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 BR3 4TP
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 |
|---|---|---|---|---|
| 18, Reddons Road678 m away | 246 m² | 387 m² | +141 m² +57% | 2012 |
| 41, Beck Lane790 m away | 89 m² | 220 m² | +131 m² +147% | 2023 |
| 130, Maple Road714 m away | 100 m² | 210 m² | +110 m² +110% | 2014 |
| 35, Hayne Road928 m away | 199 m² | 305 m² | +106 m² +53% | 2014 |
| 26, Avington Grove943 m away | 192 m² | 290 m² | +98 m² +51% | 2014 |
| 37, Kings Hall Road521 m away | 187 m² | 280 m² | +93 m² +50% | 2021 |
| 67, Kings Hall Road591 m away | 124 m² | 215 m² | +91 m² +73% | 2020 |
| 27, Clock House Road594 m away | 64 m² | 152 m² | +88 m² +138% | 2024 |
| 41, Elmers End Road712 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.
| 116 m² |
| 201 m² |
| +85 m² +73% |
| 2025 |
| 136, Lennard Road946 m away | 139 m² | 220 m² | +81 m² +58% | 2026 |
|---|
| 29, Maple Road776 m away | 76 m² | 157 m² | +81 m² +107% | 2018 |
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| 194, Beckenham Road197 m away | 337 m² | 418 m² | +81 m² +24% | 2017 |
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| 45, Cromwell Road775 m away | 135 m² | 213 m² | +78 m² +58% | 2023 |
|---|
| 57, Hampden Avenue790 m away | 98 m² | 170 m² | +72 m² +73% | 2025 |
|---|
| 191, Ravenscroft Road395 m away | 63 m² | 135 m² | +72 m² +114% | 2021 |
|---|
| 98, Avenue Road234 m away | 72 m² | 143 m² | +71 m² +99% | 2025 |
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| 26, Ravenscroft Road40 m away | 89 m² | 157 m² | +68 m² +76% | 2025 |
|---|
| 115, Croydon Road902 m away | 261 m² | 329 m² | +68 m² +26% | 2017 |
|---|
| 19, Chesham Crescent466 m away | 105 m² | 172 m² | +67 m² +64% | 2014 |
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| 45, Kingsdale Road434 m away | 64 m² | 128 m² | +64 m² +100% | 2020 |
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| 80, Ravenscroft Road40 m away | 102 m² | 164 m² | +62 m² +61% | 2020 |
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| 48, Barnmead Road360 m away | 117 m² | 179 m² | +62 m² +53% | 2020 |
|---|
| 50, Birkbeck Road75 m away | 106 m² | 166 m² | +60 m² +57% | 2025 |
|---|
| 152, Blandford Road253 m away | 83 m² | 143 m² | +60 m² +72% | 2021 |
|---|
| 35, Hampden Road793 m away | 73 m² | 133 m² | +60 m² +82% | 2018 |
|---|
| 295, Beckenham Road147 m away | 125 m² | 185 m² | +60 m² +48% | 2016 |
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| 58, Forster Road973 m away | 115 m² | 174 m² | +59 m² +51% | 2023 |
|---|
| 5a, Villiers Road394 m away | 92 m² | 151 m² | +59 m² +64% | 2019 |
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| 263, Kent House Road710 m away | 131 m² | 187 m² | +56 m² +43% | 2024 |
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| 90, Lennard Road927 m away | 204 m² | 260 m² | +56 m² +27% | 2018 |
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| 214, Kent House Road753 m away | 120 m² | 175 m² | +55 m² +46% | 2026 |
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| 62, Forster Road973 m away | 111 m² | 165 m² | +54 m² +49% | 2025 |
|---|
| 6, Kenilworth Road268 m away | 104 m² | 158 m² | +54 m² +52% | 2020 |
|---|
| 81, Mackenzie Road203 m away | 60 m² | 113 m² | +53 m² +88% | 2022 |
|---|
| 260, Kent House Road753 m away | 113 m² | 166 m² | +53 m² +47% | 2016 |
|---|
| 43, Chaffinch Road731 m away | 87 m² | 139 m² | +52 m² +60% | 2025 |
|---|
| 43, Reddons Road703 m away | 181 m² | 233 m² | +52 m² +29% | 2021 |
|---|
| 204, Clock House Road970 m away | 84 m² | 134 m² | +50 m² +60% | 2026 |
|---|
| 5, Southey Street747 m away | 94 m² | 144 m² | +50 m² +53% | 2025 |
|---|
| 35, Forster Road872 m away | 101 m² | 151 m² | +50 m² +50% | 2025 |
|---|
| 86, Barnmead Road314 m away | 97 m² | 146 m² | +49 m² +51% | 2022 |
|---|
| 106, Mackenzie Road158 m away | 76 m² | 125 m² | +49 m² +64% | 2016 |
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| 100, Forster Road973 m away | 98 m² | 147 m² | +49 m² +50% | 2016 |
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| 167, Ravenscroft Road395 m away | 97 m² | 145 m² | +48 m² +49% | 2026 |
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| 37, Belmont Road989 m away | 86 m² | 134 m² | +48 m² +56% | 2024 |
|---|
| 5, Kenilworth Road268 m away | 98 m² | 146 m² | +48 m² +49% | 2022 |
|---|
| 87, Chaffinch Road731 m away | 91 m² | 139 m² | +48 m² +53% | 2022 |
|---|
| 34, Pelham Road541 m away | 104 m² | 152 m² | +48 m² +46% | 2021 |
|---|
| 70, Durban Road947 m away | 93 m² | 141 m² | +48 m² +52% | 2019 |
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| 13, Durban Road971 m away | 90 m² | 138 m² | +48 m² +53% | 2018 |
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| 17, Villiers Road394 m away | 101 m² | 148 m² | +47 m² +47% | 2024 |
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| 217, Clock House Road940 m away | 82 m² | 129 m² | +47 m² +57% | 2022 |
|---|
| 15, Whateley Road740 m away | 85 m² | 132 m² | +47 m² +55% | 2021 |
|---|
| 34, Hampden Road779 m away | 94 m² | 141 m² | +47 m² +50% | 2021 |
|---|
| 131, Parish Lane741 m away | 75 m² | 122 m² | +47 m² +63% | 2017 |
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| 31, Cromwell Road775 m away | 120 m² | 167 m² | +47 m² +39% | 2016 |
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| 91, Blandford Road279 m away | 72 m² | 118 m² | +46 m² +64% | 2026 |
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| 10a, Avington Grove943 m away | 58 m² | 104 m² | +46 m² +79% | 2025 |
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| 90, Durban Road947 m away | 90 m² | 136 m² | +46 m² +51% | 2025 |
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| 76, Kings Hall Road485 m away | 203 m² | 248 m² | +45 m² +22% | 2026 |
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| 386, Blandford Road634 m away | 71 m² | 116 m² | +45 m² +63% | 2022 |
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| 311, Blandford Road700 m away | 86 m² | 131 m² | +45 m² +52% | 2022 |
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| 57, Belmont Road989 m away | 133 m² | 177 m² | +44 m² +33% | 2025 |
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| 32, Hampden Road779 m away | 95 m² | 139 m² | +44 m² +46% | 2022 |
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| 5, Dorset Road940 m away | 104 m² | 148 m² | +44 m² +42% | 2022 |
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| 250, Blandford Road354 m away | 66 m² | 109 m² | +43 m² +65% | 2025 |
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| 29, Ash Grove652 m away | 85 m² | 128 m² | +43 m² +51% | 2022 |
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| 39, Queen Adelaide Road896 m away | 31 m² | 74 m² | +43 m² +139% | 2010 |
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| 155, Churchfields Road471 m away | 84 m² | 126 m² | +42 m² +50% | 2023 |
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| 90, Belmont Road846 m away | 74 m² | 116 m² | +42 m² +57% | 2023 |
|---|
| 116, Mackenzie Road328 m away | 104 m² | 146 m² | +42 m² +40% | 2022 |
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| 33, Kenilworth Road268 m away | 91 m² | 133 m² | +42 m² +46% | 2020 |
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| 18, Green Lane587 m away | 49 m² | 91 m² | +42 m² +86% | 2016 |
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| 65, Kendall Road511 m away | 82 m² | 123 m² | +41 m² +50% | 2026 |
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| 48, Chesham Road384 m away | 121 m² | 162 m² | +41 m² +34% | 2025 |
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| 235, Birkbeck Road648 m away | 64 m² | 105 m² | +41 m² +64% | 2025 |
|---|
| 12, Cromwell Road967 m away | 99 m² | 140 m² | +41 m² +41% | 2024 |
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| 61, Forster Road996 m away | 86 m² | 127 m² | +41 m² +48% | 2024 |
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| 30, Felmingham Road887 m away | 72 m² | 113 m² | +41 m² +57% | 2023 |
|---|
| 42, Clock House Road626 m away | 139 m² | 180 m² | +41 m² +29% | 2020 |
|---|
| 7, Forster Road872 m away | 121 m² | 161 m² | +40 m² +33% | 2026 |
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| 36, Pelham Road541 m away | 108 m² | 148 m² | +40 m² +37% | 2025 |
|---|
| 25, Clement Road501 m away | 82 m² | 122 m² | +40 m² +49% | 2023 |
|---|
| 43, Durban Road971 m away | 89 m² | 129 m² | +40 m² +45% | 2017 |
|---|
| 84, Clock House Road669 m away | 123 m² | 162 m² | +39 m² +32% | 2026 |
|---|
| 30, Colesburg Road993 m away | 86 m² | 125 m² | +39 m² +45% | 2026 |
|---|
| 171, Kings Hall Road954 m away | 154 m² | 193 m² | +39 m² +25% | 2025 |
|---|
| 85, Ravenscroft Road0 m away | 91 m² | 130 m² | +39 m² +43% | 2024 |
|---|
| 26, Barnmead Road360 m away | 194 m² | 233 m² | +39 m² +20% | 2021 |
|---|
| 285, Beckenham Road147 m away | 59 m² | 97 m² | +38 m² +64% | 2026 |
|---|
| 134, Blandford Road253 m away | 110 m² | 148 m² | +38 m² +35% | 2023 |
|---|
| 44, Durban Road947 m away | 91 m² | 129 m² | +38 m² +42% | 2020 |
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| Flat 61, Queen Adelaide Court, Queen Adelaide Road957 m away | 36 m² | 74 m² | +38 m² +106% | 2020 |
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| 181, High Street448 m away | 32 m² | 70 m² | +38 m² +119% | 2019 |
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| 174, Beckenham Road197 m away | 178 m² | 215 m² | +37 m² +21% | 2026 |
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| 130, Mackenzie Road328 m away | 95 m² | 132 m² | +37 m² +39% | 2026 |
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| 51, Belmont Road989 m away | 99 m² | 136 m² | +37 m² +37% | 2026 |
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| 2, Kendall Road484 m away | 125 m² | 162 m² | +37 m² +30% | 2024 |
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| 88, Lennard Road927 m away | 204 m² | 241 m² | +37 m² +18% | 2023 |
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| 37, Kenilworth Road268 m away | 85 m² | 122 m² | +37 m² +44% | 2022 |
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| 40, Barnmead Road360 m away | 164 m² | 200 m² | +36 m² +22% | 2023 |
|---|
| 76, Blandford Road258 m away | 86 m² | 122 m² | +36 m² +42% | 2021 |
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| 49, Hampden Road793 m away | 93 m² | 129 m² | +36 m² +39% | 2019 |
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| 1, Birkbeck Road103 m away | 45 m² | 81 m² | +36 m² +80% | 2018 |
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| 50, Allen Road515 m away | 90 m² | 125 m² | +35 m² +39% | 2025 |
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| 129, Croydon Road902 m away | 227 m² | 262 m² | +35 m² +15% | 2024 |
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| 73, Ravenscroft Road0 m away | 101 m² | 136 m² | +35 m² +35% | 2022 |
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| 120, Elmers End Road763 m away | 106 m² | 141 m² | +35 m² +33% | 2022 |
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| 68, Durban Road947 m away | 107 m² | 142 m² | +35 m² +33% | 2022 |
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| 7, Blandford Avenue318 m away | 84 m² | 119 m² | +35 m² +42% | 2017 |
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| 28, Colesburg Road993 m away | 91 m² | 126 m² | +35 m² +38% | 2017 |
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| 277, Beckenham Road147 m away | 103 m² | 138 m² | +35 m² +34% | 2014 |
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| 16, Elmers End Road762 m away | 124 m² | 158 m² | +34 m² +27% | 2026 |
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| 132, Birkbeck Road393 m away | 117 m² | 151 m² | +34 m² +29% | 2024 |
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| Inchbare, Maple Road910 m away | 34 m² | 68 m² | +34 m² +100% | 2023 |
|---|
| 55, Wordsworth Road726 m away | 89 m² | 123 m² | +34 m² +38% | 2021 |
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| 18, Hampden Avenue800 m away | 100 m² | 134 m² | +34 m² +34% | 2020 |
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| 172, Birkbeck Road393 m away | 84 m² | 118 m² | +34 m² +40% | 2019 |
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| 119, Mackenzie Road334 m away | 110 m² | 144 m² | +34 m² +31% | 2018 |
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| 13, Stodart Road678 m away | 131 m² | 165 m² | +34 m² +26% | 2017 |
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| 17, Padua Road621 m away | 61 m² | 95 m² | +34 m² +56% | 2016 |
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| 16, Padua Road621 m away | 119 m² | 152 m² | +33 m² +28% | 2026 |
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| 116, Blandford Road253 m away | 85 m² | 118 m² | +33 m² +39% | 2023 |
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| 19, Eastwell Close519 m away | 90 m² | 123 m² | +33 m² +37% | 2021 |
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| 186, Maple Road760 m away | 53 m² | 86 m² | +33 m² +62% | 2020 |
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| 38, Birkbeck Road75 m away | 99 m² | 131 m² | +32 m² +32% | 2026 |
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| 63, Chaffinch Road731 m away | 90 m² | 122 m² | +32 m² +36% | 2025 |
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| 28, Bourdon Road870 m away | 99 m² | 131 m² | +32 m² +32% | 2024 |
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| 29, Pelham Road577 m away | 102 m² | 134 m² | +32 m² +31% | 2022 |
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| 130, Lennard Road946 m away | 68 m² | 100 m² | +32 m² +47% | 2022 |
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| 28, Oak Grove Road639 m away | 80 m² | 112 m² | +32 m² +40% | 2021 |
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| 186, Clock House Road868 m away | 84 m² | 116 m² | +32 m² +38% | 2019 |
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| 5, Piquet Road814 m away | 118 m² | 150 m² | +32 m² +27% | 2018 |
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| 16, Blandford Road258 m away | 95 m² | 127 m² | +32 m² +34% | 2015 |
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| 62, Barnmead Road360 m away | 120 m² | 151 m² | +31 m² +26% | 2026 |
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| 31, Torr Road520 m away | 86 m² | 117 m² | +31 m² +36% | 2023 |
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| 50a, Croydon Road504 m away | 69 m² | 100 m² | +31 m² +45% | 2021 |
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| Flat 7, Clock House Court, Clock House Road630 m away | 39 m² | 70 m² | +31 m² +79% | 2019 |
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| 40, Stodart Road678 m away | 103 m² | 134 m² | +31 m² +30% | 2019 |
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| 72a, Samos Road943 m away | 79 m² | 110 m² | +31 m² +39% | 2019 |
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| 22, Hampden Avenue800 m away | 103 m² | 133 m² | +30 m² +29% | 2026 |
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| 46, Blandford Road258 m away | 98 m² | 128 m² | +30 m² +31% | 2025 |
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| 94, Forster Road973 m away | 133 m² | 163 m² | +30 m² +23% | 2024 |
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| 41, Arrol Road707 m away | 75 m² | 105 m² | +30 m² +40% | 2022 |
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| 17, Durban Road971 m away | 89 m² | 119 m² | +30 m² +34% | 2021 |
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| 60, Rowden Road712 m away | 106 m² | 136 m² | +30 m² +28% | 2018 |
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| 3, Durban Road971 m away | 80 m² | 110 m² | +30 m² +38% | 2017 |
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| 15, Green Lane587 m away | 111 m² | 141 m² | +30 m² +27% | 2015 |
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| 13, Kings Hall Road521 m away | 168 m² | 197 m² | +29 m² +17% | 2024 |
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| 22a, Avington Grove943 m away | 35 m² | 64 m² | +29 m² +83% | 2022 |
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| 150, Beckenham Road197 m away | 178 m² | 207 m² | +29 m² +16% | 2021 |
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| 170, Birkbeck Road393 m away | 86 m² | 115 m² | +29 m² +34% | 2020 |
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| 49, Clevedon Road204 m away | 107 m² | 136 m² | +29 m² +27% | 2018 |
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| 14, Durban Road947 m away | 101 m² | 130 m² | +29 m² +29% | 2017 |
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| 109, Elmers End Road732 m away | 51 m² | 79 m² | +28 m² +55% | 2023 |
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| 265a, Beckenham Road147 m away | 74 m² | 102 m² | +28 m² +38% | 2021 |
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| 27, Hampden Road793 m away | 93 m² | 121 m² | +28 m² +30% | 2019 |
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| 28, Green Lane551 m away | 88 m² | 116 m² | +28 m² +32% | 2015 |
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| 51, Durban Road971 m away | 88 m² | 116 m² | +28 m² +32% | 2010 |
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| 123, Ravenscroft Road395 m away | 85 m² | 112 m² | +27 m² +32% | 2026 |
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| Flat 10, Queen Adelaide Court, Queen Adelaide Road915 m away | 45 m² | 72 m² | +27 m² +60% | 2025 |
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| 70, Wordsworth Road696 m away | 91 m² | 118 m² | +27 m² +30% | 2024 |
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| 26, Churchfields Road359 m away | 86 m² | 113 m² | +27 m² +31% | 2022 |
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| 36, Somerville Road810 m away | 95 m² | 122 m² | +27 m² +28% | 2022 |
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| 50, Barnmead Road360 m away | 150 m² | 177 m² | +27 m² +18% | 2021 |
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| 105, Avenue Road192 m away | 71 m² | 98 m² | +27 m² +38% | 2020 |
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| 23, Colesburg Road993 m away | 81 m² | 108 m² | +27 m² +33% | 2020 |
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| 87, Clock House Road639 m away | 124 m² | 151 m² | +27 m² +22% | 2019 |
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| 76, Ravenscroft Road40 m away | 114 m² | 141 m² | +27 m² +24% | 2017 |
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| 94, Ravenscroft Road40 m away | 113 m² | 140 m² | +27 m² +24% | 2017 |
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| Flat 5, 101a, Parish Lane553 m away | 36 m² | 62 m² | +26 m² +72% | 2025 |
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| 34, Kings Hall Road478 m away | 114 m² | 140 m² | +26 m² +23% | 2023 |
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| 68, Lennard Road927 m away | 169 m² | 195 m² | +26 m² +15% | 2023 |
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| 23, Cottingham Road502 m away | 78 m² | 104 m² | +26 m² +33% | 2022 |
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| 166, Birkbeck Road393 m away | 87 m² | 113 m² | +26 m² +30% | 2020 |
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| Flat 6, Strood House, Evelina Road608 m away | 19 m² | 45 m² | +26 m² +137% | 2020 |
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| 2c, Hawthorn Grove976 m away | 96 m² | 122 m² | +26 m² +27% | 2014 |
|---|
| 193, Birkbeck Road455 m away | 94 m² | 119 m² | +25 m² +27% | 2026 |
|---|
| 1, Colesburg Road993 m away | 98 m² | 123 m² | +25 m² +26% | 2026 |
|---|
| 14, Villiers Road394 m away | 73 m² | 98 m² | +25 m² +34% | 2024 |
|---|
| 4, Hampden Road779 m away | 131 m² | 156 m² | +25 m² +19% | 2023 |
|---|
| 124, Blandford Road253 m away | 74 m² | 99 m² | +25 m² +34% | 2020 |
|---|
| 22, Green Lane587 m away | 42 m² | 67 m² | +25 m² +60% | 2020 |
|---|
| 29, Chesham Road384 m away | 55 m² | 80 m² | +25 m² +45% | 2019 |
|---|
| 39, Durban Road971 m away | 89 m² | 114 m² | +25 m² +28% | 2019 |
|---|
| 8, Green Lane587 m away | 83 m² | 108 m² | +25 m² +30% | 2009 |
|---|
| 76, Mackenzie Road158 m away | 86 m² | 110 m² | +24 m² +28% | 2025 |
|---|
| 40, Kenilworth Road268 m away | 126 m² | 150 m² | +24 m² +19% | 2024 |
|---|
| 59, Cromwell Road775 m away | 82 m² | 106 m² | +24 m² +29% | 2023 |
|---|
| 30, Birkbeck Road75 m away | 89 m² | 113 m² | +24 m² +27% | 2022 |
|---|
| Flat 4, 180, Birkbeck Road393 m away | 49 m² | 73 m² | +24 m² +49% | 2022 |
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| 27, Albert Road906 m away | 44 m² | 68 m² | +24 m² +55% | 2021 |
|---|
| 19, Chaffinch Road559 m away | 93 m² | 117 m² | +24 m² +26% | 2018 |
|---|
| 18, Piquet Road843 m away | 106 m² | 130 m² | +24 m² +23% | 2018 |
|---|
| Flat 5, 26, Chestnut Grove853 m away | 45 m² | 69 m² | +24 m² +53% | 2017 |
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| 25, Whateley Road740 m away | 90 m² | 113 m² | +23 m² +26% | 2026 |
|---|
| 152, Maple Road714 m away | 52 m² | 75 m² | +23 m² +44% | 2025 |
|---|
| 76, Birkbeck Road105 m away | 92 m² | 115 m² | +23 m² +25% | 2022 |
|---|
| 12, Villiers Road394 m away | 74 m² | 97 m² | +23 m² +31% | 2022 |
|---|
| 27, Ash Grove652 m away | 101 m² | 124 m² | +23 m² +23% | 2022 |
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