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 RM11 2AG
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 |
|---|---|---|---|---|
| 5, Elm Grove788 m away | 316 m² | 730 m² | +414 m² +131% | 2013 |
| 7, Woodlands Avenue578 m away | 248 m² | 555 m² | +307 m² +124% | 2015 |
| 21, Parkstone Avenue623 m away | 283 m² | 526 m² | +243 m² +86% | 2017 |
| 84, Harrow Drive748 m away | 189 m² | 414 m² | +225 m² +119% | 2012 |
| 4, Porchester Close646 m away | 187 m² | 401 m² | +214 m² +114% | 2014 |
| 4, Nelmes Road704 m away | 162 m² | 372 m² | +210 m² +130% | 2014 |
| 8, Ernest Road871 m away | 218 m² | 422 m² | +204 m² +94% | 2016 |
| 95, Harrow Drive770 m away | 140 m² | 340 m² | +200 m² +143% | 2024 |
| 12, Rockchase Gardens582 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.
| 208 m² |
| 378 m² |
| +170 m² +82% |
| 2020 |
| 14, Elm Grove788 m away | 305 m² | 474 m² | +169 m² +55% | 2025 |
|---|
| 15, Nelmes Way944 m away | 113 m² | 281 m² | +168 m² +149% | 2017 |
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| 41, Nelmes Way894 m away | 201 m² | 362 m² | +161 m² +80% | 2025 |
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| 16, Berther Road708 m away | 146 m² | 292 m² | +146 m² +100% | 2026 |
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| 9, Ayloffs Walk743 m away | 143 m² | 285 m² | +142 m² +99% | 2020 |
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| 16, Ernest Road871 m away | 458 m² | 587 m² | +129 m² +28% | 2023 |
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| 60, Brookside792 m away | 115 m² | 243 m² | +128 m² +111% | 2016 |
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| 73, Harrow Drive770 m away | 269 m² | 390 m² | +121 m² +45% | 2016 |
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| 8, Brookside576 m away | 112 m² | 231 m² | +119 m² +106% | 2022 |
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| 2a, Burntwood Avenue545 m away | 160 m² | 276 m² | +116 m² +73% | 2015 |
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| 1, Banyards974 m away | 142 m² | 256 m² | +114 m² +80% | 2023 |
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| 23, Elm Grove830 m away | 526 m² | 638 m² | +112 m² +21% | 2026 |
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| 25, Warrington Gardens94 m away | 87 m² | 194 m² | +107 m² +123% | 2024 |
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| 42, Parkstone Avenue939 m away | 481 m² | 588 m² | +107 m² +22% | 2010 |
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| 15, Haynes Road883 m away | 85 m² | 191 m² | +106 m² +125% | 2019 |
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| 5, Mendoza Close760 m away | 209 m² | 314 m² | +105 m² +50% | 2022 |
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| 59, Ardleigh Green Road463 m away | 124 m² | 227 m² | +103 m² +83% | 2017 |
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| 22, Burntwood Avenue545 m away | 259 m² | 359 m² | +100 m² +39% | 2025 |
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| 8, Walden Road367 m away | 153 m² | 251 m² | +98 m² +64% | 2025 |
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| 65, Hillview Avenue428 m away | 65 m² | 162 m² | +97 m² +149% | 2017 |
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| 28, Boscombe Avenue562 m away | 93 m² | 186 m² | +93 m² +100% | 2026 |
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| 18, Emerson Drive754 m away | 122 m² | 214 m² | +92 m² +75% | 2026 |
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| 4, Windsor Road680 m away | 75 m² | 167 m² | +92 m² +123% | 2022 |
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| 421, Brentwood Road849 m away | 147 m² | 236 m² | +89 m² +61% | 2023 |
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| 55, Kinfauns Avenue332 m away | 72 m² | 159 m² | +87 m² +121% | 2014 |
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| 12, Nelmes Road704 m away | 184 m² | 265 m² | +81 m² +44% | 2025 |
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| 3, Westmoreland Avenue808 m away | 112 m² | 192 m² | +80 m² +71% | 2025 |
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| 7, Berther Road632 m away | 106 m² | 186 m² | +80 m² +75% | 2020 |
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| 103, Heath Park Road848 m away | 219 m² | 298 m² | +79 m² +36% | 2023 |
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| 18, Balmoral Road989 m away | 117 m² | 195 m² | +78 m² +67% | 2025 |
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| 4, Woodcutters Close923 m away | 145 m² | 222 m² | +77 m² +53% | 2020 |
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| 24, Grey Towers Avenue992 m away | 100 m² | 177 m² | +77 m² +77% | 2020 |
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| 7, Nelmes Road704 m away | 258 m² | 333 m² | +75 m² +29% | 2018 |
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| 147, Haynes Road473 m away | 134 m² | 208 m² | +74 m² +55% | 2021 |
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| 163, Haynes Road473 m away | 79 m² | 153 m² | +74 m² +94% | 2017 |
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| 274, Osborne Road533 m away | 108 m² | 180 m² | +72 m² +67% | 2024 |
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| 83, Haynes Road883 m away | 93 m² | 165 m² | +72 m² +77% | 2024 |
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| 34, Boscombe Avenue717 m away | 82 m² | 153 m² | +71 m² +87% | 2025 |
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| 21, Woodlands Avenue578 m away | 251 m² | 321 m² | +70 m² +28% | 2023 |
|---|
| 24, Hazel Rise348 m away | 96 m² | 165 m² | +69 m² +72% | 2020 |
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| 96, Harrow Drive748 m away | 138 m² | 206 m² | +68 m² +49% | 2024 |
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| 6, Burntwood Avenue545 m away | 323 m² | 390 m² | +67 m² +21% | 2014 |
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| 8, The Woodfines423 m away | 199 m² | 264 m² | +65 m² +33% | 2016 |
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| 100, Cranham Road431 m away | 65 m² | 130 m² | +65 m² +100% | 2016 |
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| 33, Grey Towers Avenue992 m away | 89 m² | 153 m² | +64 m² +72% | 2018 |
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| 2, Warrington Gardens0 m away | 73 m² | 135 m² | +62 m² +85% | 2026 |
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| 19a, Ernest Road884 m away | 155 m² | 217 m² | +62 m² +40% | 2023 |
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| 40, Percival Road280 m away | 45 m² | 106 m² | +61 m² +136% | 2023 |
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| 88, Hyland Way903 m away | 87 m² | 148 m² | +61 m² +70% | 2023 |
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| 94, Northumberland Avenue628 m away | 61 m² | 122 m² | +61 m² +100% | 2021 |
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| 12, Slewins Lane522 m away | 77 m² | 137 m² | +60 m² +78% | 2014 |
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| 28, Wykeham Avenue225 m away | 102 m² | 161 m² | +59 m² +58% | 2023 |
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| 8, Herbert Road931 m away | 227 m² | 285 m² | +58 m² +26% | 2026 |
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| 8, Windsor Road680 m away | 73 m² | 130 m² | +57 m² +78% | 2023 |
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| 56, Harrow Drive748 m away | 275 m² | 332 m² | +57 m² +21% | 2018 |
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| 59, Elmhurst Drive719 m away | 98 m² | 155 m² | +57 m² +58% | 2015 |
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| 1, Cromer Road660 m away | 89 m² | 145 m² | +56 m² +63% | 2024 |
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| 102, Osborne Road526 m away | 84 m² | 140 m² | +56 m² +67% | 2021 |
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| 2, Yevele Way900 m away | 121 m² | 177 m² | +56 m² +46% | 2015 |
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| 34, Great Gardens Road587 m away | 66 m² | 121 m² | +55 m² +83% | 2017 |
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| 114, Hillview Avenue319 m away | 53 m² | 107 m² | +54 m² +102% | 2026 |
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| 8, Rockingham Avenue787 m away | 139 m² | 193 m² | +54 m² +39% | 2020 |
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| 54, Brooklands Gardens173 m away | 72 m² | 125 m² | +53 m² +74% | 2025 |
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| 100, Hillview Avenue303 m away | 135 m² | 188 m² | +53 m² +39% | 2022 |
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| 5, Lytton Road776 m away | 85 m² | 138 m² | +53 m² +62% | 2019 |
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| 4, Ernest Road871 m away | 250 m² | 302 m² | +52 m² +21% | 2016 |
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| 1, Boscombe Avenue562 m away | 78 m² | 129 m² | +51 m² +65% | 2023 |
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| 17, Rowan Walk796 m away | 126 m² | 177 m² | +51 m² +40% | 2019 |
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| 28, Osborne Road880 m away | 105 m² | 156 m² | +51 m² +49% | 2019 |
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| 191, Northumberland Avenue847 m away | 122 m² | 172 m² | +50 m² +41% | 2026 |
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| 17, Eugene Close818 m away | 82 m² | 132 m² | +50 m² +61% | 2025 |
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| 38, Hillview Avenue410 m away | 91 m² | 141 m² | +50 m² +55% | 2024 |
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| 19, Hillview Avenue428 m away | 107 m² | 157 m² | +50 m² +47% | 2021 |
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| 111a, Hillview Avenue303 m away | 126 m² | 175 m² | +49 m² +39% | 2026 |
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| 73, Slewins Lane341 m away | 153 m² | 202 m² | +49 m² +32% | 2025 |
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| 7, Hardley Crescent954 m away | 118 m² | 167 m² | +49 m² +42% | 2025 |
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| 52, Harrow Drive748 m away | 220 m² | 268 m² | +48 m² +22% | 2025 |
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| 66, North Street905 m away | 195 m² | 242 m² | +47 m² +24% | 2022 |
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| Flat 8, Waterwell Court, 3a, Manor Avenue654 m away | 52 m² | 98 m² | +46 m² +88% | 2026 |
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| 185, Northumberland Avenue847 m away | 83 m² | 129 m² | +46 m² +55% | 2014 |
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| 252, Osborne Road533 m away | 81 m² | 126 m² | +45 m² +56% | 2024 |
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| 21, Lytton Road776 m away | 133 m² | 178 m² | +45 m² +34% | 2024 |
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| 46, Percival Road280 m away | 46 m² | 91 m² | +45 m² +98% | 2019 |
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| 7, Slewins Lane522 m away | 158 m² | 202 m² | +44 m² +28% | 2020 |
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| 119, Northumberland Avenue634 m away | 60 m² | 104 m² | +44 m² +73% | 2019 |
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| 88, Cranham Road431 m away | 90 m² | 133 m² | +43 m² +48% | 2024 |
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| 14, Walden Way185 m away | 207 m² | 249 m² | +42 m² +20% | 2024 |
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| 53, Hazelmere Gardens419 m away | 127 m² | 169 m² | +42 m² +33% | 2022 |
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| 4, Emerson Drive754 m away | 120 m² | 162 m² | +42 m² +35% | 2020 |
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| 8, Maybrick Road473 m away | 115 m² | 156 m² | +41 m² +36% | 2022 |
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| 5a, Nelmes Road704 m away | 235 m² | 276 m² | +41 m² +17% | 2015 |
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| 6, Thorncroft769 m away | 65 m² | 105 m² | +40 m² +62% | 2026 |
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| 46, Squirrels Heath Lane963 m away | 112 m² | 152 m² | +40 m² +36% | 2022 |
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| 7, Cranham Road602 m away | 85 m² | 125 m² | +40 m² +47% | 2014 |
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| 1, Margaret Close823 m away | 95 m² | 135 m² | +40 m² +42% | 2014 |
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| 130, Northumberland Avenue870 m away | 61 m² | 101 m² | +40 m² +66% | 2012 |
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| 166, Lyndhurst Drive557 m away | 95 m² | 134 m² | +39 m² +41% | 2026 |
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| 55, Haynes Road883 m away | 92 m² | 131 m² | +39 m² +42% | 2022 |
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| 3, Rowan Walk796 m away | 165 m² | 204 m² | +39 m² +24% | 2020 |
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| Flat 7, Noble Court, 126, North Street744 m away | 45 m² | 83 m² | +38 m² +84% | 2026 |
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| 7, Thorncroft769 m away | 65 m² | 103 m² | +38 m² +58% | 2026 |
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| 29, Keswick Avenue960 m away | 92 m² | 130 m² | +38 m² +41% | 2025 |
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| 27, Slewins Lane522 m away | 88 m² | 126 m² | +38 m² +43% | 2024 |
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| 62, Great Gardens Road379 m away | 72 m² | 110 m² | +38 m² +53% | 2021 |
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| 13, Warrington Gardens0 m away | 76 m² | 114 m² | +38 m² +50% | 2014 |
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| 18, Thorncroft769 m away | 98 m² | 135 m² | +37 m² +38% | 2024 |
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| 9, Brooklands Gardens139 m away | 100 m² | 137 m² | +37 m² +37% | 2016 |
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| 32, Boscombe Avenue562 m away | 113 m² | 149 m² | +36 m² +32% | 2025 |
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| 43, Kingsley Gardens1000 m away | 92 m² | 128 m² | +36 m² +39% | 2025 |
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| 67, Cranham Road602 m away | 82 m² | 118 m² | +36 m² +44% | 2024 |
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| 105, Hyland Way962 m away | 92 m² | 128 m² | +36 m² +39% | 2024 |
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| 222, Balgores Lane944 m away | 124 m² | 160 m² | +36 m² +29% | 2022 |
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| 28, Whitethorn Gardens108 m away | 84 m² | 119 m² | +35 m² +42% | 2026 |
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| 32, Hazel Rise348 m away | 68 m² | 103 m² | +35 m² +51% | 2021 |
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| 29, Thorncroft769 m away | 132 m² | 167 m² | +35 m² +27% | 2016 |
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| 34, Brookside576 m away | 93 m² | 127 m² | +34 m² +37% | 2024 |
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| 60, Cranham Road663 m away | 66 m² | 100 m² | +34 m² +52% | 2020 |
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| 11, Lewis Road204 m away | 85 m² | 118 m² | +33 m² +39% | 2026 |
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| 51, Cromer Road660 m away | 103 m² | 136 m² | +33 m² +32% | 2025 |
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| 20, Pinecroft729 m away | 102 m² | 135 m² | +33 m² +32% | 2025 |
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| 127, Osborne Road526 m away | 82 m² | 115 m² | +33 m² +40% | 2017 |
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| 46, Salisbury Road761 m away | 68 m² | 101 m² | +33 m² +49% | 2016 |
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| 22, Balmoral Road989 m away | 126 m² | 159 m² | +33 m² +26% | 2015 |
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| 25a, Percival Road280 m away | 81 m² | 113 m² | +32 m² +40% | 2025 |
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| 12, Eugene Close818 m away | 78 m² | 109 m² | +31 m² +40% | 2025 |
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| 104, Osborne Road526 m away | 101 m² | 132 m² | +31 m² +31% | 2024 |
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| 32a, Northumberland Avenue403 m away | 113 m² | 144 m² | +31 m² +27% | 2023 |
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| 82, Haynes Road468 m away | 116 m² | 146 m² | +30 m² +26% | 2024 |
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| 7, Percival Road280 m away | 67 m² | 97 m² | +30 m² +45% | 2023 |
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| 36, Haynes Road852 m away | 84 m² | 114 m² | +30 m² +36% | 2023 |
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| 92, Northumberland Avenue628 m away | 101 m² | 131 m² | +30 m² +30% | 2022 |
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| 26, Wykeham Avenue225 m away | 111 m² | 141 m² | +30 m² +27% | 2019 |
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| 66, Grey Towers Avenue855 m away | 50 m² | 80 m² | +30 m² +60% | 2019 |
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| 8, Manor Crescent586 m away | 136 m² | 166 m² | +30 m² +22% | 2017 |
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| 120, Hillview Avenue319 m away | 77 m² | 106 m² | +29 m² +38% | 2025 |
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| 48, Harrow Drive748 m away | 109 m² | 138 m² | +29 m² +27% | 2024 |
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| 9, Margaret Road879 m away | 105 m² | 134 m² | +29 m² +28% | 2021 |
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| 22, Boscombe Avenue562 m away | 92 m² | 121 m² | +29 m² +32% | 2020 |
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| 60, Rockingham Avenue787 m away | 127 m² | 156 m² | +29 m² +23% | 2020 |
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| 5, Fanshawe Crescent109 m away | 146 m² | 175 m² | +29 m² +20% | 2017 |
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| 56, Great Gardens Road379 m away | 98 m² | 127 m² | +29 m² +30% | 2014 |
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| 49, Hazelmere Gardens419 m away | 83 m² | 111 m² | +28 m² +34% | 2021 |
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| 31a, Butts Green Road447 m away | 38 m² | 66 m² | +28 m² +74% | 2013 |
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| 20, Emerson Drive754 m away | 152 m² | 179 m² | +27 m² +18% | 2026 |
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| 234, Osborne Road533 m away | 99 m² | 126 m² | +27 m² +27% | 2024 |
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| 18, Kershaw Close844 m away | 100 m² | 127 m² | +27 m² +27% | 2024 |
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| 1, Ardleigh Green Road247 m away | 105 m² | 132 m² | +27 m² +26% | 2018 |
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| 8, Whitethorn Gardens108 m away | 87 m² | 114 m² | +27 m² +31% | 2017 |
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| 6, Slewins Lane522 m away | 51 m² | 78 m² | +27 m² +53% | 2017 |
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| 44, Cranham Road663 m away | 98 m² | 125 m² | +27 m² +28% | 2012 |
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| 50, Hillview Avenue410 m away | 84 m² | 111 m² | +27 m² +32% | 2011 |
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| 371, Brentwood Road657 m away | 87 m² | 114 m² | +27 m² +31% | 2010 |
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| 18, Hardley Crescent954 m away | 111 m² | 137 m² | +26 m² +23% | 2023 |
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| 109a, Hillview Avenue303 m away | 88 m² | 114 m² | +26 m² +30% | 2022 |
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| 41, Cavenham Gardens520 m away | 77 m² | 103 m² | +26 m² +34% | 2021 |
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| 48, Boscombe Avenue717 m away | 96 m² | 122 m² | +26 m² +27% | 2019 |
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| 76, Hillview Avenue410 m away | 68 m² | 94 m² | +26 m² +38% | 2016 |
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| 16, Eugene Close818 m away | 92 m² | 117 m² | +25 m² +27% | 2023 |
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| 1, Elms Close940 m away | 116 m² | 141 m² | +25 m² +22% | 2023 |
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| 23, Lawrence Road906 m away | 158 m² | 183 m² | +25 m² +16% | 2015 |
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| 23a, Butts Green Road447 m away | 40 m² | 64 m² | +24 m² +60% | 2025 |
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| 181, Osborne Road421 m away | 90 m² | 114 m² | +24 m² +27% | 2024 |
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| 102, Northumberland Avenue628 m away | 67 m² | 91 m² | +24 m² +36% | 2023 |
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| 52, Haynes Road852 m away | 89 m² | 113 m² | +24 m² +27% | 2023 |
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| 4, Manor Crescent586 m away | 152 m² | 176 m² | +24 m² +16% | 2022 |
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| 101, Heath Park Road848 m away | 118 m² | 141 m² | +23 m² +19% | 2023 |
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| 90, Osborne Road526 m away | 104 m² | 127 m² | +23 m² +22% | 2019 |
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| 27a, Osborne Road840 m away | 143 m² | 166 m² | +23 m² +16% | 2019 |
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| 6b, Slewins Lane522 m away | 51 m² | 74 m² | +23 m² +45% | 2018 |
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| 80, Heath Park Road953 m away | 43 m² | 66 m² | +23 m² +53% | 2009 |
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| 78, North Street905 m away | 107 m² | 129 m² | +22 m² +21% | 2026 |
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| 23, Clive Road848 m away | 88 m² | 110 m² | +22 m² +25% | 2025 |
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| 58, Billet Lane803 m away | 39 m² | 61 m² | +22 m² +56% | 2021 |
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| 132, Hillview Avenue319 m away | 45 m² | 67 m² | +22 m² +49% | 2013 |
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| 114, Grosvenor Drive589 m away | 62 m² | 84 m² | +22 m² +35% | 2011 |
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| 86a, Station Road969 m away | 75 m² | 96 m² | +21 m² +28% | 2024 |
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| 115, Northumberland Avenue634 m away | 58 m² | 79 m² | +21 m² +36% | 2023 |
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| 7, Regency Gardens778 m away | 134 m² | 155 m² | +21 m² +16% | 2021 |
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| 13, Kingsley Court822 m away | 27 m² | 48 m² | +21 m² +78% | 2021 |
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| 12, Pinecroft729 m away | 73 m² | 94 m² | +21 m² +29% | 2019 |
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| 330, Brentwood Road623 m away | 102 m² | 123 m² | +21 m² +21% | 2018 |
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| 6, Kingsley Gardens989 m away | 81 m² | 102 m² | +21 m² +26% | 2018 |
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| 35, Maybrick Road476 m away | 96 m² | 116 m² | +20 m² +21% | 2026 |
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| 16, Keith Way951 m away | 102 m² | 122 m² | +20 m² +20% | 2026 |
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| 8, Margaret Road879 m away | 87 m² | 107 m² | +20 m² +23% | 2025 |
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| 83, Hillview Avenue303 m away | 84 m² | 104 m² | +20 m² +24% | 2023 |
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| 153, Northumberland Avenue847 m away | 71 m² | 91 m² | +20 m² +28% | 2022 |
|---|
| 221, Osborne Road421 m away | 114 m² | 134 m² | +20 m² +18% | 2021 |
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| 93, Lyndhurst Drive775 m away | 82 m² | 102 m² | +20 m² +24% | 2021 |
|---|
| 14, Hamilton Road992 m away | 58 m² | 78 m² | +20 m² +34% | 2011 |
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| 94, Hillview Avenue303 m away | 105 m² | 124 m² | +19 m² +18% | 2026 |
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