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 N9 8DX
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 |
|---|---|---|---|---|
| 46, Cuckoo Hall Lane328 m away | 105 m² | 211 m² | +106 m² +101% | 2019 |
| 76, Cambourne Avenue396 m away | 71 m² | 162 m² | +91 m² +128% | 2025 |
| 189, St Marys Road627 m away | 87 m² | 176 m² | +89 m² +102% | 2026 |
| 16, Derby Road969 m away | 67 m² | 145 m² | +78 m² +116% | 2024 |
| 79, King Edwards Road953 m away | 78 m² | 147 m² | +69 m² +88% | 2025 |
| 1, Lowden Road935 m away | 105 m² | 173 m² | +68 m² +65% | 2020 |
| 32a, South Street880 m away | 63 m² | 128 m² | +65 m² +103% | 2025 |
| 50, Church Road611 m away | 83 m² | 146 m² | +63 m² +76% | 2025 |
| 60, Northfield Road790 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.
| 103 m² |
| 166 m² |
| +63 m² +61% |
| 2025 |
| 24, Coniston Gardens802 m away | 63 m² | 125 m² | +62 m² +98% | 2026 |
|---|
| 195, St Marys Road627 m away | 91 m² | 153 m² | +62 m² +68% | 2025 |
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| 1, Northfield Road811 m away | 92 m² | 153 m² | +61 m² +66% | 2023 |
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| 129, Cuckoo Hall Lane140 m away | 86 m² | 146 m² | +60 m² +70% | 2025 |
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| 228, Nightingale Road526 m away | 73 m² | 133 m² | +60 m² +82% | 2025 |
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| 37, Woodlands Road726 m away | 80 m² | 139 m² | +59 m² +74% | 2023 |
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| 102, Nightingale Road294 m away | 121 m² | 177 m² | +56 m² +46% | 2021 |
|---|
| 16, Southfield Road767 m away | 87 m² | 142 m² | +55 m² +63% | 2026 |
|---|
| 54, Dartford Avenue282 m away | 88 m² | 143 m² | +55 m² +63% | 2019 |
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| 49, Lowden Road935 m away | 79 m² | 134 m² | +55 m² +70% | 2014 |
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| 169, South Street739 m away | 93 m² | 147 m² | +54 m² +58% | 2019 |
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| 165, Bounces Road1000 m away | 81 m² | 134 m² | +53 m² +65% | 2022 |
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| 20, Warren Close342 m away | 77 m² | 128 m² | +51 m² +66% | 2026 |
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| 20, Orchard Road703 m away | 95 m² | 145 m² | +50 m² +53% | 2026 |
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| 53, Grosvenor Road980 m away | 74 m² | 123 m² | +49 m² +66% | 2025 |
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| 300, Hertford Road969 m away | 94 m² | 143 m² | +49 m² +52% | 2023 |
|---|
| 16, South Street880 m away | 44 m² | 93 m² | +49 m² +111% | 2012 |
|---|
| 50, Shirley Grove199 m away | 75 m² | 122 m² | +47 m² +63% | 2026 |
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| 49, South Street833 m away | 118 m² | 165 m² | +47 m² +40% | 2019 |
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| 118, St Josephs Road643 m away | 85 m² | 131 m² | +46 m² +54% | 2025 |
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| 71, Alma Road995 m away | 40 m² | 86 m² | +46 m² +115% | 2025 |
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| 157, Cuckoo Hall Lane140 m away | 71 m² | 117 m² | +46 m² +65% | 2023 |
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| 15, St Michaels Avenue332 m away | 60 m² | 104 m² | +44 m² +73% | 2026 |
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| 7, Falcon Road681 m away | 76 m² | 120 m² | +44 m² +58% | 2024 |
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| 57, Grosvenor Road980 m away | 77 m² | 121 m² | +44 m² +57% | 2022 |
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| 47, Bridlington Road964 m away | 77 m² | 121 m² | +44 m² +57% | 2015 |
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| 27, Tennyson Close847 m away | 36 m² | 79 m² | +43 m² +119% | 2012 |
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| 52, Clarence Road856 m away | 95 m² | 137 m² | +42 m² +44% | 2019 |
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| 85, Charlton Road364 m away | 80 m² | 120 m² | +40 m² +50% | 2026 |
|---|
| 1, Brierley Avenue750 m away | 92 m² | 130 m² | +38 m² +41% | 2025 |
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| 9, Clarence Road873 m away | 74 m² | 112 m² | +38 m² +51% | 2023 |
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| 42, Dartford Avenue282 m away | 87 m² | 124 m² | +37 m² +43% | 2022 |
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| 20, Coniston Gardens802 m away | 68 m² | 105 m² | +37 m² +54% | 2017 |
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| 48, Forest Road869 m away | 76 m² | 112 m² | +36 m² +47% | 2014 |
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| 66, St Peters Road974 m away | 42 m² | 77 m² | +35 m² +83% | 2026 |
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| 189, Bounces Road1000 m away | 88 m² | 123 m² | +35 m² +40% | 2023 |
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| 3, Northfield Road811 m away | 102 m² | 137 m² | +35 m² +34% | 2022 |
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| 126, Sandhurst Road219 m away | 94 m² | 129 m² | +35 m² +37% | 2019 |
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| 51, Southfield Road762 m away | 84 m² | 119 m² | +35 m² +42% | 2015 |
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| 121, Charlton Road364 m away | 80 m² | 114 m² | +34 m² +43% | 2016 |
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| 8, South Street880 m away | 95 m² | 128 m² | +33 m² +35% | 2019 |
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| 34, Elmcroft Avenue761 m away | 99 m² | 131 m² | +32 m² +32% | 2024 |
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| 70, Lowden Road911 m away | 69 m² | 101 m² | +32 m² +46% | 2024 |
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| 5, Concord Road979 m away | 35 m² | 67 m² | +32 m² +91% | 2024 |
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| 97, Grosvenor Road980 m away | 43 m² | 75 m² | +32 m² +74% | 2019 |
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| 10, Alma Road845 m away | 98 m² | 130 m² | +32 m² +33% | 2013 |
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| 32, Wellstead Avenue274 m away | 73 m² | 104 m² | +31 m² +42% | 2025 |
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| 4, Northfield Road790 m away | 111 m² | 142 m² | +31 m² +28% | 2025 |
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| 115a, High Street832 m away | 82 m² | 113 m² | +31 m² +38% | 2025 |
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| 14, Chelsfield Green84 m away | 70 m² | 101 m² | +31 m² +44% | 2021 |
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| 292, Nightingale Road749 m away | 65 m² | 96 m² | +31 m² +48% | 2016 |
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| 24, Church Road611 m away | 91 m² | 121 m² | +30 m² +33% | 2026 |
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| 131, St Marys Road627 m away | 67 m² | 97 m² | +30 m² +45% | 2023 |
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| 7, St Alphege Road502 m away | 89 m² | 119 m² | +30 m² +34% | 2021 |
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| 282, Nightingale Road749 m away | 86 m² | 115 m² | +29 m² +34% | 2024 |
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| 28, Turin Road444 m away | 114 m² | 143 m² | +29 m² +25% | 2023 |
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| 62, Tramway Avenue623 m away | 63 m² | 92 m² | +29 m² +46% | 2019 |
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| 7, Shirley Grove180 m away | 59 m² | 88 m² | +29 m² +49% | 2018 |
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| 21, Chelsfield Avenue81 m away | 88 m² | 117 m² | +29 m² +33% | 2015 |
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| 133, St Marys Road627 m away | 71 m² | 99 m² | +28 m² +39% | 2025 |
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| 35, Doncaster Road888 m away | 87 m² | 115 m² | +28 m² +32% | 2025 |
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| 463, Lincoln Road901 m away | 72 m² | 100 m² | +28 m² +39% | 2013 |
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| 23, Grosvenor Road980 m away | 118 m² | 146 m² | +28 m² +24% | 2013 |
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| 24, Southfield Road767 m away | 57 m² | 85 m² | +28 m² +49% | 2011 |
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| 90, Forest Road869 m away | 78 m² | 105 m² | +27 m² +35% | 2023 |
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| 194, Galliard Road607 m away | 98 m² | 125 m² | +27 m² +28% | 2020 |
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| 100, Forest Road869 m away | 73 m² | 100 m² | +27 m² +37% | 2014 |
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| 57, Lowden Road935 m away | 44 m² | 71 m² | +27 m² +61% | 2014 |
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| 61, Clarence Road873 m away | 110 m² | 136 m² | +26 m² +24% | 2026 |
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| 393, Hertford Road702 m away | 95 m² | 121 m² | +26 m² +27% | 2025 |
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| 94, Sandhurst Road278 m away | 88 m² | 114 m² | +26 m² +30% | 2024 |
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| 266a, St Marys Road636 m away | 63 m² | 89 m² | +26 m² +41% | 2024 |
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| 64, Cambourne Avenue396 m away | 64 m² | 90 m² | +26 m² +41% | 2023 |
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| 1, Concord Road979 m away | 35 m² | 61 m² | +26 m² +74% | 2022 |
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| 45, Penfold Road501 m away | 82 m² | 108 m² | +26 m² +32% | 2019 |
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| 59, Lowden Road935 m away | 45 m² | 71 m² | +26 m² +58% | 2014 |
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| 19, Sutherland Road617 m away | 74 m² | 100 m² | +26 m² +35% | 2010 |
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| 44, Chaffinch Close675 m away | 44 m² | 69 m² | +25 m² +57% | 2012 |
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| 520, Hertford Road526 m away | 47 m² | 72 m² | +25 m² +53% | 2010 |
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| 128, Oaklands Avenue918 m away | 56 m² | 80 m² | +24 m² +43% | 2021 |
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| 1, Martin Close789 m away | 20 m² | 44 m² | +24 m² +120% | 2012 |
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| 5, Cambourne Avenue362 m away | 67 m² | 90 m² | +23 m² +34% | 2022 |
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| 86, Southfield Road767 m away | 85 m² | 108 m² | +23 m² +27% | 2022 |
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| 288, Hertford Road969 m away | 72 m² | 95 m² | +23 m² +32% | 2020 |
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| 53, Southfield Road762 m away | 103 m² | 126 m² | +23 m² +22% | 2019 |
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| 5, Scarborough Road360 m away | 72 m² | 95 m² | +23 m² +32% | 2014 |
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| 83, High Street776 m away | 105 m² | 128 m² | +23 m² +22% | 2013 |
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| 43, King Edwards Road823 m away | 91 m² | 113 m² | +22 m² +24% | 2024 |
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| 189, Sandhurst Road287 m away | 84 m² | 106 m² | +22 m² +26% | 2023 |
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| 39, Devonshire Road807 m away | 80 m² | 102 m² | +22 m² +28% | 2022 |
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| 51, Beatrice Road427 m away | 113 m² | 135 m² | +22 m² +19% | 2019 |
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| 94, Oaklands Avenue918 m away | 70 m² | 92 m² | +22 m² +31% | 2019 |
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| Flat 14, 84, South Street800 m away | 36 m² | 58 m² | +22 m² +61% | 2016 |
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| 14, Shirley Grove199 m away | 66 m² | 88 m² | +22 m² +33% | 2011 |
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| 140, Nightingale Road350 m away | 71 m² | 93 m² | +22 m² +31% | 2010 |
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| 103, Charlton Road364 m away | 68 m² | 89 m² | +21 m² +31% | 2025 |
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| 102, Charlton Road323 m away | 103 m² | 124 m² | +21 m² +20% | 2022 |
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| 28, Church Road611 m away | 85 m² | 106 m² | +21 m² +25% | 2021 |
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| 300, Nightingale Road749 m away | 78 m² | 99 m² | +21 m² +27% | 2021 |
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| 70, Clarence Road856 m away | 116 m² | 137 m² | +21 m² +18% | 2012 |
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| 296, Nightingale Road749 m away | 78 m² | 98 m² | +20 m² +26% | 2025 |
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| 2, Concord Road979 m away | 35 m² | 55 m² | +20 m² +57% | 2024 |
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| 16, Forest Road869 m away | 71 m² | 91 m² | +20 m² +28% | 2021 |
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| 34, Oaklands Avenue719 m away | 76 m² | 96 m² | +20 m² +26% | 2020 |
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| 10, Allens Road784 m away | 77 m² | 97 m² | +20 m² +26% | 2020 |
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| 22, Coniston Gardens802 m away | 115 m² | 135 m² | +20 m² +17% | 2019 |
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| 445, Lincoln Road901 m away | 71 m² | 91 m² | +20 m² +28% | 2018 |
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| 63, Lowden Road935 m away | 55 m² | 75 m² | +20 m² +36% | 2014 |
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| 99, Charlton Road364 m away | 67 m² | 87 m² | +20 m² +30% | 2011 |
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| 34, Northfield Road790 m away | 75 m² | 95 m² | +20 m² +27% | 2010 |
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| 2, Warren Close342 m away | 88 m² | 107 m² | +19 m² +22% | 2026 |
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| 111, Nightingale Road312 m away | 76 m² | 95 m² | +19 m² +25% | 2025 |
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| 16, Bunting Close763 m away | 42 m² | 61 m² | +19 m² +45% | 2021 |
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| 29, Rydal Way556 m away | 40 m² | 59 m² | +19 m² +48% | 2020 |
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| 106, Church Road432 m away | 97 m² | 116 m² | +19 m² +20% | 2019 |
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| 116, Church Road432 m away | 38 m² | 57 m² | +19 m² +50% | 2017 |
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| 314, Nightingale Road749 m away | 74 m² | 92 m² | +18 m² +24% | 2026 |
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| 165, Charlton Road239 m away | 92 m² | 110 m² | +18 m² +20% | 2025 |
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| 87, Southfield Road762 m away | 89 m² | 107 m² | +18 m² +20% | 2023 |
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| 13, Brierley Avenue750 m away | 59 m² | 77 m² | +18 m² +31% | 2019 |
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| 40, Devonshire Road763 m away | 64 m² | 82 m² | +18 m² +28% | 2018 |
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| 32, Cambourne Avenue396 m away | 64 m² | 82 m² | +18 m² +28% | 2016 |
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| 182, Nightingale Road350 m away | 74 m² | 91 m² | +17 m² +23% | 2026 |
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| 24, Elmcroft Avenue761 m away | 104 m² | 121 m² | +17 m² +16% | 2026 |
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| 90, St Josephs Road643 m away | 72 m² | 89 m² | +17 m² +24% | 2025 |
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| 259, Galliard Road763 m away | 72 m² | 89 m² | +17 m² +24% | 2025 |
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| 164, Charlton Road169 m away | 87 m² | 104 m² | +17 m² +20% | 2024 |
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| 5, Clarence Road873 m away | 82 m² | 99 m² | +17 m² +21% | 2022 |
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| 26, Mottingham Road78 m away | 70 m² | 87 m² | +17 m² +24% | 2021 |
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| 40, Acworth Close482 m away | 44 m² | 61 m² | +17 m² +39% | 2021 |
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| 59, Charlton Road519 m away | 73 m² | 90 m² | +17 m² +23% | 2021 |
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| 41, Bunting Close763 m away | 43 m² | 60 m² | +17 m² +40% | 2019 |
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| 14, Tudor Road671 m away | 85 m² | 102 m² | +17 m² +20% | 2016 |
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| 66, Grosvenor Road984 m away | 73 m² | 90 m² | +17 m² +23% | 2014 |
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| 63, Shirley Grove180 m away | 68 m² | 85 m² | +17 m² +25% | 2012 |
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| 187, Bounces Road1000 m away | 79 m² | 95 m² | +16 m² +20% | 2024 |
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| 49, Falcon Road681 m away | 81 m² | 97 m² | +16 m² +20% | 2023 |
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| 97, Woodlands Road726 m away | 98 m² | 114 m² | +16 m² +16% | 2022 |
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| 35, Bridlington Road851 m away | 79 m² | 95 m² | +16 m² +20% | 2022 |
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| 59, Allens Road720 m away | 83 m² | 99 m² | +16 m² +19% | 2021 |
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| 365, Hertford Road702 m away | 41 m² | 57 m² | +16 m² +39% | 2020 |
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| 59, Hadleigh Road891 m away | 81 m² | 97 m² | +16 m² +20% | 2018 |
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| 82, Mottingham Road193 m away | 77 m² | 93 m² | +16 m² +21% | 2016 |
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| 49, Charlton Road519 m away | 67 m² | 83 m² | +16 m² +24% | 2013 |
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| 2b, Southfield Road767 m away | 61 m² | 76 m² | +15 m² +25% | 2025 |
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| 127, Elmcroft Avenue947 m away | 56 m² | 71 m² | +15 m² +27% | 2025 |
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| 56, Beatrice Road455 m away | 94 m² | 109 m² | +15 m² +16% | 2023 |
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| 217, Charlton Road182 m away | 91 m² | 106 m² | +15 m² +16% | 2022 |
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| 93, Dartford Avenue232 m away | 95 m² | 110 m² | +15 m² +16% | 2014 |
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| 169, Bounces Road1000 m away | 66 m² | 81 m² | +15 m² +23% | 2012 |
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| 302, Nightingale Road749 m away | 25 m² | 40 m² | +15 m² +60% | 2009 |
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