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 N3 2AB
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 |
|---|---|---|---|---|
| 36, Kenver Avenue979 m away | 104 m² | 239 m² | +135 m² +130% | 2012 |
| 87, Wentworth Avenue971 m away | 90 m² | 210 m² | +120 m² +133% | 2020 |
| 2, Claigmar Gardens553 m away | 106 m² | 214 m² | +108 m² +102% | 2025 |
| 89, Wentworth Avenue971 m away | 111 m² | 210 m² | +99 m² +89% | 2020 |
| 8, Redbourne Avenue617 m away | 185 m² | 280 m² | +95 m² +51% | 2018 |
| 38, Essex Park990 m away | 111 m² | 204 m² | +93 m² +84% | 2014 |
| 4, Eton Avenue850 m away | 112 m² | 200 m² | +88 m² +79% | 2019 |
| 46, Redbourne Avenue617 m away | 161 m² | 248 m² | +87 m² +54% | 2020 |
| 4, Park Avenue144 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.
| 75 m² |
| 161 m² |
| +86 m² +115% |
| 2025 |
| 132, Etchingham Park Road74 m away | 122 m² | 202 m² | +80 m² +66% | 2024 |
|---|
| 26, Claverley Grove588 m away | 109 m² | 186 m² | +77 m² +71% | 2020 |
|---|
| 68, Queens Avenue302 m away | 116 m² | 192 m² | +76 m² +66% | 2024 |
|---|
| 43, Etchingham Park Road492 m away | 205 m² | 281 m² | +76 m² +37% | 2022 |
|---|
| 82, Lichfield Grove675 m away | 102 m² | 177 m² | +75 m² +74% | 2018 |
|---|
| 1, Windermere Avenue999 m away | 137 m² | 210 m² | +73 m² +53% | 2021 |
|---|
| 45, Redbourne Avenue673 m away | 174 m² | 246 m² | +72 m² +41% | 2026 |
|---|
| 51, Bow Lane495 m away | 131 m² | 202 m² | +71 m² +54% | 2020 |
|---|
| 45, Holdenhurst Avenue570 m away | 104 m² | 173 m² | +69 m² +66% | 2022 |
|---|
| 96, Lichfield Grove675 m away | 106 m² | 174 m² | +68 m² +64% | 2023 |
|---|
| 9, Park Avenue144 m away | 98 m² | 166 m² | +68 m² +69% | 2020 |
|---|
| 58, Woodlands Avenue240 m away | 93 m² | 161 m² | +68 m² +73% | 2020 |
|---|
| 6, Tangle Tree Close662 m away | 105 m² | 171 m² | +66 m² +63% | 2026 |
|---|
| 2, Nursery Avenue273 m away | 55 m² | 120 m² | +65 m² +118% | 2012 |
|---|
| 110, East End Road841 m away | 115 m² | 179 m² | +64 m² +56% | 2018 |
|---|
| 19, Lankaster Gardens610 m away | 94 m² | 157 m² | +63 m² +67% | 2024 |
|---|
| 5, Willow Way554 m away | 112 m² | 173 m² | +61 m² +54% | 2014 |
|---|
| 35, Oakfield Road343 m away | 106 m² | 166 m² | +60 m² +57% | 2022 |
|---|
| 46, Hervey Close696 m away | 109 m² | 169 m² | +60 m² +55% | 2020 |
|---|
| 11, Cornwall Avenue811 m away | 99 m² | 158 m² | +59 m² +60% | 2024 |
|---|
| 26, Glebe Road370 m away | 52 m² | 111 m² | +59 m² +113% | 2019 |
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| 66, Rosemary Avenue510 m away | 101 m² | 157 m² | +56 m² +55% | 2024 |
|---|
| 3, St Pauls Way625 m away | 109 m² | 165 m² | +56 m² +51% | 2023 |
|---|
| 426, Long Lane952 m away | 81 m² | 137 m² | +56 m² +69% | 2019 |
|---|
| 9, Queens Road149 m away | 67 m² | 123 m² | +56 m² +84% | 2018 |
|---|
| 39, Howcroft Crescent985 m away | 96 m² | 152 m² | +56 m² +58% | 2014 |
|---|
| 15, Dudley Road564 m away | 105 m² | 160 m² | +55 m² +52% | 2026 |
|---|
| Flat 1, 14, Taunton Drive657 m away | 39 m² | 93 m² | +54 m² +138% | 2021 |
|---|
| 67, Brackenbury Road912 m away | 73 m² | 126 m² | +53 m² +73% | 2023 |
|---|
| 41, Eton Avenue809 m away | 131 m² | 184 m² | +53 m² +40% | 2019 |
|---|
| 20, Briarfield Avenue698 m away | 110 m² | 162 m² | +52 m² +47% | 2023 |
|---|
| 3, Bow Lane361 m away | 101 m² | 153 m² | +52 m² +51% | 2018 |
|---|
| 49, Princes Avenue596 m away | 146 m² | 198 m² | +52 m² +36% | 2013 |
|---|
| 21, Lankaster Gardens610 m away | 95 m² | 146 m² | +51 m² +54% | 2024 |
|---|
| 1, Princes Avenue596 m away | 160 m² | 211 m² | +51 m² +32% | 2019 |
|---|
| 95, Woodlands Avenue227 m away | 96 m² | 146 m² | +50 m² +52% | 2023 |
|---|
| 90, Woodlands Avenue240 m away | 98 m² | 148 m² | +50 m² +51% | 2022 |
|---|
| 56, Hamilton Road884 m away | 78 m² | 128 m² | +50 m² +64% | 2015 |
|---|
| 47, Fallow Court Avenue887 m away | 122 m² | 171 m² | +49 m² +40% | 2023 |
|---|
| 7, Queens Avenue264 m away | 113 m² | 162 m² | +49 m² +43% | 2016 |
|---|
| 75, Etchingham Park Road345 m away | 60 m² | 109 m² | +49 m² +82% | 2013 |
|---|
| 88, Queens Avenue302 m away | 113 m² | 161 m² | +48 m² +42% | 2026 |
|---|
| 29, East End Road782 m away | 161 m² | 207 m² | +46 m² +29% | 2025 |
|---|
| 1, Falkland Avenue794 m away | 153 m² | 199 m² | +46 m² +30% | 2020 |
|---|
| 32, Cornwall Avenue901 m away | 56 m² | 102 m² | +46 m² +82% | 2012 |
|---|
| 61, Wentworth Park820 m away | 123 m² | 168 m² | +45 m² +37% | 2023 |
|---|
| 76, Old Farm Road840 m away | 36 m² | 81 m² | +45 m² +125% | 2014 |
|---|
| 8, Elmfield Road896 m away | 90 m² | 134 m² | +44 m² +49% | 2025 |
|---|
| 40a, Manor View584 m away | 73 m² | 117 m² | +44 m² +60% | 2022 |
|---|
| 14, Chislehurst Avenue614 m away | 125 m² | 169 m² | +44 m² +35% | 2020 |
|---|
| 51, Manor Park Road931 m away | 95 m² | 139 m² | +44 m² +46% | 2018 |
|---|
| 47, Wentworth Park820 m away | 118 m² | 161 m² | +43 m² +36% | 2025 |
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| 44, Hamilton Road884 m away | 78 m² | 121 m² | +43 m² +55% | 2025 |
|---|
| 83, Brackenbury Road912 m away | 68 m² | 111 m² | +43 m² +63% | 2018 |
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| 114, Granville Road778 m away | 63 m² | 106 m² | +43 m² +68% | 2017 |
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| 47, Wentworth Avenue971 m away | 107 m² | 149 m² | +42 m² +39% | 2025 |
|---|
| 38, Claverley Grove588 m away | 123 m² | 165 m² | +42 m² +34% | 2021 |
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| 16, Hamilton Road884 m away | 75 m² | 116 m² | +41 m² +55% | 2024 |
|---|
| 23, Queens Avenue264 m away | 96 m² | 137 m² | +41 m² +43% | 2022 |
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| 22, Eton Avenue850 m away | 130 m² | 171 m² | +41 m² +32% | 2020 |
|---|
| 21, Windermere Avenue999 m away | 143 m² | 184 m² | +41 m² +29% | 2013 |
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| 101, East End Road999 m away | 47 m² | 88 m² | +41 m² +87% | 2012 |
|---|
| 101, Hervey Close545 m away | 99 m² | 139 m² | +40 m² +40% | 2019 |
|---|
| 29, Essex Park963 m away | 109 m² | 149 m² | +40 m² +37% | 2017 |
|---|
| 57, Long Lane166 m away | 34 m² | 74 m² | +40 m² +118% | 2015 |
|---|
| 47, Clifton Road305 m away | 101 m² | 140 m² | +39 m² +39% | 2025 |
|---|
| 93, Hervey Close545 m away | 95 m² | 134 m² | +39 m² +41% | 2021 |
|---|
| 24, Lankaster Gardens617 m away | 89 m² | 127 m² | +38 m² +43% | 2024 |
|---|
| 9a, Chislehurst Avenue614 m away | 80 m² | 118 m² | +38 m² +48% | 2020 |
|---|
| 12, Richmond Road604 m away | 85 m² | 122 m² | +37 m² +44% | 2025 |
|---|
| 1, Holdenhurst Avenue570 m away | 111 m² | 148 m² | +37 m² +33% | 2018 |
|---|
| 57, Bow Lane495 m away | 121 m² | 158 m² | +37 m² +31% | 2016 |
|---|
| 26, Cornwall Avenue901 m away | 139 m² | 176 m² | +37 m² +27% | 2013 |
|---|
| 13, Dickens Avenue215 m away | 34 m² | 70 m² | +36 m² +106% | 2026 |
|---|
| 31a, Sedgemere Avenue982 m away | 85 m² | 121 m² | +36 m² +42% | 2024 |
|---|
| 12, St Pauls Way625 m away | 108 m² | 144 m² | +36 m² +33% | 2020 |
|---|
| 10, Brownswell Road619 m away | 37 m² | 73 m² | +36 m² +97% | 2019 |
|---|
| 11, Woodlands Avenue227 m away | 61 m² | 97 m² | +36 m² +59% | 2018 |
|---|
| 142, Long Lane183 m away | 41 m² | 77 m² | +36 m² +88% | 2011 |
|---|
| 81, Station Road727 m away | 62 m² | 98 m² | +36 m² +58% | 2010 |
|---|
| 1, Richmond Road604 m away | 55 m² | 90 m² | +35 m² +64% | 2026 |
|---|
| 18, Hamilton Road884 m away | 71 m² | 106 m² | +35 m² +49% | 2026 |
|---|
| 46, Queens Avenue302 m away | 54 m² | 89 m² | +35 m² +65% | 2025 |
|---|
| 8, Holdenhurst Avenue601 m away | 94 m² | 129 m² | +35 m² +37% | 2025 |
|---|
| 16a, Gruneisen Road819 m away | 57 m² | 92 m² | +35 m² +61% | 2023 |
|---|
| 85, Etchingham Park Road345 m away | 137 m² | 172 m² | +35 m² +26% | 2021 |
|---|
| 22a, Sedgemere Avenue945 m away | 100 m² | 135 m² | +35 m² +35% | 2021 |
|---|
| 28, Lankaster Gardens617 m away | 91 m² | 126 m² | +35 m² +38% | 2020 |
|---|
| 83, Glebelands Close637 m away | 48 m² | 83 m² | +35 m² +73% | 2019 |
|---|
| Flat 33, Etchingham Court, Etchingham Park Road651 m away | 41 m² | 75 m² | +34 m² +83% | 2018 |
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| 15, Lichfield Grove886 m away | 95 m² | 129 m² | +34 m² +36% | 2016 |
|---|
| 17, Wentworth Avenue894 m away | 106 m² | 140 m² | +34 m² +32% | 2014 |
|---|
| 24, Vines Avenue422 m away | 103 m² | 136 m² | +33 m² +32% | 2023 |
|---|
| Flat 2, Chasewood Lodge, 366, Long Lane748 m away | 44 m² | 77 m² | +33 m² +75% | 2020 |
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| 26, Queens Avenue302 m away | 111 m² | 144 m² | +33 m² +30% | 2019 |
|---|
| 51, Brackenbury Road912 m away | 85 m² | 118 m² | +33 m² +39% | 2019 |
|---|
| 63, Woodlands Avenue227 m away | 112 m² | 145 m² | +33 m² +29% | 2018 |
|---|
| 31, Wentworth Avenue894 m away | 109 m² | 142 m² | +33 m² +30% | 2012 |
|---|
| Flat 2, 3, King Street Mews965 m away | 28 m² | 60 m² | +32 m² +114% | 2020 |
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| 6, Nursery Avenue273 m away | 54 m² | 86 m² | +32 m² +59% | 2018 |
|---|
| 4, Richmond Road604 m away | 109 m² | 140 m² | +31 m² +28% | 2024 |
|---|
| 84, Queens Avenue302 m away | 111 m² | 142 m² | +31 m² +28% | 2023 |
|---|
| 18a, Brownlow Road826 m away | 55 m² | 86 m² | +31 m² +56% | 2023 |
|---|
| 5, Hervey Close702 m away | 169 m² | 200 m² | +31 m² +18% | 2021 |
|---|
| 22, Hamilton Road884 m away | 62 m² | 93 m² | +31 m² +50% | 2021 |
|---|
| 40, Lankaster Gardens617 m away | 86 m² | 116 m² | +30 m² +35% | 2026 |
|---|
| 38, East End Road918 m away | 145 m² | 175 m² | +30 m² +21% | 2025 |
|---|
| 46, Sylvester Road520 m away | 95 m² | 125 m² | +30 m² +32% | 2024 |
|---|
| 8, Brackenbury Road922 m away | 79 m² | 109 m² | +30 m² +38% | 2024 |
|---|
| Flat 9, Adelphi Court, High Road858 m away | 39 m² | 68 m² | +29 m² +74% | 2025 |
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| 30, Fallow Court Avenue913 m away | 134 m² | 163 m² | +29 m² +22% | 2025 |
|---|
| 36a, Queens Avenue302 m away | 52 m² | 81 m² | +29 m² +56% | 2020 |
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| 381, High Road472 m away | 102 m² | 131 m² | +29 m² +28% | 2020 |
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| 10, Taunton Drive657 m away | 54 m² | 83 m² | +29 m² +54% | 2020 |
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| 36, Claverley Grove588 m away | 118 m² | 147 m² | +29 m² +25% | 2019 |
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| 92, Long Lane183 m away | 34 m² | 63 m² | +29 m² +85% | 2017 |
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| 25, Oakfield Road343 m away | 129 m² | 157 m² | +28 m² +22% | 2024 |
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| 36, Eton Avenue850 m away | 157 m² | 185 m² | +28 m² +18% | 2024 |
|---|
| 3, Station Close703 m away | 45 m² | 73 m² | +28 m² +62% | 2022 |
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| 344b, Long Lane748 m away | 52 m² | 80 m² | +28 m² +54% | 2021 |
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| 11, Brighton Road649 m away | 85 m² | 113 m² | +28 m² +33% | 2016 |
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| 45, Brackenbury Road912 m away | 80 m² | 108 m² | +28 m² +35% | 2016 |
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| 70, Hamilton Road884 m away | 70 m² | 98 m² | +28 m² +40% | 2015 |
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| 94, Station Road579 m away | 37 m² | 65 m² | +28 m² +76% | 2009 |
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| 40, Trinity Road932 m away | 74 m² | 101 m² | +27 m² +36% | 2021 |
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| 42, Hamilton Road884 m away | 80 m² | 107 m² | +27 m² +34% | 2020 |
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| Flat 7, 322, High Road625 m away | 48 m² | 75 m² | +27 m² +56% | 2017 |
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| 22a, Woodlands Avenue240 m away | 51 m² | 78 m² | +27 m² +53% | 2016 |
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| 60, Hamilton Road884 m away | 97 m² | 123 m² | +26 m² +27% | 2024 |
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| 129a, Station Road593 m away | 49 m² | 75 m² | +26 m² +53% | 2022 |
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| 52, Queens Avenue302 m away | 122 m² | 148 m² | +26 m² +21% | 2015 |
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| 42, Old Farm Road840 m away | 95 m² | 121 m² | +26 m² +27% | 2015 |
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| Flat 1, 53, Long Lane166 m away | 61 m² | 86 m² | +25 m² +41% | 2023 |
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| 37, Bow Lane361 m away | 130 m² | 155 m² | +25 m² +19% | 2023 |
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| Flat B, 76, Granville Road687 m away | 38 m² | 63 m² | +25 m² +66% | 2020 |
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| 254b, Long Lane317 m away | 50 m² | 74 m² | +24 m² +48% | 2026 |
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| 20, Woodberry Grove979 m away | 128 m² | 152 m² | +24 m² +19% | 2025 |
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| 8, Clifton Road287 m away | 119 m² | 143 m² | +24 m² +20% | 2024 |
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| 112, Long Lane183 m away | 82 m² | 106 m² | +24 m² +29% | 2023 |
|---|
| Flat 22, Witcomb Lodge, 64, Lankaster Gardens617 m away | 67 m² | 91 m² | +24 m² +36% | 2023 |
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| 10, Woodberry Way896 m away | 53 m² | 77 m² | +24 m² +45% | 2023 |
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| 16, Chamberlain Road571 m away | 81 m² | 105 m² | +24 m² +30% | 2022 |
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| 32, Old Farm Road655 m away | 97 m² | 121 m² | +24 m² +25% | 2015 |
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| 78, Long Lane341 m away | 73 m² | 97 m² | +24 m² +33% | 2014 |
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| 52, Lankaster Gardens617 m away | 100 m² | 124 m² | +24 m² +24% | 2013 |
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| Flat 3, The Fountains, Ballards Lane814 m away | 71 m² | 95 m² | +24 m² +34% | 2010 |
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| 34, Avondale Road177 m away | 121 m² | 144 m² | +23 m² +19% | 2025 |
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| 8a, Chislehurst Avenue614 m away | 53 m² | 76 m² | +23 m² +43% | 2023 |
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| 389, Long Lane890 m away | 52 m² | 75 m² | +23 m² +44% | 2023 |
|---|
| 38, Lankaster Gardens617 m away | 88 m² | 111 m² | +23 m² +26% | 2022 |
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| 374b, Long Lane748 m away | 57 m² | 80 m² | +23 m² +40% | 2022 |
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| 81a, Ballards Lane763 m away | 115 m² | 138 m² | +23 m² +20% | 2022 |
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| 10, Gruneisen Road819 m away | 58 m² | 81 m² | +23 m² +40% | 2021 |
|---|
| 52, Lichfield Grove891 m away | 94 m² | 117 m² | +23 m² +24% | 2021 |
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| Flat 7, 5, Blackdown Close576 m away | 28 m² | 51 m² | +23 m² +82% | 2020 |
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| 37b, Hervey Close702 m away | 53 m² | 76 m² | +23 m² +43% | 2014 |
|---|
| 1, Woodberry Way943 m away | 115 m² | 138 m² | +23 m² +20% | 2014 |
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| 452, Long Lane952 m away | 90 m² | 113 m² | +23 m² +26% | 2014 |
|---|
| Flat 13, Sherbrook House, 174, Ballards Lane741 m away | 87 m² | 110 m² | +23 m² +26% | 2013 |
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| 2b, Manor Park Road987 m away | 55 m² | 77 m² | +22 m² +40% | 2025 |
|---|
| 88, Bow Lane496 m away | 108 m² | 130 m² | +22 m² +20% | 2023 |
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| 51, Rosemary Avenue548 m away | 110 m² | 132 m² | +22 m² +20% | 2022 |
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| 12, Lewis Gardens636 m away | 83 m² | 105 m² | +22 m² +27% | 2019 |
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| 30a, Sedgemere Avenue945 m away | 121 m² | 143 m² | +22 m² +18% | 2018 |
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| 249, Squires Lane308 m away | 59 m² | 81 m² | +22 m² +37% | 2017 |
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| 40, Granville Road751 m away | 49 m² | 70 m² | +21 m² +43% | 2025 |
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| 17a, Station Road866 m away | 79 m² | 100 m² | +21 m² +27% | 2025 |
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| 48, Holdenhurst Avenue601 m away | 132 m² | 153 m² | +21 m² +16% | 2024 |
|---|
| 6, New Trinity Road822 m away | 97 m² | 118 m² | +21 m² +22% | 2020 |
|---|
| Flat 1, Hartley House, Ballards Lane875 m away | 46 m² | 67 m² | +21 m² +46% | 2019 |
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| 4, Grove Avenue863 m away | 58 m² | 79 m² | +21 m² +36% | 2018 |
|---|
| 244, Long Lane317 m away | 50 m² | 70 m² | +20 m² +40% | 2026 |
|---|
| 40, Manor Park Road889 m away | 68 m² | 88 m² | +20 m² +29% | 2025 |
|---|
| Flat 7, Redbourne House, Redbourne Avenue629 m away | 56 m² | 76 m² | +20 m² +36% | 2024 |
|---|
| 39, Claverley Grove588 m away | 128 m² | 148 m² | +20 m² +16% | 2023 |
|---|
| 22, Lankaster Gardens617 m away | 99 m² | 119 m² | +20 m² +20% | 2022 |
|---|
| 80a, Station Road779 m away | 70 m² | 90 m² | +20 m² +29% | 2021 |
|---|
| 261, Squires Lane308 m away | 58 m² | 78 m² | +20 m² +34% | 2019 |
|---|
| Flat 6a, Etchingham Court, Etchingham Park Road651 m away | 59 m² | 79 m² | +20 m² +34% | 2019 |
|---|
| 65, Long Lane166 m away | 69 m² | 89 m² | +20 m² +29% | 2015 |
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| 141b, Long Lane140 m away | 54 m² | 73 m² | +19 m² +35% | 2026 |
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| 18, Park View Road226 m away | 94 m² | 113 m² | +19 m² +20% | 2026 |
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| 211, Ballards Lane765 m away | 77 m² | 96 m² | +19 m² +25% | 2026 |
|---|
| Flat 20, Sherbrook House, 174, Ballards Lane741 m away | 65 m² | 84 m² | +19 m² +29% | 2023 |
|---|
| 2, Sedgemere Avenue945 m away | 76 m² | 95 m² | +19 m² +25% | 2021 |
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| 66, Glebelands Close577 m away | 62 m² | 81 m² | +19 m² +31% | 2020 |
|---|
| 52, Woodlands Avenue240 m away | 101 m² | 120 m² | +19 m² +19% | 2018 |
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| 22, Wentworth Close898 m away | 124 m² | 143 m² | +19 m² +15% | 2017 |
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| 35, Redbourne Avenue673 m away | 21 m² | 40 m² | +19 m² +90% | 2013 |
|---|
| Etchingham Court651 m away | 58 m² | 77 m² | +19 m² +33% | 2010 |
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| 7a, New Oak Road755 m away | 75 m² | 93 m² | +18 m² +24% | 2025 |
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