m away | 57 m² | 96 m² | +39 m² +68% | 2015 |
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| 84, Cockton Hill Road254 m away | 145 m² | 183 m² | +38 m² +26% | 2020 |
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| 15, Eastlea Avenue408 m away | 75 m² | 112 m² | +37 m² +49% | 2026 |
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| 19, Ravensworth Avenue238 m away | 90 m² | 127 m² | +37 m² +41% | 2023 |
|---|
| 14, St Cuthberts Way544 m away | 51 m² | 88 m² | +37 m² +73% | 2022 |
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| 27, Surrey Place802 m away | 75 m² | 112 m² | +37 m² +49% | 2021 |
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| 3, Surtees Street835 m away | 79 m² | 115 m² | +36 m² +46% | 2019 |
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| 42, Westfield Road112 m away | 113 m² | 148 m² | +35 m² +31% | 2026 |
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| 36, St Andrews Road834 m away | 63 m² | 98 m² | +35 m² +56% | 2017 |
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| 30, Short Street479 m away | 75 m² | 110 m² | +35 m² +47% | 2010 |
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| 4, Arthur Terrace382 m away | 84 m² | 118 m² | +34 m² +40% | 2015 |
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| 17, Hillbeck Street965 m away | 32 m² | 65 m² | +33 m² +103% | 2024 |
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| 39, St Andrews Road623 m away | 85 m² | 116 m² | +31 m² +36% | 2024 |
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| 25, Westfield Road112 m away | 64 m² | 94 m² | +30 m² +47% | 2015 |
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| 1, Warwick Road467 m away | 90 m² | 120 m² | +30 m² +33% | 2015 |
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| 25, South Church Road763 m away | 121 m² | 151 m² | +30 m² +25% | 2014 |
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| 10, Jenkins Drive976 m away | 71 m² | 100 m² | +29 m² +41% | 2024 |
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| 36, Salisbury Place697 m away | 86 m² | 115 m² | +29 m² +34% | 2021 |
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| 3, Leopold Place326 m away | 63 m² | 92 m² | +29 m² +46% | 2017 |
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| 5, Durham Street751 m away | 53 m² | 81 m² | +28 m² +53% | 2026 |
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| 15, Arthur Terrace382 m away | 76 m² | 104 m² | +28 m² +37% | 2023 |
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| 39, Seymour Street333 m away | 88 m² | 116 m² | +28 m² +32% | 2019 |
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| 7, South View395 m away | 121 m² | 149 m² | +28 m² +23% | 2016 |
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| 18, Blackett Street407 m away | 95 m² | 123 m² | +28 m² +29% | 2015 |
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| Gables Hall, Edge Hill881 m away | 170 m² | 197 m² | +27 m² +16% | 2022 |
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| 4, Morpeth Grove613 m away | 112 m² | 139 m² | +27 m² +24% | 2014 |
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| 1, Queens Road757 m away | 96 m² | 123 m² | +27 m² +28% | 2013 |
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| 17a, Princes Street813 m away | 31 m² | 57 m² | +26 m² +84% | 2026 |
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| 9, Belvoir Grove573 m away | 82 m² | 108 m² | +26 m² +32% | 2023 |
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| 26, Oxford Terrace674 m away | 63 m² | 88 m² | +25 m² +40% | 2025 |
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| 29, Arthur Terrace382 m away | 64 m² | 88 m² | +24 m² +38% | 2026 |
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| 16, Gibbon Street882 m away | 62 m² | 86 m² | +24 m² +39% | 2015 |
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| 46, Lambton Drive641 m away | 83 m² | 107 m² | +24 m² +29% | 2014 |
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| 44, Woodhouse Lane703 m away | 64 m² | 88 m² | +24 m² +38% | 2014 |
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| 80, Escomb Road447 m away | 95 m² | 118 m² | +23 m² +24% | 2025 |
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| 16, Waldron Street870 m away | 87 m² | 110 m² | +23 m² +26% | 2019 |
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| 31, Westfield Road112 m away | 138 m² | 161 m² | +23 m² +17% | 2015 |
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| 9, Barnard Avenue0 m away | 77 m² | 99 m² | +22 m² +29% | 2024 |
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| 54, Lambton Drive641 m away | 81 m² | 103 m² | +22 m² +27% | 2022 |
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| 10, Prescott Way249 m away | 110 m² | 132 m² | +22 m² +20% | 2020 |
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| 12, South View395 m away | 140 m² | 162 m² | +22 m² +16% | 2019 |
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| 61, Lambton Drive641 m away | 98 m² | 120 m² | +22 m² +22% | 2014 |
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| 4, Cleveland Avenue115 m away | 79 m² | 100 m² | +21 m² +27% | 2025 |
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| 11, Arthur Terrace382 m away | 81 m² | 102 m² | +21 m² +26% | 2023 |
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| 87, Etherley Lane525 m away | 76 m² | 97 m² | +21 m² +28% | 2023 |
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| 11, Richmond Avenue773 m away | 74 m² | 95 m² | +21 m² +28% | 2013 |
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| 6, Vart Road712 m away | 99 m² | 119 m² | +20 m² +20% | 2024 |
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| 29, Westfield Road112 m away | 49 m² | 69 m² | +20 m² +41% | 2022 |
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| 2, Laburnum Road391 m away | 79 m² | 99 m² | +20 m² +25% | 2022 |
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| 14, Leopold Place326 m away | 96 m² | 116 m² | +20 m² +21% | 2018 |
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| 15, Elm Terrace290 m away | 91 m² | 111 m² | +20 m² +22% | 2017 |
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| 73, St Andrews Road623 m away | 88 m² | 108 m² | +20 m² +23% | 2016 |
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| 24, Gibbon Street882 m away | 68 m² | 88 m² | +20 m² +29% | 2015 |
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| 5, Walmer Avenue332 m away | 103 m² | 123 m² | +20 m² +19% | 2014 |
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| 1, Albert Hill327 m away | 61 m² | 81 m² | +20 m² +33% | 2009 |
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| 8, Ashcroft Gardens270 m away | 96 m² | 115 m² | +19 m² +20% | 2026 |
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| 1, Cornwall Place692 m away | 66 m² | 85 m² | +19 m² +29% | 2026 |
|---|
| 14, Worcester Place821 m away | 86 m² | 105 m² | +19 m² +22% | 2021 |
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| 28, Princes Street813 m away | 72 m² | 91 m² | +19 m² +26% | 2018 |
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| 81, Woodhouse Lane591 m away | 103 m² | 122 m² | +19 m² +18% | 2016 |
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| 53, Surtees Street850 m away | 80 m² | 99 m² | +19 m² +24% | 2014 |
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| 1, Beaumont Street345 m away | 73 m² | 92 m² | +19 m² +26% | 2013 |
|---|
| 21, Vart Road712 m away | 85 m² | 104 m² | +19 m² +22% | 2013 |
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| 16, Vickers Street808 m away | 69 m² | 87 m² | +18 m² +26% | 2025 |
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| 140, Cockton Hill Road448 m away | 114 m² | 132 m² | +18 m² +16% | 2015 |
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| The Nook, East Deanery976 m away | 108 m² | 126 m² | +18 m² +17% | 2013 |
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| 5, Balmoral Grove350 m away | 78 m² | 96 m² | +18 m² +23% | 2011 |
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| 70, Princes Street813 m away | 55 m² | 72 m² | +17 m² +31% | 2026 |
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| 11, Short Street479 m away | 82 m² | 99 m² | +17 m² +21% | 2023 |
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| 20, Salisbury Place697 m away | 113 m² | 130 m² | +17 m² +15% | 2023 |
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| 22, Frances Terrace392 m away | 70 m² | 87 m² | +17 m² +24% | 2020 |
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| 21, Sun Street469 m away | 53 m² | 70 m² | +17 m² +32% | 2020 |
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| 13, Etherley Lane879 m away | 86 m² | 103 m² | +17 m² +20% | 2017 |
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| 32, North End Gardens704 m away | 77 m² | 94 m² | +17 m² +22% | 2015 |
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| 31, Short Street479 m away | 72 m² | 89 m² | +17 m² +24% | 2013 |
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| 18, Bamburgh Avenue746 m away | 62 m² | 79 m² | +17 m² +27% | 2013 |
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| 13, Gibbon Street882 m away | 75 m² | 91 m² | +16 m² +21% | 2026 |
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| 9, Stranton Street843 m away | 102 m² | 118 m² | +16 m² +16% | 2025 |
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| 17, Bell Street241 m away | 90 m² | 106 m² | +16 m² +18% | 2024 |
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| 12, Stranton Street843 m away | 69 m² | 85 m² | +16 m² +23% | 2024 |
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| 3, Hutchinson Street582 m away | 53 m² | 69 m² | +16 m² +30% | 2022 |
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| 15, Hutchinson Street582 m away | 65 m² | 81 m² | +16 m² +25% | 2021 |
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| 43, South Church Road763 m away | 78 m² | 94 m² | +16 m² +21% | 2021 |
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| 17, Barnard Avenue0 m away | 79 m² | 95 m² | +16 m² +20% | 2016 |
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| 20, Westlea Avenue365 m away | 100 m² | 116 m² | +16 m² +16% | 2016 |
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| 6, Wood Square799 m away | 78 m² | 94 m² | +16 m² +21% | 2014 |
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| 31, Eastlea Avenue408 m away | 70 m² | 85 m² | +15 m² +21% | 2025 |
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| 10, Hillbeck Street965 m away | 70 m² | 85 m² | +15 m² +21% | 2025 |
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| 28, Hurworth Street181 m away | 87 m² | 102 m² | +15 m² +17% | 2024 |
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| 11, Hillbeck Street965 m away | 62 m² | 77 m² | +15 m² +24% | 2023 |
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| 32, Walmer Avenue332 m away | 86 m² | 101 m² | +15 m² +17% | 2017 |
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| 6, Blackett Street407 m away | 70 m² | 85 m² | +15 m² +21% | 2016 |
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| 2, Barnard Avenue0 m away | 80 m² | 95 m² | +15 m² +19% | 2014 |
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| 11, Hutchinson Street582 m away | 68 m² | 83 m² | +15 m² +22% | 2014 |
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| 6, Holdforth Drive459 m away | 78 m² | 93 m² | +15 m² +19% | 2013 |
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