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 BN1 5HB
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 |
|---|---|---|---|---|
| 59, Hill Brow657 m away | 256 m² | 602 m² | +346 m² +135% | 2024 |
| 7, Hill Brow826 m away | 220 m² | 514 m² | +294 m² +134% | 2026 |
| 9, Hill Brow826 m away | 240 m² | 482 m² | +242 m² +101% | 2026 |
| 6, Dyke Close759 m away | 214 m² | 451 m² | +237 m² +111% | 2014 |
| 39, Green Ridge427 m away | 123 m² | 301 m² | +178 m² +145% | 2019 |
| 79, Wayland Avenue671 m away | 142 m² | 304 m² | +162 m² +114% | 2026 |
| 97, Wayland Avenue671 m away | 110 m² | 270 m² | +160 m² +145% | 2014 |
| 107, Wayland Avenue671 m away | 138 m² | 290 m² | +152 m² +110% | 2025 |
| 140, Valley Drive363 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.
| 307 m² |
| +145 m² +90% |
| 2025 |
| 71, Hill Brow657 m away | 199 m² | 343 m² | +144 m² +72% | 2024 |
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| 29, Brangwyn Drive836 m away | 134 m² | 276 m² | +142 m² +106% | 2022 |
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| 21, Hill Brow826 m away | 139 m² | 274 m² | +135 m² +97% | 2018 |
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| 87, Tongdean Lane515 m away | 140 m² | 268 m² | +128 m² +91% | 2019 |
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| 3, Shepherds Croft785 m away | 108 m² | 235 m² | +127 m² +118% | 2016 |
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| 24, Tongdean Rise624 m away | 116 m² | 242 m² | +126 m² +109% | 2017 |
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| 29, Brangwyn Avenue913 m away | 157 m² | 276 m² | +119 m² +76% | 2022 |
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| 51, Redhill Drive372 m away | 105 m² | 223 m² | +118 m² +112% | 2012 |
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| 93, Wayland Avenue671 m away | 139 m² | 255 m² | +116 m² +83% | 2020 |
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| 106, Woodland Drive831 m away | 159 m² | 273 m² | +114 m² +72% | 2012 |
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| 80, Dyke Road Avenue475 m away | 406 m² | 518 m² | +112 m² +28% | 2021 |
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| 85, Valley Drive352 m away | 72 m² | 180 m² | +108 m² +150% | 2022 |
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| 50, Hill Drive930 m away | 314 m² | 417 m² | +103 m² +33% | 2018 |
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| 4, Redhill Drive240 m away | 131 m² | 234 m² | +103 m² +79% | 2016 |
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| 109, Windmill Drive694 m away | 75 m² | 177 m² | +102 m² +136% | 2014 |
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| 19, Downside983 m away | 205 m² | 306 m² | +101 m² +49% | 2022 |
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| 19, Tongdean Rise624 m away | 120 m² | 221 m² | +101 m² +84% | 2017 |
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| 48, Hill Brow815 m away | 168 m² | 266 m² | +98 m² +58% | 2012 |
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| 4, Green Ridge391 m away | 74 m² | 171 m² | +97 m² +131% | 2015 |
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| 53, Dyke Road Avenue890 m away | 212 m² | 304 m² | +92 m² +43% | 2023 |
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| 4, Brangwyn Crescent923 m away | 141 m² | 232 m² | +91 m² +65% | 2018 |
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| 42, Dyke Road Avenue752 m away | 337 m² | 425 m² | +88 m² +26% | 2020 |
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| 54, Windmill Drive611 m away | 73 m² | 157 m² | +84 m² +115% | 2013 |
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| 74, Green Ridge226 m away | 112 m² | 195 m² | +83 m² +74% | 2026 |
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| 39, Westdene Drive57 m away | 78 m² | 159 m² | +81 m² +104% | 2015 |
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| 32, Highbank364 m away | 114 m² | 194 m² | +80 m² +70% | 2019 |
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| 37, Glen Rise221 m away | 81 m² | 160 m² | +79 m² +98% | 2025 |
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| 95, Green Ridge260 m away | 99 m² | 177 m² | +78 m² +79% | 2022 |
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| 2a, Colebrook Road670 m away | 95 m² | 173 m² | +78 m² +82% | 2014 |
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| 90, Wayland Avenue624 m away | 88 m² | 164 m² | +76 m² +86% | 2024 |
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| 49, Hillcrest317 m away | 69 m² | 145 m² | +76 m² +110% | 2017 |
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| 45, Hillcrest317 m away | 65 m² | 140 m² | +75 m² +115% | 2015 |
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| 16, Brangwyn Way959 m away | 195 m² | 269 m² | +74 m² +38% | 2022 |
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| 30, Brangwyn Drive875 m away | 134 m² | 207 m² | +73 m² +54% | 2026 |
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| 6, The Spinney888 m away | 268 m² | 341 m² | +73 m² +27% | 2026 |
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| 42, Hill Drive930 m away | 164 m² | 237 m² | +73 m² +45% | 2024 |
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| 45, Millcroft55 m away | 80 m² | 153 m² | +73 m² +91% | 2017 |
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| 67, Woodland Avenue973 m away | 99 m² | 171 m² | +72 m² +73% | 2024 |
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| 36, Green Ridge391 m away | 162 m² | 234 m² | +72 m² +44% | 2022 |
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| 58, Wayland Avenue624 m away | 115 m² | 187 m² | +72 m² +63% | 2022 |
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| 66, Valley Drive445 m away | 83 m² | 155 m² | +72 m² +87% | 2018 |
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| 81, Valley Drive352 m away | 92 m² | 164 m² | +72 m² +78% | 2016 |
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| 15, Hill Brow826 m away | 129 m² | 200 m² | +71 m² +55% | 2016 |
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| 14, Shepherds Croft785 m away | 113 m² | 184 m² | +71 m² +63% | 2014 |
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| 3, Deneside647 m away | 70 m² | 140 m² | +70 m² +100% | 2025 |
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| 148, Valley Drive363 m away | 113 m² | 183 m² | +70 m² +62% | 2020 |
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| 34, Hill Drive930 m away | 176 m² | 244 m² | +68 m² +39% | 2023 |
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| 48, Brangwyn Avenue943 m away | 130 m² | 197 m² | +67 m² +52% | 2021 |
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| 16, Mill Rise177 m away | 116 m² | 182 m² | +66 m² +57% | 2019 |
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| 9, Eldred Avenue730 m away | 136 m² | 201 m² | +65 m² +48% | 2026 |
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| Karibu, London Road987 m away | 162 m² | 227 m² | +65 m² +40% | 2025 |
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| 89, Tongdean Lane515 m away | 115 m² | 180 m² | +65 m² +57% | 2020 |
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| 11, Tongdean Rise624 m away | 127 m² | 191 m² | +64 m² +50% | 2026 |
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| 3, Green Ridge427 m away | 103 m² | 166 m² | +63 m² +61% | 2025 |
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| 33, Brangwyn Avenue913 m away | 110 m² | 173 m² | +63 m² +57% | 2019 |
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| 26, Millcroft0 m away | 77 m² | 140 m² | +63 m² +82% | 2018 |
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| 48, Bankside325 m away | 82 m² | 144 m² | +62 m² +76% | 2018 |
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| 70, Windmill Drive611 m away | 122 m² | 183 m² | +61 m² +50% | 2024 |
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| 6, Shepherds Croft785 m away | 160 m² | 221 m² | +61 m² +38% | 2022 |
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| 3, The Spinney888 m away | 161 m² | 221 m² | +60 m² +37% | 2024 |
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| 10, Redhill Drive240 m away | 147 m² | 207 m² | +60 m² +41% | 2023 |
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| 27, Eldred Avenue730 m away | 86 m² | 145 m² | +59 m² +69% | 2020 |
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| 32, Redhill Drive240 m away | 134 m² | 192 m² | +58 m² +43% | 2013 |
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| 130, Valley Drive352 m away | 167 m² | 224 m² | +57 m² +34% | 2025 |
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| 54, Green Ridge226 m away | 71 m² | 128 m² | +57 m² +80% | 2024 |
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| 54, Bramble Rise397 m away | 72 m² | 129 m² | +57 m² +79% | 2021 |
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| 94, Tongdean Lane515 m away | 208 m² | 263 m² | +55 m² +26% | 2025 |
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| 57, Millcroft182 m away | 114 m² | 169 m² | +55 m² +48% | 2021 |
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| 61, Brangwyn Drive836 m away | 145 m² | 199 m² | +54 m² +37% | 2026 |
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| 35, Glen Rise221 m away | 94 m² | 148 m² | +54 m² +57% | 2019 |
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| 15, Tongdean Rise624 m away | 76 m² | 130 m² | +54 m² +71% | 2017 |
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| 86, Wayland Avenue624 m away | 115 m² | 168 m² | +53 m² +46% | 2020 |
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| 9, Shepherds Croft785 m away | 88 m² | 141 m² | +53 m² +60% | 2017 |
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| 73, Eldred Avenue683 m away | 87 m² | 140 m² | +53 m² +61% | 2015 |
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| 14, Hillside Way484 m away | 129 m² | 181 m² | +52 m² +40% | 2024 |
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| 75, Redhill Drive372 m away | 112 m² | 164 m² | +52 m² +46% | 2023 |
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| 50, Brangwyn Drive875 m away | 103 m² | 155 m² | +52 m² +50% | 2016 |
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| Flat 28, Mandalay Court, London Road914 m away | 74 m² | 126 m² | +52 m² +70% | 2014 |
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| 58, Green Ridge226 m away | 80 m² | 131 m² | +51 m² +64% | 2015 |
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| 73, Valley Drive352 m away | 104 m² | 154 m² | +50 m² +48% | 2023 |
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| 51, Woodland Avenue973 m away | 135 m² | 184 m² | +49 m² +36% | 2026 |
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| 5, Downside639 m away | 106 m² | 155 m² | +49 m² +46% | 2022 |
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| 48, Millcroft182 m away | 90 m² | 139 m² | +49 m² +54% | 2017 |
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| 7, Hilltop470 m away | 263 m² | 312 m² | +49 m² +19% | 2015 |
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| 20, Whitethorn Drive446 m away | 178 m² | 226 m² | +48 m² +27% | 2026 |
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| 8, Colebrook Road670 m away | 215 m² | 263 m² | +48 m² +22% | 2024 |
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| 24, Mill Rise177 m away | 73 m² | 121 m² | +48 m² +66% | 2022 |
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| 49, Wayland Avenue671 m away | 112 m² | 160 m² | +48 m² +43% | 2022 |
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| 63, Brangwyn Drive836 m away | 102 m² | 150 m² | +48 m² +47% | 2020 |
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| 50, Barn Rise555 m away | 48 m² | 95 m² | +47 m² +98% | 2025 |
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| 121, Woodland Avenue973 m away | 101 m² | 148 m² | +47 m² +47% | 2023 |
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| 46, Redhill Drive372 m away | 112 m² | 159 m² | +47 m² +42% | 2015 |
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| 68, Green Ridge226 m away | 116 m² | 162 m² | +46 m² +40% | 2021 |
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| 4, Dyke Close759 m away | 245 m² | 290 m² | +45 m² +18% | 2025 |
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| 20, Gableson Avenue404 m away | 83 m² | 128 m² | +45 m² +54% | 2017 |
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| 60, Wayland Avenue624 m away | 195 m² | 239 m² | +44 m² +23% | 2026 |
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| 53, Hill Drive930 m away | 232 m² | 276 m² | +44 m² +19% | 2026 |
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| 13, Colebrook Road670 m away | 177 m² | 221 m² | +44 m² +25% | 2022 |
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| 97, Valley Drive352 m away | 130 m² | 174 m² | +44 m² +34% | 2021 |
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| 30, Redhill Drive240 m away | 103 m² | 147 m² | +44 m² +43% | 2018 |
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| 27, Whitethorn Drive446 m away | 161 m² | 204 m² | +43 m² +27% | 2024 |
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| 6, Glen Rise208 m away | 139 m² | 182 m² | +43 m² +31% | 2013 |
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| 3, Millcroft55 m away | 98 m² | 139 m² | +41 m² +42% | 2016 |
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| 5, The Close834 m away | 111 m² | 150 m² | +39 m² +35% | 2023 |
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| 11, Redhill Drive240 m away | 122 m² | 161 m² | +39 m² +32% | 2019 |
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| 36, Hill Brow815 m away | 211 m² | 249 m² | +38 m² +18% | 2024 |
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| 20, Downside639 m away | 97 m² | 135 m² | +38 m² +39% | 2020 |
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| 31, Tongdean Lane782 m away | 183 m² | 220 m² | +37 m² +20% | 2023 |
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| 2, Yorklands645 m away | 202 m² | 239 m² | +37 m² +18% | 2022 |
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| 48, Highbank364 m away | 92 m² | 129 m² | +37 m² +40% | 2017 |
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| 50, Bankside325 m away | 127 m² | 164 m² | +37 m² +29% | 2013 |
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| 22, Barn Rise555 m away | 67 m² | 103 m² | +36 m² +54% | 2017 |
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| 63, Bramble Rise356 m away | 116 m² | 152 m² | +36 m² +31% | 2013 |
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| 20, Bramble Rise397 m away | 72 m² | 108 m² | +36 m² +50% | 2013 |
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| 53, Brangwyn Drive836 m away | 105 m² | 140 m² | +35 m² +33% | 2018 |
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| 11, Hill Brow826 m away | 224 m² | 259 m² | +35 m² +16% | 2015 |
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| 5, Green Ridge427 m away | 139 m² | 173 m² | +34 m² +24% | 2026 |
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| 17, Redhill Close212 m away | 83 m² | 117 m² | +34 m² +41% | 2023 |
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| 13, Bramble Rise356 m away | 97 m² | 131 m² | +34 m² +35% | 2021 |
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| 28, Brangwyn Drive875 m away | 105 m² | 139 m² | +34 m² +32% | 2016 |
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| 20, Windmill Drive359 m away | 89 m² | 123 m² | +34 m² +38% | 2015 |
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| 40, Fernwood Rise598 m away | 80 m² | 114 m² | +34 m² +43% | 2014 |
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| 43, Green Ridge427 m away | 165 m² | 198 m² | +33 m² +20% | 2026 |
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| 15, Brangwyn Way959 m away | 167 m² | 200 m² | +33 m² +20% | 2018 |
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| 27, Brangwyn Drive836 m away | 137 m² | 170 m² | +33 m² +24% | 2015 |
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| 35, Hill Drive930 m away | 135 m² | 167 m² | +32 m² +24% | 2026 |
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| 73, Hill Brow657 m away | 178 m² | 210 m² | +32 m² +18% | 2025 |
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| 39, Hill Brow826 m away | 181 m² | 213 m² | +32 m² +18% | 2023 |
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| 12, Valley Drive612 m away | 112 m² | 144 m² | +32 m² +29% | 2016 |
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| 24, Millcroft0 m away | 111 m² | 142 m² | +31 m² +28% | 2026 |
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| 88, Wayland Avenue624 m away | 144 m² | 175 m² | +31 m² +22% | 2022 |
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| 78, Wayland Avenue624 m away | 122 m² | 153 m² | +31 m² +25% | 2019 |
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| 10, Highbank364 m away | 90 m² | 120 m² | +30 m² +33% | 2026 |
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| 56, Highbank364 m away | 95 m² | 125 m² | +30 m² +32% | 2025 |
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| 55, Wayland Avenue671 m away | 115 m² | 145 m² | +30 m² +26% | 2025 |
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| 2, Bramble Rise397 m away | 85 m² | 114 m² | +29 m² +34% | 2022 |
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| 1, Colebrook Cottages, Colebrook Road670 m away | 131 m² | 160 m² | +29 m² +22% | 2021 |
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| 72, Mill Rise204 m away | 92 m² | 121 m² | +29 m² +32% | 2020 |
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| 57, Eldred Avenue683 m away | 65 m² | 93 m² | +28 m² +43% | 2024 |
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| 53, Dene Vale551 m away | 101 m² | 129 m² | +28 m² +28% | 2023 |
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| 134, Valley Drive352 m away | 112 m² | 140 m² | +28 m² +25% | 2021 |
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| 127, Windmill Drive694 m away | 96 m² | 123 m² | +27 m² +28% | 2015 |
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| 39, Copse Hill587 m away | 80 m² | 106 m² | +26 m² +33% | 2025 |
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| 32, Millcroft0 m away | 72 m² | 98 m² | +26 m² +36% | 2014 |
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| 2, Glen Rise208 m away | 115 m² | 141 m² | +26 m² +23% | 2012 |
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| 19, South Woodlands989 m away | 139 m² | 164 m² | +25 m² +18% | 2025 |
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| 63, Wayland Avenue671 m away | 93 m² | 118 m² | +25 m² +27% | 2024 |
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| 48, Bramble Rise397 m away | 119 m² | 144 m² | +25 m² +21% | 2023 |
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| 66, Highbank364 m away | 130 m² | 155 m² | +25 m² +19% | 2022 |
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| 54, Highbank364 m away | 90 m² | 115 m² | +25 m² +28% | 2021 |
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| 68, Windmill Drive611 m away | 148 m² | 173 m² | +25 m² +17% | 2015 |
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| 10, Hillcrest274 m away | 116 m² | 140 m² | +24 m² +21% | 2025 |
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| 26, Brangwyn Crescent923 m away | 103 m² | 127 m² | +24 m² +23% | 2022 |
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| 93, Redhill Drive372 m away | 79 m² | 101 m² | +22 m² +28% | 2024 |
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| 15, Glen Rise221 m away | 124 m² | 146 m² | +22 m² +18% | 2014 |
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| 94, Valley Drive352 m away | 106 m² | 127 m² | +21 m² +20% | 2026 |
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| 20, Fernwood Rise598 m away | 87 m² | 108 m² | +21 m² +24% | 2016 |
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| 27, Valley Drive612 m away | 123 m² | 144 m² | +21 m² +17% | 2011 |
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| Flat 1, Ash House, 26, Tongdean Lane515 m away | 25 m² | 45 m² | +20 m² +80% | 2026 |
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| Flat 3, Mandalay Court, London Road914 m away | 74 m² | 94 m² | +20 m² +27% | 2016 |
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| 53, Westdene Drive57 m away | 124 m² | 143 m² | +19 m² +15% | 2020 |
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| 10, The Excelsior925 m away | 69 m² | 86 m² | +17 m² +25% | 2021 |
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| 16, Fernwood Rise598 m away | 84 m² | 101 m² | +17 m² +20% | 2020 |
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| 67, Redhill Drive372 m away | 107 m² | 124 m² | +17 m² +16% | 2011 |
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| Flat E, Upperdene Court, 4, Westdene Drive97 m away | 50 m² | 66 m² | +16 m² +32% | 2020 |
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| 94, Mill Rise204 m away | 91 m² | 106 m² | +15 m² +16% | 2026 |
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