Finding extended homes…
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Sign in to keep them on every device →Finding extended homes…
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 NN2 7JJ
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 |
|---|---|---|---|---|
| 10, The Crescent419 m away | 109 m² | 254 m² | +145 m² +133% | 2019 |
| 22, Abington Grove360 m away | 233 m² | 334 m² | +101 m² +43% | 2026 |
| 108, Adams Avenue961 m away | 110 m² | 205 m² | +95 m² +86% | 2016 |
| 54, East Park Parade319 m away | 264 m² | 347 m² | +83 m² +31% | 2014 |
| 236, Abington Avenue840 m away | 141 m² | 223 m² | +82 m² +58% | 2021 |
| 123, Milton Street North251 m away | 92 m² | 173 m² | +81 m² +88% | 2021 |
| 78, The Drive666 m away | 81 m² | 160 m² | +79 m² +98% | 2018 |
| 21, St Michaels Mount884 m away | 99 m² | 178 m² | +79 m² +80% | 2016 |
| 19, St Matthews Parade241 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.
| 333 m² |
| 409 m² |
| +76 m² +23% |
| 2022 |
| 63a, The Drive394 m away | 181 m² | 254 m² | +73 m² +40% | 2013 |
|---|
| 68, Shelley Street261 m away | 52 m² | 121 m² | +69 m² +133% | 2019 |
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| 149, Kingsley Road613 m away | 45 m² | 112 m² | +67 m² +149% | 2023 |
|---|
| 69, Birchfield Road600 m away | 141 m² | 208 m² | +67 m² +48% | 2018 |
|---|
| 45, St Matthews Parade339 m away | 164 m² | 230 m² | +66 m² +40% | 2012 |
|---|
| 42, St Georges Avenue919 m away | 120 m² | 183 m² | +63 m² +53% | 2026 |
|---|
| 26, East Park Parade464 m away | 42 m² | 105 m² | +63 m² +150% | 2011 |
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| 68, Kingsley Road84 m away | 187 m² | 247 m² | +60 m² +32% | 2023 |
|---|
| 130, Artizan Road969 m away | 68 m² | 128 m² | +60 m² +88% | 2020 |
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| 162, Abington Avenue618 m away | 119 m² | 178 m² | +59 m² +50% | 2020 |
|---|
| 37, Park Avenue North812 m away | 152 m² | 211 m² | +59 m² +39% | 2012 |
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| 70, Kingsley Road84 m away | 200 m² | 258 m² | +58 m² +29% | 2020 |
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| 105, Abington Avenue599 m away | 104 m² | 161 m² | +57 m² +55% | 2024 |
|---|
| 84, St Georges Avenue234 m away | 206 m² | 263 m² | +57 m² +28% | 2022 |
|---|
| 14, Birchfield Road502 m away | 82 m² | 139 m² | +57 m² +70% | 2022 |
|---|
| 82, Park Avenue North794 m away | 133 m² | 188 m² | +55 m² +41% | 2023 |
|---|
| 24, Malcolm Road631 m away | 71 m² | 126 m² | +55 m² +77% | 2014 |
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| 19, The Drive308 m away | 290 m² | 344 m² | +54 m² +19% | 2013 |
|---|
| 73, Derby Road684 m away | 89 m² | 141 m² | +52 m² +58% | 2021 |
|---|
| 4, Ivy Road539 m away | 114 m² | 165 m² | +51 m² +45% | 2025 |
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| 6, Sheriff Road992 m away | 84 m² | 134 m² | +50 m² +60% | 2022 |
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| 127, Stanhope Road941 m away | 50 m² | 100 m² | +50 m² +100% | 2018 |
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| 66, Byron Street179 m away | 73 m² | 122 m² | +49 m² +67% | 2023 |
|---|
| 110a, Clarke Road814 m away | 33 m² | 82 m² | +49 m² +148% | 2018 |
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| Apartment 7, The Normal Boot & Shoe Factory, 34 - 48, Talbot Road958 m away | 81 m² | 129 m² | +48 m² +59% | 2019 |
|---|
| 30, Greenview Drive650 m away | 45 m² | 92 m² | +47 m² +104% | 2026 |
|---|
| 33, St Michaels Mount884 m away | 101 m² | 148 m² | +47 m² +47% | 2024 |
|---|
| 7, Brackenhill Close957 m away | 49 m² | 95 m² | +46 m² +94% | 2026 |
|---|
| 44, Murray Avenue572 m away | 65 m² | 111 m² | +46 m² +71% | 2022 |
|---|
| 226, Abington Avenue840 m away | 150 m² | 195 m² | +45 m² +30% | 2024 |
|---|
| 83, Broadway East914 m away | 94 m² | 139 m² | +45 m² +48% | 2024 |
|---|
| 26, Wantage Road959 m away | 65 m² | 110 m² | +45 m² +69% | 2019 |
|---|
| 28, The Drive394 m away | 77 m² | 122 m² | +45 m² +58% | 2015 |
|---|
| 107, Kingsley Road613 m away | 94 m² | 138 m² | +44 m² +47% | 2023 |
|---|
| 53, Wantage Road959 m away | 84 m² | 128 m² | +44 m² +52% | 2023 |
|---|
| 24, Collingwood Road513 m away | 94 m² | 137 m² | +43 m² +46% | 2022 |
|---|
| 47, Colwyn Road813 m away | 166 m² | 209 m² | +43 m² +26% | 2021 |
|---|
| 1, Sheriff Road992 m away | 69 m² | 111 m² | +42 m² +61% | 2014 |
|---|
| 117, Hunter Street938 m away | 88 m² | 129 m² | +41 m² +47% | 2023 |
|---|
| 37, Holly Road525 m away | 131 m² | 172 m² | +41 m² +31% | 2018 |
|---|
| 60, Moore Street323 m away | 28 m² | 68 m² | +40 m² +143% | 2025 |
|---|
| 54, Trinity Avenue663 m away | 91 m² | 131 m² | +40 m² +44% | 2020 |
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| 8, The Crescent419 m away | 62 m² | 102 m² | +40 m² +65% | 2012 |
|---|
| 39, Kenmuir Avenue718 m away | 68 m² | 107 m² | +39 m² +57% | 2023 |
|---|
| 55, East Park Parade319 m away | 61 m² | 100 m² | +39 m² +64% | 2022 |
|---|
| 114, Colwyn Road717 m away | 101 m² | 140 m² | +39 m² +39% | 2022 |
|---|
| 131, Colwyn Road672 m away | 57 m² | 96 m² | +39 m² +68% | 2015 |
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| 53, Derby Road684 m away | 101 m² | 139 m² | +38 m² +38% | 2026 |
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| 184, Cedar Road East938 m away | 105 m² | 143 m² | +38 m² +36% | 2023 |
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| 13, Chestnut Road903 m away | 61 m² | 99 m² | +38 m² +62% | 2022 |
|---|
| 89, Oliver Street33 m away | 82 m² | 119 m² | +37 m² +45% | 2015 |
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| 14, Broadway524 m away | 197 m² | 233 m² | +36 m² +18% | 2022 |
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| 72, Greenview Drive964 m away | 53 m² | 89 m² | +36 m² +68% | 2020 |
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| 106, Birchfield Road622 m away | 79 m² | 115 m² | +36 m² +46% | 2018 |
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| 94, Colwyn Road717 m away | 79 m² | 115 m² | +36 m² +46% | 2018 |
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| 27, Burns Street878 m away | 40 m² | 76 m² | +36 m² +90% | 2018 |
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| 113, Beech Avenue979 m away | 86 m² | 122 m² | +36 m² +42% | 2014 |
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| 53, Collingwood Road513 m away | 84 m² | 120 m² | +36 m² +43% | 2012 |
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| Flat 5, 23, Clarke Road800 m away | 24 m² | 60 m² | +36 m² +150% | 2010 |
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| 58, Kingsley Road84 m away | 215 m² | 250 m² | +35 m² +16% | 2021 |
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| 51, Cowper Street862 m away | 87 m² | 122 m² | +35 m² +40% | 2021 |
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| 42, The Vale500 m away | 89 m² | 124 m² | +35 m² +39% | 2018 |
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| 65, Murray Avenue572 m away | 74 m² | 108 m² | +34 m² +46% | 2012 |
|---|
| 28, Clarke Road814 m away | 90 m² | 123 m² | +33 m² +37% | 2026 |
|---|
| 18, Birchfield Road502 m away | 124 m² | 156 m² | +32 m² +26% | 2023 |
|---|
| 32, Raeburn Road538 m away | 52 m² | 84 m² | +32 m² +62% | 2021 |
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| 34, Park Avenue North817 m away | 173 m² | 205 m² | +32 m² +18% | 2021 |
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| 42, Hunter Street942 m away | 68 m² | 100 m² | +32 m² +47% | 2020 |
|---|
| 81, Ashburnham Road671 m away | 96 m² | 127 m² | +31 m² +32% | 2026 |
|---|
| 108, Balfour Road874 m away | 93 m² | 124 m² | +31 m² +33% | 2024 |
|---|
| 40, St Georges Avenue919 m away | 141 m² | 172 m² | +31 m² +22% | 2024 |
|---|
| 4, Gray Street967 m away | 87 m² | 118 m² | +31 m² +36% | 2018 |
|---|
| 32, Ivy Road539 m away | 105 m² | 135 m² | +30 m² +29% | 2026 |
|---|
| 6, Stanhope Road933 m away | 78 m² | 108 m² | +30 m² +38% | 2025 |
|---|
| 138, Kingsley Road234 m away | 94 m² | 124 m² | +30 m² +32% | 2024 |
|---|
| 152, Ashburnham Road760 m away | 92 m² | 122 m² | +30 m² +33% | 2024 |
|---|
| 31, St Michaels Mount884 m away | 118 m² | 148 m² | +30 m² +25% | 2024 |
|---|
| 73, Lea Road744 m away | 75 m² | 105 m² | +30 m² +40% | 2023 |
|---|
| 74, Talbot Road968 m away | 67 m² | 97 m² | +30 m² +45% | 2022 |
|---|
| 135, Whitworth Road947 m away | 91 m² | 121 m² | +30 m² +33% | 2021 |
|---|
| 12, Carlton Road320 m away | 81 m² | 111 m² | +30 m² +37% | 2018 |
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| 101, Kingsley Road613 m away | 56 m² | 86 m² | +30 m² +54% | 2018 |
|---|
| 17, Holly Road525 m away | 138 m² | 167 m² | +29 m² +21% | 2022 |
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| 17, Masefield Way520 m away | 48 m² | 77 m² | +29 m² +60% | 2015 |
|---|
| 68, Henry Street934 m away | 85 m² | 114 m² | +29 m² +34% | 2009 |
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| 28, Stanhope Road933 m away | 74 m² | 102 m² | +28 m² +38% | 2023 |
|---|
| Apartment 18, Martonia Buildings, 62 - 68, Artizan Road969 m away | 46 m² | 74 m² | +28 m² +61% | 2020 |
|---|
| 91, Broadway East914 m away | 83 m² | 110 m² | +27 m² +33% | 2024 |
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| 85, Bostock Avenue965 m away | 116 m² | 143 m² | +27 m² +23% | 2023 |
|---|
| 22, Hawthorn Road922 m away | 106 m² | 133 m² | +27 m² +25% | 2022 |
|---|
| 86, Moore Street323 m away | 81 m² | 108 m² | +27 m² +33% | 2021 |
|---|
| Flat 8, Galliard Court, 48, Baronson Gardens802 m away | 34 m² | 61 m² | +27 m² +79% | 2021 |
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| 100, Ashburnham Road671 m away | 149 m² | 176 m² | +27 m² +18% | 2020 |
|---|
| 62, Roe Road803 m away | 84 m² | 111 m² | +27 m² +32% | 2014 |
|---|
| 162, Balfour Road874 m away | 76 m² | 103 m² | +27 m² +36% | 2009 |
|---|
| 108, St Georges Avenue234 m away | 42 m² | 69 m² | +27 m² +64% | 2008 |
|---|
| 2, Kingsley Gardens259 m away | 111 m² | 137 m² | +26 m² +23% | 2026 |
|---|
| 65, Holly Road386 m away | 152 m² | 178 m² | +26 m² +17% | 2023 |
|---|
| 96, Whitworth Road962 m away | 82 m² | 108 m² | +26 m² +32% | 2023 |
|---|
| 8, Oliver Street0 m away | 97 m² | 123 m² | +26 m² +27% | 2021 |
|---|
| 100, Lea Road749 m away | 117 m² | 143 m² | +26 m² +22% | 2021 |
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| 121, Colwyn Road672 m away | 30 m² | 56 m² | +26 m² +87% | 2019 |
|---|
| 36, Roe Road803 m away | 80 m² | 105 m² | +25 m² +31% | 2024 |
|---|
| 97, Ashburnham Road671 m away | 96 m² | 121 m² | +25 m² +26% | 2023 |
|---|
| 112, Cedar Road East938 m away | 102 m² | 127 m² | +25 m² +25% | 2023 |
|---|
| 6, Chestnut Road903 m away | 84 m² | 109 m² | +25 m² +30% | 2021 |
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| 160, Birchfield Road726 m away | 127 m² | 152 m² | +25 m² +20% | 2018 |
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| 76, Clarke Road814 m away | 44 m² | 69 m² | +25 m² +57% | 2018 |
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| 35, Cedar Road569 m away | 110 m² | 134 m² | +24 m² +22% | 2026 |
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| 107, Lea Road744 m away | 122 m² | 146 m² | +24 m² +20% | 2022 |
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| 51, Derby Road684 m away | 97 m² | 121 m² | +24 m² +25% | 2021 |
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| 49, Hood Street769 m away | 131 m² | 155 m² | +24 m² +18% | 2021 |
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| 9, Clarke Road800 m away | 79 m² | 103 m² | +24 m² +30% | 2021 |
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| 44, Broadway645 m away | 102 m² | 126 m² | +24 m² +24% | 2020 |
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| 46, Whitworth Road962 m away | 85 m² | 108 m² | +23 m² +27% | 2025 |
|---|
| 77, Lea Road744 m away | 77 m² | 100 m² | +23 m² +30% | 2022 |
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| 75, Ivy Road510 m away | 90 m² | 113 m² | +23 m² +26% | 2020 |
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| 111, Adams Avenue961 m away | 129 m² | 152 m² | +23 m² +18% | 2018 |
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| 18, The Crescent419 m away | 96 m² | 119 m² | +23 m² +24% | 2010 |
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| 151, Ashburnham Road760 m away | 91 m² | 113 m² | +22 m² +24% | 2026 |
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| 33b, Junction Road207 m away | 102 m² | 124 m² | +22 m² +22% | 2025 |
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| Flat 6, Galliard Court, 48, Baronson Gardens802 m away | 31 m² | 53 m² | +22 m² +71% | 2024 |
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| Flat 14, Webbs Factory, Brockton Street923 m away | 74 m² | 96 m² | +22 m² +30% | 2023 |
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| 88, Whitworth Road962 m away | 98 m² | 120 m² | +22 m² +22% | 2021 |
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| 141, Adnitt Road913 m away | 62 m² | 84 m² | +22 m² +35% | 2016 |
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| Ivy Court, 20, Abington Grove496 m away | 52 m² | 74 m² | +22 m² +42% | 2014 |
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| 83, Colwyn Road672 m away | 22 m² | 44 m² | +22 m² +100% | 2014 |
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| 65, Artizan Road938 m away | 88 m² | 110 m² | +22 m² +25% | 2014 |
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| 84, Hood Street776 m away | 60 m² | 82 m² | +22 m² +37% | 2012 |
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| 171, Milton Street North410 m away | 72 m² | 93 m² | +21 m² +29% | 2024 |
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| 28, Birchfield Road502 m away | 114 m² | 135 m² | +21 m² +18% | 2024 |
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| 43, Stanhope Road941 m away | 81 m² | 102 m² | +21 m² +26% | 2024 |
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| 89, Adams Avenue961 m away | 118 m² | 139 m² | +21 m² +18% | 2017 |
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| 15, Masefield Way520 m away | 45 m² | 66 m² | +21 m² +47% | 2015 |
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| 114, Park Avenue North812 m away | 115 m² | 136 m² | +21 m² +18% | 2014 |
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| 221, Hazeldene Road963 m away | 91 m² | 112 m² | +21 m² +23% | 2014 |
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| 30, Collingwood Road513 m away | 120 m² | 141 m² | +21 m² +18% | 2012 |
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| 34, Burns Street878 m away | 106 m² | 126 m² | +20 m² +19% | 2025 |
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| 57, Whitworth Road947 m away | 76 m² | 96 m² | +20 m² +26% | 2025 |
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| 151, Adnitt Road913 m away | 75 m² | 95 m² | +20 m² +27% | 2024 |
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| 41, Clarke Road800 m away | 76 m² | 96 m² | +20 m² +26% | 2023 |
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| 47, Wantage Road959 m away | 83 m² | 103 m² | +20 m² +24% | 2023 |
|---|
| 90, Birchfield Road622 m away | 125 m² | 145 m² | +20 m² +16% | 2020 |
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| 46, Milton Street101 m away | 64 m² | 84 m² | +20 m² +31% | 2019 |
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| 107, Raeburn Road552 m away | 66 m² | 86 m² | +20 m² +30% | 2019 |
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| Apartment 5, Top Boot Factory, 20, Henry Street934 m away | 51 m² | 71 m² | +20 m² +39% | 2019 |
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| 65, Adams Avenue961 m away | 88 m² | 108 m² | +20 m² +23% | 2019 |
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| 41, The Vale542 m away | 91 m² | 111 m² | +20 m² +22% | 2013 |
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| 3, Gray Street967 m away | 40 m² | 60 m² | +20 m² +50% | 2009 |
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| 66, Ashburnham Road671 m away | 93 m² | 112 m² | +19 m² +20% | 2026 |
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| 65, Stimpson Avenue996 m away | 113 m² | 132 m² | +19 m² +17% | 2025 |
|---|
| 103, Balfour Road899 m away | 95 m² | 114 m² | +19 m² +20% | 2024 |
|---|
| 5, Gray Street967 m away | 96 m² | 115 m² | +19 m² +20% | 2023 |
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| 50, Bostock Avenue965 m away | 96 m² | 115 m² | +19 m² +20% | 2022 |
|---|
| 80, Artizan Road969 m away | 89 m² | 108 m² | +19 m² +21% | 2022 |
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| 44, The Vale500 m away | 86 m² | 105 m² | +19 m² +22% | 2020 |
|---|
| 25, Ashburnham Road547 m away | 73 m² | 92 m² | +19 m² +26% | 2020 |
|---|
| 108, Adnitt Road917 m away | 102 m² | 121 m² | +19 m² +19% | 2020 |
|---|
| 77, Hunter Street938 m away | 77 m² | 96 m² | +19 m² +25% | 2020 |
|---|
| 6, Derby Road707 m away | 81 m² | 100 m² | +19 m² +23% | 2019 |
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| 101, Whitworth Road947 m away | 78 m² | 97 m² | +19 m² +24% | 2019 |
|---|
| 92, Cedar Road669 m away | 39 m² | 58 m² | +19 m² +49% | 2016 |
|---|
| 159, Milton Street North410 m away | 73 m² | 92 m² | +19 m² +26% | 2013 |
|---|
| Flat 1, The Junction, 1a, Abington Avenue637 m away | 36 m² | 54 m² | +18 m² +50% | 2026 |
|---|
| 75, Ashburnham Road671 m away | 105 m² | 123 m² | +18 m² +17% | 2026 |
|---|
| 70, Bostock Avenue965 m away | 111 m² | 129 m² | +18 m² +16% | 2025 |
|---|
| 15, Kingsley Road295 m away | 94 m² | 112 m² | +18 m² +19% | 2024 |
|---|
| 47, Byron Street160 m away | 90 m² | 108 m² | +18 m² +20% | 2023 |
|---|
| 28, Homestead Way302 m away | 104 m² | 122 m² | +18 m² +17% | 2022 |
|---|
| 93, Abington Avenue599 m away | 50 m² | 68 m² | +18 m² +36% | 2022 |
|---|
| 101, Cedar Road669 m away | 106 m² | 124 m² | +18 m² +17% | 2022 |
|---|
| 64, Broadway645 m away | 107 m² | 125 m² | +18 m² +17% | 2021 |
|---|
| 95, Derby Road684 m away | 82 m² | 100 m² | +18 m² +22% | 2020 |
|---|
| Flat 6, 4, The Drive308 m away | 64 m² | 82 m² | +18 m² +28% | 2016 |
|---|
| 75, Lea Road744 m away | 90 m² | 108 m² | +18 m² +20% | 2014 |
|---|
| 63, Ashburnham Road547 m away | 84 m² | 102 m² | +18 m² +21% | 2013 |
|---|
| 9, Murray Avenue572 m away | 87 m² | 105 m² | +18 m² +21% | 2013 |
|---|
| 60, Romany Road368 m away | 92 m² | 109 m² | +17 m² +18% | 2026 |
|---|
| 15, Perry Street844 m away | 83 m² | 100 m² | +17 m² +20% | 2026 |
|---|
| 166, Adnitt Road949 m away | 88 m² | 105 m² | +17 m² +19% | 2025 |
|---|
| 4, Cedar Road569 m away | 95 m² | 112 m² | +17 m² +18% | 2024 |
|---|
| 6, Cedar Road569 m away | 89 m² | 106 m² | +17 m² +19% | 2024 |
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| 10, Collingwood Road576 m away | 89 m² | 106 m² | +17 m² +19% | 2023 |
|---|
| 72, Hood Street776 m away | 92 m² | 109 m² | +17 m² +18% | 2022 |
|---|
| 24, Stanhope Road933 m away | 77 m² | 94 m² | +17 m² +22% | 2022 |
|---|
| 5, Percy Road995 m away | 79 m² | 96 m² | +17 m² +22% | 2022 |
|---|
| 14, Stanhope Road933 m away | 89 m² | 106 m² | +17 m² +19% | 2021 |
|---|
| 97, Adams Avenue961 m away | 110 m² | 127 m² | +17 m² +15% | 2021 |
|---|
| 75, Derby Road684 m away | 70 m² | 87 m² | +17 m² +24% | 2020 |
|---|
| 50, Clarke Road814 m away | 81 m² | 98 m² | +17 m² +21% | 2020 |
|---|
| 13, Highfield Road706 m away | 65 m² | 82 m² | +17 m² +26% | 2018 |
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