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 RM12 4JF
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 |
|---|---|---|---|---|
| 23, The Avenue395 m away | 87 m² | 191 m² | +104 m² +120% | 2022 |
| 28, Boscombe Avenue877 m away | 93 m² | 186 m² | +93 m² +100% | 2026 |
| 18, Emerson Drive771 m away | 122 m² | 214 m² | +92 m² +75% | 2026 |
| 4, Windsor Road828 m away | 75 m² | 167 m² | +92 m² +123% | 2022 |
| 62, Devonshire Road333 m away | 74 m² | 163 m² | +89 m² +120% | 2025 |
| 42, Elmhurst Drive647 m away | 83 m² | 168 m² | +85 m² +102% | 2021 |
| 35, Belmont Road664 m away | 60 m² | 142 m² | +82 m² +137% | 2015 |
| 106, Stanley Road193 m away | 69 m² | 150 m² | +81 m² +117% | 2026 |
| 38, Hyland Way985 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.
| 110 m² |
| 190 m² |
| +80 m² +73% |
| 2019 |
| 7, Victor Gardens377 m away | 55 m² | 133 m² | +78 m² +142% | 2025 |
|---|
| 24, Grey Towers Avenue454 m away | 100 m² | 177 m² | +77 m² +77% | 2020 |
|---|
| 1, Elmhurst Drive688 m away | 94 m² | 171 m² | +77 m² +82% | 2020 |
|---|
| 34, Randall Drive978 m away | 74 m² | 150 m² | +76 m² +103% | 2025 |
|---|
| 4, Hyland Close909 m away | 86 m² | 161 m² | +75 m² +87% | 2017 |
|---|
| 136, Abbs Cross Lane400 m away | 147 m² | 220 m² | +73 m² +50% | 2022 |
|---|
| 25, Lambourne Gardens480 m away | 60 m² | 132 m² | +72 m² +120% | 2025 |
|---|
| 274, Osborne Road935 m away | 108 m² | 180 m² | +72 m² +67% | 2024 |
|---|
| 34, Boscombe Avenue722 m away | 82 m² | 153 m² | +71 m² +87% | 2025 |
|---|
| 24, Stanley Road343 m away | 98 m² | 168 m² | +70 m² +71% | 2018 |
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| 77, Bruce Avenue0 m away | 55 m² | 124 m² | +69 m² +125% | 2018 |
|---|
| 81, Randall Drive945 m away | 54 m² | 121 m² | +67 m² +124% | 2020 |
|---|
| 10, Candover Road881 m away | 141 m² | 207 m² | +66 m² +47% | 2013 |
|---|
| 1, Creasey Close685 m away | 84 m² | 149 m² | +65 m² +77% | 2019 |
|---|
| 33, Grey Towers Avenue454 m away | 89 m² | 153 m² | +64 m² +72% | 2018 |
|---|
| 86, Ravenscourt Grove961 m away | 84 m² | 147 m² | +63 m² +75% | 2026 |
|---|
| 12, Harrow Drive728 m away | 108 m² | 171 m² | +63 m² +58% | 2015 |
|---|
| 22, Babington Road961 m away | 58 m² | 121 m² | +63 m² +109% | 2015 |
|---|
| 69, Benhurst Avenue879 m away | 62 m² | 124 m² | +62 m² +100% | 2019 |
|---|
| 37, Warren Drive770 m away | 75 m² | 133 m² | +58 m² +77% | 2024 |
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| 26, Candover Road881 m away | 82 m² | 140 m² | +58 m² +71% | 2020 |
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| 8, Windsor Road828 m away | 73 m² | 130 m² | +57 m² +78% | 2023 |
|---|
| 59, Elmhurst Drive952 m away | 98 m² | 155 m² | +57 m² +58% | 2015 |
|---|
| 1, Cromer Road812 m away | 89 m² | 145 m² | +56 m² +63% | 2024 |
|---|
| 48, Suttons Avenue603 m away | 58 m² | 113 m² | +55 m² +95% | 2025 |
|---|
| 6, Mavis Grove643 m away | 129 m² | 183 m² | +54 m² +42% | 2024 |
|---|
| 113, Abbs Cross Lane278 m away | 152 m² | 206 m² | +54 m² +36% | 2015 |
|---|
| 21, Chiltern Gardens754 m away | 67 m² | 120 m² | +53 m² +79% | 2022 |
|---|
| 24, Lyndhurst Drive498 m away | 88 m² | 141 m² | +53 m² +60% | 2020 |
|---|
| 3, Sunrise Avenue655 m away | 86 m² | 139 m² | +53 m² +62% | 2016 |
|---|
| 13, Devonshire Road377 m away | 204 m² | 256 m² | +52 m² +25% | 2023 |
|---|
| 132, Alma Avenue999 m away | 70 m² | 122 m² | +52 m² +74% | 2014 |
|---|
| 1, Boscombe Avenue877 m away | 78 m² | 129 m² | +51 m² +65% | 2023 |
|---|
| 85, Stanley Road236 m away | 71 m² | 121 m² | +50 m² +70% | 2024 |
|---|
| 52, Mill Park Avenue749 m away | 147 m² | 197 m² | +50 m² +34% | 2024 |
|---|
| 35, Guardian Close899 m away | 89 m² | 139 m² | +50 m² +56% | 2014 |
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| 32, Guardian Close899 m away | 77 m² | 125 m² | +48 m² +62% | 2025 |
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| 8, Bowden Drive832 m away | 108 m² | 156 m² | +48 m² +44% | 2024 |
|---|
| 23, Harrow Drive788 m away | 139 m² | 187 m² | +48 m² +35% | 2012 |
|---|
| 66, North Street807 m away | 195 m² | 242 m² | +47 m² +24% | 2022 |
|---|
| 101, Suttons Avenue570 m away | 82 m² | 128 m² | +46 m² +56% | 2020 |
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| 6, Forbes Close773 m away | 85 m² | 131 m² | +46 m² +54% | 2019 |
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| 9, Sandown Avenue305 m away | 75 m² | 120 m² | +45 m² +60% | 2026 |
|---|
| 252, Osborne Road935 m away | 81 m² | 126 m² | +45 m² +56% | 2024 |
|---|
| 6, Glamis Drive955 m away | 40 m² | 85 m² | +45 m² +113% | 2019 |
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| 31, Cumberland Avenue813 m away | 98 m² | 142 m² | +44 m² +45% | 2017 |
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| 6, Lodge Court723 m away | 67 m² | 111 m² | +44 m² +66% | 2012 |
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| 3, Harrow Close783 m away | 86 m² | 129 m² | +43 m² +50% | 2026 |
|---|
| 4, Emerson Drive771 m away | 120 m² | 162 m² | +42 m² +35% | 2020 |
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| 120, Alma Avenue999 m away | 48 m² | 89 m² | +41 m² +85% | 2025 |
|---|
| 33, Mill Park Avenue749 m away | 114 m² | 154 m² | +40 m² +35% | 2025 |
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| 29, Guardian Close899 m away | 82 m² | 122 m² | +40 m² +49% | 2025 |
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| 79, Bruce Avenue0 m away | 75 m² | 115 m² | +40 m² +53% | 2023 |
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| 4, Harrow Close783 m away | 101 m² | 141 m² | +40 m² +40% | 2023 |
|---|
| 11, Connaught Road658 m away | 77 m² | 117 m² | +40 m² +52% | 2018 |
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| 166, Lyndhurst Drive892 m away | 95 m² | 134 m² | +39 m² +41% | 2026 |
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| 15, Benhurst Avenue879 m away | 98 m² | 136 m² | +38 m² +39% | 2026 |
|---|
| Flat 7, Noble Court, 126, North Street948 m away | 45 m² | 83 m² | +38 m² +84% | 2026 |
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| 29, Keswick Avenue529 m away | 92 m² | 130 m² | +38 m² +41% | 2025 |
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| 41, The Avenue240 m away | 82 m² | 120 m² | +38 m² +46% | 2024 |
|---|
| 25, Abbs Cross Gardens187 m away | 75 m² | 112 m² | +37 m² +49% | 2026 |
|---|
| 32, Boscombe Avenue877 m away | 113 m² | 149 m² | +36 m² +32% | 2025 |
|---|
| 118, Bruce Avenue356 m away | 72 m² | 108 m² | +36 m² +50% | 2022 |
|---|
| 34, Harrow Drive728 m away | 232 m² | 268 m² | +36 m² +16% | 2020 |
|---|
| 65, Bruce Avenue0 m away | 71 m² | 106 m² | +35 m² +49% | 2025 |
|---|
| 110, Hornchurch Road608 m away | 81 m² | 116 m² | +35 m² +43% | 2020 |
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| 100, Kenilworth Gardens798 m away | 80 m² | 114 m² | +34 m² +43% | 2026 |
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| 2, Bowden Drive832 m away | 141 m² | 175 m² | +34 m² +24% | 2026 |
|---|
| 64, Station Lane506 m away | 64 m² | 98 m² | +34 m² +53% | 2025 |
|---|
| 20, Randall Drive978 m away | 55 m² | 89 m² | +34 m² +62% | 2022 |
|---|
| 24, The Mall727 m away | 53 m² | 87 m² | +34 m² +64% | 2016 |
|---|
| 51, Cromer Road812 m away | 103 m² | 136 m² | +33 m² +32% | 2025 |
|---|
| 25, Lyndhurst Drive520 m away | 101 m² | 133 m² | +32 m² +32% | 2025 |
|---|
| 65, Suttons Avenue573 m away | 76 m² | 108 m² | +32 m² +42% | 2024 |
|---|
| 104, Suttons Avenue552 m away | 66 m² | 98 m² | +32 m² +48% | 2023 |
|---|
| 17, Guardian Close899 m away | 51 m² | 83 m² | +32 m² +63% | 2023 |
|---|
| 7, Parish Close878 m away | 132 m² | 164 m² | +32 m² +24% | 2022 |
|---|
| 31, Guardian Close899 m away | 54 m² | 85 m² | +31 m² +57% | 2018 |
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| 129, Victor Close238 m away | 76 m² | 106 m² | +30 m² +39% | 2026 |
|---|
| 5, Hyland Close909 m away | 78 m² | 108 m² | +30 m² +38% | 2024 |
|---|
| 66, Grey Towers Avenue584 m away | 50 m² | 80 m² | +30 m² +60% | 2019 |
|---|
| 37, Glebe Way940 m away | 93 m² | 123 m² | +30 m² +32% | 2017 |
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| 70, Stanley Road193 m away | 101 m² | 130 m² | +29 m² +29% | 2025 |
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| 23, Warriner Avenue534 m away | 108 m² | 137 m² | +29 m² +27% | 2024 |
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| 80, Aldwych Close984 m away | 90 m² | 119 m² | +29 m² +32% | 2023 |
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| 145, Bruce Avenue356 m away | 124 m² | 153 m² | +29 m² +23% | 2020 |
|---|
| 22, Boscombe Avenue877 m away | 92 m² | 121 m² | +29 m² +32% | 2020 |
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| Swan House, 54, Station Lane506 m away | 34 m² | 63 m² | +29 m² +85% | 2017 |
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| 170, Abbs Cross Lane400 m away | 85 m² | 114 m² | +29 m² +34% | 2016 |
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| 9, Connaught Road658 m away | 78 m² | 106 m² | +28 m² +36% | 2023 |
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| 41, Randall Drive978 m away | 72 m² | 100 m² | +28 m² +39% | 2021 |
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| 12a, Westland Avenue778 m away | 60 m² | 88 m² | +28 m² +47% | 2018 |
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| 20, Emerson Drive771 m away | 152 m² | 179 m² | +27 m² +18% | 2026 |
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| 234, Osborne Road935 m away | 99 m² | 126 m² | +27 m² +27% | 2024 |
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| 18, Kershaw Close971 m away | 100 m² | 127 m² | +27 m² +27% | 2024 |
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| 23, Grey Towers Avenue362 m away | 83 m² | 110 m² | +27 m² +33% | 2022 |
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| 21a, Suttons Lane908 m away | 49 m² | 76 m² | +27 m² +55% | 2019 |
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| 18, Apollo Close936 m away | 78 m² | 105 m² | +27 m² +35% | 2015 |
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| 10, Standen Avenue981 m away | 80 m² | 106 m² | +26 m² +33% | 2024 |
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| 55, Bruce Avenue0 m away | 62 m² | 88 m² | +26 m² +42% | 2023 |
|---|
| 48, Boscombe Avenue722 m away | 96 m² | 122 m² | +26 m² +27% | 2019 |
|---|
| 1, Glebe Way882 m away | 104 m² | 129 m² | +25 m² +24% | 2026 |
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| 14, Chiltern Gardens754 m away | 69 m² | 94 m² | +25 m² +36% | 2025 |
|---|
| 11, Babington Road961 m away | 107 m² | 132 m² | +25 m² +23% | 2025 |
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| 11, Mavis Grove643 m away | 137 m² | 162 m² | +25 m² +18% | 2020 |
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| 25, Aldwych Close984 m away | 101 m² | 126 m² | +25 m² +25% | 2014 |
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| 1, Napier Close690 m away | 117 m² | 142 m² | +25 m² +21% | 2013 |
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| 59, Abbs Cross Lane152 m away | 74 m² | 98 m² | +24 m² +32% | 2026 |
|---|
| 89, Stanley Road236 m away | 65 m² | 89 m² | +24 m² +37% | 2012 |
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| 18, Wallis Close592 m away | 97 m² | 120 m² | +23 m² +24% | 2022 |
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| 34, Rural Close806 m away | 80 m² | 103 m² | +23 m² +29% | 2022 |
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| 78, North Street807 m away | 107 m² | 129 m² | +22 m² +21% | 2026 |
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| 94, The Avenue102 m away | 61 m² | 83 m² | +22 m² +36% | 2023 |
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| 60, Grosvenor Drive566 m away | 70 m² | 92 m² | +22 m² +31% | 2023 |
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| 17, Victor Close149 m away | 43 m² | 65 m² | +22 m² +51% | 2021 |
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| 58, Billet Lane809 m away | 39 m² | 61 m² | +22 m² +56% | 2021 |
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| 9, Glamis Drive955 m away | 49 m² | 71 m² | +22 m² +45% | 2021 |
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| 30, Wayside Avenue435 m away | 79 m² | 101 m² | +22 m² +28% | 2020 |
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| 1, Wedlake Close734 m away | 71 m² | 93 m² | +22 m² +31% | 2018 |
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| 114, Grosvenor Drive956 m away | 62 m² | 84 m² | +22 m² +35% | 2011 |
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| 8, Kenilworth Gardens744 m away | 114 m² | 135 m² | +21 m² +18% | 2026 |
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| 142, Stanley Road193 m away | 66 m² | 87 m² | +21 m² +32% | 2025 |
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| 41, Guardian Close899 m away | 100 m² | 121 m² | +21 m² +21% | 2025 |
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| 18, Guardian Close899 m away | 96 m² | 117 m² | +21 m² +22% | 2022 |
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| 7, Regency Gardens736 m away | 134 m² | 155 m² | +21 m² +16% | 2021 |
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| 67, Abbs Cross Lane152 m away | 71 m² | 92 m² | +21 m² +30% | 2018 |
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| 16, Keith Way826 m away | 102 m² | 122 m² | +20 m² +20% | 2026 |
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| Flat 68, Goldsmere Court, Fentiman Way692 m away | 44 m² | 64 m² | +20 m² +45% | 2023 |
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| 21, Wallis Close592 m away | 86 m² | 106 m² | +20 m² +23% | 2021 |
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| 93, Lyndhurst Drive704 m away | 82 m² | 102 m² | +20 m² +24% | 2021 |
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| 29, Brendans Close751 m away | 58 m² | 78 m² | +20 m² +34% | 2018 |
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| 16, Mansfield Gardens415 m away | 86 m² | 106 m² | +20 m² +23% | 2015 |
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| 57, Bruce Avenue0 m away | 94 m² | 113 m² | +19 m² +20% | 2026 |
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| 17, Suttons Avenue603 m away | 76 m² | 95 m² | +19 m² +25% | 2025 |
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| 55, Glebe Way940 m away | 91 m² | 110 m² | +19 m² +21% | 2025 |
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| 34, Westland Avenue898 m away | 90 m² | 109 m² | +19 m² +21% | 2023 |
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| 174, Abbs Cross Lane400 m away | 56 m² | 75 m² | +19 m² +34% | 2019 |
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| 33, Aldwych Close984 m away | 80 m² | 99 m² | +19 m² +24% | 2018 |
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| 39, Warriner Avenue534 m away | 88 m² | 106 m² | +18 m² +20% | 2020 |
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| 26, Link Way855 m away | 115 m² | 133 m² | +18 m² +16% | 2020 |
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| 15, Kershaw Close971 m away | 93 m² | 111 m² | +18 m² +19% | 2020 |
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| 36, Latimer Drive891 m away | 41 m² | 59 m² | +18 m² +44% | 2018 |
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| 112, Alma Avenue999 m away | 65 m² | 83 m² | +18 m² +28% | 2013 |
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| 26, Stanley Road343 m away | 99 m² | 116 m² | +17 m² +17% | 2025 |
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| 9, Wallis Close592 m away | 92 m² | 109 m² | +17 m² +18% | 2024 |
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| 20, Priory Mews847 m away | 51 m² | 68 m² | +17 m² +33% | 2022 |
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| 115, Suttons Avenue570 m away | 81 m² | 98 m² | +17 m² +21% | 2017 |
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| 5, Sandown Avenue305 m away | 57 m² | 74 m² | +17 m² +30% | 2016 |
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| 46, Randall Drive945 m away | 59 m² | 76 m² | +17 m² +29% | 2012 |
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| 27, Billet Lane480 m away | 50 m² | 67 m² | +17 m² +34% | 2009 |
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| 16, Dorrington Gardens374 m away | 69 m² | 85 m² | +16 m² +23% | 2023 |
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| 25, Windsor Road828 m away | 87 m² | 103 m² | +16 m² +18% | 2022 |
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| 14, Elm Park Avenue919 m away | 66 m² | 82 m² | +16 m² +24% | 2022 |
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| 127, Grosvenor Drive978 m away | 67 m² | 83 m² | +16 m² +24% | 2022 |
|---|
| 4, Henderson Close584 m away | 86 m² | 102 m² | +16 m² +19% | 2021 |
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| 3, Lambourne Gardens480 m away | 68 m² | 84 m² | +16 m² +24% | 2016 |
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| 139, Kenilworth Gardens798 m away | 63 m² | 79 m² | +16 m² +25% | 2012 |
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| 140, North Street948 m away | 37 m² | 52 m² | +15 m² +41% | 2023 |
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| 158, Devonshire Road375 m away | 85 m² | 100 m² | +15 m² +18% | 2022 |
|---|
| 95, Randall Drive945 m away | 64 m² | 79 m² | +15 m² +23% | 2021 |
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| 19, Kershaw Close971 m away | 85 m² | 100 m² | +15 m² +18% | 2019 |
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| 126, Alma Avenue999 m away | 83 m² | 98 m² | +15 m² +18% | 2017 |
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| 6, Abbs Cross Gardens72 m away | 68 m² | 83 m² | +15 m² +22% | 2016 |
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| 144, Grosvenor Drive956 m away | 89 m² | 104 m² | +15 m² +17% | 2012 |
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