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 BN1 8XD
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 |
|---|---|---|---|---|
| 9, Withdean Crescent960 m away | 137 m² | 337 m² | +200 m² +146% | 2013 |
| 24, Peacock Lane873 m away | 116 m² | 274 m² | +158 m² +136% | 2023 |
| 55, Old Mill Close361 m away | 98 m² | 245 m² | +147 m² +150% | 2021 |
| 29, Brangwyn Drive51 m away | 134 m² | 276 m² | +142 m² +106% | 2022 |
| 139, Vale Avenue764 m away | 99 m² | 222 m² | +123 m² +124% | 2024 |
| 28, Ridgeside Avenue397 m away | 82 m² | 204 m² | +122 m² +149% | 2022 |
| 29, Brangwyn Avenue63 m away | 157 m² | 276 m² | +119 m² +76% | 2022 |
| 51, Redhill Drive774 m away | 105 m² | 223 m² | +118 m² +112% | 2012 |
| 140, Carden Avenue715 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.
| 103 m² |
| 217 m² |
| +114 m² +111% |
| 2025 |
| 15, Court Close696 m away | 105 m² | 214 m² | +109 m² +104% | 2013 |
|---|
| 4, Redhill Drive995 m away | 131 m² | 234 m² | +103 m² +79% | 2016 |
|---|
| 109, Windmill Drive387 m away | 75 m² | 177 m² | +102 m² +136% | 2014 |
|---|
| 40, Ridgeside Avenue397 m away | 84 m² | 185 m² | +101 m² +120% | 2016 |
|---|
| 4, Brangwyn Crescent246 m away | 141 m² | 232 m² | +91 m² +65% | 2018 |
|---|
| 77, Peacock Lane873 m away | 154 m² | 241 m² | +87 m² +56% | 2022 |
|---|
| 32, The Park Apartments, London Road822 m away | 70 m² | 157 m² | +87 m² +124% | 2019 |
|---|
| 6, Winfield Avenue603 m away | 73 m² | 159 m² | +86 m² +118% | 2024 |
|---|
| 54, Windmill Drive435 m away | 73 m² | 157 m² | +84 m² +115% | 2013 |
|---|
| 20, Peacock Lane873 m away | 148 m² | 229 m² | +81 m² +55% | 2021 |
|---|
| 35, Withdean Crescent960 m away | 129 m² | 210 m² | +81 m² +63% | 2017 |
|---|
| 39, Westdene Drive829 m away | 78 m² | 159 m² | +81 m² +104% | 2015 |
|---|
| 32, Highbank516 m away | 114 m² | 194 m² | +80 m² +70% | 2019 |
|---|
| 2a, Colebrook Road713 m away | 95 m² | 173 m² | +78 m² +82% | 2014 |
|---|
| 8, Winfield Avenue603 m away | 72 m² | 149 m² | +77 m² +107% | 2017 |
|---|
| 49, Hillcrest727 m away | 69 m² | 145 m² | +76 m² +110% | 2017 |
|---|
| 45, Hillcrest727 m away | 65 m² | 140 m² | +75 m² +115% | 2015 |
|---|
| 16, Brangwyn Way112 m away | 195 m² | 269 m² | +74 m² +38% | 2022 |
|---|
| 30, Brangwyn Drive0 m away | 134 m² | 207 m² | +73 m² +54% | 2026 |
|---|
| 45, Millcroft899 m away | 80 m² | 153 m² | +73 m² +91% | 2017 |
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| 66, Valley Drive912 m away | 83 m² | 155 m² | +72 m² +87% | 2018 |
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| 3, Deneside231 m away | 70 m² | 140 m² | +70 m² +100% | 2025 |
|---|
| 61, Dale Crescent974 m away | 77 m² | 147 m² | +70 m² +91% | 2016 |
|---|
| 4, Overhill Drive479 m away | 83 m² | 152 m² | +69 m² +83% | 2016 |
|---|
| 10, Peacock Lane873 m away | 156 m² | 225 m² | +69 m² +44% | 2015 |
|---|
| 48, Brangwyn Avenue70 m away | 130 m² | 197 m² | +67 m² +52% | 2021 |
|---|
| 16, Mill Rise802 m away | 116 m² | 182 m² | +66 m² +57% | 2019 |
|---|
| 9, Eldred Avenue567 m away | 136 m² | 201 m² | +65 m² +48% | 2026 |
|---|
| Karibu, London Road802 m away | 162 m² | 227 m² | +65 m² +40% | 2025 |
|---|
| 34, Braybon Avenue847 m away | 55 m² | 120 m² | +65 m² +118% | 2023 |
|---|
| 61, Ladies Mile Road750 m away | 85 m² | 149 m² | +64 m² +75% | 2019 |
|---|
| 33, Brangwyn Avenue63 m away | 110 m² | 173 m² | +63 m² +57% | 2019 |
|---|
| 26, Millcroft875 m away | 77 m² | 140 m² | +63 m² +82% | 2018 |
|---|
| 48, Bankside550 m away | 82 m² | 144 m² | +62 m² +76% | 2018 |
|---|
| 59, Withdean Crescent960 m away | 70 m² | 132 m² | +62 m² +89% | 2013 |
|---|
| 70, Windmill Drive435 m away | 122 m² | 183 m² | +61 m² +50% | 2024 |
|---|
| 1, Audrey Close311 m away | 87 m² | 148 m² | +61 m² +70% | 2013 |
|---|
| 10, Redhill Drive995 m away | 147 m² | 207 m² | +60 m² +41% | 2023 |
|---|
| 26, Peacock Lane873 m away | 136 m² | 195 m² | +59 m² +43% | 2024 |
|---|
| 50, Withdean Crescent993 m away | 201 m² | 260 m² | +59 m² +29% | 2024 |
|---|
| 27, Eldred Avenue567 m away | 86 m² | 145 m² | +59 m² +69% | 2020 |
|---|
| 32, Redhill Drive995 m away | 134 m² | 192 m² | +58 m² +43% | 2013 |
|---|
| 54, Bramble Rise525 m away | 72 m² | 129 m² | +57 m² +79% | 2021 |
|---|
| 2b, Woodbourne Avenue992 m away | 70 m² | 127 m² | +57 m² +81% | 2020 |
|---|
| 80, Greenfield Crescent999 m away | 58 m² | 114 m² | +56 m² +97% | 2021 |
|---|
| 32, Vale Avenue762 m away | 78 m² | 133 m² | +55 m² +71% | 2023 |
|---|
| 57, Millcroft918 m away | 114 m² | 169 m² | +55 m² +48% | 2021 |
|---|
| 26, Highview Way507 m away | 106 m² | 161 m² | +55 m² +52% | 2015 |
|---|
| 61, Brangwyn Drive51 m away | 145 m² | 199 m² | +54 m² +37% | 2026 |
|---|
| 42, Vale Avenue762 m away | 77 m² | 131 m² | +54 m² +70% | 2026 |
|---|
| 6, Overhill Way417 m away | 116 m² | 170 m² | +54 m² +47% | 2015 |
|---|
| 77, Ridgeside Avenue307 m away | 119 m² | 173 m² | +54 m² +45% | 2013 |
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| 35, Craignair Avenue927 m away | 66 m² | 119 m² | +53 m² +80% | 2020 |
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| 80, Graham Avenue718 m away | 100 m² | 153 m² | +53 m² +53% | 2017 |
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| 73, Eldred Avenue235 m away | 87 m² | 140 m² | +53 m² +61% | 2015 |
|---|
| 14, Hillside Way985 m away | 129 m² | 181 m² | +52 m² +40% | 2024 |
|---|
| 75, Redhill Drive774 m away | 112 m² | 164 m² | +52 m² +46% | 2023 |
|---|
| 50, Brangwyn Drive0 m away | 103 m² | 155 m² | +52 m² +50% | 2016 |
|---|
| Flat 28, Mandalay Court, London Road652 m away | 74 m² | 126 m² | +52 m² +70% | 2014 |
|---|
| 47, Braybon Avenue789 m away | 99 m² | 150 m² | +51 m² +52% | 2022 |
|---|
| 32, Wilmington Way968 m away | 84 m² | 134 m² | +50 m² +60% | 2025 |
|---|
| 26, Stoneleigh Close985 m away | 69 m² | 119 m² | +50 m² +72% | 2022 |
|---|
| 46, Vale Avenue762 m away | 79 m² | 128 m² | +49 m² +62% | 2023 |
|---|
| 5, Downside246 m away | 106 m² | 155 m² | +49 m² +46% | 2022 |
|---|
| 50, Carden Avenue592 m away | 126 m² | 175 m² | +49 m² +39% | 2018 |
|---|
| 48, Millcroft918 m away | 90 m² | 139 m² | +49 m² +54% | 2017 |
|---|
| 8, Colebrook Road713 m away | 215 m² | 263 m² | +48 m² +22% | 2024 |
|---|
| 24, Mill Rise802 m away | 73 m² | 121 m² | +48 m² +66% | 2022 |
|---|
| 63, Brangwyn Drive51 m away | 102 m² | 150 m² | +48 m² +47% | 2020 |
|---|
| 50, Barn Rise376 m away | 48 m² | 95 m² | +47 m² +98% | 2025 |
|---|
| 17, Overhill Way417 m away | 111 m² | 158 m² | +47 m² +42% | 2022 |
|---|
| 46, Redhill Drive774 m away | 112 m² | 159 m² | +47 m² +42% | 2015 |
|---|
| 3, Mayfield Close978 m away | 45 m² | 91 m² | +46 m² +102% | 2025 |
|---|
| 58, Ridgeside Avenue397 m away | 131 m² | 177 m² | +46 m² +35% | 2016 |
|---|
| 13, Colebrook Road713 m away | 177 m² | 221 m² | +44 m² +25% | 2022 |
|---|
| 30, Redhill Drive995 m away | 103 m² | 147 m² | +44 m² +43% | 2018 |
|---|
| 24, Greenfield Crescent999 m away | 54 m² | 97 m² | +43 m² +80% | 2023 |
|---|
| 17, Court Close696 m away | 141 m² | 183 m² | +42 m² +30% | 2016 |
|---|
| 33, Craignair Avenue927 m away | 127 m² | 169 m² | +42 m² +33% | 2016 |
|---|
| 48, Barrhill Avenue864 m away | 127 m² | 169 m² | +42 m² +33% | 2015 |
|---|
| 25, Braybon Avenue789 m away | 99 m² | 141 m² | +42 m² +42% | 2014 |
|---|
| 3, Warmdene Way896 m away | 64 m² | 106 m² | +42 m² +66% | 2011 |
|---|
| 135, Carden Avenue715 m away | 161 m² | 202 m² | +41 m² +25% | 2025 |
|---|
| 48, Surrenden Crescent918 m away | 174 m² | 215 m² | +41 m² +24% | 2022 |
|---|
| 3, Millcroft899 m away | 98 m² | 139 m² | +41 m² +42% | 2016 |
|---|
| 37, Withdean Crescent960 m away | 178 m² | 219 m² | +41 m² +23% | 2016 |
|---|
| 17, Highview Way507 m away | 71 m² | 111 m² | +40 m² +56% | 2025 |
|---|
| 66, Greenfield Crescent999 m away | 58 m² | 98 m² | +40 m² +69% | 2011 |
|---|
| 56, Overhill Drive469 m away | 121 m² | 160 m² | +39 m² +32% | 2026 |
|---|
| 41, Woodbourne Avenue992 m away | 45 m² | 84 m² | +39 m² +87% | 2026 |
|---|
| 5, The Close300 m away | 111 m² | 150 m² | +39 m² +35% | 2023 |
|---|
| 32, Stoneleigh Avenue975 m away | 83 m² | 122 m² | +39 m² +47% | 2023 |
|---|
| 11, Redhill Drive995 m away | 122 m² | 161 m² | +39 m² +32% | 2019 |
|---|
| 149b, Vale Avenue764 m away | 145 m² | 184 m² | +39 m² +27% | 2017 |
|---|
| 20, Downside246 m away | 97 m² | 135 m² | +38 m² +39% | 2020 |
|---|
| 12, Barrhill Avenue864 m away | 66 m² | 104 m² | +38 m² +58% | 2016 |
|---|
| 30, Greenfield Crescent999 m away | 60 m² | 97 m² | +37 m² +62% | 2025 |
|---|
| 8, Highview Road548 m away | 95 m² | 132 m² | +37 m² +39% | 2024 |
|---|
| 32, Overhill Drive479 m away | 136 m² | 173 m² | +37 m² +27% | 2023 |
|---|
| 31, Tongdean Lane849 m away | 183 m² | 220 m² | +37 m² +20% | 2023 |
|---|
| 32, Ridgeside Avenue397 m away | 87 m² | 124 m² | +37 m² +43% | 2019 |
|---|
| 38, Overhill Way417 m away | 95 m² | 132 m² | +37 m² +39% | 2019 |
|---|
| 48, Highbank516 m away | 92 m² | 129 m² | +37 m² +40% | 2017 |
|---|
| 56, Vale Avenue762 m away | 87 m² | 124 m² | +37 m² +43% | 2017 |
|---|
| 50, Bankside550 m away | 127 m² | 164 m² | +37 m² +29% | 2013 |
|---|
| 13, Woodbourne Avenue992 m away | 48 m² | 84 m² | +36 m² +75% | 2023 |
|---|
| 38, Greenfield Crescent999 m away | 59 m² | 95 m² | +36 m² +61% | 2023 |
|---|
| 22, Barn Rise376 m away | 67 m² | 103 m² | +36 m² +54% | 2017 |
|---|
| 11, The Woodlands283 m away | 127 m² | 163 m² | +36 m² +28% | 2016 |
|---|
| 86, Overhill Drive469 m away | 57 m² | 93 m² | +36 m² +63% | 2015 |
|---|
| 20, Bramble Rise525 m away | 72 m² | 108 m² | +36 m² +50% | 2013 |
|---|
| 63, Bramble Rise554 m away | 116 m² | 152 m² | +36 m² +31% | 2013 |
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| 170, Carden Avenue853 m away | 88 m² | 123 m² | +35 m² +40% | 2026 |
|---|
| Killarney, 1, Warmdene Way896 m away | 50 m² | 85 m² | +35 m² +70% | 2026 |
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| 46, Withdean Crescent993 m away | 196 m² | 231 m² | +35 m² +18% | 2025 |
|---|
| 53, Brangwyn Drive51 m away | 105 m² | 140 m² | +35 m² +33% | 2018 |
|---|
| 45, Overhill Way417 m away | 96 m² | 130 m² | +34 m² +35% | 2026 |
|---|
| 17, Redhill Close863 m away | 83 m² | 117 m² | +34 m² +41% | 2023 |
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| 13, Bramble Rise554 m away | 97 m² | 131 m² | +34 m² +35% | 2021 |
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| 28, Brangwyn Drive0 m away | 105 m² | 139 m² | +34 m² +32% | 2016 |
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| 20, Windmill Drive669 m away | 89 m² | 123 m² | +34 m² +38% | 2015 |
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| 40, Fernwood Rise335 m away | 80 m² | 114 m² | +34 m² +43% | 2014 |
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| 51, Greenfield Crescent995 m away | 93 m² | 126 m² | +33 m² +35% | 2024 |
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| 1, Old Court Close827 m away | 92 m² | 125 m² | +33 m² +36% | 2023 |
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| 25, Woodbourne Avenue992 m away | 57 m² | 90 m² | +33 m² +58% | 2023 |
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| 44, Graham Avenue718 m away | 110 m² | 143 m² | +33 m² +30% | 2022 |
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| 14, Craignair Avenue958 m away | 96 m² | 129 m² | +33 m² +34% | 2022 |
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| 42, Graham Avenue718 m away | 107 m² | 140 m² | +33 m² +31% | 2021 |
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| 15, Brangwyn Way112 m away | 167 m² | 200 m² | +33 m² +20% | 2018 |
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| 19, Vale Avenue711 m away | 82 m² | 115 m² | +33 m² +40% | 2017 |
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| 27, Brangwyn Drive51 m away | 137 m² | 170 m² | +33 m² +24% | 2015 |
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| 12, Valley Drive823 m away | 112 m² | 144 m² | +32 m² +29% | 2016 |
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| 24, Millcroft875 m away | 111 m² | 142 m² | +31 m² +28% | 2026 |
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| 10, Highbank516 m away | 90 m² | 120 m² | +30 m² +33% | 2026 |
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| 56, Highbank516 m away | 95 m² | 125 m² | +30 m² +32% | 2025 |
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| 49, Greenfield Crescent995 m away | 80 m² | 109 m² | +29 m² +36% | 2026 |
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| 2, Bramble Rise525 m away | 85 m² | 114 m² | +29 m² +34% | 2022 |
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| 1, Colebrook Cottages, Colebrook Road713 m away | 131 m² | 160 m² | +29 m² +22% | 2021 |
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| 33, Graham Avenue680 m away | 89 m² | 118 m² | +29 m² +33% | 2020 |
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| 72, Mill Rise694 m away | 92 m² | 121 m² | +29 m² +32% | 2020 |
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| 30, Wilmington Way968 m away | 81 m² | 110 m² | +29 m² +36% | 2018 |
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| 14, Woodbourne Avenue992 m away | 58 m² | 86 m² | +28 m² +48% | 2025 |
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| 57, Eldred Avenue235 m away | 65 m² | 93 m² | +28 m² +43% | 2024 |
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| 53, Dene Vale460 m away | 101 m² | 129 m² | +28 m² +28% | 2023 |
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| 91, Peacock Lane873 m away | 174 m² | 202 m² | +28 m² +16% | 2023 |
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| 10, Craignair Avenue958 m away | 86 m² | 114 m² | +28 m² +33% | 2023 |
|---|
| 84, Overhill Drive469 m away | 101 m² | 129 m² | +28 m² +28% | 2019 |
|---|
| 43, Graham Avenue680 m away | 87 m² | 115 m² | +28 m² +32% | 2015 |
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| 27, Old London Road312 m away | 39 m² | 66 m² | +27 m² +69% | 2023 |
|---|
| 127, Windmill Drive387 m away | 96 m² | 123 m² | +27 m² +28% | 2015 |
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| 34, Ladies Mile Road543 m away | 134 m² | 161 m² | +27 m² +20% | 2015 |
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| 39, Copse Hill318 m away | 80 m² | 106 m² | +26 m² +33% | 2025 |
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| 156, Carden Avenue715 m away | 89 m² | 115 m² | +26 m² +29% | 2025 |
|---|
| 12, Dale Avenue685 m away | 78 m² | 104 m² | +26 m² +33% | 2021 |
|---|
| 18, Warmdene Road772 m away | 98 m² | 124 m² | +26 m² +27% | 2021 |
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| 32, Millcroft875 m away | 72 m² | 98 m² | +26 m² +36% | 2014 |
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| 19, South Woodlands414 m away | 139 m² | 164 m² | +25 m² +18% | 2025 |
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| 48, Bramble Rise525 m away | 119 m² | 144 m² | +25 m² +21% | 2023 |
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| 66, Highbank516 m away | 130 m² | 155 m² | +25 m² +19% | 2022 |
|---|
| 54, Highbank516 m away | 90 m² | 115 m² | +25 m² +28% | 2021 |
|---|
| Flat 4, Ashburnham House, 24 - 32, Old London Road293 m away | 56 m² | 81 m² | +25 m² +45% | 2020 |
|---|
| 79, Greenfield Crescent995 m away | 68 m² | 93 m² | +25 m² +37% | 2018 |
|---|
| 68, Windmill Drive435 m away | 148 m² | 173 m² | +25 m² +17% | 2015 |
|---|
| 43, Greenfield Crescent995 m away | 45 m² | 70 m² | +25 m² +56% | 2013 |
|---|
| 10, Hillcrest708 m away | 116 m² | 140 m² | +24 m² +21% | 2025 |
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| 81, Vale Avenue711 m away | 92 m² | 116 m² | +24 m² +26% | 2024 |
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| 3, Barrhill Avenue866 m away | 80 m² | 104 m² | +24 m² +30% | 2023 |
|---|
| 26, Brangwyn Crescent246 m away | 103 m² | 127 m² | +24 m² +23% | 2022 |
|---|
| Flat 105, Windsor Court, Tongdean Lane851 m away | 31 m² | 54 m² | +23 m² +74% | 2022 |
|---|
| 17, Woodland Way877 m away | 131 m² | 154 m² | +23 m² +18% | 2022 |
|---|
| 28, Highview Avenue North613 m away | 119 m² | 142 m² | +23 m² +19% | 2021 |
|---|
| 46, Greenfield Crescent999 m away | 55 m² | 78 m² | +23 m² +42% | 2016 |
|---|
| 93, Redhill Drive774 m away | 79 m² | 101 m² | +22 m² +28% | 2024 |
|---|
| 11, The Village Barn772 m away | 122 m² | 144 m² | +22 m² +18% | 2019 |
|---|
| 32, Mayfield Crescent939 m away | 92 m² | 114 m² | +22 m² +24% | 2011 |
|---|
| 31, Braybon Avenue789 m away | 88 m² | 109 m² | +21 m² +24% | 2026 |
|---|
| 1, Overhill Gardens432 m away | 112 m² | 133 m² | +21 m² +19% | 2022 |
|---|
| 20, Fernwood Rise335 m away | 87 m² | 108 m² | +21 m² +24% | 2016 |
|---|
| 40, Greenfield Crescent999 m away | 83 m² | 104 m² | +21 m² +25% | 2016 |
|---|
| 57, Vale Avenue711 m away | 80 m² | 101 m² | +21 m² +26% | 2011 |
|---|
| 27, Valley Drive823 m away | 123 m² | 144 m² | +21 m² +17% | 2011 |
|---|
| 14, Greenfield Crescent999 m away | 88 m² | 108 m² | +20 m² +23% | 2023 |
|---|
| 82, Vale Avenue762 m away | 80 m² | 100 m² | +20 m² +25% | 2021 |
|---|
| 22, Overhill Gardens432 m away | 78 m² | 98 m² | +20 m² +26% | 2018 |
|---|
| Flat 3, Mandalay Court, London Road652 m away | 74 m² | 94 m² | +20 m² +27% | 2016 |
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| 36, Craignair Avenue958 m away | 80 m² | 99 m² | +19 m² +24% | 2026 |
|---|
| 25, Woodland Way877 m away | 95 m² | 114 m² | +19 m² +20% | 2023 |
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| 6, Stoneleigh Close985 m away | 102 m² | 121 m² | +19 m² +19% | 2023 |
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| 4, Upper Winfield Avenue552 m away | 44 m² | 63 m² | +19 m² +43% | 2021 |
|---|
| 53, Westdene Drive829 m away | 124 m² | 143 m² | +19 m² +15% | 2020 |
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| 7, Barrhill Avenue866 m away | 89 m² | 108 m² | +19 m² +21% | 2014 |
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