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 8TQ
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 Road830 m away | 100 m² | 210 m² | +110 m² +110% | 2014 |
| 26, Avington Grove799 m away | 192 m² | 290 m² | +98 m² +51% | 2014 |
| 41, Elmers End Road728 m away | 116 m² | 201 m² | +85 m² +73% | 2025 |
| 29, Maple Road418 m away | 76 m² | 157 m² | +81 m² +107% | 2018 |
| 33, Sheringham Road857 m away | 82 m² | 160 m² | +78 m² +95% | 2019 |
| 191, Ravenscroft Road909 m away | 63 m² | 135 m² | +72 m² +114% | 2021 |
| 59, Anerley Park825 m away | 140 m² | 211 m² | +71 m² +51% | 2024 |
| 115, Croydon Road414 m away | 261 m² | 329 m² | +68 m² +26% | 2017 |
| 19, Chesham Crescent720 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.
| 105 m² |
| 172 m² |
| +67 m² +64% |
| 2014 |
| 22, Pittville Gardens881 m away | 123 m² | 189 m² | +66 m² +54% | 2024 |
|---|
| 15, Warwick Road916 m away | 114 m² | 179 m² | +65 m² +57% | 2021 |
|---|
| 34, Jasmine Grove236 m away | 150 m² | 204 m² | +54 m² +36% | 2024 |
|---|
| 6, Kenilworth Road978 m away | 104 m² | 158 m² | +54 m² +52% | 2020 |
|---|
| 167, Ravenscroft Road909 m away | 97 m² | 145 m² | +48 m² +49% | 2026 |
|---|
| 120, Sylvan Road905 m away | 73 m² | 121 m² | +48 m² +66% | 2023 |
|---|
| 5, Kenilworth Road978 m away | 98 m² | 146 m² | +48 m² +49% | 2022 |
|---|
| 34, Pelham Road876 m away | 104 m² | 152 m² | +48 m² +46% | 2021 |
|---|
| 62, Tremaine Road573 m away | 138 m² | 185 m² | +47 m² +34% | 2019 |
|---|
| 10a, Avington Grove799 m away | 58 m² | 104 m² | +46 m² +79% | 2025 |
|---|
| 29, Wheathill Road775 m away | 152 m² | 197 m² | +45 m² +30% | 2016 |
|---|
| 29, Ash Grove707 m away | 85 m² | 128 m² | +43 m² +51% | 2022 |
|---|
| 33, Kenilworth Road978 m away | 91 m² | 133 m² | +42 m² +46% | 2020 |
|---|
| 48, Chesham Road822 m away | 121 m² | 162 m² | +41 m² +34% | 2025 |
|---|
| 235, Birkbeck Road892 m away | 64 m² | 105 m² | +41 m² +64% | 2025 |
|---|
| 30, Felmingham Road828 m away | 72 m² | 113 m² | +41 m² +57% | 2023 |
|---|
| 3, Warwick Road916 m away | 101 m² | 142 m² | +41 m² +41% | 2022 |
|---|
| 20, Hamlet Road838 m away | 164 m² | 205 m² | +41 m² +25% | 2017 |
|---|
| 36, Pelham Road876 m away | 108 m² | 148 m² | +40 m² +37% | 2025 |
|---|
| 116, Sylvan Road905 m away | 34 m² | 74 m² | +40 m² +118% | 2025 |
|---|
| 53, Stembridge Road645 m away | 106 m² | 146 m² | +40 m² +38% | 2020 |
|---|
| 30, Avington Grove799 m away | 86 m² | 126 m² | +40 m² +47% | 2014 |
|---|
| Flat 4, 11, Thicket Road653 m away | 35 m² | 75 m² | +40 m² +114% | 2012 |
|---|
| Ground Floor Shop, 125, Anerley Road260 m away | 42 m² | 82 m² | +40 m² +95% | 2010 |
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| Flat 2, 87, Anerley Road557 m away | 63 m² | 101 m² | +38 m² +60% | 2017 |
|---|
| 15, Camille Close940 m away | 49 m² | 86 m² | +37 m² +76% | 2024 |
|---|
| 37, Kenilworth Road978 m away | 85 m² | 122 m² | +37 m² +44% | 2022 |
|---|
| Flat C, 25, Hamlet Road792 m away | 38 m² | 75 m² | +37 m² +97% | 2021 |
|---|
| Flat 19, Brooklyn, Anerley Road538 m away | 46 m² | 83 m² | +37 m² +80% | 2014 |
|---|
| 129, Croydon Road414 m away | 227 m² | 262 m² | +35 m² +15% | 2024 |
|---|
| 120, Elmers End Road837 m away | 106 m² | 141 m² | +35 m² +33% | 2022 |
|---|
| 4, Cambridge Road841 m away | 181 m² | 216 m² | +35 m² +19% | 2020 |
|---|
| 68, Oakfield Road419 m away | 88 m² | 123 m² | +35 m² +40% | 2014 |
|---|
| 16, Elmers End Road551 m away | 124 m² | 158 m² | +34 m² +27% | 2026 |
|---|
| 132, Birkbeck Road953 m away | 117 m² | 151 m² | +34 m² +29% | 2024 |
|---|
| Inchbare, Maple Road246 m away | 34 m² | 68 m² | +34 m² +100% | 2023 |
|---|
| 21, Warwick Road916 m away | 107 m² | 141 m² | +34 m² +32% | 2023 |
|---|
| 172, Birkbeck Road953 m away | 84 m² | 118 m² | +34 m² +40% | 2019 |
|---|
| 13, Stodart Road482 m away | 131 m² | 165 m² | +34 m² +26% | 2017 |
|---|
| 17, Padua Road583 m away | 61 m² | 95 m² | +34 m² +56% | 2016 |
|---|
| Flat 2, 10, Thicket Road618 m away | 39 m² | 73 m² | +34 m² +87% | 2016 |
|---|
| 70, Anerley Park607 m away | 52 m² | 86 m² | +34 m² +65% | 2010 |
|---|
| 16, Padua Road583 m away | 119 m² | 152 m² | +33 m² +28% | 2026 |
|---|
| 36, Camille Close940 m away | 43 m² | 76 m² | +33 m² +77% | 2021 |
|---|
| 186, Maple Road929 m away | 53 m² | 86 m² | +33 m² +62% | 2020 |
|---|
| 78, Cambridge Road841 m away | 82 m² | 115 m² | +33 m² +40% | 2018 |
|---|
| 22, Hamlet Road838 m away | 153 m² | 186 m² | +33 m² +22% | 2017 |
|---|
| Flat 7, Park House, Anerley Park456 m away | 57 m² | 90 m² | +33 m² +58% | 2009 |
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| 114, Anerley Park825 m away | 125 m² | 157 m² | +32 m² +26% | 2026 |
|---|
| 28, Bourdon Road642 m away | 99 m² | 131 m² | +32 m² +32% | 2024 |
|---|
| 64, Cambridge Road841 m away | 75 m² | 107 m² | +32 m² +43% | 2024 |
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| 29, Pelham Road869 m away | 102 m² | 134 m² | +32 m² +31% | 2022 |
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| 28, Oak Grove Road583 m away | 80 m² | 112 m² | +32 m² +40% | 2021 |
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| 5, Piquet Road846 m away | 118 m² | 150 m² | +32 m² +27% | 2018 |
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| 30, Stembridge Road669 m away | 85 m² | 117 m² | +32 m² +38% | 2013 |
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| 50a, Croydon Road742 m away | 69 m² | 100 m² | +31 m² +45% | 2021 |
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| 40, Stodart Road482 m away | 103 m² | 134 m² | +31 m² +30% | 2019 |
|---|
| 72a, Samos Road655 m away | 79 m² | 110 m² | +31 m² +39% | 2019 |
|---|
| 1, Wadhurst Close431 m away | 56 m² | 87 m² | +31 m² +55% | 2016 |
|---|
| 49b, Anerley Park607 m away | 80 m² | 111 m² | +31 m² +39% | 2015 |
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| 4, Silvermere Row827 m away | 86 m² | 117 m² | +31 m² +36% | 2015 |
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| 20, Warwick Road955 m away | 112 m² | 143 m² | +31 m² +28% | 2014 |
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| 9d, Warminster Road720 m away | 59 m² | 90 m² | +31 m² +53% | 2009 |
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| 105, Seymour Villas113 m away | 62 m² | 92 m² | +30 m² +48% | 2026 |
|---|
| Flat 25, Brooklyn, Anerley Road538 m away | 40 m² | 70 m² | +30 m² +75% | 2013 |
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| Flat 32, Hanover Court, Anerley Road990 m away | 38 m² | 67 m² | +29 m² +76% | 2023 |
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| 22a, Avington Grove799 m away | 35 m² | 64 m² | +29 m² +83% | 2022 |
|---|
| 12, Cromer Road994 m away | 76 m² | 105 m² | +29 m² +38% | 2022 |
|---|
| 42a, Fox Hill953 m away | 97 m² | 126 m² | +29 m² +30% | 2021 |
|---|
| 65, Cambridge Road818 m away | 70 m² | 99 m² | +29 m² +41% | 2020 |
|---|
| 170, Birkbeck Road953 m away | 86 m² | 115 m² | +29 m² +34% | 2020 |
|---|
| Flat F, 9, Hamlet Road792 m away | 31 m² | 60 m² | +29 m² +94% | 2017 |
|---|
| 50, Stembridge Road669 m away | 79 m² | 107 m² | +28 m² +35% | 2026 |
|---|
| 50c, Thicket Road828 m away | 67 m² | 95 m² | +28 m² +42% | 2022 |
|---|
| 123, Ravenscroft Road909 m away | 85 m² | 112 m² | +27 m² +32% | 2026 |
|---|
| 4a, Tremaine Road573 m away | 53 m² | 80 m² | +27 m² +51% | 2023 |
|---|
| 37b, Waldegrave Road872 m away | 37 m² | 63 m² | +26 m² +70% | 2023 |
|---|
| 56, Selby Road661 m away | 104 m² | 130 m² | +26 m² +25% | 2020 |
|---|
| Flat 6, Strood House, Evelina Road880 m away | 19 m² | 45 m² | +26 m² +137% | 2020 |
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| 166, Birkbeck Road953 m away | 87 m² | 113 m² | +26 m² +30% | 2020 |
|---|
| 48, Fox Hill953 m away | 110 m² | 136 m² | +26 m² +24% | 2020 |
|---|
| 2c, Hawthorn Grove359 m away | 96 m² | 122 m² | +26 m² +27% | 2014 |
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| 36, Sylvan Road905 m away | 45 m² | 71 m² | +26 m² +58% | 2014 |
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| 193, Birkbeck Road957 m away | 94 m² | 119 m² | +25 m² +27% | 2026 |
|---|
| 109, Elmers End Road876 m away | 50 m² | 75 m² | +25 m² +50% | 2023 |
|---|
| 29, Chesham Road822 m away | 55 m² | 80 m² | +25 m² +45% | 2019 |
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| 54, Warminster Road776 m away | 106 m² | 131 m² | +25 m² +24% | 2015 |
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| 24, Trenholme Road583 m away | 75 m² | 99 m² | +24 m² +32% | 2026 |
|---|
| 1, Seymour Terrace206 m away | 138 m² | 162 m² | +24 m² +17% | 2024 |
|---|
| 40, Kenilworth Road978 m away | 126 m² | 150 m² | +24 m² +19% | 2024 |
|---|
| Flat 1, 68, Belvedere Road782 m away | 89 m² | 113 m² | +24 m² +27% | 2023 |
|---|
| Flat 4, 180, Birkbeck Road953 m away | 49 m² | 73 m² | +24 m² +49% | 2022 |
|---|
| 114, Marlow Road752 m away | 99 m² | 123 m² | +24 m² +24% | 2020 |
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| Flat 5, 26, Chestnut Grove494 m away | 45 m² | 69 m² | +24 m² +53% | 2017 |
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| Flat 3, Ridgway Court, 22, Lancaster Road993 m away | 38 m² | 62 m² | +24 m² +63% | 2016 |
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| 66, Cambridge Road841 m away | 81 m² | 105 m² | +24 m² +30% | 2015 |
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| 152, Maple Road830 m away | 52 m² | 75 m² | +23 m² +44% | 2025 |
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| 30, Seymour Villas117 m away | 74 m² | 97 m² | +23 m² +31% | 2024 |
|---|
| 27, Ash Grove707 m away | 101 m² | 124 m² | +23 m² +23% | 2022 |
|---|
| Flat 10, Golden Mews, 15, Howard Road680 m away | 71 m² | 94 m² | +23 m² +32% | 2018 |
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| Flat 4, 9, St Johns Road993 m away | 37 m² | 60 m² | +23 m² +62% | 2018 |
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| 58, Hawthorn Grove359 m away | 52 m² | 75 m² | +23 m² +44% | 2017 |
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| 65, William Booth Road370 m away | 40 m² | 63 m² | +23 m² +57% | 2014 |
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| 41, William Booth Road370 m away | 40 m² | 63 m² | +23 m² +57% | 2014 |
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| Flat 22, Brooklyn, Anerley Road538 m away | 66 m² | 89 m² | +23 m² +35% | 2012 |
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| 11, Trenholme Road583 m away | 87 m² | 109 m² | +22 m² +25% | 2023 |
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| 20a, Ash Grove707 m away | 48 m² | 70 m² | +22 m² +46% | 2023 |
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| 35, Sheringham Road857 m away | 83 m² | 105 m² | +22 m² +27% | 2021 |
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| 24a, Jasmine Grove236 m away | 31 m² | 53 m² | +22 m² +71% | 2020 |
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| 7a, Howard Road680 m away | 85 m² | 107 m² | +22 m² +26% | 2020 |
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| Flat 7, 56, Thicket Road828 m away | 41 m² | 63 m² | +22 m² +54% | 2020 |
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| Flat 2, 11, Thicket Road653 m away | 35 m² | 57 m² | +22 m² +63% | 2019 |
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| 19, High Street937 m away | 78 m² | 100 m² | +22 m² +28% | 2019 |
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| 18, Piquet Road835 m away | 108 m² | 130 m² | +22 m² +20% | 2018 |
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| Flat 6b, Ellesmere Court, Seymour Villas285 m away | 70 m² | 92 m² | +22 m² +31% | 2017 |
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| Flat C, 9, Hamlet Road792 m away | 42 m² | 64 m² | +22 m² +52% | 2017 |
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| Flat 26, Roberts Court, Maple Road495 m away | 39 m² | 61 m² | +22 m² +56% | 2014 |
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| Flat 15, Penceat Court, 17, Bourdon Road660 m away | 29 m² | 51 m² | +22 m² +76% | 2013 |
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| Flat 46, Wheathill House, Croydon Road624 m away | 66 m² | 88 m² | +22 m² +33% | 2012 |
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| 14, Parkside Close896 m away | 60 m² | 81 m² | +21 m² +35% | 2025 |
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| 51, Selby Road661 m away | 99 m² | 120 m² | +21 m² +21% | 2023 |
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| 152, Ravenscroft Road876 m away | 66 m² | 87 m² | +21 m² +32% | 2022 |
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| 26, Felmingham Road828 m away | 75 m² | 96 m² | +21 m² +28% | 2021 |
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| 38, Camille Close940 m away | 40 m² | 61 m² | +21 m² +53% | 2021 |
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| Flat 4, 19, Thicket Road653 m away | 30 m² | 51 m² | +21 m² +70% | 2019 |
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| 133, Elmers End Road876 m away | 81 m² | 102 m² | +21 m² +26% | 2019 |
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| 30, Piquet Road835 m away | 83 m² | 104 m² | +21 m² +25% | 2018 |
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| Flat 2, Brooklyn, Anerley Road538 m away | 49 m² | 70 m² | +21 m² +43% | 2014 |
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| 10, Graveney Grove572 m away | 82 m² | 103 m² | +21 m² +26% | 2014 |
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| Flat 49, Deverill Court, Avenue Road784 m away | 59 m² | 79 m² | +20 m² +34% | 2026 |
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| Flat 10, Isis House, 5, Worcester Close569 m away | 64 m² | 84 m² | +20 m² +31% | 2025 |
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| Flat 20, Isis House, 5, Worcester Close569 m away | 64 m² | 84 m² | +20 m² +31% | 2023 |
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| 243, Ravenscroft Road808 m away | 63 m² | 83 m² | +20 m² +32% | 2022 |
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| 47a, Anerley Park607 m away | 101 m² | 121 m² | +20 m² +20% | 2021 |
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| 16a, Avington Grove799 m away | 84 m² | 104 m² | +20 m² +24% | 2021 |
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| 220b, Birkbeck Road855 m away | 21 m² | 41 m² | +20 m² +95% | 2020 |
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| Flat 1, Foxley Manor, 24, Anerley Park468 m away | 27 m² | 47 m² | +20 m² +74% | 2015 |
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| 102a, Croydon Road517 m away | 76 m² | 96 m² | +20 m² +26% | 2014 |
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| 68, Sylvan Road905 m away | 73 m² | 93 m² | +20 m² +27% | 2013 |
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| 39, Cambridge Road818 m away | 93 m² | 113 m² | +20 m² +22% | 2012 |
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| 192a, Anerley Road0 m away | 40 m² | 59 m² | +19 m² +48% | 2025 |
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| 21a, Waldegrave Road872 m away | 110 m² | 129 m² | +19 m² +17% | 2025 |
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| 147, Ravenscroft Road909 m away | 83 m² | 102 m² | +19 m² +23% | 2025 |
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| 5, Trenholme Terrace514 m away | 46 m² | 65 m² | +19 m² +41% | 2024 |
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| 18, Adair Close971 m away | 94 m² | 113 m² | +19 m² +20% | 2024 |
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| 168, Birkbeck Road953 m away | 97 m² | 116 m² | +19 m² +20% | 2019 |
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| 20a, Castledine Road456 m away | 57 m² | 76 m² | +19 m² +33% | 2018 |
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| 57, Penge Road884 m away | 63 m² | 82 m² | +19 m² +30% | 2017 |
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| 23, Ridsdale Road333 m away | 45 m² | 64 m² | +19 m² +42% | 2015 |
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| 5, Cranleigh Close209 m away | 38 m² | 57 m² | +19 m² +50% | 2014 |
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| 83d, Anerley Road557 m away | 94 m² | 113 m² | +19 m² +20% | 2012 |
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| Flat 6, Drake Court, Warminster Road906 m away | 48 m² | 67 m² | +19 m² +40% | 2012 |
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| 9, Owen Walk405 m away | 56 m² | 74 m² | +18 m² +32% | 2024 |
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| 26a, Felmingham Road828 m away | 47 m² | 65 m² | +18 m² +38% | 2023 |
|---|
| Flat 16, Readman Court, 42, Jasmine Grove284 m away | 37 m² | 55 m² | +18 m² +49% | 2022 |
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| Flat 11, 175, Anerley Road46 m away | 42 m² | 60 m² | +18 m² +43% | 2020 |
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| 101, Tovil Close472 m away | 82 m² | 100 m² | +18 m² +22% | 2019 |
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| 12, Sheldon Close202 m away | 43 m² | 61 m² | +18 m² +42% | 2015 |
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| 6, Parkside Close896 m away | 69 m² | 87 m² | +18 m² +26% | 2014 |
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| Flat 12, Ellesmere Court, Seymour Villas285 m away | 69 m² | 87 m² | +18 m² +26% | 2012 |
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| 185a, Anerley Road177 m away | 70 m² | 88 m² | +18 m² +26% | 2011 |
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| 4, Shirley Row857 m away | 99 m² | 116 m² | +17 m² +17% | 2023 |
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| 9, Trenholme Road583 m away | 87 m² | 104 m² | +17 m² +20% | 2022 |
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| 2, Pittville Gardens881 m away | 92 m² | 109 m² | +17 m² +18% | 2022 |
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| 30, Avenue Road846 m away | 107 m² | 124 m² | +17 m² +16% | 2021 |
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| Flat 5, Toli Court, 71, Avenue Road978 m away | 78 m² | 95 m² | +17 m² +22% | 2021 |
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| 12, Maberley Road660 m away | 57 m² | 74 m² | +17 m² +30% | 2018 |
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| 56, Cambridge Road841 m away | 90 m² | 107 m² | +17 m² +19% | 2018 |
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| 47a, Marlow Road759 m away | 72 m² | 89 m² | +17 m² +24% | 2015 |
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| 71, Maple Road547 m away | 76 m² | 93 m² | +17 m² +22% | 2014 |
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| Flat 43, Brooklyn, Anerley Road538 m away | 53 m² | 70 m² | +17 m² +32% | 2013 |
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| Flat 1, 110, Oakfield Road711 m away | 55 m² | 71 m² | +16 m² +29% | 2026 |
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| Flat D, 35, Anerley Park545 m away | 54 m² | 70 m² | +16 m² +30% | 2025 |
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| Flat 6, Golden Mews, 15, Howard Road680 m away | 54 m² | 70 m² | +16 m² +30% | 2025 |
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| Regal House, 28a, Kings Road920 m away | 49 m² | 65 m² | +16 m² +33% | 2023 |
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| 21a, Padua Road583 m away | 38 m² | 54 m² | +16 m² +42% | 2021 |
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| 1 Grace Mews, 40, Marlow Road712 m away | 92 m² | 108 m² | +16 m² +17% | 2021 |
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| Flat B, 44, Fox Hill953 m away | 52 m² | 68 m² | +16 m² +31% | 2021 |
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| Flat 4, 141, Croydon Road414 m away | 41 m² | 57 m² | +16 m² +39% | 2020 |
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| Flat 2, 32, Anerley Park488 m away | 58 m² | 74 m² | +16 m² +28% | 2020 |
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| 1, Thornsett Terrace562 m away | 80 m² | 96 m² | +16 m² +20% | 2018 |
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| 6a, Avington Grove799 m away | 86 m² | 102 m² | +16 m² +19% | 2016 |
|---|
| 259a, Mackenzie Road975 m away | 65 m² | 81 m² | +16 m² +25% | 2016 |
|---|
| 13, Oak Grove Road601 m away | 85 m² | 101 m² | +16 m² +19% | 2014 |
|---|
| 20c, Castledine Road456 m away | 35 m² | 50 m² | +15 m² +43% | 2025 |
|---|
| 48, Anerley Park488 m away | 95 m² | 110 m² | +15 m² +16% | 2025 |
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| Flat 12, Howard House, Howard Road620 m away | 46 m² | 61 m² | +15 m² +33% | 2025 |
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| 46, Pelham Road876 m away | 84 m² | 99 m² | +15 m² +18% | 2025 |
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| 14, Camille Close940 m away | 54 m² | 69 m² | +15 m² +28% | 2024 |
|---|
| 190b, Anerley Road0 m away | 40 m² | 55 m² | +15 m² +38% | 2022 |
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| 56, Oak Grove Road763 m away | 75 m² | 90 m² | +15 m² +20% | 2021 |
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