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 HA3 6JL
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 |
|---|---|---|---|---|
| 3, Bellfield Avenue386 m away | 108 m² | 251 m² | +143 m² +132% | 2014 |
| 17, West Drive501 m away | 157 m² | 295 m² | +138 m² +88% | 2017 |
| 216, Uxbridge Road458 m away | 118 m² | 242 m² | +124 m² +105% | 2022 |
| 72, Elms Road847 m away | 98 m² | 222 m² | +124 m² +127% | 2012 |
| 12, Kelvin Crescent730 m away | 110 m² | 233 m² | +123 m² +112% | 2015 |
| 4, Bellfield Avenue395 m away | 181 m² | 293 m² | +112 m² +62% | 2025 |
| 32, Elms Road610 m away | 154 m² | 263 m² | +109 m² +71% | 2023 |
| 98, Elms Road964 m away | 79 m² | 178 m² | +99 m² +125% | 2025 |
| 179, Uxbridge Road408 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.
| 81 m² |
| 180 m² |
| +99 m² +122% |
| 2020 |
| 37, Chestnut Drive945 m away | 68 m² | 160 m² | +92 m² +135% | 2011 |
|---|
| 7, Bellfield Avenue386 m away | 273 m² | 360 m² | +87 m² +32% | 2024 |
|---|
| 9, Bellfield Avenue386 m away | 83 m² | 167 m² | +84 m² +101% | 2010 |
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| 6, Mead Close574 m away | 64 m² | 147 m² | +83 m² +130% | 2024 |
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| 113, College Hill Road879 m away | 134 m² | 216 m² | +82 m² +61% | 2017 |
|---|
| 32, The Lawns892 m away | 97 m² | 178 m² | +81 m² +84% | 2013 |
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| 7, West Drive501 m away | 177 m² | 255 m² | +78 m² +44% | 2026 |
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| 31, Weald Lane736 m away | 99 m² | 177 m² | +78 m² +79% | 2026 |
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| 12, Boxtree Road350 m away | 97 m² | 173 m² | +76 m² +78% | 2023 |
|---|
| 92, College Hill Road859 m away | 85 m² | 158 m² | +73 m² +86% | 2022 |
|---|
| 11, Bellfield Avenue386 m away | 139 m² | 210 m² | +71 m² +51% | 2019 |
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| 3, Warburton Close573 m away | 136 m² | 205 m² | +69 m² +51% | 2026 |
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| 16, The Meadow Way942 m away | 83 m² | 152 m² | +69 m² +83% | 2025 |
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| 34, Rowlands Avenue980 m away | 143 m² | 212 m² | +69 m² +48% | 2022 |
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| 22, Monro Gardens570 m away | 108 m² | 175 m² | +67 m² +62% | 2022 |
|---|
| 31, Hampden Road954 m away | 65 m² | 131 m² | +66 m² +102% | 2013 |
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| 29, Sefton Avenue707 m away | 79 m² | 144 m² | +65 m² +82% | 2026 |
|---|
| 35, The Lawns892 m away | 97 m² | 162 m² | +65 m² +67% | 2015 |
|---|
| 11, The Lawns938 m away | 101 m² | 165 m² | +64 m² +63% | 2022 |
|---|
| 9, Whitefriars Drive956 m away | 138 m² | 202 m² | +64 m² +46% | 2021 |
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| Newbridge, Brookshill738 m away | 154 m² | 215 m² | +61 m² +40% | 2025 |
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| 5, Ufford Close668 m away | 82 m² | 143 m² | +61 m² +74% | 2015 |
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| 3, Barchester Road849 m away | 81 m² | 140 m² | +59 m² +73% | 2022 |
|---|
| 21, Whitegate Gardens951 m away | 82 m² | 141 m² | +59 m² +72% | 2020 |
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| 28, Elms Road610 m away | 177 m² | 234 m² | +57 m² +32% | 2024 |
|---|
| 40, College Avenue824 m away | 123 m² | 179 m² | +56 m² +46% | 2026 |
|---|
| 15, Boxtree Lane149 m away | 76 m² | 132 m² | +56 m² +74% | 2023 |
|---|
| 162, College Hill Road721 m away | 105 m² | 160 m² | +55 m² +52% | 2025 |
|---|
| 54, Windsor Road568 m away | 81 m² | 135 m² | +54 m² +67% | 2026 |
|---|
| 37, Weighton Road412 m away | 98 m² | 150 m² | +52 m² +53% | 2024 |
|---|
| 63, College Road652 m away | 166 m² | 218 m² | +52 m² +31% | 2024 |
|---|
| 95, College Hill Road879 m away | 116 m² | 168 m² | +52 m² +45% | 2019 |
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| 56, Sefton Avenue668 m away | 142 m² | 194 m² | +52 m² +37% | 2010 |
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| 77, Hampden Road738 m away | 63 m² | 114 m² | +51 m² +81% | 2025 |
|---|
| 15, Park Rise840 m away | 114 m² | 165 m² | +51 m² +45% | 2022 |
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| 49, Oxhey Lane866 m away | 86 m² | 137 m² | +51 m² +59% | 2021 |
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| 52, Toorack Road960 m away | 87 m² | 137 m² | +50 m² +57% | 2025 |
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| 25, Whitegate Gardens951 m away | 122 m² | 171 m² | +49 m² +40% | 2026 |
|---|
| 2, Barchester Road849 m away | 85 m² | 133 m² | +48 m² +56% | 2026 |
|---|
| 38, The Lawns892 m away | 97 m² | 145 m² | +48 m² +49% | 2025 |
|---|
| 48, Toorack Road960 m away | 37 m² | 85 m² | +48 m² +130% | 2019 |
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| 1, Stamford Close672 m away | 140 m² | 188 m² | +48 m² +34% | 2015 |
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| 8, Silver Close66 m away | 81 m² | 128 m² | +47 m² +58% | 2026 |
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| 163, Long Elmes517 m away | 64 m² | 111 m² | +47 m² +73% | 2016 |
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| 114, College Road678 m away | 243 m² | 290 m² | +47 m² +19% | 2014 |
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| 11, Park Rise840 m away | 90 m² | 136 m² | +46 m² +51% | 2020 |
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| 25, Wynchgate844 m away | 77 m² | 122 m² | +45 m² +58% | 2013 |
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| 88, Toorack Road960 m away | 87 m² | 131 m² | +44 m² +51% | 2024 |
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| 188, Uxbridge Road314 m away | 125 m² | 169 m² | +44 m² +35% | 2014 |
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| 28, Whitegate Gardens911 m away | 95 m² | 139 m² | +44 m² +46% | 2013 |
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| 20, West Drive456 m away | 190 m² | 233 m² | +43 m² +23% | 2012 |
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| 65, Long Elmes485 m away | 76 m² | 118 m² | +42 m² +55% | 2026 |
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| 15, Farmstead Road803 m away | 100 m² | 142 m² | +42 m² +42% | 2024 |
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| 210, High Road960 m away | 111 m² | 152 m² | +41 m² +37% | 2023 |
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| 100, Courtenay Avenue555 m away | 69 m² | 110 m² | +41 m² +59% | 2020 |
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| 90, Sefton Avenue668 m away | 103 m² | 144 m² | +41 m² +40% | 2019 |
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| The Gate House, 212, Uxbridge Road458 m away | 91 m² | 132 m² | +41 m² +45% | 2015 |
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| 483, High Road433 m away | 94 m² | 134 m² | +40 m² +43% | 2025 |
|---|
| 5, Kelvin Crescent730 m away | 113 m² | 153 m² | +40 m² +35% | 2025 |
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| 71, Hutton Lane190 m away | 89 m² | 128 m² | +39 m² +44% | 2023 |
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| 186, Uxbridge Road314 m away | 83 m² | 122 m² | +39 m² +47% | 2020 |
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| 394, High Road502 m away | 136 m² | 175 m² | +39 m² +29% | 2019 |
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| 17, Charlwood Close832 m away | 28 m² | 67 m² | +39 m² +139% | 2011 |
|---|
| 2, Bancroft Road848 m away | 47 m² | 86 m² | +39 m² +83% | 2011 |
|---|
| 143, Courtenay Avenue623 m away | 117 m² | 155 m² | +38 m² +32% | 2026 |
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| 64, College Road678 m away | 70 m² | 108 m² | +38 m² +54% | 2026 |
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| 21, Park Crescent845 m away | 136 m² | 173 m² | +37 m² +27% | 2015 |
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| 4, Ufford Close668 m away | 91 m² | 127 m² | +36 m² +40% | 2026 |
|---|
| 51, Weighton Road412 m away | 103 m² | 139 m² | +36 m² +35% | 2020 |
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| 97, Sefton Avenue617 m away | 29 m² | 65 m² | +36 m² +124% | 2017 |
|---|
| 8, Courtenay Avenue744 m away | 86 m² | 121 m² | +35 m² +41% | 2023 |
|---|
| 5, All Saints Mews896 m away | 161 m² | 195 m² | +34 m² +21% | 2023 |
|---|
| 246, Long Elmes862 m away | 79 m² | 113 m² | +34 m² +43% | 2022 |
|---|
| 83, The Meadow Way955 m away | 79 m² | 113 m² | +34 m² +43% | 2021 |
|---|
| 250a, High Road769 m away | 41 m² | 74 m² | +33 m² +80% | 2018 |
|---|
| 106, Carmelite Road987 m away | 109 m² | 141 m² | +32 m² +29% | 2026 |
|---|
| 21a, Derby Avenue608 m away | 24 m² | 56 m² | +32 m² +133% | 2021 |
|---|
| 9, Belsize Road0 m away | 65 m² | 97 m² | +32 m² +49% | 2020 |
|---|
| 61, Boxtree Lane203 m away | 78 m² | 109 m² | +31 m² +40% | 2025 |
|---|
| 17, Mepham Gardens314 m away | 84 m² | 115 m² | +31 m² +37% | 2020 |
|---|
| 47, Belsize Road0 m away | 69 m² | 100 m² | +31 m² +45% | 2017 |
|---|
| Eastleigh, Headstone Lane932 m away | 91 m² | 122 m² | +31 m² +34% | 2015 |
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| 33, Boxtree Lane128 m away | 61 m² | 91 m² | +30 m² +49% | 2026 |
|---|
| 1, Enderley Road822 m away | 86 m² | 116 m² | +30 m² +35% | 2024 |
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| 9a, Barchester Road849 m away | 45 m² | 75 m² | +30 m² +67% | 2020 |
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| 20, Maricas Avenue318 m away | 105 m² | 134 m² | +29 m² +28% | 2026 |
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| 16, Enderley Road822 m away | 91 m² | 120 m² | +29 m² +32% | 2025 |
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| 4, Carmelite Close689 m away | 53 m² | 82 m² | +29 m² +55% | 2024 |
|---|
| Flat 6, Parkview Court, 1, Elms Road447 m away | 39 m² | 68 m² | +29 m² +74% | 2020 |
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| 1, Hitherwell Drive351 m away | 63 m² | 91 m² | +28 m² +44% | 2026 |
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| 37, Whitegate Gardens951 m away | 78 m² | 105 m² | +27 m² +35% | 2026 |
|---|
| 16, West Drive456 m away | 165 m² | 192 m² | +27 m² +16% | 2025 |
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| 20, Long Elmes541 m away | 90 m² | 117 m² | +27 m² +30% | 2025 |
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| 53, Whitegate Gardens951 m away | 82 m² | 109 m² | +27 m² +33% | 2022 |
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| 2, Mead Close574 m away | 65 m² | 91 m² | +26 m² +40% | 2023 |
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| 117, Hampden Road738 m away | 65 m² | 91 m² | +26 m² +40% | 2022 |
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| 511, High Road433 m away | 154 m² | 180 m² | +26 m² +17% | 2019 |
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| 155, Courtenay Avenue623 m away | 98 m² | 124 m² | +26 m² +27% | 2014 |
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| 18, Monro Gardens570 m away | 106 m² | 131 m² | +25 m² +24% | 2025 |
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| 139, Uxbridge Road733 m away | 101 m² | 126 m² | +25 m² +25% | 2015 |
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| 38, Belsize Road34 m away | 80 m² | 105 m² | +25 m² +31% | 2011 |
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| 65, Boxtree Lane203 m away | 87 m² | 111 m² | +24 m² +28% | 2024 |
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| 75, Toorack Road996 m away | 71 m² | 95 m² | +24 m² +34% | 2024 |
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| 10, Boxtree Road350 m away | 94 m² | 118 m² | +24 m² +26% | 2023 |
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| 96, Long Elmes495 m away | 58 m² | 82 m² | +24 m² +41% | 2020 |
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| Mcnorma, Headstone Lane932 m away | 79 m² | 103 m² | +24 m² +30% | 2019 |
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| 133, Long Elmes481 m away | 77 m² | 101 m² | +24 m² +31% | 2018 |
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| 57, Weighton Road412 m away | 115 m² | 139 m² | +24 m² +21% | 2015 |
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| 27, Belsize Road0 m away | 62 m² | 85 m² | +23 m² +37% | 2025 |
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| 50, Fontwell Close627 m away | 78 m² | 101 m² | +23 m² +29% | 2025 |
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| 54, Clewer Crescent645 m away | 73 m² | 96 m² | +23 m² +32% | 2025 |
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| 34, Sefton Avenue726 m away | 63 m² | 86 m² | +23 m² +37% | 2021 |
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| 4, Barchester Road849 m away | 81 m² | 104 m² | +23 m² +28% | 2018 |
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| 29, Kynaston Close356 m away | 132 m² | 154 m² | +22 m² +17% | 2026 |
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| 73, Belsize Road0 m away | 68 m² | 90 m² | +22 m² +32% | 2023 |
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| 57, Tillotson Road663 m away | 81 m² | 103 m² | +22 m² +27% | 2017 |
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| 9, Derby Avenue608 m away | 79 m² | 101 m² | +22 m² +28% | 2016 |
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| 81, Park Crescent794 m away | 76 m² | 97 m² | +21 m² +28% | 2025 |
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| 4, Clewer Crescent645 m away | 74 m² | 95 m² | +21 m² +28% | 2024 |
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| 9, Silver Close66 m away | 110 m² | 131 m² | +21 m² +19% | 2021 |
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| 8, Derby Avenue608 m away | 39 m² | 60 m² | +21 m² +54% | 2019 |
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| 19, Windsor Road677 m away | 79 m² | 100 m² | +21 m² +27% | 2019 |
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| 35, Whittlesea Road568 m away | 74 m² | 94 m² | +20 m² +27% | 2026 |
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| 24, Hutton Lane110 m away | 83 m² | 103 m² | +20 m² +24% | 2024 |
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| 2, Colmer Place221 m away | 71 m² | 91 m² | +20 m² +28% | 2019 |
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| 47, Weighton Road412 m away | 92 m² | 112 m² | +20 m² +22% | 2016 |
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| 4, Carrington Square319 m away | 68 m² | 88 m² | +20 m² +29% | 2015 |
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| 86, Belsize Road34 m away | 92 m² | 111 m² | +19 m² +21% | 2026 |
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| 75, Windsor Road677 m away | 64 m² | 83 m² | +19 m² +30% | 2017 |
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| 85, Courtenay Avenue623 m away | 74 m² | 93 m² | +19 m² +26% | 2014 |
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| 291, Headstone Lane887 m away | 75 m² | 94 m² | +19 m² +25% | 2014 |
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| 124, Carmelite Road805 m away | 82 m² | 101 m² | +19 m² +23% | 2013 |
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| 50, Kynaston Wood251 m away | 83 m² | 101 m² | +18 m² +22% | 2026 |
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| 106, Hampden Road707 m away | 92 m² | 110 m² | +18 m² +20% | 2026 |
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| 331, High Road658 m away | 89 m² | 107 m² | +18 m² +20% | 2024 |
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| 55a, College Road652 m away | 39 m² | 57 m² | +18 m² +46% | 2022 |
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| 8, Mullion Close959 m away | 54 m² | 72 m² | +18 m² +33% | 2021 |
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| 1, West Drive Gardens319 m away | 115 m² | 133 m² | +18 m² +16% | 2020 |
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| 18, Belsize Road34 m away | 59 m² | 77 m² | +18 m² +31% | 2018 |
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| 17, College Avenue800 m away | 103 m² | 121 m² | +18 m² +17% | 2017 |
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| 36a, Whitefriars Drive989 m away | 42 m² | 60 m² | +18 m² +43% | 2015 |
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| 65, Courtenay Avenue623 m away | 85 m² | 103 m² | +18 m² +21% | 2014 |
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| 238, High Road769 m away | 65 m² | 83 m² | +18 m² +28% | 2014 |
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| 191, High Road894 m away | 74 m² | 91 m² | +17 m² +23% | 2026 |
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| 58, Long Elmes541 m away | 72 m² | 89 m² | +17 m² +24% | 2024 |
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| 54, Boxtree Road175 m away | 97 m² | 114 m² | +17 m² +18% | 2023 |
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| 7, Mead Close574 m away | 44 m² | 61 m² | +17 m² +39% | 2021 |
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| 215, Carmelite Road642 m away | 65 m² | 82 m² | +17 m² +26% | 2021 |
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| 136, Weald Lane856 m away | 61 m² | 78 m² | +17 m² +28% | 2021 |
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| 5, Blackwell Close218 m away | 95 m² | 112 m² | +17 m² +18% | 2017 |
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| 135, Courtenay Avenue623 m away | 65 m² | 82 m² | +17 m² +26% | 2014 |
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| 6, Courtenay Gardens918 m away | 54 m² | 70 m² | +16 m² +30% | 2024 |
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| 7, Courtenay Gardens918 m away | 68 m² | 84 m² | +16 m² +24% | 2024 |
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| 73, Boxtree Lane203 m away | 62 m² | 78 m² | +16 m² +26% | 2021 |
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| 238a, High Road769 m away | 64 m² | 80 m² | +16 m² +25% | 2021 |
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| 34, Windsor Road669 m away | 76 m² | 92 m² | +16 m² +21% | 2020 |
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| 51, Belsize Road0 m away | 67 m² | 83 m² | +16 m² +24% | 2019 |
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| Maison Alfort, 251, High Road737 m away | 73 m² | 89 m² | +16 m² +22% | 2018 |
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| Flat 13, Azure, 463, High Road463 m away | 43 m² | 59 m² | +16 m² +37% | 2015 |
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| 59, Whitegate Gardens951 m away | 83 m² | 99 m² | +16 m² +19% | 2015 |
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| 39, Hitherwell Drive351 m away | 93 m² | 108 m² | +15 m² +16% | 2025 |
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| 23, Stafford Road345 m away | 86 m² | 101 m² | +15 m² +17% | 2024 |
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| 10, Chicheley Gardens466 m away | 83 m² | 98 m² | +15 m² +18% | 2024 |
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| 92, Toorack Road960 m away | 85 m² | 100 m² | +15 m² +18% | 2023 |
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| 5, Farmstead Road803 m away | 80 m² | 95 m² | +15 m² +19% | 2022 |
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| Flat 12, Orchid Court, 286, High Road706 m away | 72 m² | 87 m² | +15 m² +21% | 2020 |
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| 387, High Road558 m away | 96 m² | 111 m² | +15 m² +16% | 2019 |
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| 42, Tillotson Road688 m away | 77 m² | 92 m² | +15 m² +19% | 2018 |
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| 102, Hampden Road707 m away | 62 m² | 77 m² | +15 m² +24% | 2017 |
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