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 CM13 2PP
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 |
|---|---|---|---|---|
| Little Paddock, 8, Challacombe Close505 m away | 204 m² | 493 m² | +289 m² +142% | 2015 |
| 3, Brockley Grove935 m away | 244 m² | 512 m² | +268 m² +110% | 2017 |
| Ker, Greenway713 m away | 245 m² | 497 m² | +252 m² +103% | 2022 |
| 63, Mount Avenue256 m away | 165 m² | 394 m² | +229 m² +139% | 2025 |
| Hillwood, 7, Hillwood Grove631 m away | 303 m² | 507 m² | +204 m² +67% | 2019 |
| 140, Hanging Hill Lane818 m away | 137 m² | 340 m² | +203 m² +148% | 2026 |
| Ramblers Lodge, Brockley Grove935 m away | 305 m² | 506 m² | +201 m² +66% | 2026 |
| Ormondhurst, Mount Avenue256 m away | 170 m² | 360 m² | +190 m² +112% | 2018 |
| Lofthus, Mallard Way |
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.
| 123 m² |
| 301 m² |
| +178 m² +145% |
| 2021 |
| 3, Ridgeway675 m away | 216 m² | 389 m² | +173 m² +80% | 2024 |
|---|
| 26, Mount Avenue387 m away | 382 m² | 554 m² | +172 m² +45% | 2023 |
|---|
| 22, Roundwood Grove593 m away | 162 m² | 327 m² | +165 m² +102% | 2022 |
|---|
| 24, Roundwood Grove593 m away | 176 m² | 340 m² | +164 m² +93% | 2012 |
|---|
| Russets, Darcy Close239 m away | 122 m² | 282 m² | +160 m² +131% | 2025 |
|---|
| 2, Shenfield Gardens659 m away | 112 m² | 272 m² | +160 m² +143% | 2019 |
|---|
| 1, Longaford Way437 m away | 154 m² | 308 m² | +154 m² +100% | 2025 |
|---|
| Oakwood, 51, Park Avenue697 m away | 202 m² | 354 m² | +152 m² +75% | 2023 |
|---|
| 37, Ridgeway721 m away | 206 m² | 358 m² | +152 m² +74% | 2021 |
|---|
| 89, Rayleigh Road298 m away | 115 m² | 266 m² | +151 m² +131% | 2015 |
|---|
| 36, Ridgeway736 m away | 300 m² | 448 m² | +148 m² +49% | 2017 |
|---|
| 178, Hanging Hill Lane510 m away | 151 m² | 292 m² | +141 m² +93% | 2020 |
|---|
| 8, Tennyson Road461 m away | 116 m² | 253 m² | +137 m² +118% | 2020 |
|---|
| Fairoak, Kandlewood347 m away | 212 m² | 338 m² | +126 m² +59% | 2025 |
|---|
| 42, Roundwood Avenue857 m away | 221 m² | 346 m² | +125 m² +57% | 2013 |
|---|
| 8, Willow Close552 m away | 83 m² | 207 m² | +124 m² +149% | 2025 |
|---|
| Greenloaning, 8, Herington Grove681 m away | 159 m² | 276 m² | +117 m² +74% | 2018 |
|---|
| 6, Janmead290 m away | 112 m² | 228 m² | +116 m² +104% | 2020 |
|---|
| 85, Sebastian Avenue910 m away | 86 m² | 201 m² | +115 m² +134% | 2023 |
|---|
| 10, Friars Avenue923 m away | 132 m² | 245 m² | +113 m² +86% | 2023 |
|---|
| 60, Rayleigh Road400 m away | 107 m² | 219 m² | +112 m² +105% | 2020 |
|---|
| 21, Cory Drive309 m away | 132 m² | 242 m² | +110 m² +83% | 2025 |
|---|
| 34, Hall Green Lane482 m away | 118 m² | 228 m² | +110 m² +93% | 2025 |
|---|
| 32, Roundwood Avenue726 m away | 132 m² | 241 m² | +109 m² +83% | 2020 |
|---|
| Eversley, Kingsley Road628 m away | 142 m² | 249 m² | +107 m² +75% | 2024 |
|---|
| 55, Hall Green Lane689 m away | 133 m² | 240 m² | +107 m² +80% | 2019 |
|---|
| 13, Tennyson Road461 m away | 154 m² | 259 m² | +105 m² +68% | 2021 |
|---|
| 42, Heronway884 m away | 298 m² | 401 m² | +103 m² +35% | 2024 |
|---|
| 25, Tennyson Road461 m away | 133 m² | 235 m² | +102 m² +77% | 2015 |
|---|
| 4, Lordship Close564 m away | 127 m² | 228 m² | +101 m² +80% | 2020 |
|---|
| 39, Friars Avenue923 m away | 109 m² | 209 m² | +100 m² +92% | 2026 |
|---|
| 11, Poplar Drive608 m away | 127 m² | 225 m² | +98 m² +77% | 2025 |
|---|
| 11, Friars Avenue923 m away | 92 m² | 188 m² | +96 m² +104% | 2024 |
|---|
| Highgrove, Heronway759 m away | 440 m² | 536 m² | +96 m² +22% | 2013 |
|---|
| 24, Delta Road874 m away | 92 m² | 187 m² | +95 m² +103% | 2019 |
|---|
| 46, Sebastian Avenue892 m away | 131 m² | 225 m² | +94 m² +72% | 2019 |
|---|
| 22, Friars Avenue923 m away | 89 m² | 183 m² | +94 m² +106% | 2019 |
|---|
| 18, Willow Close552 m away | 81 m² | 174 m² | +93 m² +115% | 2026 |
|---|
| 4, Willow Close552 m away | 71 m² | 161 m² | +90 m² +127% | 2024 |
|---|
| 40, Crossways924 m away | 135 m² | 224 m² | +89 m² +66% | 2019 |
|---|
| 138, Hanging Hill Lane818 m away | 146 m² | 233 m² | +87 m² +60% | 2024 |
|---|
| 239, Rayleigh Road956 m away | 62 m² | 149 m² | +87 m² +140% | 2021 |
|---|
| 16, Willow Close552 m away | 75 m² | 160 m² | +85 m² +113% | 2014 |
|---|
| St. Briavels, Greenway647 m away | 231 m² | 315 m² | +84 m² +36% | 2023 |
|---|
| 57, Heronway924 m away | 304 m² | 388 m² | +84 m² +28% | 2022 |
|---|
| 18, Park Avenue506 m away | 118 m² | 202 m² | +84 m² +71% | 2021 |
|---|
| 19, Sebastian Avenue949 m away | 115 m² | 199 m² | +84 m² +73% | 2020 |
|---|
| 8, Woodland Close901 m away | 58 m² | 140 m² | +82 m² +141% | 2019 |
|---|
| 227, Hanging Hill Lane428 m away | 121 m² | 200 m² | +79 m² +65% | 2019 |
|---|
| 18, Roundwood Grove593 m away | 217 m² | 295 m² | +78 m² +36% | 2016 |
|---|
| 222, Hanging Hill Lane267 m away | 172 m² | 249 m² | +77 m² +45% | 2025 |
|---|
| 113, Rayleigh Road606 m away | 93 m² | 170 m² | +77 m² +83% | 2017 |
|---|
| 34, Herington Grove794 m away | 101 m² | 175 m² | +74 m² +73% | 2022 |
|---|
| 53, Park Avenue697 m away | 179 m² | 252 m² | +73 m² +41% | 2026 |
|---|
| 36, Heronway884 m away | 206 m² | 279 m² | +73 m² +35% | 2022 |
|---|
| 7, Lyndhurst Way425 m away | 102 m² | 174 m² | +72 m² +71% | 2024 |
|---|
| 26, Park Avenue506 m away | 124 m² | 196 m² | +72 m² +58% | 2019 |
|---|
| 15, Willow Close552 m away | 71 m² | 142 m² | +71 m² +100% | 2012 |
|---|
| 121, Rayleigh Road606 m away | 214 m² | 284 m² | +70 m² +33% | 2020 |
|---|
| 16, Hunter Avenue817 m away | 63 m² | 132 m² | +69 m² +110% | 2020 |
|---|
| 16, Oliver Road912 m away | 91 m² | 159 m² | +68 m² +75% | 2025 |
|---|
| 65, Woodland Avenue867 m away | 68 m² | 136 m² | +68 m² +100% | 2022 |
|---|
| 6, Delta Road874 m away | 71 m² | 139 m² | +68 m² +96% | 2016 |
|---|
| 33, Crossways924 m away | 130 m² | 197 m² | +67 m² +52% | 2023 |
|---|
| 11, Janmead290 m away | 164 m² | 229 m² | +65 m² +40% | 2021 |
|---|
| Hillcroft, Alexander Lane654 m away | 105 m² | 170 m² | +65 m² +62% | 2016 |
|---|
| 67, Hall Green Lane830 m away | 161 m² | 225 m² | +64 m² +40% | 2021 |
|---|
| 31, Friars Avenue923 m away | 97 m² | 161 m² | +64 m² +66% | 2015 |
|---|
| 4, Park Avenue506 m away | 148 m² | 210 m² | +62 m² +42% | 2024 |
|---|
| 28, Friars Avenue923 m away | 122 m² | 184 m² | +62 m² +51% | 2024 |
|---|
| 21, Sebastian Avenue949 m away | 119 m² | 181 m² | +62 m² +52% | 2021 |
|---|
| 40, Burses Way120 m away | 96 m² | 158 m² | +62 m² +65% | 2015 |
|---|
| 19, Cory Drive309 m away | 126 m² | 186 m² | +60 m² +48% | 2024 |
|---|
| 93, Sebastian Avenue910 m away | 62 m² | 122 m² | +60 m² +97% | 2018 |
|---|
| 8, Burses Way152 m away | 90 m² | 149 m² | +59 m² +66% | 2022 |
|---|
| 2, Farm Close264 m away | 82 m² | 140 m² | +58 m² +71% | 2025 |
|---|
| 91, Long Ridings Avenue956 m away | 89 m² | 147 m² | +58 m² +65% | 2025 |
|---|
| Morada, Mount Avenue466 m away | 228 m² | 286 m² | +58 m² +25% | 2011 |
|---|
| 17, Tennyson Road461 m away | 132 m² | 189 m² | +57 m² +43% | 2022 |
|---|
| 3, Greyfriars328 m away | 220 m² | 277 m² | +57 m² +26% | 2016 |
|---|
| 10, Leafy Way640 m away | 98 m² | 154 m² | +56 m² +57% | 2020 |
|---|
| 17, Alpha Road915 m away | 45 m² | 99 m² | +54 m² +120% | 2018 |
|---|
| 17, Surman Crescent0 m away | 96 m² | 150 m² | +54 m² +56% | 2014 |
|---|
| 7, Farm Close264 m away | 129 m² | 182 m² | +53 m² +41% | 2014 |
|---|
| 20, Long Meadow944 m away | 102 m² | 154 m² | +52 m² +51% | 2024 |
|---|
| 7, Luppit Close911 m away | 209 m² | 261 m² | +52 m² +25% | 2019 |
|---|
| Sun Gate, 47, Ridgeway736 m away | 251 m² | 302 m² | +51 m² +20% | 2026 |
|---|
| 30, Roundwood Avenue726 m away | 177 m² | 228 m² | +51 m² +29% | 2025 |
|---|
| The Coppice, Greenway713 m away | 308 m² | 359 m² | +51 m² +17% | 2023 |
|---|
| 48, Hunter Avenue817 m away | 91 m² | 142 m² | +51 m² +56% | 2023 |
|---|
| 8, Rayleigh Road684 m away | 79 m² | 130 m² | +51 m² +65% | 2020 |
|---|
| 1a, Friars Avenue923 m away | 89 m² | 140 m² | +51 m² +57% | 2017 |
|---|
| 200, Hanging Hill Lane255 m away | 118 m² | 168 m² | +50 m² +42% | 2026 |
|---|
| 47, Poplar Drive608 m away | 112 m² | 162 m² | +50 m² +45% | 2024 |
|---|
| 8, Copeman Road579 m away | 78 m² | 128 m² | +50 m² +64% | 2022 |
|---|
| 62, Long Ridings Avenue928 m away | 81 m² | 131 m² | +50 m² +62% | 2018 |
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| 39, Ridgeway721 m away | 273 m² | 322 m² | +49 m² +18% | 2025 |
|---|
| 129, Hunter Avenue848 m away | 89 m² | 138 m² | +49 m² +55% | 2019 |
|---|
| 10, Carpenter Path890 m away | 89 m² | 138 m² | +49 m² +55% | 2012 |
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| 10, Coleridge Walk367 m away | 80 m² | 128 m² | +48 m² +60% | 2026 |
|---|
| 31, Byron Road703 m away | 85 m² | 133 m² | +48 m² +56% | 2020 |
|---|
| 4, Janmead290 m away | 110 m² | 158 m² | +48 m² +44% | 2014 |
|---|
| 14, Newlands Close827 m away | 85 m² | 132 m² | +47 m² +55% | 2018 |
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| 5, Woodland Avenue797 m away | 97 m² | 144 m² | +47 m² +48% | 2014 |
|---|
| Alverstone, Alexander Lane925 m away | 123 m² | 169 m² | +46 m² +37% | 2026 |
|---|
| 248, Hanging Hill Lane267 m away | 69 m² | 114 m² | +45 m² +65% | 2015 |
|---|
| 2, Cedar Close882 m away | 83 m² | 127 m² | +44 m² +53% | 2022 |
|---|
| 86, Hunter Avenue848 m away | 58 m² | 101 m² | +43 m² +74% | 2024 |
|---|
| 11, Cedar Road813 m away | 47 m² | 90 m² | +43 m² +91% | 2018 |
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| 33, Cedar Road813 m away | 137 m² | 179 m² | +42 m² +31% | 2026 |
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| 49, Long Ridings Avenue928 m away | 91 m² | 133 m² | +42 m² +46% | 2024 |
|---|
| 25, Park Avenue506 m away | 249 m² | 291 m² | +42 m² +17% | 2021 |
|---|
| 117, Hunter Avenue848 m away | 88 m² | 130 m² | +42 m² +48% | 2017 |
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| 2, Lordship Close564 m away | 146 m² | 187 m² | +41 m² +28% | 2026 |
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| 14, Copeman Road579 m away | 66 m² | 107 m² | +41 m² +62% | 2024 |
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| 23, Woodland Close901 m away | 75 m² | 115 m² | +40 m² +53% | 2022 |
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| Longwood, Alexander Lane654 m away | 98 m² | 138 m² | +40 m² +41% | 2014 |
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| Beechwood, Mount Avenue387 m away | 205 m² | 244 m² | +39 m² +19% | 2026 |
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| 35, Woodland Avenue797 m away | 80 m² | 119 m² | +39 m² +49% | 2021 |
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| 19, Longaford Way437 m away | 169 m² | 208 m² | +39 m² +23% | 2020 |
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| 44, Hunter Avenue817 m away | 89 m² | 127 m² | +38 m² +43% | 2023 |
|---|
| 34, Coram Green961 m away | 84 m² | 122 m² | +38 m² +45% | 2021 |
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| 7, Greyfriars328 m away | 150 m² | 188 m² | +38 m² +25% | 2017 |
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| 11, Coleridge Walk367 m away | 111 m² | 148 m² | +37 m² +33% | 2024 |
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| 28, Byron Road519 m away | 100 m² | 137 m² | +37 m² +37% | 2016 |
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| 153, Rayleigh Road606 m away | 141 m² | 177 m² | +36 m² +26% | 2025 |
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| 21, Hall Green Lane482 m away | 175 m² | 211 m² | +36 m² +21% | 2015 |
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| 115, Rayleigh Road606 m away | 134 m² | 169 m² | +35 m² +26% | 2025 |
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| 23, Newmans Drive167 m away | 159 m² | 194 m² | +35 m² +22% | 2024 |
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| 12, Long Ridings Avenue871 m away | 111 m² | 146 m² | +35 m² +32% | 2023 |
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| 3, Tennyson Road461 m away | 105 m² | 140 m² | +35 m² +33% | 2020 |
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| 108, Hunter Avenue848 m away | 53 m² | 88 m² | +35 m² +66% | 2020 |
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| 59, Woodland Avenue867 m away | 99 m² | 134 m² | +35 m² +35% | 2016 |
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| 171, Rayleigh Road606 m away | 75 m² | 109 m² | +34 m² +45% | 2025 |
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| 1, Carswell Close934 m away | 88 m² | 122 m² | +34 m² +39% | 2023 |
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| 85a, Hutton Road880 m away | 23 m² | 56 m² | +33 m² +143% | 2026 |
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| 10, Herington Grove681 m away | 219 m² | 252 m² | +33 m² +15% | 2024 |
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| 26, Woodland Avenue867 m away | 86 m² | 119 m² | +33 m² +38% | 2013 |
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| 6, Beaumont Gardens703 m away | 143 m² | 173 m² | +30 m² +21% | 2026 |
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| 91, Whittington Road929 m away | 36 m² | 66 m² | +30 m² +83% | 2025 |
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| 6, Waltham Close607 m away | 96 m² | 126 m² | +30 m² +31% | 2023 |
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| 147, Rayleigh Road606 m away | 96 m² | 126 m² | +30 m² +31% | 2016 |
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| 45, Long Ridings Avenue928 m away | 87 m² | 116 m² | +29 m² +33% | 2026 |
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| 9, Friars Avenue923 m away | 122 m² | 151 m² | +29 m² +24% | 2020 |
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| 48, Hall Green Lane689 m away | 114 m² | 143 m² | +29 m² +25% | 2018 |
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| Dryden, Kingsley Road615 m away | 173 m² | 202 m² | +29 m² +17% | 2015 |
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| 31, Hall Green Lane482 m away | 148 m² | 177 m² | +29 m² +20% | 2012 |
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| 24, Hunter Avenue817 m away | 64 m² | 93 m² | +29 m² +45% | 2011 |
|---|
| 30, Woodland Avenue867 m away | 61 m² | 89 m² | +28 m² +46% | 2025 |
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| 131, Hunter Avenue848 m away | 87 m² | 115 m² | +28 m² +32% | 2022 |
|---|
| 15, Lyndhurst Way425 m away | 120 m² | 147 m² | +27 m² +23% | 2025 |
|---|
| 16, Coram Green961 m away | 69 m² | 96 m² | +27 m² +39% | 2022 |
|---|
| 64, Rayleigh Road384 m away | 82 m² | 109 m² | +27 m² +33% | 2014 |
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| 37, Byron Road703 m away | 83 m² | 109 m² | +26 m² +31% | 2026 |
|---|
| 15, Newlands Close827 m away | 107 m² | 133 m² | +26 m² +24% | 2023 |
|---|
| 60, Hall Green Lane689 m away | 115 m² | 141 m² | +26 m² +23% | 2015 |
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| 21, Surman Crescent0 m away | 79 m² | 105 m² | +26 m² +33% | 2014 |
|---|
| 15, Woodland Avenue797 m away | 116 m² | 141 m² | +25 m² +22% | 2024 |
|---|
| 39, Cedar Road813 m away | 64 m² | 89 m² | +25 m² +39% | 2019 |
|---|
| 17, Clifton Way857 m away | 104 m² | 129 m² | +25 m² +24% | 2018 |
|---|
| 2, Broxted Mews540 m away | 145 m² | 169 m² | +24 m² +17% | 2026 |
|---|
| 67, Cedar Road781 m away | 66 m² | 90 m² | +24 m² +36% | 2023 |
|---|
| 28, Burses Way152 m away | 135 m² | 159 m² | +24 m² +18% | 2019 |
|---|
| 63, Sebastian Avenue892 m away | 139 m² | 163 m² | +24 m² +17% | 2018 |
|---|
| 79, Sebastian Avenue910 m away | 69 m² | 93 m² | +24 m² +35% | 2017 |
|---|
| 1, Colet Road951 m away | 76 m² | 100 m² | +24 m² +32% | 2013 |
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| 31c, Tennyson Road461 m away | 91 m² | 114 m² | +23 m² +25% | 2025 |
|---|
| 51, Woodland Avenue867 m away | 64 m² | 87 m² | +23 m² +36% | 2019 |
|---|
| 3, Alpha Road915 m away | 105 m² | 128 m² | +23 m² +22% | 2014 |
|---|
| Flat 1, Booths Court, Poplar Drive504 m away | 63 m² | 85 m² | +22 m² +35% | 2026 |
|---|
| 10, Hunter Avenue842 m away | 62 m² | 84 m² | +22 m² +35% | 2021 |
|---|
| 135, Hunter Avenue848 m away | 111 m² | 132 m² | +21 m² +19% | 2025 |
|---|
| 12, Hunter Avenue817 m away | 69 m² | 90 m² | +21 m² +30% | 2020 |
|---|
| 32, Burses Way152 m away | 113 m² | 132 m² | +19 m² +17% | 2023 |
|---|
| 5, Long Ridings Avenue871 m away | 83 m² | 100 m² | +17 m² +20% | 2025 |
|---|
| 80, Long Ridings Avenue968 m away | 81 m² | 98 m² | +17 m² +21% | 2015 |
|---|
| 16, Great Oaks501 m away | 112 m² | 129 m² | +17 m² +15% | 2012 |
|---|
| 27, Rayleigh Road613 m away | 66 m² | 82 m² | +16 m² +24% | 2018 |
|---|
| 18, Newlands Close827 m away | 99 m² | 115 m² | +16 m² +16% | 2015 |
|---|
| 3, Rosen Crescent559 m away | 61 m² | 76 m² | +15 m² +25% | 2025 |
|---|
| 12, Alpha Road915 m away | 75 m² | 90 m² | +15 m² +20% | 2018 |
|---|
| 78, Long Ridings Avenue968 m away | 92 m² | 107 m² | +15 m² +16% | 2014 |
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