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 SE20 8NN
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 |
|---|---|---|---|---|
| 32, Crystal Palace Park Road686 m away | 139 m² | 300 m² | +161 m² +116% | 2019 |
| 130, Maple Road573 m away | 100 m² | 210 m² | +110 m² +110% | 2014 |
| 88, Venner Road872 m away | 340 m² | 448 m² | +108 m² +32% | 2017 |
| 68, Crystal Palace Park Road919 m away | 148 m² | 246 m² | +98 m² +66% | 2020 |
| 26, Avington Grove372 m away | 192 m² | 290 m² | +98 m² +51% | 2014 |
| 29, Wiverton Road842 m away | 110 m² | 197 m² | +87 m² +79% | 2024 |
| 29, Maple Road574 m away | 76 m² | 157 m² | +81 m² +107% | 2018 |
| 59, Anerley Park193 m away | 140 m² | 211 m² | +71 m² +51% | 2024 |
| 1, Pleydell Avenue866 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.
| 102 m² |
| 172 m² |
| +70 m² +69% |
| 2009 |
| 115, Croydon Road947 m away | 261 m² | 329 m² | +68 m² +26% | 2017 |
|---|
| 34, Crystal Palace Park Road686 m away | 216 m² | 283 m² | +67 m² +31% | 2022 |
|---|
| 19, Chesham Crescent984 m away | 105 m² | 172 m² | +67 m² +64% | 2014 |
|---|
| 39, Pleydell Avenue866 m away | 62 m² | 127 m² | +65 m² +105% | 2023 |
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| 45, Kingsdale Road970 m away | 64 m² | 128 m² | +64 m² +100% | 2020 |
|---|
| 1, Sydenham Avenue851 m away | 106 m² | 161 m² | +55 m² +52% | 2019 |
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| 34, Jasmine Grove473 m away | 150 m² | 204 m² | +54 m² +36% | 2024 |
|---|
| 6, Kenilworth Road975 m away | 104 m² | 158 m² | +54 m² +52% | 2020 |
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| 29, Kingswood Road480 m away | 93 m² | 146 m² | +53 m² +57% | 2026 |
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| 11, Pleydell Avenue866 m away | 43 m² | 96 m² | +53 m² +123% | 2023 |
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| 27, Phoenix Road600 m away | 126 m² | 178 m² | +52 m² +41% | 2024 |
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| 194, Venner Road735 m away | 127 m² | 179 m² | +52 m² +41% | 2024 |
|---|
| 5, Southey Street746 m away | 94 m² | 144 m² | +50 m² +53% | 2025 |
|---|
| 43b, Wiverton Road842 m away | 63 m² | 113 m² | +50 m² +79% | 2014 |
|---|
| 5, Kenilworth Road975 m away | 98 m² | 146 m² | +48 m² +49% | 2022 |
|---|
| 131, Parish Lane928 m away | 75 m² | 122 m² | +47 m² +63% | 2017 |
|---|
| 10a, Avington Grove372 m away | 58 m² | 104 m² | +46 m² +79% | 2025 |
|---|
| 14, Lawrie Park Crescent839 m away | 177 m² | 223 m² | +46 m² +26% | 2022 |
|---|
| 18, Cintra Park928 m away | 86 m² | 130 m² | +44 m² +51% | 2020 |
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| 37, Kingswood Road480 m away | 89 m² | 132 m² | +43 m² +48% | 2024 |
|---|
| 96a, Byne Road989 m away | 72 m² | 115 m² | +43 m² +60% | 2021 |
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| 39, Queen Adelaide Road667 m away | 31 m² | 74 m² | +43 m² +139% | 2010 |
|---|
| 33, Kenilworth Road975 m away | 91 m² | 133 m² | +42 m² +46% | 2020 |
|---|
| 18, Green Lane893 m away | 49 m² | 91 m² | +42 m² +86% | 2016 |
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| 95, Wiverton Road991 m away | 134 m² | 176 m² | +42 m² +31% | 2015 |
|---|
| 20, Hamlet Road779 m away | 164 m² | 205 m² | +41 m² +25% | 2017 |
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| 99, Wiverton Road991 m away | 90 m² | 131 m² | +41 m² +46% | 2017 |
|---|
| 11, Lennard Road883 m away | 72 m² | 113 m² | +41 m² +57% | 2014 |
|---|
| 3, Phoenix Road600 m away | 141 m² | 181 m² | +40 m² +28% | 2025 |
|---|
| 1, Lennard Road868 m away | 94 m² | 134 m² | +40 m² +43% | 2024 |
|---|
| Flat 4, 11, Thicket Road437 m away | 35 m² | 75 m² | +40 m² +114% | 2012 |
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| 71, Kingswood Road480 m away | 88 m² | 127 m² | +39 m² +44% | 2022 |
|---|
| Flat 61, Queen Adelaide Court, Queen Adelaide Road698 m away | 36 m² | 74 m² | +38 m² +106% | 2020 |
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| 181, High Street893 m away | 32 m² | 70 m² | +38 m² +119% | 2019 |
|---|
| 5, Border Road921 m away | 94 m² | 132 m² | +38 m² +40% | 2018 |
|---|
| Flat 2, 87, Anerley Road505 m away | 63 m² | 101 m² | +38 m² +60% | 2017 |
|---|
| 37, Kenilworth Road975 m away | 85 m² | 122 m² | +37 m² +44% | 2022 |
|---|
| Flat C, 25, Hamlet Road732 m away | 38 m² | 75 m² | +37 m² +97% | 2021 |
|---|
| Flat 19, Brooklyn, Anerley Road566 m away | 46 m² | 83 m² | +37 m² +80% | 2014 |
|---|
| 25, Kingswood Road480 m away | 86 m² | 122 m² | +36 m² +42% | 2025 |
|---|
| 10, Crampton Road446 m away | 95 m² | 131 m² | +36 m² +38% | 2024 |
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| 19, Wiverton Road842 m away | 129 m² | 165 m² | +36 m² +28% | 2010 |
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| 129, Croydon Road947 m away | 227 m² | 262 m² | +35 m² +15% | 2024 |
|---|
| 68, Oakfield Road267 m away | 88 m² | 123 m² | +35 m² +40% | 2014 |
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| Inchbare, Maple Road676 m away | 34 m² | 68 m² | +34 m² +100% | 2023 |
|---|
| 55, Wordsworth Road807 m away | 89 m² | 123 m² | +34 m² +38% | 2021 |
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| 13, Stodart Road696 m away | 131 m² | 165 m² | +34 m² +26% | 2017 |
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| Flat 2, 10, Thicket Road369 m away | 39 m² | 73 m² | +34 m² +87% | 2016 |
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| 17, Padua Road656 m away | 61 m² | 95 m² | +34 m² +56% | 2016 |
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| 16, Padua Road656 m away | 119 m² | 152 m² | +33 m² +28% | 2026 |
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| 27, Montrave Road512 m away | 135 m² | 168 m² | +33 m² +24% | 2024 |
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| 186, Maple Road605 m away | 53 m² | 86 m² | +33 m² +62% | 2020 |
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| 22, Hamlet Road779 m away | 153 m² | 186 m² | +33 m² +22% | 2017 |
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| 70, Anerley Park132 m away | 53 m² | 86 m² | +33 m² +62% | 2010 |
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| Flat 7, Park House, Anerley Park411 m away | 57 m² | 90 m² | +33 m² +58% | 2009 |
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| 114, Anerley Park193 m away | 125 m² | 157 m² | +32 m² +26% | 2026 |
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| 47, Pleydell Avenue866 m away | 135 m² | 167 m² | +32 m² +24% | 2026 |
|---|
| 58, Kingswood Road490 m away | 117 m² | 149 m² | +32 m² +27% | 2023 |
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| 28, Oak Grove Road952 m away | 80 m² | 112 m² | +32 m² +40% | 2021 |
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| 1, Wiverton Road842 m away | 129 m² | 160 m² | +31 m² +24% | 2025 |
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| 31, Torr Road986 m away | 86 m² | 117 m² | +31 m² +36% | 2023 |
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| Ground Floor, 44, Wiverton Road869 m away | 53 m² | 84 m² | +31 m² +58% | 2022 |
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| 50a, Croydon Road733 m away | 69 m² | 100 m² | +31 m² +45% | 2021 |
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| 40, Stodart Road696 m away | 103 m² | 134 m² | +31 m² +30% | 2019 |
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| Flat 4, 47, Newlands Park888 m away | 32 m² | 63 m² | +31 m² +97% | 2016 |
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| 49b, Anerley Park132 m away | 80 m² | 111 m² | +31 m² +39% | 2015 |
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| 30, Parish Lane814 m away | 42 m² | 73 m² | +31 m² +74% | 2010 |
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| 105, Seymour Villas737 m away | 62 m² | 92 m² | +30 m² +48% | 2026 |
|---|
| 2, Lennard Terrace818 m away | 99 m² | 129 m² | +30 m² +30% | 2020 |
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| 15, Green Lane893 m away | 111 m² | 141 m² | +30 m² +27% | 2015 |
|---|
| Flat 25, Brooklyn, Anerley Road566 m away | 40 m² | 70 m² | +30 m² +75% | 2013 |
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| Flat 32, Hanover Court, Anerley Road778 m away | 38 m² | 67 m² | +29 m² +76% | 2023 |
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| 22a, Avington Grove372 m away | 35 m² | 64 m² | +29 m² +83% | 2022 |
|---|
| Flat F, 9, Hamlet Road732 m away | 31 m² | 60 m² | +29 m² +94% | 2017 |
|---|
| 50c, Thicket Road195 m away | 67 m² | 95 m² | +28 m² +42% | 2022 |
|---|
| Flat 3, Aintree House, Park Court552 m away | 46 m² | 74 m² | +28 m² +61% | 2019 |
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| Flat 9, Coniston Court, Springfield Road656 m away | 45 m² | 73 m² | +28 m² +62% | 2018 |
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| 159b, Venner Road780 m away | 53 m² | 81 m² | +28 m² +53% | 2017 |
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| 28, Green Lane903 m away | 88 m² | 116 m² | +28 m² +32% | 2015 |
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| Flat 10, Queen Adelaide Court, Queen Adelaide Road740 m away | 45 m² | 72 m² | +27 m² +60% | 2025 |
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| 70, Wordsworth Road859 m away | 91 m² | 118 m² | +27 m² +30% | 2024 |
|---|
| 49b, Parish Lane853 m away | 41 m² | 68 m² | +27 m² +66% | 2022 |
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| 198b, Venner Road735 m away | 47 m² | 74 m² | +27 m² +57% | 2014 |
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| Flat 5, Parcell House, Newlands Park838 m away | 56 m² | 82 m² | +26 m² +46% | 2025 |
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| 37b, Waldegrave Road768 m away | 37 m² | 63 m² | +26 m² +70% | 2023 |
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| 23, Cottingham Road922 m away | 78 m² | 104 m² | +26 m² +33% | 2022 |
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| Flat 6, Strood House, Evelina Road681 m away | 19 m² | 45 m² | +26 m² +137% | 2020 |
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| 2c, Hawthorn Grove376 m away | 96 m² | 122 m² | +26 m² +27% | 2014 |
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| 22, Green Lane893 m away | 42 m² | 67 m² | +25 m² +60% | 2020 |
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| 2, Crampton Road446 m away | 86 m² | 111 m² | +25 m² +29% | 2019 |
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| 8, Green Lane893 m away | 83 m² | 108 m² | +25 m² +30% | 2009 |
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| 24, Trenholme Road110 m away | 75 m² | 99 m² | +24 m² +32% | 2026 |
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| 1, Seymour Terrace839 m away | 138 m² | 162 m² | +24 m² +17% | 2024 |
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| 20, Cintra Park928 m away | 88 m² | 112 m² | +24 m² +27% | 2024 |
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| 40, Kenilworth Road975 m away | 126 m² | 150 m² | +24 m² +19% | 2024 |
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| Flat 1, 68, Belvedere Road856 m away | 89 m² | 113 m² | +24 m² +27% | 2023 |
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| 38, Pleydell Avenue887 m away | 87 m² | 111 m² | +24 m² +28% | 2022 |
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| 27, Albert Road888 m away | 44 m² | 68 m² | +24 m² +55% | 2021 |
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| 1, Border Road921 m away | 136 m² | 160 m² | +24 m² +18% | 2021 |
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| Flat 8, Wicklow Court, 45, Lawrie Park Road955 m away | 45 m² | 69 m² | +24 m² +53% | 2018 |
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| Flat 5, 26, Chestnut Grove411 m away | 45 m² | 69 m² | +24 m² +53% | 2017 |
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| 20e, Anerley Hill948 m away | 63 m² | 86 m² | +23 m² +37% | 2026 |
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| 152, Maple Road573 m away | 52 m² | 75 m² | +23 m² +44% | 2025 |
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| 30, Seymour Villas717 m away | 74 m² | 97 m² | +23 m² +31% | 2024 |
|---|
| 222, Venner Road735 m away | 118 m² | 141 m² | +23 m² +19% | 2021 |
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| Flat 4, 9, St Johns Road525 m away | 37 m² | 60 m² | +23 m² +62% | 2018 |
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| Flat 10, Golden Mews, 15, Howard Road653 m away | 71 m² | 94 m² | +23 m² +32% | 2018 |
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| 58, Hawthorn Grove376 m away | 52 m² | 75 m² | +23 m² +44% | 2017 |
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| 65, William Booth Road615 m away | 40 m² | 63 m² | +23 m² +57% | 2014 |
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| 41, William Booth Road615 m away | 40 m² | 63 m² | +23 m² +57% | 2014 |
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| Flat 22, Brooklyn, Anerley Road566 m away | 66 m² | 89 m² | +23 m² +35% | 2012 |
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| 61, Venner Road876 m away | 55 m² | 78 m² | +23 m² +42% | 2010 |
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| 11, Trenholme Road110 m away | 87 m² | 109 m² | +22 m² +25% | 2023 |
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| Flat 7, 56, Thicket Road195 m away | 41 m² | 63 m² | +22 m² +54% | 2020 |
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| 24a, Jasmine Grove473 m away | 31 m² | 53 m² | +22 m² +71% | 2020 |
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| 7a, Howard Road653 m away | 85 m² | 107 m² | +22 m² +26% | 2020 |
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| 19, High Street349 m away | 78 m² | 100 m² | +22 m² +28% | 2019 |
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| Flat 2, 11, Thicket Road437 m away | 35 m² | 57 m² | +22 m² +63% | 2019 |
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| Flat C, 9, Hamlet Road732 m away | 42 m² | 64 m² | +22 m² +52% | 2017 |
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| Flat 6b, Ellesmere Court, Seymour Villas924 m away | 70 m² | 92 m² | +22 m² +31% | 2017 |
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| Flat 26, Roberts Court, Maple Road594 m away | 39 m² | 61 m² | +22 m² +56% | 2014 |
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| 14, Parkside Close507 m away | 60 m² | 81 m² | +21 m² +35% | 2025 |
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| 8, Queen Adelaide Road667 m away | 85 m² | 106 m² | +21 m² +25% | 2024 |
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| 30, Pleydell Avenue887 m away | 94 m² | 115 m² | +21 m² +22% | 2023 |
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| 35, Cottingham Road922 m away | 78 m² | 99 m² | +21 m² +27% | 2022 |
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| 198a, Venner Road735 m away | 66 m² | 87 m² | +21 m² +32% | 2020 |
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| Flat 4, 19, Thicket Road437 m away | 30 m² | 51 m² | +21 m² +70% | 2019 |
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| Flat 5, 3, Anerley Hill845 m away | 69 m² | 90 m² | +21 m² +30% | 2019 |
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| 10, Graveney Grove357 m away | 82 m² | 103 m² | +21 m² +26% | 2014 |
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| Flat 2, Brooklyn, Anerley Road566 m away | 49 m² | 70 m² | +21 m² +43% | 2014 |
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| Flat 49, Deverill Court, Avenue Road916 m away | 59 m² | 79 m² | +20 m² +34% | 2026 |
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| Flat 10, Isis House, 5, Worcester Close738 m away | 64 m² | 84 m² | +20 m² +31% | 2025 |
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| 59, Edward Road928 m away | 65 m² | 85 m² | +20 m² +31% | 2025 |
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| Flat 20, Isis House, 5, Worcester Close738 m away | 64 m² | 84 m² | +20 m² +31% | 2023 |
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| 58, Byne Road989 m away | 128 m² | 148 m² | +20 m² +16% | 2023 |
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| 14, Green Lane893 m away | 118 m² | 138 m² | +20 m² +17% | 2022 |
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| 47a, Anerley Park132 m away | 101 m² | 121 m² | +20 m² +20% | 2021 |
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| 16a, Avington Grove372 m away | 84 m² | 104 m² | +20 m² +24% | 2021 |
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| 46, Crystal Palace Park Road686 m away | 37 m² | 57 m² | +20 m² +54% | 2021 |
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| Flat 1, Foxley Manor, 24, Anerley Park336 m away | 27 m² | 47 m² | +20 m² +74% | 2015 |
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| 102a, Croydon Road783 m away | 76 m² | 96 m² | +20 m² +26% | 2014 |
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| 18, Phoenix Road600 m away | 114 m² | 133 m² | +19 m² +17% | 2025 |
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| 192a, Anerley Road646 m away | 40 m² | 59 m² | +19 m² +48% | 2025 |
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| 3, Newlands Park739 m away | 46 m² | 65 m² | +19 m² +41% | 2025 |
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| 21a, Waldegrave Road768 m away | 110 m² | 129 m² | +19 m² +17% | 2025 |
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| 5, Trenholme Terrace144 m away | 46 m² | 65 m² | +19 m² +41% | 2024 |
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| Flat 6, Mayne Court, 48, Crystal Palace Park Road726 m away | 51 m² | 70 m² | +19 m² +37% | 2024 |
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| Flat 12, Sycamore House, 53a, Lennard Road995 m away | 40 m² | 59 m² | +19 m² +48% | 2020 |
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| 20a, Castledine Road256 m away | 57 m² | 76 m² | +19 m² +33% | 2018 |
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| 23, Ridsdale Road412 m away | 45 m² | 64 m² | +19 m² +42% | 2015 |
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| 5, Cranleigh Close851 m away | 38 m² | 57 m² | +19 m² +50% | 2014 |
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| 83d, Anerley Road505 m away | 94 m² | 113 m² | +19 m² +20% | 2012 |
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| 9, Owen Walk522 m away | 56 m² | 74 m² | +18 m² +32% | 2024 |
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| Flat 16, Readman Court, 42, Jasmine Grove545 m away | 37 m² | 55 m² | +18 m² +49% | 2022 |
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| Flat 11, 175, Anerley Road602 m away | 42 m² | 60 m² | +18 m² +43% | 2020 |
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| Flat 2, Fountain Court, Lawrie Park Road520 m away | 46 m² | 64 m² | +18 m² +39% | 2019 |
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| 46, Lucas Road713 m away | 67 m² | 85 m² | +18 m² +27% | 2019 |
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| 57, Wordsworth Road807 m away | 92 m² | 110 m² | +18 m² +20% | 2016 |
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| 12, Sheldon Close549 m away | 43 m² | 61 m² | +18 m² +42% | 2015 |
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| 6, Parkside Close507 m away | 69 m² | 87 m² | +18 m² +26% | 2014 |
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| Flat 12, Ellesmere Court, Seymour Villas924 m away | 69 m² | 87 m² | +18 m² +26% | 2012 |
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| 185a, Anerley Road679 m away | 70 m² | 88 m² | +18 m² +26% | 2011 |
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| 9, Trenholme Road110 m away | 87 m² | 104 m² | +17 m² +20% | 2022 |
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| 10b, Raleigh Road780 m away | 47 m² | 64 m² | +17 m² +36% | 2021 |
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| 30, Avenue Road994 m away | 107 m² | 124 m² | +17 m² +16% | 2021 |
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| Flat 7, Fountain Court, Lawrie Park Road520 m away | 50 m² | 67 m² | +17 m² +34% | 2020 |
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| 12, Maberley Road970 m away | 57 m² | 74 m² | +17 m² +30% | 2018 |
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| 71, Maple Road528 m away | 76 m² | 93 m² | +17 m² +22% | 2014 |
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| Flat 43, Brooklyn, Anerley Road566 m away | 53 m² | 70 m² | +17 m² +32% | 2013 |
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| Flat 1, 110, Oakfield Road218 m away | 55 m² | 71 m² | +16 m² +29% | 2026 |
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| Flat D, 35, Anerley Park330 m away | 54 m² | 70 m² | +16 m² +30% | 2025 |
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| Flat 6, Golden Mews, 15, Howard Road653 m away | 54 m² | 70 m² | +16 m² +30% | 2025 |
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| 21a, Padua Road656 m away | 38 m² | 54 m² | +16 m² +42% | 2021 |
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| Flat 2, 32, Anerley Park323 m away | 58 m² | 74 m² | +16 m² +28% | 2020 |
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| 52, Station Road600 m away | 99 m² | 115 m² | +16 m² +16% | 2020 |
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| Flat 4, 141, Croydon Road947 m away | 41 m² | 57 m² | +16 m² +39% | 2020 |
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| 6a, Avington Grove372 m away | 86 m² | 102 m² | +16 m² +19% | 2016 |
|---|
| 13, Oak Grove Road947 m away | 85 m² | 101 m² | +16 m² +19% | 2014 |
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| 4, Stoneleigh, Mosslea Road518 m away | 38 m² | 54 m² | +16 m² +42% | 2013 |
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| 20c, Castledine Road256 m away | 35 m² | 50 m² | +15 m² +43% | 2025 |
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| 48, Anerley Park323 m away | 95 m² | 110 m² | +15 m² +16% | 2025 |
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| Flat 12, Howard House, Howard Road596 m away | 46 m² | 61 m² | +15 m² +33% | 2025 |
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| 122, Parish Lane928 m away | 68 m² | 83 m² | +15 m² +22% | 2025 |
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| 22, Tarragon Grove977 m away | 69 m² | 84 m² | +15 m² +22% | 2023 |
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| 190b, Anerley Road646 m away | 40 m² | 55 m² | +15 m² +38% | 2022 |
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| Flat C, 13, Crystal Palace Park Road383 m away | 77 m² | 92 m² | +15 m² +19% | 2021 |
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| Flat 9, New Church Court, Waldegrave Road754 m away | 38 m² | 53 m² | +15 m² +39% | 2021 |
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| Flat 2, 95, Anerley Road477 m away | 32 m² | 47 m² | +15 m² +47% | 2020 |
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| Flat 1, 120, Oakfield Road218 m away | 54 m² | 69 m² | +15 m² +28% | 2018 |
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| 13, Castledine Road256 m away | 46 m² | 61 m² | +15 m² +33% | 2018 |
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| 160, Croydon Road925 m away | 32 m² | 47 m² | +15 m² +47% | 2018 |
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