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 UB1 2NQ
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 |
|---|---|---|---|---|
| 21, Masefield Avenue927 m away | 104 m² | 232 m² | +128 m² +123% | 2014 |
| 162, Ashford Avenue980 m away | 111 m² | 235 m² | +124 m² +112% | 2026 |
| 67, West Avenue867 m away | 73 m² | 181 m² | +108 m² +148% | 2021 |
| 7, Kenilworth Gardens944 m away | 84 m² | 177 m² | +93 m² +111% | 2026 |
| 314, Lady Margaret Road0 m away | 93 m² | 186 m² | +93 m² +100% | 2025 |
| 80, Lady Margaret Road918 m away | 92 m² | 173 m² | +81 m² +88% | 2026 |
| 54, Allendale Avenue332 m away | 67 m² | 148 m² | +81 m² +121% | 2024 |
| 104, Somerset Road374 m away | 72 m² | 152 m² | +80 m² +111% | 2021 |
| 14, Waxlow Crescent494 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.
| 92 m² |
| 171 m² |
| +79 m² +86% |
| 2026 |
| 3, Marsworth Close595 m away | 60 m² | 129 m² | +69 m² +115% | 2018 |
|---|
| 1, Glenorchy Close523 m away | 74 m² | 142 m² | +68 m² +92% | 2025 |
|---|
| 127, Hurley Road888 m away | 83 m² | 150 m² | +67 m² +81% | 2022 |
|---|
| 31, Ramulis Drive975 m away | 61 m² | 128 m² | +67 m² +110% | 2014 |
|---|
| 72, Westbury Avenue528 m away | 67 m² | 131 m² | +64 m² +96% | 2017 |
|---|
| 7, Towers Road883 m away | 69 m² | 131 m² | +62 m² +90% | 2018 |
|---|
| 128, Westbury Avenue675 m away | 52 m² | 113 m² | +61 m² +117% | 2021 |
|---|
| 117, Allenby Road572 m away | 78 m² | 138 m² | +60 m² +77% | 2022 |
|---|
| 25, Avon Road945 m away | 84 m² | 144 m² | +60 m² +71% | 2019 |
|---|
| 26, Bycroft Road578 m away | 65 m² | 122 m² | +57 m² +88% | 2023 |
|---|
| 100, Glencoe Road672 m away | 44 m² | 98 m² | +54 m² +123% | 2023 |
|---|
| 9, East Avenue863 m away | 56 m² | 109 m² | +53 m² +95% | 2025 |
|---|
| 71, Greenford Avenue842 m away | 65 m² | 116 m² | +51 m² +78% | 2025 |
|---|
| 47, Burns Avenue845 m away | 37 m² | 88 m² | +51 m² +138% | 2025 |
|---|
| 79, Somerset Road401 m away | 83 m² | 133 m² | +50 m² +60% | 2026 |
|---|
| 2, Denbigh Road380 m away | 80 m² | 129 m² | +49 m² +61% | 2023 |
|---|
| 65, Upper Town Road816 m away | 80 m² | 129 m² | +49 m² +61% | 2017 |
|---|
| 228, Lady Margaret Road305 m away | 71 m² | 119 m² | +48 m² +68% | 2026 |
|---|
| 399, Allenby Road771 m away | 84 m² | 132 m² | +48 m² +57% | 2026 |
|---|
| 41, Ramulis Drive975 m away | 60 m² | 108 m² | +48 m² +80% | 2017 |
|---|
| 33, Allendale Avenue532 m away | 82 m² | 129 m² | +47 m² +57% | 2025 |
|---|
| 161, North Road714 m away | 85 m² | 132 m² | +47 m² +55% | 2025 |
|---|
| 111, Lady Margaret Road817 m away | 100 m² | 147 m² | +47 m² +47% | 2025 |
|---|
| 16, Hillside Road710 m away | 64 m² | 111 m² | +47 m² +73% | 2024 |
|---|
| 33, Patching Way821 m away | 103 m² | 150 m² | +47 m² +46% | 2016 |
|---|
| 87, Westbury Avenue550 m away | 71 m² | 118 m² | +47 m² +66% | 2015 |
|---|
| 150, Rutland Road540 m away | 56 m² | 102 m² | +46 m² +82% | 2026 |
|---|
| 45, Carlyle Avenue724 m away | 90 m² | 136 m² | +46 m² +51% | 2026 |
|---|
| 15, Sharpness Close720 m away | 45 m² | 91 m² | +46 m² +102% | 2024 |
|---|
| 6, Evelyn Grove629 m away | 84 m² | 129 m² | +45 m² +54% | 2026 |
|---|
| 113, Kings Avenue782 m away | 92 m² | 137 m² | +45 m² +49% | 2026 |
|---|
| 44, Carlyle Avenue734 m away | 89 m² | 134 m² | +45 m² +51% | 2022 |
|---|
| 9, Airdrie Close615 m away | 45 m² | 88 m² | +43 m² +96% | 2021 |
|---|
| 93, Telford Way654 m away | 80 m² | 123 m² | +43 m² +54% | 2013 |
|---|
| 138, Allenby Road606 m away | 76 m² | 118 m² | +42 m² +55% | 2026 |
|---|
| 53, Cranleigh Gardens485 m away | 57 m² | 99 m² | +42 m² +74% | 2020 |
|---|
| 42, Masefield Avenue821 m away | 95 m² | 137 m² | +42 m² +44% | 2019 |
|---|
| 34, Telford Way654 m away | 54 m² | 96 m² | +42 m² +78% | 2015 |
|---|
| 33, Wallis Road849 m away | 43 m² | 85 m² | +42 m² +98% | 2014 |
|---|
| 4, Bycroft Road578 m away | 100 m² | 141 m² | +41 m² +41% | 2025 |
|---|
| 37, Upper Town Road816 m away | 80 m² | 121 m² | +41 m² +51% | 2022 |
|---|
| 31, St Ursula Road468 m away | 80 m² | 121 m² | +41 m² +51% | 2016 |
|---|
| 27, Norman Avenue946 m away | 70 m² | 111 m² | +41 m² +59% | 2015 |
|---|
| 22, Neal Avenue795 m away | 35 m² | 75 m² | +40 m² +114% | 2024 |
|---|
| 144, Lady Margaret Road642 m away | 105 m² | 145 m² | +40 m² +38% | 2021 |
|---|
| 56, Braund Avenue867 m away | 96 m² | 135 m² | +39 m² +41% | 2025 |
|---|
| 8, Stratton Gardens339 m away | 73 m² | 112 m² | +39 m² +53% | 2023 |
|---|
| 2, Hillside Road710 m away | 80 m² | 119 m² | +39 m² +49% | 2015 |
|---|
| 13, Burndell Way921 m away | 70 m² | 109 m² | +39 m² +56% | 2013 |
|---|
| 5, East Avenue863 m away | 67 m² | 105 m² | +38 m² +57% | 2024 |
|---|
| 107, Dane Road907 m away | 103 m² | 141 m² | +38 m² +37% | 2020 |
|---|
| 92, North Road955 m away | 129 m² | 166 m² | +37 m² +29% | 2025 |
|---|
| 97, Lovell Road774 m away | 117 m² | 154 m² | +37 m² +32% | 2024 |
|---|
| 5, Sunnycroft Road566 m away | 73 m² | 110 m² | +37 m² +51% | 2023 |
|---|
| 26, Shackleton Road972 m away | 137 m² | 174 m² | +37 m² +27% | 2020 |
|---|
| 252, Allenby Road752 m away | 28 m² | 65 m² | +37 m² +132% | 2014 |
|---|
| 45, Mount Avenue664 m away | 82 m² | 118 m² | +36 m² +44% | 2024 |
|---|
| 31, Patching Way821 m away | 99 m² | 135 m² | +36 m² +36% | 2016 |
|---|
| Flat 27, Harborough House, Taywood Road949 m away | 42 m² | 77 m² | +35 m² +83% | 2026 |
|---|
| 36, Swan Road909 m away | 100 m² | 135 m² | +35 m² +35% | 2025 |
|---|
| 17a, Waxlow Crescent494 m away | 77 m² | 112 m² | +35 m² +45% | 2020 |
|---|
| 195, Allenby Road640 m away | 78 m² | 112 m² | +34 m² +44% | 2026 |
|---|
| 40, Telford Way654 m away | 60 m² | 94 m² | +34 m² +57% | 2015 |
|---|
| 51, Acer Avenue818 m away | 27 m² | 61 m² | +34 m² +126% | 2013 |
|---|
| 46, West Avenue867 m away | 97 m² | 131 m² | +34 m² +35% | 2013 |
|---|
| 205, North Road749 m away | 68 m² | 101 m² | +33 m² +49% | 2026 |
|---|
| 8, Mount Avenue664 m away | 103 m² | 136 m² | +33 m² +32% | 2025 |
|---|
| 181, Ashford Avenue980 m away | 25 m² | 58 m² | +33 m² +132% | 2021 |
|---|
| 22, Durdans Road503 m away | 85 m² | 118 m² | +33 m² +39% | 2019 |
|---|
| 24, Shelley Crescent643 m away | 80 m² | 113 m² | +33 m² +41% | 2019 |
|---|
| 35, Lawson Road592 m away | 52 m² | 85 m² | +33 m² +63% | 2018 |
|---|
| 1, Turing Court, Lovell Road822 m away | 51 m² | 84 m² | +33 m² +65% | 2017 |
|---|
| 297, Lady Margaret Road42 m away | 153 m² | 186 m² | +33 m² +22% | 2014 |
|---|
| 10, Upper Town Road920 m away | 83 m² | 115 m² | +32 m² +39% | 2018 |
|---|
| 14, Masefield Avenue927 m away | 90 m² | 122 m² | +32 m² +36% | 2015 |
|---|
| 5, Kennett Drive699 m away | 66 m² | 97 m² | +31 m² +47% | 2025 |
|---|
| 12, Derwent Road253 m away | 87 m² | 118 m² | +31 m² +36% | 2024 |
|---|
| 44, Braund Avenue867 m away | 88 m² | 119 m² | +31 m² +35% | 2021 |
|---|
| 78, Frensham Close858 m away | 50 m² | 81 m² | +31 m² +62% | 2019 |
|---|
| 1a, Cornwall Avenue533 m away | 38 m² | 69 m² | +31 m² +82% | 2009 |
|---|
| 78, Braund Avenue801 m away | 79 m² | 109 m² | +30 m² +38% | 2026 |
|---|
| 18, Upper Town Road920 m away | 77 m² | 107 m² | +30 m² +39% | 2022 |
|---|
| 189, North Road749 m away | 93 m² | 123 m² | +30 m² +32% | 2021 |
|---|
| 222a, Allenby Road752 m away | 96 m² | 126 m² | +30 m² +31% | 2015 |
|---|
| 71, Carlyle Avenue734 m away | 68 m² | 97 m² | +29 m² +43% | 2022 |
|---|
| 2, Mornington Road833 m away | 101 m² | 130 m² | +29 m² +29% | 2022 |
|---|
| 102, Lovell Road774 m away | 88 m² | 117 m² | +29 m² +33% | 2014 |
|---|
| 187, Allenby Road640 m away | 68 m² | 96 m² | +28 m² +41% | 2021 |
|---|
| 149, Kings Avenue652 m away | 116 m² | 144 m² | +28 m² +24% | 2021 |
|---|
| 7, Hillside Road710 m away | 64 m² | 92 m² | +28 m² +44% | 2013 |
|---|
| 143, Northcote Avenue846 m away | 92 m² | 120 m² | +28 m² +30% | 2013 |
|---|
| 15, Braund Avenue984 m away | 77 m² | 104 m² | +27 m² +35% | 2025 |
|---|
| 141, Ashford Avenue980 m away | 56 m² | 83 m² | +27 m² +48% | 2024 |
|---|
| 76, Lovell Road774 m away | 104 m² | 131 m² | +27 m² +26% | 2022 |
|---|
| 5, Chirk Close876 m away | 140 m² | 167 m² | +27 m² +19% | 2022 |
|---|
| 42, Allendale Avenue382 m away | 63 m² | 90 m² | +27 m² +43% | 2021 |
|---|
| 251, Lady Margaret Road265 m away | 30 m² | 56 m² | +26 m² +87% | 2026 |
|---|
| 53, Hurley Road844 m away | 85 m² | 111 m² | +26 m² +31% | 2025 |
|---|
| 21, Viking Road877 m away | 81 m² | 107 m² | +26 m² +32% | 2024 |
|---|
| 109, Northcote Avenue951 m away | 85 m² | 111 m² | +26 m² +31% | 2024 |
|---|
| 43, Verulam Road920 m away | 88 m² | 114 m² | +26 m² +30% | 2023 |
|---|
| 18, Mount Avenue664 m away | 91 m² | 117 m² | +26 m² +29% | 2020 |
|---|
| 55, Rutland Road371 m away | 61 m² | 87 m² | +26 m² +43% | 2018 |
|---|
| 15, St Stephens Close264 m away | 71 m² | 97 m² | +26 m² +37% | 2015 |
|---|
| 55, Wallis Road849 m away | 59 m² | 85 m² | +26 m² +44% | 2014 |
|---|
| 29, Rutland Road277 m away | 77 m² | 102 m² | +25 m² +32% | 2025 |
|---|
| 1, Maple Grove345 m away | 68 m² | 93 m² | +25 m² +37% | 2025 |
|---|
| 21, Braunston Drive954 m away | 81 m² | 106 m² | +25 m² +31% | 2025 |
|---|
| 20, Telford Way654 m away | 61 m² | 86 m² | +25 m² +41% | 2019 |
|---|
| 34, Coraline Close958 m away | 52 m² | 77 m² | +25 m² +48% | 2019 |
|---|
| 194, Kings Avenue652 m away | 61 m² | 86 m² | +25 m² +41% | 2010 |
|---|
| 9, Laburnum Grove466 m away | 78 m² | 102 m² | +24 m² +31% | 2025 |
|---|
| 126, Rutland Road540 m away | 53 m² | 77 m² | +24 m² +45% | 2024 |
|---|
| 439, Lady Margaret Road565 m away | 107 m² | 131 m² | +24 m² +22% | 2024 |
|---|
| 16, Sunnycroft Road566 m away | 87 m² | 111 m² | +24 m² +28% | 2024 |
|---|
| 14, Barbican Road982 m away | 45 m² | 69 m² | +24 m² +53% | 2024 |
|---|
| 19, Adrienne Avenue909 m away | 75 m² | 99 m² | +24 m² +32% | 2021 |
|---|
| Flat 39, Harborough House, Taywood Road949 m away | 39 m² | 63 m² | +24 m² +62% | 2019 |
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| 119, Dormers Wells Lane982 m away | 77 m² | 101 m² | +24 m² +31% | 2019 |
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| 308, Allenby Road750 m away | 85 m² | 109 m² | +24 m² +28% | 2016 |
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| 15, Purcell Road865 m away | 111 m² | 134 m² | +23 m² +21% | 2025 |
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| 37, Shackleton Road965 m away | 130 m² | 153 m² | +23 m² +18% | 2025 |
|---|
| 396, Lady Margaret Road496 m away | 127 m² | 150 m² | +23 m² +18% | 2022 |
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| 4, Frensham Close824 m away | 34 m² | 57 m² | +23 m² +68% | 2021 |
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| 31, Frensham Close841 m away | 56 m² | 79 m² | +23 m² +41% | 2020 |
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| 32, Shelley Crescent643 m away | 42 m² | 65 m² | +23 m² +55% | 2019 |
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| 427, Lady Margaret Road565 m away | 146 m² | 169 m² | +23 m² +16% | 2017 |
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| 118, Glencoe Road672 m away | 46 m² | 69 m² | +23 m² +50% | 2016 |
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| 102, Rutland Road442 m away | 22 m² | 45 m² | +23 m² +105% | 2014 |
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| 312, Lady Margaret Road0 m away | 88 m² | 110 m² | +22 m² +25% | 2025 |
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| 175, Westbury Avenue675 m away | 76 m² | 98 m² | +22 m² +29% | 2024 |
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| 67, Allenby Road597 m away | 110 m² | 132 m² | +22 m² +20% | 2022 |
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| 238, Allenby Road752 m away | 78 m² | 100 m² | +22 m² +28% | 2021 |
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| 17, Westlake Close902 m away | 65 m² | 87 m² | +22 m² +34% | 2020 |
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| 47, Patching Way821 m away | 74 m² | 96 m² | +22 m² +30% | 2016 |
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| 5, Hart Grove420 m away | 63 m² | 85 m² | +22 m² +35% | 2013 |
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| 8, Spikes Bridge Road788 m away | 77 m² | 99 m² | +22 m² +29% | 2013 |
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| 32, Spikes Bridge Road788 m away | 98 m² | 119 m² | +21 m² +21% | 2026 |
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| 266, Allenby Road750 m away | 95 m² | 116 m² | +21 m² +22% | 2024 |
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| 11, Wepham Close970 m away | 88 m² | 109 m² | +21 m² +24% | 2021 |
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| 4, Cressage Close653 m away | 63 m² | 84 m² | +21 m² +33% | 2020 |
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| 28, Hillside Road710 m away | 83 m² | 104 m² | +21 m² +25% | 2015 |
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| 17, Bassett Way919 m away | 80 m² | 101 m² | +21 m² +26% | 2014 |
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| 23, Blisworth Close893 m away | 59 m² | 79 m² | +20 m² +34% | 2025 |
|---|
| 1, Allenby Road675 m away | 76 m² | 96 m² | +20 m² +26% | 2022 |
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| 17, Enmore Road831 m away | 80 m² | 100 m² | +20 m² +25% | 2022 |
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| 3, Allendale Avenue532 m away | 86 m² | 106 m² | +20 m² +23% | 2019 |
|---|
| 25, Airdrie Close615 m away | 59 m² | 79 m² | +20 m² +34% | 2015 |
|---|
| 141, Glencoe Road672 m away | 82 m² | 102 m² | +20 m² +24% | 2015 |
|---|
| 9, Maple Grove345 m away | 83 m² | 103 m² | +20 m² +24% | 2014 |
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| 39, Pikestone Close866 m away | 60 m² | 80 m² | +20 m² +33% | 2014 |
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| 18, Burndell Way921 m away | 55 m² | 75 m² | +20 m² +36% | 2014 |
|---|
| 67, Ascot Gardens272 m away | 61 m² | 80 m² | +19 m² +31% | 2026 |
|---|
| 133, Ascot Gardens424 m away | 53 m² | 72 m² | +19 m² +36% | 2025 |
|---|
| 34, Sunnycroft Road566 m away | 71 m² | 90 m² | +19 m² +27% | 2022 |
|---|
| 2, Lynwood Gardens184 m away | 71 m² | 90 m² | +19 m² +27% | 2020 |
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| 1, Sunnycroft Road566 m away | 86 m² | 105 m² | +19 m² +22% | 2016 |
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| 142, Northcote Avenue846 m away | 110 m² | 129 m² | +19 m² +17% | 2014 |
|---|
| 3, Telford Way654 m away | 59 m² | 77 m² | +18 m² +31% | 2026 |
|---|
| 81, Telford Way654 m away | 39 m² | 57 m² | +18 m² +46% | 2026 |
|---|
| 96, Somerset Road374 m away | 99 m² | 117 m² | +18 m² +18% | 2025 |
|---|
| 8, Somerset Road150 m away | 100 m² | 118 m² | +18 m² +18% | 2024 |
|---|
| 86, Rutland Road442 m away | 61 m² | 79 m² | +18 m² +30% | 2023 |
|---|
| 24, Telford Way654 m away | 60 m² | 78 m² | +18 m² +30% | 2019 |
|---|
| 109, Burns Avenue989 m away | 93 m² | 111 m² | +18 m² +19% | 2016 |
|---|
| 137, Glencoe Road672 m away | 114 m² | 132 m² | +18 m² +16% | 2015 |
|---|
| 14, Hurley Road848 m away | 96 m² | 114 m² | +18 m² +19% | 2015 |
|---|
| 12a, Burns Avenue793 m away | 96 m² | 114 m² | +18 m² +19% | 2014 |
|---|
| 2, Selby Gardens617 m away | 74 m² | 91 m² | +17 m² +23% | 2026 |
|---|
| 5, Braund Avenue984 m away | 80 m² | 97 m² | +17 m² +21% | 2024 |
|---|
| 23, St Peters Road368 m away | 96 m² | 113 m² | +17 m² +18% | 2023 |
|---|
| 21, Brazier Crescent672 m away | 57 m² | 74 m² | +17 m² +30% | 2018 |
|---|
| 39, Patching Way821 m away | 66 m² | 83 m² | +17 m² +26% | 2016 |
|---|
| 424, Lady Margaret Road643 m away | 87 m² | 104 m² | +17 m² +20% | 2015 |
|---|
| 6, Glenorchy Close523 m away | 90 m² | 107 m² | +17 m² +19% | 2014 |
|---|
| 32, Braunston Drive954 m away | 59 m² | 76 m² | +17 m² +29% | 2014 |
|---|
| 79, Telford Way654 m away | 37 m² | 53 m² | +16 m² +43% | 2026 |
|---|
| 209, Allenby Road640 m away | 70 m² | 86 m² | +16 m² +23% | 2025 |
|---|
| 32, Devonshire Road417 m away | 77 m² | 93 m² | +16 m² +21% | 2024 |
|---|
| 199a, Lady Margaret Road417 m away | 84 m² | 100 m² | +16 m² +19% | 2024 |
|---|
| 187, Somerset Road653 m away | 67 m² | 83 m² | +16 m² +24% | 2023 |
|---|
| 16, Binstead Close866 m away | 87 m² | 103 m² | +16 m² +18% | 2023 |
|---|
| 334, Allenby Road789 m away | 62 m² | 78 m² | +16 m² +26% | 2022 |
|---|
| 63, Greenford Avenue842 m away | 42 m² | 58 m² | +16 m² +38% | 2022 |
|---|
| 96, Dormers Wells Lane982 m away | 59 m² | 75 m² | +16 m² +27% | 2021 |
|---|
| 11, Devonshire Road417 m away | 48 m² | 64 m² | +16 m² +33% | 2019 |
|---|
| 46, Carlyle Avenue724 m away | 89 m² | 105 m² | +16 m² +18% | 2019 |
|---|
| 155, Ashford Avenue980 m away | 56 m² | 72 m² | +16 m² +29% | 2016 |
|---|
| 4, Westlake Close902 m away | 61 m² | 77 m² | +16 m² +26% | 2015 |
|---|
| 19, Wallis Road849 m away | 58 m² | 74 m² | +16 m² +28% | 2014 |
|---|
| 114, Evelyn Grove286 m away | 82 m² | 98 m² | +16 m² +20% | 2013 |
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