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 8LF
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 |
|---|---|---|---|---|
| 130, Maple Road490 m away | 100 m² | 210 m² | +110 m² +110% | 2014 |
| 26, Avington Grove440 m away | 192 m² | 290 m² | +98 m² +51% | 2014 |
| 41, Elmers End Road803 m away | 116 m² | 201 m² | +85 m² +73% | 2025 |
| 29, Maple Road219 m away | 76 m² | 157 m² | +81 m² +107% | 2018 |
| 191, Ravenscroft Road852 m away | 63 m² | 135 m² | +72 m² +114% | 2021 |
| 98, Avenue Road938 m away | 72 m² | 143 m² | +71 m² +99% | 2025 |
| 59, Anerley Park518 m away | 140 m² | 211 m² | +71 m² +51% | 2024 |
| 26, Ravenscroft Road936 m away | 89 m² | 157 m² | +68 m² +76% | 2025 |
| 115, Croydon Road575 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.
| 261 m² |
| 329 m² |
| +68 m² +26% |
| 2017 |
| 19, Chesham Crescent641 m away | 105 m² | 172 m² | +67 m² +64% | 2014 |
|---|
| 45, Kingsdale Road832 m away | 64 m² | 128 m² | +64 m² +100% | 2020 |
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| 80, Ravenscroft Road936 m away | 102 m² | 164 m² | +62 m² +61% | 2020 |
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| 34, Jasmine Grove127 m away | 150 m² | 204 m² | +54 m² +36% | 2024 |
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| 6, Kenilworth Road746 m away | 104 m² | 158 m² | +54 m² +52% | 2020 |
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| 29, Kingswood Road711 m away | 93 m² | 146 m² | +53 m² +57% | 2026 |
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| 27, Phoenix Road771 m away | 126 m² | 178 m² | +52 m² +41% | 2024 |
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| 194, Venner Road942 m away | 127 m² | 179 m² | +52 m² +41% | 2024 |
|---|
| 5, Southey Street736 m away | 94 m² | 144 m² | +50 m² +53% | 2025 |
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| 167, Ravenscroft Road852 m away | 97 m² | 145 m² | +48 m² +49% | 2026 |
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| 5, Kenilworth Road746 m away | 98 m² | 146 m² | +48 m² +49% | 2022 |
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| 34, Pelham Road880 m away | 104 m² | 152 m² | +48 m² +46% | 2021 |
|---|
| 62, Tremaine Road797 m away | 138 m² | 185 m² | +47 m² +34% | 2019 |
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| 131, Parish Lane916 m away | 75 m² | 122 m² | +47 m² +63% | 2017 |
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| 10a, Avington Grove440 m away | 58 m² | 104 m² | +46 m² +79% | 2025 |
|---|
| 37, Kingswood Road711 m away | 89 m² | 132 m² | +43 m² +48% | 2024 |
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| 29, Ash Grove751 m away | 85 m² | 128 m² | +43 m² +51% | 2022 |
|---|
| 39, Queen Adelaide Road734 m away | 31 m² | 74 m² | +43 m² +139% | 2010 |
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| 116, Mackenzie Road993 m away | 104 m² | 146 m² | +42 m² +40% | 2022 |
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| 33, Kenilworth Road746 m away | 91 m² | 133 m² | +42 m² +46% | 2020 |
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| 18, Green Lane816 m away | 49 m² | 91 m² | +42 m² +86% | 2016 |
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| 48, Chesham Road735 m away | 121 m² | 162 m² | +41 m² +34% | 2025 |
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| 235, Birkbeck Road939 m away | 64 m² | 105 m² | +41 m² +64% | 2025 |
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| 30, Felmingham Road969 m away | 72 m² | 113 m² | +41 m² +57% | 2023 |
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| 20, Hamlet Road917 m away | 164 m² | 205 m² | +41 m² +25% | 2017 |
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| 11, Lennard Road993 m away | 72 m² | 113 m² | +41 m² +57% | 2014 |
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| 3, Phoenix Road771 m away | 141 m² | 181 m² | +40 m² +28% | 2025 |
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| 36, Pelham Road880 m away | 108 m² | 148 m² | +40 m² +37% | 2025 |
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| 53, Stembridge Road896 m away | 106 m² | 146 m² | +40 m² +38% | 2020 |
|---|
| Flat 4, 11, Thicket Road620 m away | 35 m² | 75 m² | +40 m² +114% | 2012 |
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| 85, Ravenscroft Road976 m away | 91 m² | 130 m² | +39 m² +43% | 2024 |
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| 71, Kingswood Road711 m away | 88 m² | 127 m² | +39 m² +44% | 2022 |
|---|
| Flat 61, Queen Adelaide Court, Queen Adelaide Road793 m away | 36 m² | 74 m² | +38 m² +106% | 2020 |
|---|
| 181, High Street747 m away | 32 m² | 70 m² | +38 m² +119% | 2019 |
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| Flat 2, 87, Anerley Road598 m away | 63 m² | 101 m² | +38 m² +60% | 2017 |
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| 130, Mackenzie Road993 m away | 95 m² | 132 m² | +37 m² +39% | 2026 |
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| 37, Kenilworth Road746 m away | 85 m² | 122 m² | +37 m² +44% | 2022 |
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| Flat C, 25, Hamlet Road866 m away | 38 m² | 75 m² | +37 m² +97% | 2021 |
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| Flat 19, Brooklyn, Anerley Road623 m away | 46 m² | 83 m² | +37 m² +80% | 2014 |
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| 25, Kingswood Road711 m away | 86 m² | 122 m² | +36 m² +42% | 2025 |
|---|
| 10, Crampton Road703 m away | 95 m² | 131 m² | +36 m² +38% | 2024 |
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| 129, Croydon Road575 m away | 227 m² | 262 m² | +35 m² +15% | 2024 |
|---|
| 120, Elmers End Road930 m away | 106 m² | 141 m² | +35 m² +33% | 2022 |
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| 73, Ravenscroft Road976 m away | 101 m² | 136 m² | +35 m² +35% | 2022 |
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| 68, Oakfield Road110 m away | 88 m² | 123 m² | +35 m² +40% | 2014 |
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| 16, Elmers End Road636 m away | 124 m² | 158 m² | +34 m² +27% | 2026 |
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| 132, Birkbeck Road900 m away | 117 m² | 151 m² | +34 m² +29% | 2024 |
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| Inchbare, Maple Road306 m away | 34 m² | 68 m² | +34 m² +100% | 2023 |
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| 55, Wordsworth Road789 m away | 89 m² | 123 m² | +34 m² +38% | 2021 |
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| 172, Birkbeck Road900 m away | 84 m² | 118 m² | +34 m² +40% | 2019 |
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| 13, Stodart Road344 m away | 131 m² | 165 m² | +34 m² +26% | 2017 |
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| 17, Padua Road355 m away | 61 m² | 95 m² | +34 m² +56% | 2016 |
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| Flat 2, 10, Thicket Road557 m away | 39 m² | 73 m² | +34 m² +87% | 2016 |
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| 16, Padua Road355 m away | 119 m² | 152 m² | +33 m² +28% | 2026 |
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| 27, Montrave Road654 m away | 135 m² | 168 m² | +33 m² +24% | 2024 |
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| 186, Maple Road581 m away | 53 m² | 86 m² | +33 m² +62% | 2020 |
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| 22, Hamlet Road917 m away | 153 m² | 186 m² | +33 m² +22% | 2017 |
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| 70, Anerley Park409 m away | 53 m² | 86 m² | +33 m² +62% | 2010 |
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| Flat 7, Park House, Anerley Park466 m away | 57 m² | 90 m² | +33 m² +58% | 2009 |
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| 114, Anerley Park518 m away | 125 m² | 157 m² | +32 m² +26% | 2026 |
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| 28, Bourdon Road790 m away | 99 m² | 131 m² | +32 m² +32% | 2024 |
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| 58, Kingswood Road703 m away | 117 m² | 149 m² | +32 m² +27% | 2023 |
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| 29, Pelham Road888 m away | 102 m² | 134 m² | +32 m² +31% | 2022 |
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| 28, Oak Grove Road584 m away | 80 m² | 112 m² | +32 m² +40% | 2021 |
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| 5, Piquet Road958 m away | 118 m² | 150 m² | +32 m² +27% | 2018 |
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| 30, Stembridge Road929 m away | 85 m² | 117 m² | +32 m² +38% | 2013 |
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| 31, Torr Road884 m away | 86 m² | 117 m² | +31 m² +36% | 2023 |
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| 50a, Croydon Road488 m away | 69 m² | 100 m² | +31 m² +45% | 2021 |
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| 40, Stodart Road344 m away | 103 m² | 134 m² | +31 m² +30% | 2019 |
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| 72a, Samos Road834 m away | 79 m² | 110 m² | +31 m² +39% | 2019 |
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| 1, Wadhurst Close763 m away | 56 m² | 87 m² | +31 m² +55% | 2016 |
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| 49b, Anerley Park409 m away | 80 m² | 111 m² | +31 m² +39% | 2015 |
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| 30, Parish Lane917 m away | 42 m² | 73 m² | +31 m² +74% | 2010 |
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| 105, Seymour Villas470 m away | 62 m² | 92 m² | +30 m² +48% | 2026 |
|---|
| 2, Lennard Terrace958 m away | 99 m² | 129 m² | +30 m² +30% | 2020 |
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| 15, Green Lane816 m away | 111 m² | 141 m² | +30 m² +27% | 2015 |
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| Flat 25, Brooklyn, Anerley Road623 m away | 40 m² | 70 m² | +30 m² +75% | 2013 |
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| Flat 32, Hanover Court, Anerley Road998 m away | 38 m² | 67 m² | +29 m² +76% | 2023 |
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| 22a, Avington Grove440 m away | 35 m² | 64 m² | +29 m² +83% | 2022 |
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| 170, Birkbeck Road900 m away | 86 m² | 115 m² | +29 m² +34% | 2020 |
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| 49, Clevedon Road815 m away | 107 m² | 136 m² | +29 m² +27% | 2018 |
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| Flat F, 9, Hamlet Road866 m away | 31 m² | 60 m² | +29 m² +94% | 2017 |
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| 50, Stembridge Road929 m away | 79 m² | 107 m² | +28 m² +35% | 2026 |
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| 109, Elmers End Road955 m away | 51 m² | 79 m² | +28 m² +55% | 2023 |
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| 50c, Thicket Road571 m away | 67 m² | 95 m² | +28 m² +42% | 2022 |
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| Flat 3, Aintree House, Park Court893 m away | 46 m² | 74 m² | +28 m² +61% | 2019 |
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| Flat 9, Coniston Court, Springfield Road991 m away | 45 m² | 73 m² | +28 m² +62% | 2018 |
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| 159b, Venner Road979 m away | 53 m² | 81 m² | +28 m² +53% | 2017 |
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| 28, Green Lane810 m away | 88 m² | 116 m² | +28 m² +32% | 2015 |
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| 123, Ravenscroft Road852 m away | 85 m² | 112 m² | +27 m² +32% | 2026 |
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| Flat 10, Queen Adelaide Court, Queen Adelaide Road813 m away | 45 m² | 72 m² | +27 m² +60% | 2025 |
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| 70, Wordsworth Road828 m away | 91 m² | 118 m² | +27 m² +30% | 2024 |
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| 4a, Tremaine Road797 m away | 53 m² | 80 m² | +27 m² +51% | 2023 |
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| 49b, Parish Lane953 m away | 41 m² | 68 m² | +27 m² +66% | 2022 |
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| 105, Avenue Road939 m away | 71 m² | 98 m² | +27 m² +38% | 2020 |
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| 76, Ravenscroft Road936 m away | 114 m² | 141 m² | +27 m² +24% | 2017 |
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| 94, Ravenscroft Road936 m away | 113 m² | 140 m² | +27 m² +24% | 2017 |
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| 198b, Venner Road942 m away | 47 m² | 74 m² | +27 m² +57% | 2014 |
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| 37b, Waldegrave Road930 m away | 37 m² | 63 m² | +26 m² +70% | 2023 |
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| 23, Cottingham Road809 m away | 78 m² | 104 m² | +26 m² +33% | 2022 |
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| Flat 6, Strood House, Evelina Road560 m away | 19 m² | 45 m² | +26 m² +137% | 2020 |
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| 166, Birkbeck Road900 m away | 87 m² | 113 m² | +26 m² +30% | 2020 |
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| 2c, Hawthorn Grove0 m away | 96 m² | 122 m² | +26 m² +27% | 2014 |
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| 193, Birkbeck Road928 m away | 94 m² | 119 m² | +25 m² +27% | 2026 |
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| 22, Green Lane816 m away | 42 m² | 67 m² | +25 m² +60% | 2020 |
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| 2, Crampton Road703 m away | 86 m² | 111 m² | +25 m² +29% | 2019 |
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| 29, Chesham Road735 m away | 55 m² | 80 m² | +25 m² +45% | 2019 |
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| 8, Green Lane816 m away | 83 m² | 108 m² | +25 m² +30% | 2009 |
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| 24, Trenholme Road371 m away | 75 m² | 99 m² | +24 m² +32% | 2026 |
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| 1, Seymour Terrace565 m away | 138 m² | 162 m² | +24 m² +17% | 2024 |
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| 40, Kenilworth Road746 m away | 126 m² | 150 m² | +24 m² +19% | 2024 |
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| Flat 1, 68, Belvedere Road927 m away | 89 m² | 113 m² | +24 m² +27% | 2023 |
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| Flat 4, 180, Birkbeck Road900 m away | 49 m² | 73 m² | +24 m² +49% | 2022 |
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| 27, Albert Road945 m away | 44 m² | 68 m² | +24 m² +55% | 2021 |
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| 114, Marlow Road980 m away | 99 m² | 123 m² | +24 m² +24% | 2020 |
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| 18, Piquet Road959 m away | 106 m² | 130 m² | +24 m² +23% | 2018 |
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| Flat 5, 26, Chestnut Grove155 m away | 45 m² | 69 m² | +24 m² +53% | 2017 |
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| 152, Maple Road490 m away | 52 m² | 75 m² | +23 m² +44% | 2025 |
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| 30, Seymour Villas466 m away | 74 m² | 97 m² | +23 m² +31% | 2024 |
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| 27, Ash Grove751 m away | 101 m² | 124 m² | +23 m² +23% | 2022 |
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| 76, Birkbeck Road978 m away | 92 m² | 115 m² | +23 m² +25% | 2022 |
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| 222, Venner Road942 m away | 118 m² | 141 m² | +23 m² +19% | 2021 |
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| Flat 10, Golden Mews, 15, Howard Road409 m away | 71 m² | 94 m² | +23 m² +32% | 2018 |
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| Flat 4, 9, St Johns Road634 m away | 37 m² | 60 m² | +23 m² +62% | 2018 |
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| 58, Hawthorn Grove0 m away | 52 m² | 75 m² | +23 m² +44% | 2017 |
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| 65, William Booth Road549 m away | 40 m² | 63 m² | +23 m² +57% | 2014 |
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| 41, William Booth Road549 m away | 40 m² | 63 m² | +23 m² +57% | 2014 |
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| Flat 22, Brooklyn, Anerley Road623 m away | 66 m² | 89 m² | +23 m² +35% | 2012 |
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| 11, Trenholme Road371 m away | 87 m² | 109 m² | +22 m² +25% | 2023 |
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| 20a, Ash Grove751 m away | 48 m² | 70 m² | +22 m² +46% | 2023 |
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| 24a, Jasmine Grove127 m away | 31 m² | 53 m² | +22 m² +71% | 2020 |
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| 7a, Howard Road409 m away | 85 m² | 107 m² | +22 m² +26% | 2020 |
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| Flat 7, 56, Thicket Road571 m away | 41 m² | 63 m² | +22 m² +54% | 2020 |
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| 19, High Street598 m away | 78 m² | 100 m² | +22 m² +28% | 2019 |
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| Flat 2, 11, Thicket Road620 m away | 35 m² | 57 m² | +22 m² +63% | 2019 |
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| Flat 6b, Ellesmere Court, Seymour Villas640 m away | 70 m² | 92 m² | +22 m² +31% | 2017 |
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| Flat C, 9, Hamlet Road866 m away | 42 m² | 64 m² | +22 m² +52% | 2017 |
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| Flat 26, Roberts Court, Maple Road268 m away | 39 m² | 61 m² | +22 m² +56% | 2014 |
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| Flat 15, Penceat Court, 17, Bourdon Road790 m away | 29 m² | 51 m² | +22 m² +76% | 2013 |
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| Flat 46, Wheathill House, Croydon Road942 m away | 66 m² | 88 m² | +22 m² +33% | 2012 |
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| 14, Parkside Close539 m away | 60 m² | 81 m² | +21 m² +35% | 2025 |
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| 8, Queen Adelaide Road734 m away | 85 m² | 106 m² | +21 m² +25% | 2024 |
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| 35, Cottingham Road809 m away | 78 m² | 99 m² | +21 m² +27% | 2022 |
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| 152, Ravenscroft Road816 m away | 66 m² | 87 m² | +21 m² +32% | 2022 |
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| 26, Felmingham Road969 m away | 75 m² | 96 m² | +21 m² +28% | 2021 |
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| 45b, Royston Road871 m away | 67 m² | 88 m² | +21 m² +31% | 2020 |
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| 198a, Venner Road942 m away | 66 m² | 87 m² | +21 m² +32% | 2020 |
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| Flat 4, 19, Thicket Road620 m away | 30 m² | 51 m² | +21 m² +70% | 2019 |
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| 133, Elmers End Road955 m away | 81 m² | 102 m² | +21 m² +26% | 2019 |
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| 30, Piquet Road959 m away | 83 m² | 104 m² | +21 m² +25% | 2018 |
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| 10, Graveney Grove215 m away | 82 m² | 103 m² | +21 m² +26% | 2014 |
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| Flat 2, Brooklyn, Anerley Road623 m away | 49 m² | 70 m² | +21 m² +43% | 2014 |
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| Flat 49, Deverill Court, Avenue Road617 m away | 59 m² | 79 m² | +20 m² +34% | 2026 |
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| Flat 10, Isis House, 5, Worcester Close742 m away | 64 m² | 84 m² | +20 m² +31% | 2025 |
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| 59, Edward Road964 m away | 65 m² | 85 m² | +20 m² +31% | 2025 |
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| Flat 20, Isis House, 5, Worcester Close742 m away | 64 m² | 84 m² | +20 m² +31% | 2023 |
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| 14, Green Lane816 m away | 118 m² | 138 m² | +20 m² +17% | 2022 |
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| 243, Ravenscroft Road859 m away | 63 m² | 83 m² | +20 m² +32% | 2022 |
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| 47a, Anerley Park409 m away | 101 m² | 121 m² | +20 m² +20% | 2021 |
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| 16a, Avington Grove440 m away | 84 m² | 104 m² | +20 m² +24% | 2021 |
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| 220b, Birkbeck Road902 m away | 21 m² | 41 m² | +20 m² +95% | 2020 |
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| Flat 1, Foxley Manor, 24, Anerley Park421 m away | 27 m² | 47 m² | +20 m² +74% | 2015 |
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| 102a, Croydon Road425 m away | 76 m² | 96 m² | +20 m² +26% | 2014 |
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| 192a, Anerley Road359 m away | 40 m² | 59 m² | +19 m² +48% | 2025 |
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| 18, Phoenix Road771 m away | 114 m² | 133 m² | +19 m² +17% | 2025 |
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| 147, Ravenscroft Road852 m away | 83 m² | 102 m² | +19 m² +23% | 2025 |
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| 3, Newlands Park915 m away | 46 m² | 65 m² | +19 m² +41% | 2025 |
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| 21a, Waldegrave Road930 m away | 110 m² | 129 m² | +19 m² +17% | 2025 |
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| 5, Trenholme Terrace303 m away | 46 m² | 65 m² | +19 m² +41% | 2024 |
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| 168, Birkbeck Road900 m away | 97 m² | 116 m² | +19 m² +20% | 2019 |
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| 20a, Castledine Road340 m away | 57 m² | 76 m² | +19 m² +33% | 2018 |
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| 23, Ridsdale Road362 m away | 45 m² | 64 m² | +19 m² +42% | 2015 |
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| 5, Cranleigh Close562 m away | 38 m² | 57 m² | +19 m² +50% | 2014 |
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| 83d, Anerley Road598 m away | 94 m² | 113 m² | +19 m² +20% | 2012 |
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| 9, Owen Walk508 m away | 56 m² | 74 m² | +18 m² +32% | 2024 |
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| 26a, Felmingham Road969 m away | 47 m² | 65 m² | +18 m² +38% | 2023 |
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| Flat 16, Readman Court, 42, Jasmine Grove170 m away | 37 m² | 55 m² | +18 m² +49% | 2022 |
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| Flat 11, 175, Anerley Road314 m away | 42 m² | 60 m² | +18 m² +43% | 2020 |
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| 101, Tovil Close814 m away | 82 m² | 100 m² | +18 m² +22% | 2019 |
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| 46, Lucas Road818 m away | 67 m² | 85 m² | +18 m² +27% | 2019 |
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| Flat 2, Fountain Court, Lawrie Park Road842 m away | 46 m² | 64 m² | +18 m² +39% | 2019 |
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| 57, Wordsworth Road789 m away | 92 m² | 110 m² | +18 m² +20% | 2016 |
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| 12, Sheldon Close193 m away | 43 m² | 61 m² | +18 m² +42% | 2015 |
|---|
| 55, Ravenscroft Road976 m away | 104 m² | 122 m² | +18 m² +17% | 2015 |
|---|
| 6, Parkside Close539 m away | 69 m² | 87 m² | +18 m² +26% | 2014 |
|---|
| Flat 12, Ellesmere Court, Seymour Villas640 m away | 69 m² | 87 m² | +18 m² +26% | 2012 |
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| 185a, Anerley Road323 m away | 70 m² | 88 m² | +18 m² +26% | 2011 |
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| 9, Trenholme Road371 m away | 87 m² | 104 m² | +17 m² +20% | 2022 |
|---|
| 30, Avenue Road693 m away | 107 m² | 124 m² | +17 m² +16% | 2021 |
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| 10b, Raleigh Road720 m away | 47 m² | 64 m² | +17 m² +36% | 2021 |
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| Flat 5, Toli Court, 71, Avenue Road839 m away | 78 m² | 95 m² | +17 m² +22% | 2021 |
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