Finding extended homes…
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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 8HH
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 Lane509 m away | 105 m² | 211 m² | +106 m² +101% | 2019 |
| 76, Cambourne Avenue567 m away | 71 m² | 162 m² | +91 m² +128% | 2025 |
| 189, St Marys Road824 m away | 87 m² | 176 m² | +89 m² +102% | 2026 |
| 16, Derby Road928 m away | 67 m² | 145 m² | +78 m² +116% | 2024 |
| 22, Sedcote Road939 m away | 86 m² | 155 m² | +69 m² +80% | 2020 |
| 32a, South Street808 m away | 63 m² | 128 m² | +65 m² +103% | 2025 |
| 50, Church Road526 m away | 83 m² | 146 m² | +63 m² +76% | 2025 |
| 60, Northfield Road813 m away | 103 m² | 166 m² | +63 m² +61% | 2025 |
| 24, Coniston Gardens999 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.
| 63 m² |
| 125 m² |
| +62 m² +98% |
| 2026 |
| 195, St Marys Road824 m away | 91 m² | 153 m² | +62 m² +68% | 2025 |
|---|
| 1, Northfield Road828 m away | 92 m² | 153 m² | +61 m² +66% | 2023 |
|---|
| 129, Cuckoo Hall Lane345 m away | 86 m² | 146 m² | +60 m² +70% | 2025 |
|---|
| 228, Nightingale Road709 m away | 73 m² | 133 m² | +60 m² +82% | 2025 |
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| 37, Woodlands Road928 m away | 80 m² | 139 m² | +59 m² +74% | 2023 |
|---|
| 102, Nightingale Road461 m away | 121 m² | 177 m² | +56 m² +46% | 2021 |
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| 16, Southfield Road804 m away | 87 m² | 142 m² | +55 m² +63% | 2026 |
|---|
| 54, Dartford Avenue363 m away | 88 m² | 143 m² | +55 m² +63% | 2019 |
|---|
| 169, South Street550 m away | 93 m² | 147 m² | +54 m² +58% | 2019 |
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| 20, Warren Close505 m away | 77 m² | 128 m² | +51 m² +66% | 2026 |
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| 20, Orchard Road654 m away | 95 m² | 145 m² | +50 m² +53% | 2026 |
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| 16, South Street808 m away | 44 m² | 93 m² | +49 m² +111% | 2012 |
|---|
| 50, Shirley Grove385 m away | 75 m² | 122 m² | +47 m² +63% | 2026 |
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| 49, South Street757 m away | 118 m² | 165 m² | +47 m² +40% | 2019 |
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| 71, Alma Road804 m away | 40 m² | 86 m² | +46 m² +115% | 2025 |
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| 118, St Josephs Road848 m away | 85 m² | 131 m² | +46 m² +54% | 2025 |
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| 157, Cuckoo Hall Lane345 m away | 71 m² | 117 m² | +46 m² +65% | 2023 |
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| 15, St Michaels Avenue531 m away | 60 m² | 104 m² | +44 m² +73% | 2026 |
|---|
| 7, Falcon Road547 m away | 76 m² | 120 m² | +44 m² +58% | 2024 |
|---|
| 27, Tennyson Close706 m away | 36 m² | 79 m² | +43 m² +119% | 2012 |
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| 52, Clarence Road853 m away | 95 m² | 137 m² | +42 m² +44% | 2019 |
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| 85, Charlton Road491 m away | 80 m² | 120 m² | +40 m² +50% | 2026 |
|---|
| 1, Brierley Avenue933 m away | 92 m² | 130 m² | +38 m² +41% | 2025 |
|---|
| 9, Clarence Road865 m away | 74 m² | 112 m² | +38 m² +51% | 2023 |
|---|
| 42, Dartford Avenue363 m away | 87 m² | 124 m² | +37 m² +43% | 2022 |
|---|
| 20, Coniston Gardens999 m away | 68 m² | 105 m² | +37 m² +54% | 2017 |
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| 3, Northfield Road828 m away | 102 m² | 137 m² | +35 m² +34% | 2022 |
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| 126, Sandhurst Road111 m away | 94 m² | 129 m² | +35 m² +37% | 2019 |
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| 51, Southfield Road808 m away | 84 m² | 119 m² | +35 m² +42% | 2015 |
|---|
| 95, Scotland Green Road904 m away | 78 m² | 112 m² | +34 m² +44% | 2024 |
|---|
| 121, Charlton Road491 m away | 80 m² | 114 m² | +34 m² +43% | 2016 |
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| 8, South Street808 m away | 95 m² | 128 m² | +33 m² +35% | 2019 |
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| 34, Elmcroft Avenue835 m away | 99 m² | 131 m² | +32 m² +32% | 2024 |
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| 5, Concord Road981 m away | 35 m² | 67 m² | +32 m² +91% | 2024 |
|---|
| 10, Alma Road654 m away | 98 m² | 130 m² | +32 m² +33% | 2013 |
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| 32, Wellstead Avenue440 m away | 73 m² | 104 m² | +31 m² +42% | 2025 |
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| 115a, High Street787 m away | 82 m² | 113 m² | +31 m² +38% | 2025 |
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| 4, Northfield Road813 m away | 111 m² | 142 m² | +31 m² +28% | 2025 |
|---|
| 14, Chelsfield Green150 m away | 70 m² | 101 m² | +31 m² +44% | 2021 |
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| 292, Nightingale Road927 m away | 65 m² | 96 m² | +31 m² +48% | 2016 |
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| 24, Church Road526 m away | 91 m² | 121 m² | +30 m² +33% | 2026 |
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| 131, St Marys Road824 m away | 67 m² | 97 m² | +30 m² +45% | 2023 |
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| 7, St Alphege Road680 m away | 89 m² | 119 m² | +30 m² +34% | 2021 |
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| 81, Scotland Green Road904 m away | 96 m² | 125 m² | +29 m² +30% | 2025 |
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| 282, Nightingale Road927 m away | 86 m² | 115 m² | +29 m² +34% | 2024 |
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| 28, Turin Road648 m away | 114 m² | 143 m² | +29 m² +25% | 2023 |
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| 62, Tramway Avenue811 m away | 63 m² | 92 m² | +29 m² +46% | 2019 |
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| 7, Shirley Grove375 m away | 59 m² | 88 m² | +29 m² +49% | 2018 |
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| 21, Chelsfield Avenue126 m away | 88 m² | 117 m² | +29 m² +33% | 2015 |
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| 55, Clydesdale993 m away | 39 m² | 68 m² | +29 m² +74% | 2015 |
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| 133, St Marys Road824 m away | 71 m² | 99 m² | +28 m² +39% | 2025 |
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| 463, Lincoln Road884 m away | 72 m² | 100 m² | +28 m² +39% | 2013 |
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| 24, Southfield Road804 m away | 57 m² | 85 m² | +28 m² +49% | 2011 |
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| 194, Galliard Road689 m away | 98 m² | 125 m² | +27 m² +28% | 2020 |
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| 61, Clarence Road865 m away | 110 m² | 136 m² | +26 m² +24% | 2026 |
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| 393, Hertford Road871 m away | 95 m² | 121 m² | +26 m² +27% | 2025 |
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| 94, Sandhurst Road283 m away | 88 m² | 114 m² | +26 m² +30% | 2024 |
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| 266a, St Marys Road821 m away | 63 m² | 89 m² | +26 m² +41% | 2024 |
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| 64, Cambourne Avenue567 m away | 64 m² | 90 m² | +26 m² +41% | 2023 |
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| 1, Concord Road981 m away | 35 m² | 61 m² | +26 m² +74% | 2022 |
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| 45, Penfold Road670 m away | 82 m² | 108 m² | +26 m² +32% | 2019 |
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| 19, Sutherland Road496 m away | 74 m² | 100 m² | +26 m² +35% | 2010 |
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| 48, Curzon Avenue879 m away | 58 m² | 83 m² | +25 m² +43% | 2021 |
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| 44, Chaffinch Close829 m away | 44 m² | 69 m² | +25 m² +57% | 2012 |
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| 520, Hertford Road654 m away | 47 m² | 72 m² | +25 m² +53% | 2010 |
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| 23, Freemantle Avenue863 m away | 65 m² | 89 m² | +24 m² +37% | 2012 |
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| 1, Martin Close952 m away | 20 m² | 44 m² | +24 m² +120% | 2012 |
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| 5, Cambourne Avenue536 m away | 67 m² | 90 m² | +23 m² +34% | 2022 |
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| 86, Southfield Road804 m away | 85 m² | 108 m² | +23 m² +27% | 2022 |
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| 53, Southfield Road808 m away | 103 m² | 126 m² | +23 m² +22% | 2019 |
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| 5, Scarborough Road519 m away | 72 m² | 95 m² | +23 m² +32% | 2014 |
|---|
| 83, High Street742 m away | 105 m² | 128 m² | +23 m² +22% | 2013 |
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| 86, Clydesdale993 m away | 66 m² | 88 m² | +22 m² +33% | 2024 |
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| 43, King Edwards Road997 m away | 91 m² | 113 m² | +22 m² +24% | 2024 |
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| 189, Sandhurst Road89 m away | 84 m² | 106 m² | +22 m² +26% | 2023 |
|---|
| 39, Devonshire Road994 m away | 80 m² | 102 m² | +22 m² +28% | 2022 |
|---|
| 51, Beatrice Road560 m away | 113 m² | 135 m² | +22 m² +19% | 2019 |
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| Flat 14, 84, South Street669 m away | 36 m² | 58 m² | +22 m² +61% | 2016 |
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| 14, Shirley Grove385 m away | 66 m² | 88 m² | +22 m² +33% | 2011 |
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| 140, Nightingale Road552 m away | 71 m² | 93 m² | +22 m² +31% | 2010 |
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| 103, Charlton Road491 m away | 68 m² | 89 m² | +21 m² +31% | 2025 |
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| 102, Charlton Road457 m away | 103 m² | 124 m² | +21 m² +20% | 2022 |
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| 28, Church Road526 m away | 85 m² | 106 m² | +21 m² +25% | 2021 |
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| 91, Scotland Green Road904 m away | 73 m² | 94 m² | +21 m² +29% | 2021 |
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| 300, Nightingale Road927 m away | 78 m² | 99 m² | +21 m² +27% | 2021 |
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| 1b, Sedcote Road939 m away | 39 m² | 60 m² | +21 m² +54% | 2015 |
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| 70, Clarence Road853 m away | 116 m² | 137 m² | +21 m² +18% | 2012 |
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| 296, Nightingale Road927 m away | 78 m² | 98 m² | +20 m² +26% | 2025 |
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| 2, Concord Road981 m away | 35 m² | 55 m² | +20 m² +57% | 2024 |
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| 10, Allens Road720 m away | 77 m² | 97 m² | +20 m² +26% | 2020 |
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| 34, Oaklands Avenue825 m away | 76 m² | 96 m² | +20 m² +26% | 2020 |
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| 22, Coniston Gardens999 m away | 115 m² | 135 m² | +20 m² +17% | 2019 |
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| 445, Lincoln Road884 m away | 71 m² | 91 m² | +20 m² +28% | 2018 |
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| 99, Charlton Road491 m away | 67 m² | 87 m² | +20 m² +30% | 2011 |
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| 34, Northfield Road813 m away | 75 m² | 95 m² | +20 m² +27% | 2010 |
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| 2, Warren Close505 m away | 88 m² | 107 m² | +19 m² +22% | 2026 |
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| 111, Nightingale Road514 m away | 76 m² | 95 m² | +19 m² +25% | 2025 |
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| 16, Bunting Close918 m away | 42 m² | 61 m² | +19 m² +45% | 2021 |
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| 29, Rydal Way514 m away | 40 m² | 59 m² | +19 m² +48% | 2020 |
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| 106, Church Road407 m away | 97 m² | 116 m² | +19 m² +20% | 2019 |
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| 116, Church Road407 m away | 38 m² | 57 m² | +19 m² +50% | 2017 |
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| 314, Nightingale Road927 m away | 74 m² | 92 m² | +18 m² +24% | 2026 |
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| 165, Charlton Road324 m away | 92 m² | 110 m² | +18 m² +20% | 2025 |
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| 87, Southfield Road808 m away | 89 m² | 107 m² | +18 m² +20% | 2023 |
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| 13, Brierley Avenue933 m away | 59 m² | 77 m² | +18 m² +31% | 2019 |
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| 40, Devonshire Road954 m away | 64 m² | 82 m² | +18 m² +28% | 2018 |
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| 32, Cambourne Avenue567 m away | 64 m² | 82 m² | +18 m² +28% | 2016 |
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| 182, Nightingale Road552 m away | 74 m² | 91 m² | +17 m² +23% | 2026 |
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| 24, Elmcroft Avenue835 m away | 104 m² | 121 m² | +17 m² +16% | 2026 |
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| 259, Galliard Road846 m away | 72 m² | 89 m² | +17 m² +24% | 2025 |
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| 90, St Josephs Road848 m away | 72 m² | 89 m² | +17 m² +24% | 2025 |
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| 164, Charlton Road36 m away | 87 m² | 104 m² | +17 m² +20% | 2024 |
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| 5, Clarence Road865 m away | 82 m² | 99 m² | +17 m² +21% | 2022 |
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| 26, Mottingham Road234 m away | 70 m² | 87 m² | +17 m² +24% | 2021 |
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| 59, Charlton Road663 m away | 73 m² | 90 m² | +17 m² +23% | 2021 |
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| 40, Acworth Close682 m away | 44 m² | 61 m² | +17 m² +39% | 2021 |
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| 41, Bunting Close918 m away | 43 m² | 60 m² | +17 m² +40% | 2019 |
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| 14, Tudor Road869 m away | 85 m² | 102 m² | +17 m² +20% | 2016 |
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| 63, Shirley Grove375 m away | 68 m² | 85 m² | +17 m² +25% | 2012 |
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| 49, Falcon Road547 m away | 81 m² | 97 m² | +16 m² +20% | 2023 |
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| 23, Sedcote Road939 m away | 102 m² | 118 m² | +16 m² +16% | 2023 |
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| 97, Woodlands Road928 m away | 98 m² | 114 m² | +16 m² +16% | 2022 |
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| 59, Allens Road642 m away | 83 m² | 99 m² | +16 m² +19% | 2021 |
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| 365, Hertford Road871 m away | 41 m² | 57 m² | +16 m² +39% | 2020 |
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| 82, Mottingham Road209 m away | 77 m² | 93 m² | +16 m² +21% | 2016 |
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| 49, Charlton Road663 m away | 67 m² | 83 m² | +16 m² +24% | 2013 |
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| 2b, Southfield Road804 m away | 61 m² | 76 m² | +15 m² +25% | 2025 |
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| 56, Beatrice Road582 m away | 94 m² | 109 m² | +15 m² +16% | 2023 |
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| 28, Sedcote Road939 m away | 43 m² | 58 m² | +15 m² +35% | 2023 |
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| 217, Charlton Road107 m away | 91 m² | 106 m² | +15 m² +16% | 2022 |
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| 93, Dartford Avenue288 m away | 95 m² | 110 m² | +15 m² +16% | 2014 |
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| 302, Nightingale Road927 m away | 25 m² | 40 m² | +15 m² +60% | 2009 |
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