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 1HG
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, Parkstone Avenue870 m away | 283 m² | 526 m² | +243 m² +86% | 2017 |
| 84, Harrow Drive286 m away | 189 m² | 414 m² | +225 m² +119% | 2012 |
| 4, Nelmes Road995 m away | 162 m² | 372 m² | +210 m² +130% | 2014 |
| 95, Harrow Drive312 m away | 140 m² | 340 m² | +200 m² +143% | 2024 |
| 12, Rockchase Gardens872 m away | 208 m² | 378 m² | +170 m² +82% | 2020 |
| 16, Berther Road860 m away | 146 m² | 292 m² | +146 m² +100% | 2026 |
| 73, Harrow Drive312 m away | 269 m² | 390 m² | +121 m² +45% | 2016 |
| 2a, Burntwood Avenue894 m away | 160 m² | 276 m² | +116 m² +73% | 2015 |
| 25, Warrington Gardens368 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.
| 87 m² |
| 194 m² |
| +107 m² +123% |
| 2024 |
| 59, Ardleigh Green Road922 m away | 124 m² | 227 m² | +103 m² +83% | 2017 |
|---|
| 22, Burntwood Avenue894 m away | 259 m² | 359 m² | +100 m² +39% | 2025 |
|---|
| 8, Walden Road560 m away | 153 m² | 251 m² | +98 m² +64% | 2025 |
|---|
| 65, Hillview Avenue508 m away | 65 m² | 162 m² | +97 m² +149% | 2017 |
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| 22, Catherine Road920 m away | 78 m² | 172 m² | +94 m² +121% | 2024 |
|---|
| 28, Boscombe Avenue374 m away | 93 m² | 186 m² | +93 m² +100% | 2026 |
|---|
| 18, Emerson Drive676 m away | 122 m² | 214 m² | +92 m² +75% | 2026 |
|---|
| 4, Windsor Road314 m away | 75 m² | 167 m² | +92 m² +123% | 2022 |
|---|
| 55, Kinfauns Avenue237 m away | 72 m² | 159 m² | +87 m² +121% | 2014 |
|---|
| 42, Elmhurst Drive593 m away | 83 m² | 168 m² | +85 m² +102% | 2021 |
|---|
| 12, Nelmes Road995 m away | 184 m² | 265 m² | +81 m² +44% | 2025 |
|---|
| 7, Berther Road785 m away | 106 m² | 186 m² | +80 m² +75% | 2020 |
|---|
| 38, Hyland Way618 m away | 110 m² | 190 m² | +80 m² +73% | 2019 |
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| 103, Heath Park Road872 m away | 219 m² | 298 m² | +79 m² +36% | 2023 |
|---|
| 1, Elmhurst Drive582 m away | 94 m² | 171 m² | +77 m² +82% | 2020 |
|---|
| 24, Grey Towers Avenue750 m away | 100 m² | 177 m² | +77 m² +77% | 2020 |
|---|
| 7, Nelmes Road995 m away | 258 m² | 333 m² | +75 m² +29% | 2018 |
|---|
| 4, Hyland Close590 m away | 86 m² | 161 m² | +75 m² +87% | 2017 |
|---|
| 147, Haynes Road913 m away | 134 m² | 208 m² | +74 m² +55% | 2021 |
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| 163, Haynes Road913 m away | 79 m² | 153 m² | +74 m² +94% | 2017 |
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| 274, Osborne Road484 m away | 108 m² | 180 m² | +72 m² +67% | 2024 |
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| 34, Boscombe Avenue495 m away | 82 m² | 153 m² | +71 m² +87% | 2025 |
|---|
| 24, Hazel Rise450 m away | 96 m² | 165 m² | +69 m² +72% | 2020 |
|---|
| 96, Harrow Drive286 m away | 138 m² | 206 m² | +68 m² +49% | 2024 |
|---|
| 6, Burntwood Avenue894 m away | 323 m² | 390 m² | +67 m² +21% | 2014 |
|---|
| 97, Norman Road644 m away | 65 m² | 131 m² | +66 m² +102% | 2026 |
|---|
| 10, Candover Road973 m away | 141 m² | 207 m² | +66 m² +47% | 2013 |
|---|
| 100, Cranham Road218 m away | 65 m² | 130 m² | +65 m² +100% | 2016 |
|---|
| 8, The Woodfines725 m away | 199 m² | 264 m² | +65 m² +33% | 2016 |
|---|
| 33, Grey Towers Avenue750 m away | 89 m² | 153 m² | +64 m² +72% | 2018 |
|---|
| 12, Harrow Drive600 m away | 108 m² | 171 m² | +63 m² +58% | 2015 |
|---|
| 2, Warrington Gardens462 m away | 73 m² | 135 m² | +62 m² +85% | 2026 |
|---|
| 235, Brentwood Road828 m away | 98 m² | 160 m² | +62 m² +63% | 2024 |
|---|
| 40, Percival Road191 m away | 45 m² | 106 m² | +61 m² +136% | 2023 |
|---|
| 88, Hyland Way484 m away | 87 m² | 148 m² | +61 m² +70% | 2023 |
|---|
| 94, Northumberland Avenue972 m away | 61 m² | 122 m² | +61 m² +100% | 2021 |
|---|
| 121, Bush Elms Road678 m away | 87 m² | 147 m² | +60 m² +69% | 2019 |
|---|
| 12, Slewins Lane690 m away | 77 m² | 137 m² | +60 m² +78% | 2014 |
|---|
| 28, Wykeham Avenue513 m away | 102 m² | 161 m² | +59 m² +58% | 2023 |
|---|
| 26, Candover Road973 m away | 82 m² | 140 m² | +58 m² +71% | 2020 |
|---|
| 8, Windsor Road314 m away | 73 m² | 130 m² | +57 m² +78% | 2023 |
|---|
| 56, Harrow Drive286 m away | 275 m² | 332 m² | +57 m² +21% | 2018 |
|---|
| 59, Elmhurst Drive266 m away | 98 m² | 155 m² | +57 m² +58% | 2015 |
|---|
| 1, Cromer Road556 m away | 89 m² | 145 m² | +56 m² +63% | 2024 |
|---|
| 102, Osborne Road133 m away | 84 m² | 140 m² | +56 m² +67% | 2021 |
|---|
| 1, Mellowes Road961 m away | 88 m² | 144 m² | +56 m² +64% | 2020 |
|---|
| 34, Great Gardens Road451 m away | 66 m² | 121 m² | +55 m² +83% | 2017 |
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| 114, Hillview Avenue145 m away | 53 m² | 107 m² | +54 m² +102% | 2026 |
|---|
| 8, Rockingham Avenue364 m away | 139 m² | 193 m² | +54 m² +39% | 2020 |
|---|
| 54, Brooklands Gardens383 m away | 72 m² | 125 m² | +53 m² +74% | 2025 |
|---|
| 100, Hillview Avenue278 m away | 135 m² | 188 m² | +53 m² +39% | 2022 |
|---|
| 24, Lyndhurst Drive654 m away | 88 m² | 141 m² | +53 m² +60% | 2020 |
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| 5, Lytton Road696 m away | 85 m² | 138 m² | +53 m² +62% | 2019 |
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| 117, Norman Road644 m away | 53 m² | 105 m² | +52 m² +98% | 2021 |
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| 1, Boscombe Avenue374 m away | 78 m² | 129 m² | +51 m² +65% | 2023 |
|---|
| 28, Osborne Road584 m away | 105 m² | 156 m² | +51 m² +49% | 2019 |
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| 38, Hillview Avenue523 m away | 91 m² | 141 m² | +50 m² +55% | 2024 |
|---|
| 19, Hillview Avenue508 m away | 107 m² | 157 m² | +50 m² +47% | 2021 |
|---|
| 111a, Hillview Avenue278 m away | 126 m² | 175 m² | +49 m² +39% | 2026 |
|---|
| 73, Slewins Lane540 m away | 153 m² | 202 m² | +49 m² +32% | 2025 |
|---|
| 52, Harrow Drive286 m away | 220 m² | 268 m² | +48 m² +22% | 2025 |
|---|
| 1, Catherine Road920 m away | 72 m² | 120 m² | +48 m² +67% | 2024 |
|---|
| 23, Harrow Drive580 m away | 139 m² | 187 m² | +48 m² +35% | 2012 |
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| 18, Bush Elms Road984 m away | 78 m² | 125 m² | +47 m² +60% | 2026 |
|---|
| 66, North Street890 m away | 195 m² | 242 m² | +47 m² +24% | 2022 |
|---|
| Flat 8, Waterwell Court, 3a, Manor Avenue850 m away | 52 m² | 98 m² | +46 m² +88% | 2026 |
|---|
| 252, Osborne Road484 m away | 81 m² | 126 m² | +45 m² +56% | 2024 |
|---|
| 21, Lytton Road696 m away | 133 m² | 178 m² | +45 m² +34% | 2024 |
|---|
| 46, Percival Road191 m away | 46 m² | 91 m² | +45 m² +98% | 2019 |
|---|
| 7, Slewins Lane690 m away | 158 m² | 202 m² | +44 m² +28% | 2020 |
|---|
| 119, Northumberland Avenue962 m away | 60 m² | 104 m² | +44 m² +73% | 2019 |
|---|
| 3, Harrow Close854 m away | 86 m² | 129 m² | +43 m² +50% | 2026 |
|---|
| 88, Cranham Road218 m away | 90 m² | 133 m² | +43 m² +48% | 2024 |
|---|
| 48, Southdown Road792 m away | 98 m² | 141 m² | +43 m² +44% | 2024 |
|---|
| 14, Walden Way566 m away | 207 m² | 249 m² | +42 m² +20% | 2024 |
|---|
| 53, Hazelmere Gardens513 m away | 127 m² | 169 m² | +42 m² +33% | 2022 |
|---|
| 4, Emerson Drive676 m away | 120 m² | 162 m² | +42 m² +35% | 2020 |
|---|
| 8, Maybrick Road307 m away | 115 m² | 156 m² | +41 m² +36% | 2022 |
|---|
| 5a, Nelmes Road995 m away | 235 m² | 276 m² | +41 m² +17% | 2015 |
|---|
| 6, Thorncroft512 m away | 65 m² | 105 m² | +40 m² +62% | 2026 |
|---|
| 26, Purbeck Road869 m away | 93 m² | 133 m² | +40 m² +43% | 2025 |
|---|
| 4, Harrow Close854 m away | 101 m² | 141 m² | +40 m² +40% | 2023 |
|---|
| 7, Cranham Road391 m away | 85 m² | 125 m² | +40 m² +47% | 2014 |
|---|
| 1, Margaret Close775 m away | 95 m² | 135 m² | +40 m² +42% | 2014 |
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| 166, Lyndhurst Drive312 m away | 95 m² | 134 m² | +39 m² +41% | 2026 |
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| 65a, Southdown Road823 m away | 95 m² | 134 m² | +39 m² +41% | 2016 |
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| 7, Thorncroft512 m away | 65 m² | 103 m² | +38 m² +58% | 2026 |
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| Flat 7, Noble Court, 126, North Street797 m away | 45 m² | 83 m² | +38 m² +84% | 2026 |
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| 29, Keswick Avenue780 m away | 92 m² | 130 m² | +38 m² +41% | 2025 |
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| 27, Slewins Lane690 m away | 88 m² | 126 m² | +38 m² +43% | 2024 |
|---|
| 23, Rossall Close813 m away | 115 m² | 153 m² | +38 m² +33% | 2022 |
|---|
| 62, Great Gardens Road345 m away | 72 m² | 110 m² | +38 m² +53% | 2021 |
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| 13, Warrington Gardens462 m away | 76 m² | 114 m² | +38 m² +50% | 2014 |
|---|
| 18, Thorncroft512 m away | 98 m² | 135 m² | +37 m² +38% | 2024 |
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| 9, Brooklands Gardens381 m away | 100 m² | 137 m² | +37 m² +37% | 2016 |
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| A home on Salisbury Road747 m away | 32 m² | 68 m² | +36 m² +113% | 2026 |
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| 32, Boscombe Avenue374 m away | 113 m² | 149 m² | +36 m² +32% | 2025 |
|---|
| 67, Cranham Road391 m away | 82 m² | 118 m² | +36 m² +44% | 2024 |
|---|
| 105, Hyland Way514 m away | 92 m² | 128 m² | +36 m² +39% | 2024 |
|---|
| 34, Harrow Drive600 m away | 232 m² | 268 m² | +36 m² +16% | 2020 |
|---|
| 26, Mellowes Road961 m away | 88 m² | 124 m² | +36 m² +41% | 2019 |
|---|
| 28, Whitethorn Gardens430 m away | 84 m² | 119 m² | +35 m² +42% | 2026 |
|---|
| 32, Hazel Rise450 m away | 68 m² | 103 m² | +35 m² +51% | 2021 |
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| 110, Hornchurch Road736 m away | 81 m² | 116 m² | +35 m² +43% | 2020 |
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| 29, Thorncroft512 m away | 132 m² | 167 m² | +35 m² +27% | 2016 |
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| 7, Northdown Road751 m away | 105 m² | 139 m² | +34 m² +32% | 2025 |
|---|
| 60, Cranham Road436 m away | 66 m² | 100 m² | +34 m² +52% | 2020 |
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| 24, The Mall855 m away | 53 m² | 87 m² | +34 m² +64% | 2016 |
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| 11, Lewis Road267 m away | 85 m² | 118 m² | +33 m² +39% | 2026 |
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| 51, Cromer Road556 m away | 103 m² | 136 m² | +33 m² +32% | 2025 |
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| 20, Pinecroft956 m away | 102 m² | 135 m² | +33 m² +32% | 2025 |
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| 210, Brentwood Road872 m away | 82 m² | 115 m² | +33 m² +40% | 2024 |
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| 127, Osborne Road133 m away | 82 m² | 115 m² | +33 m² +40% | 2017 |
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| 46, Salisbury Road747 m away | 68 m² | 101 m² | +33 m² +49% | 2016 |
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| 54, Norman Road785 m away | 73 m² | 106 m² | +33 m² +45% | 2014 |
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| 25a, Percival Road191 m away | 81 m² | 113 m² | +32 m² +40% | 2025 |
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| 25, Lyndhurst Drive639 m away | 101 m² | 133 m² | +32 m² +32% | 2025 |
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| 104, Osborne Road133 m away | 101 m² | 132 m² | +31 m² +31% | 2024 |
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| 32a, Northumberland Avenue733 m away | 113 m² | 144 m² | +31 m² +27% | 2023 |
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| 129, Victor Close918 m away | 76 m² | 106 m² | +30 m² +39% | 2026 |
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| 5, Hyland Close590 m away | 78 m² | 108 m² | +30 m² +38% | 2024 |
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| 82, Haynes Road898 m away | 116 m² | 146 m² | +30 m² +26% | 2024 |
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| 7, Percival Road191 m away | 67 m² | 97 m² | +30 m² +45% | 2023 |
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| 92, Northumberland Avenue972 m away | 101 m² | 131 m² | +30 m² +30% | 2022 |
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| 26, Wykeham Avenue513 m away | 111 m² | 141 m² | +30 m² +27% | 2019 |
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| 66, Grey Towers Avenue608 m away | 50 m² | 80 m² | +30 m² +60% | 2019 |
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| 8, Manor Crescent891 m away | 136 m² | 166 m² | +30 m² +22% | 2017 |
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| 120, Hillview Avenue145 m away | 77 m² | 106 m² | +29 m² +38% | 2025 |
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| 48, Harrow Drive286 m away | 109 m² | 138 m² | +29 m² +27% | 2024 |
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| 61, Bush Elms Road980 m away | 93 m² | 122 m² | +29 m² +31% | 2023 |
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| 9, Margaret Road844 m away | 105 m² | 134 m² | +29 m² +28% | 2021 |
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| 60, Rockingham Avenue364 m away | 127 m² | 156 m² | +29 m² +23% | 2020 |
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| 22, Boscombe Avenue374 m away | 92 m² | 121 m² | +29 m² +32% | 2020 |
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| 83, Bush Elms Road678 m away | 96 m² | 125 m² | +29 m² +30% | 2018 |
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| 5, Fanshawe Crescent384 m away | 146 m² | 175 m² | +29 m² +20% | 2017 |
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| 56, Great Gardens Road345 m away | 98 m² | 127 m² | +29 m² +30% | 2014 |
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| 73, Bush Elms Road678 m away | 86 m² | 114 m² | +28 m² +33% | 2026 |
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| 49, Hazelmere Gardens513 m away | 83 m² | 111 m² | +28 m² +34% | 2021 |
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| 31a, Butts Green Road663 m away | 38 m² | 66 m² | +28 m² +74% | 2013 |
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| 56, Norman Road785 m away | 181 m² | 209 m² | +28 m² +15% | 2013 |
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| 20, Emerson Drive676 m away | 152 m² | 179 m² | +27 m² +18% | 2026 |
|---|
| 2, Cheviot Road988 m away | 99 m² | 126 m² | +27 m² +27% | 2025 |
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| 234, Osborne Road484 m away | 99 m² | 126 m² | +27 m² +27% | 2024 |
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| 18, Kershaw Close914 m away | 100 m² | 127 m² | +27 m² +27% | 2024 |
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| 23, Grey Towers Avenue799 m away | 83 m² | 110 m² | +27 m² +33% | 2022 |
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| 25, Hillcrest Road989 m away | 99 m² | 126 m² | +27 m² +27% | 2020 |
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| 1, Ardleigh Green Road705 m away | 105 m² | 132 m² | +27 m² +26% | 2018 |
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| 8, Whitethorn Gardens430 m away | 87 m² | 114 m² | +27 m² +31% | 2017 |
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| 6, Slewins Lane690 m away | 51 m² | 78 m² | +27 m² +53% | 2017 |
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| 44, Cranham Road436 m away | 98 m² | 125 m² | +27 m² +28% | 2012 |
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| 50, Hillview Avenue523 m away | 84 m² | 111 m² | +27 m² +32% | 2011 |
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| 371, Brentwood Road717 m away | 87 m² | 114 m² | +27 m² +31% | 2010 |
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| 109a, Hillview Avenue278 m away | 88 m² | 114 m² | +26 m² +30% | 2022 |
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| 41, Cavenham Gardens620 m away | 77 m² | 103 m² | +26 m² +34% | 2021 |
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| 48, Boscombe Avenue495 m away | 96 m² | 122 m² | +26 m² +27% | 2019 |
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| 76, Hillview Avenue523 m away | 68 m² | 94 m² | +26 m² +38% | 2016 |
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| 1, Elms Close485 m away | 116 m² | 141 m² | +25 m² +22% | 2023 |
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| 23, Lawrence Road756 m away | 158 m² | 183 m² | +25 m² +16% | 2015 |
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| 93, Norman Road644 m away | 63 m² | 87 m² | +24 m² +38% | 2026 |
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| 23a, Butts Green Road663 m away | 40 m² | 64 m² | +24 m² +60% | 2025 |
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| 181, Osborne Road153 m away | 90 m² | 114 m² | +24 m² +27% | 2024 |
|---|
| 102, Northumberland Avenue972 m away | 67 m² | 91 m² | +24 m² +36% | 2023 |
|---|
| 4, Manor Crescent891 m away | 152 m² | 176 m² | +24 m² +16% | 2022 |
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| 101, Heath Park Road872 m away | 118 m² | 141 m² | +23 m² +19% | 2023 |
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| 90, Osborne Road133 m away | 104 m² | 127 m² | +23 m² +22% | 2019 |
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| 27a, Osborne Road560 m away | 143 m² | 166 m² | +23 m² +16% | 2019 |
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| 6b, Slewins Lane690 m away | 51 m² | 74 m² | +23 m² +45% | 2018 |
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| 64, Southdown Road792 m away | 77 m² | 100 m² | +23 m² +30% | 2015 |
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| 1, Savoy Grove643 m away | 146 m² | 169 m² | +23 m² +16% | 2011 |
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| 80, Heath Park Road929 m away | 43 m² | 66 m² | +23 m² +53% | 2009 |
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| 78, North Street890 m away | 107 m² | 129 m² | +22 m² +21% | 2026 |
|---|
| 23, Clive Road714 m away | 88 m² | 110 m² | +22 m² +25% | 2025 |
|---|
| 60, Grosvenor Drive623 m away | 70 m² | 92 m² | +22 m² +31% | 2023 |
|---|
| 58, Billet Lane773 m away | 39 m² | 61 m² | +22 m² +56% | 2021 |
|---|
| 17, Victor Close997 m away | 43 m² | 65 m² | +22 m² +51% | 2021 |
|---|
| 18, Mellowes Road961 m away | 88 m² | 110 m² | +22 m² +25% | 2018 |
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| 132, Hillview Avenue145 m away | 45 m² | 67 m² | +22 m² +49% | 2013 |
|---|
| 4, Academy Fields Road939 m away | 113 m² | 135 m² | +22 m² +19% | 2013 |
|---|
| 114, Grosvenor Drive186 m away | 62 m² | 84 m² | +22 m² +35% | 2011 |
|---|
| 115, Northumberland Avenue962 m away | 58 m² | 79 m² | +21 m² +36% | 2023 |
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| 7, Regency Gardens408 m away | 134 m² | 155 m² | +21 m² +16% | 2021 |
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| 13, Kingsley Court620 m away | 27 m² | 48 m² | +21 m² +78% | 2021 |
|---|
| Flat 11, Masters Court, 3, Academy Fields Road967 m away | 46 m² | 67 m² | +21 m² +46% | 2021 |
|---|
| 12, Pinecroft956 m away | 73 m² | 94 m² | +21 m² +29% | 2019 |
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| 330, Brentwood Road625 m away | 102 m² | 123 m² | +21 m² +21% | 2018 |
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| 35, Maybrick Road420 m away | 96 m² | 116 m² | +20 m² +21% | 2026 |
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| 16, Keith Way949 m away | 102 m² | 122 m² | +20 m² +20% | 2026 |
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| 8, Margaret Road844 m away | 87 m² | 107 m² | +20 m² +23% | 2025 |
|---|
| 83, Hillview Avenue278 m away | 84 m² | 104 m² | +20 m² +24% | 2023 |
|---|
| 221, Osborne Road153 m away | 114 m² | 134 m² | +20 m² +18% | 2021 |
|---|
| 93, Lyndhurst Drive438 m away | 82 m² | 102 m² | +20 m² +24% | 2021 |
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