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 BL1 8SP
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 |
|---|---|---|---|---|
| 36, Walnut Street494 m away | 84 m² | 175 m² | +91 m² +108% | 2022 |
| 165, Tonge Moor Road920 m away | 101 m² | 168 m² | +67 m² +66% | 2024 |
| 43, Seymour Road729 m away | 258 m² | 316 m² | +58 m² +22% | 2022 |
| 62, Wolfenden Street968 m away | 68 m² | 120 m² | +52 m² +76% | 2015 |
| 121, Holland Street955 m away | 67 m² | 115 m² | +48 m² +72% | 2016 |
| 206, Blackburn Road718 m away | 152 m² | 200 m² | +48 m² +32% | 2015 |
| 276, Blackburn Road718 m away | 244 m² | 291 m² | +47 m² +19% | 2014 |
| 433, Blackburn Road806 m away | 89 m² | 135 m² | +46 m² +52% | 2025 |
| 202, Blackburn Road718 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.
| 183 m² |
| 227 m² |
| +44 m² +24% |
| 2017 |
| 652, Crompton Way633 m away | 72 m² | 114 m² | +42 m² +58% | 2011 |
|---|
| 4, Eastbank Street569 m away | 92 m² | 132 m² | +40 m² +43% | 2016 |
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| 63, Pine Street478 m away | 64 m² | 104 m² | +40 m² +63% | 2014 |
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| 50, Wolfenden Street968 m away | 71 m² | 110 m² | +39 m² +55% | 2025 |
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| 8, Brailsford Road863 m away | 108 m² | 147 m² | +39 m² +36% | 2021 |
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| 57, Crumpsall Street978 m away | 61 m² | 100 m² | +39 m² +64% | 2014 |
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| 4, Birley Street844 m away | 53 m² | 90 m² | +37 m² +70% | 2015 |
|---|
| 35, Walnut Street494 m away | 139 m² | 176 m² | +37 m² +27% | 2014 |
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| 210, Tonge Moor Road908 m away | 100 m² | 136 m² | +36 m² +36% | 2023 |
|---|
| 12, Orchard Avenue554 m away | 97 m² | 133 m² | +36 m² +37% | 2015 |
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| 79, Grasmere Street617 m away | 213 m² | 249 m² | +36 m² +17% | 2015 |
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| 24, The Stray776 m away | 81 m² | 117 m² | +36 m² +44% | 2014 |
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| 450, Tonge Moor Road667 m away | 77 m² | 113 m² | +36 m² +47% | 2012 |
|---|
| 45, Parkgate Drive895 m away | 57 m² | 92 m² | +35 m² +61% | 2018 |
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| 9, Halbury Walk392 m away | 134 m² | 169 m² | +35 m² +26% | 2016 |
|---|
| 15, Eastbank Street569 m away | 85 m² | 118 m² | +33 m² +39% | 2016 |
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| 23, Castleton Street569 m away | 64 m² | 96 m² | +32 m² +50% | 2015 |
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| 16, Linwood House, Seymour Road638 m away | 54 m² | 84 m² | +30 m² +56% | 2024 |
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| 19, Sunnymead Avenue595 m away | 92 m² | 121 m² | +29 m² +32% | 2023 |
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| 3, Almond Street680 m away | 65 m² | 94 m² | +29 m² +45% | 2022 |
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| 20, Thorn Street486 m away | 70 m² | 99 m² | +29 m² +41% | 2014 |
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| 191, Tonge Moor Road920 m away | 178 m² | 205 m² | +27 m² +15% | 2022 |
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| 10, Fir Street489 m away | 86 m² | 113 m² | +27 m² +31% | 2013 |
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| 477, Tonge Moor Road628 m away | 61 m² | 86 m² | +25 m² +41% | 2023 |
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| 30, Green Way583 m away | 83 m² | 108 m² | +25 m² +30% | 2016 |
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| 100, Grasmere Street617 m away | 73 m² | 98 m² | +25 m² +34% | 2014 |
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| 329, Tonge Moor Road648 m away | 56 m² | 81 m² | +25 m² +45% | 2012 |
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| 20, Waverley Road909 m away | 102 m² | 126 m² | +24 m² +24% | 2020 |
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| 43, Crumpsall Street978 m away | 61 m² | 85 m² | +24 m² +39% | 2013 |
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| 18, Ladymeadow Close395 m away | 94 m² | 117 m² | +23 m² +24% | 2020 |
|---|
| 80, Seymour Road590 m away | 132 m² | 155 m² | +23 m² +17% | 2013 |
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| 508, Tonge Moor Road667 m away | 130 m² | 152 m² | +22 m² +17% | 2024 |
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| 50, Seymour Road590 m away | 132 m² | 154 m² | +22 m² +17% | 2019 |
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| 123, Seymour Road428 m away | 114 m² | 136 m² | +22 m² +19% | 2016 |
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| 14, Rushford Grove866 m away | 102 m² | 124 m² | +22 m² +22% | 2015 |
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| 10, Elsworth Drive764 m away | 83 m² | 105 m² | +22 m² +27% | 2014 |
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| 9, Anson Street580 m away | 55 m² | 76 m² | +21 m² +38% | 2016 |
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| 28, Hallbridge Gardens207 m away | 80 m² | 101 m² | +21 m² +26% | 2014 |
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| 18, Fir Street489 m away | 85 m² | 106 m² | +21 m² +25% | 2014 |
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| 649, Crompton Way601 m away | 100 m² | 121 m² | +21 m² +21% | 2013 |
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| 61, Parkgate Drive895 m away | 32 m² | 52 m² | +20 m² +63% | 2015 |
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| 7, Thorn Street486 m away | 65 m² | 85 m² | +20 m² +31% | 2013 |
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| 355, Blackburn Road725 m away | 125 m² | 145 m² | +20 m² +16% | 2013 |
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| 347, Tonge Moor Road648 m away | 58 m² | 78 m² | +20 m² +34% | 2011 |
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| 40, Waverley Road909 m away | 123 m² | 143 m² | +20 m² +16% | 2011 |
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| 3, Marple Avenue732 m away | 39 m² | 58 m² | +19 m² +49% | 2020 |
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| 390, Crompton Way852 m away | 88 m² | 107 m² | +19 m² +22% | 2020 |
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| 1, Old Road877 m away | 123 m² | 142 m² | +19 m² +15% | 2017 |
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| 71, Moorfield Grove862 m away | 61 m² | 80 m² | +19 m² +31% | 2015 |
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| 47, Hallbridge Gardens207 m away | 122 m² | 141 m² | +19 m² +16% | 2014 |
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| 73, Crumpsall Street978 m away | 66 m² | 85 m² | +19 m² +29% | 2014 |
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| 132 - 134, Blackburn Road877 m away | 32 m² | 50 m² | +18 m² +56% | 2010 |
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| 62, Rawsthorne Street934 m away | 53 m² | 70 m² | +17 m² +32% | 2024 |
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| 505, Tonge Moor Road628 m away | 98 m² | 115 m² | +17 m² +17% | 2016 |
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| 137, Blackburn Road928 m away | 74 m² | 91 m² | +17 m² +23% | 2015 |
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| 16, Sutcliffe Street947 m away | 103 m² | 120 m² | +17 m² +17% | 2015 |
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| 64, Astley Street955 m away | 98 m² | 115 m² | +17 m² +17% | 2015 |
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| 9, Eastbank Street569 m away | 56 m² | 73 m² | +17 m² +30% | 2014 |
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| 35, Windermere Street518 m away | 91 m² | 107 m² | +16 m² +18% | 2026 |
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| 10, Exeter Avenue800 m away | 61 m² | 77 m² | +16 m² +26% | 2026 |
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| 36, Moorfield Grove945 m away | 64 m² | 80 m² | +16 m² +25% | 2024 |
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| 53, Waterside Gardens150 m away | 61 m² | 77 m² | +16 m² +26% | 2023 |
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| 40, Waterside Gardens150 m away | 74 m² | 90 m² | +16 m² +22% | 2019 |
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| 40, Eastbank Street569 m away | 80 m² | 96 m² | +16 m² +20% | 2016 |
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| 13, North Way610 m away | 64 m² | 80 m² | +16 m² +25% | 2016 |
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| 668, Crompton Way633 m away | 86 m² | 102 m² | +16 m² +19% | 2014 |
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| 25, Fairhaven Road353 m away | 65 m² | 80 m² | +15 m² +23% | 2020 |
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| 69, Waterside Gardens150 m away | 47 m² | 62 m² | +15 m² +32% | 2019 |
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| 30, The Stray776 m away | 79 m² | 94 m² | +15 m² +19% | 2018 |
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| 170, Blackburn Road825 m away | 42 m² | 57 m² | +15 m² +36% | 2017 |
|---|
| 11, Old Road877 m away | 96 m² | 111 m² | +15 m² +16% | 2016 |
|---|
| 60, Le Gendre Street837 m away | 65 m² | 80 m² | +15 m² +23% | 2015 |
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| 684, Crompton Way633 m away | 80 m² | 95 m² | +15 m² +19% | 2014 |
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