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 BN3 1FG
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 |
|---|---|---|---|---|
| 111, Holland Road318 m away | 180 m² | 379 m² | +199 m² +111% | 2018 |
| 3, Windlesham Road665 m away | 181 m² | 326 m² | +145 m² +80% | 2016 |
| 5, Selborne Road432 m away | 134 m² | 271 m² | +137 m² +102% | 2020 |
| 71, Lyndhurst Road813 m away | 197 m² | 315 m² | +118 m² +60% | 2015 |
| 72, Cromwell Road702 m away | 83 m² | 199 m² | +116 m² +140% | 2022 |
| 46, Sillwood Road635 m away | 78 m² | 193 m² | +115 m² +147% | 2012 |
| 9, Clifton Hill844 m away | 96 m² | 209 m² | +113 m² +118% | 2016 |
| Flat 30, Victoria Court, 16, Grand Avenue671 m away | 124 m² | 231 m² | +107 m² +86% | 2026 |
| 18, Denmark Villas986 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.
| 179 m² |
| 285 m² |
| +106 m² +59% |
| 2020 |
| 22, Brunswick Road255 m away | 168 m² | 273 m² | +105 m² +63% | 2011 |
|---|
| Flat 1, 10 - 11, Palmeira Square200 m away | 148 m² | 248 m² | +100 m² +68% | 2021 |
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| 30, Cambridge Road224 m away | 274 m² | 373 m² | +99 m² +36% | 2021 |
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| 54, Davigdor Road668 m away | 146 m² | 242 m² | +96 m² +66% | 2024 |
|---|
| 16, Kings Gardens831 m away | 102 m² | 194 m² | +92 m² +90% | 2011 |
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| 10, Montpelier Terrace623 m away | 207 m² | 296 m² | +89 m² +43% | 2012 |
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| 36, Medina Villas936 m away | 422 m² | 510 m² | +88 m² +21% | 2022 |
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| 13, Osmond Gardens713 m away | 70 m² | 157 m² | +87 m² +124% | 2010 |
|---|
| 9, Copthorne Court, 44, The Drive690 m away | 86 m² | 170 m² | +84 m² +98% | 2023 |
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| Flat 7, Palmeria House, 46, Palmeira Avenue480 m away | 74 m² | 149 m² | +75 m² +101% | 2017 |
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| Basement Vault, 8, Kings Gardens797 m away | 72 m² | 146 m² | +74 m² +103% | 2023 |
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| 4, Lorna Road745 m away | 80 m² | 150 m² | +70 m² +88% | 2025 |
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| 36, York Avenue433 m away | 272 m² | 342 m² | +70 m² +26% | 2021 |
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| 67, Lansdowne Street169 m away | 55 m² | 125 m² | +70 m² +127% | 2009 |
|---|
| 93, Addison Road820 m away | 110 m² | 179 m² | +69 m² +63% | 2023 |
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| Flat 30, 4, Grand Avenue562 m away | 63 m² | 132 m² | +69 m² +110% | 2022 |
|---|
| 26, Osmond Road713 m away | 257 m² | 325 m² | +68 m² +26% | 2013 |
|---|
| 128, Holland Road587 m away | 101 m² | 166 m² | +65 m² +64% | 2019 |
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| Flat 2, Palmeira Plaza, 63, Holland Road116 m away | 73 m² | 137 m² | +64 m² +88% | 2013 |
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| Flat 2, Amberley Court, 22, Second Avenue497 m away | 78 m² | 140 m² | +62 m² +79% | 2016 |
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| 50, Colbourne Road735 m away | 82 m² | 142 m² | +60 m² +73% | 2026 |
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| 16, Bedford Place463 m away | 45 m² | 105 m² | +60 m² +133% | 2011 |
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| 12, Lorna Road745 m away | 60 m² | 120 m² | +60 m² +100% | 2009 |
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| 44, Norfolk Square441 m away | 61 m² | 121 m² | +60 m² +98% | 2008 |
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| 27, Cambridge Grove908 m away | 105 m² | 164 m² | +59 m² +56% | 2023 |
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| Flat 2, 15, Kings Gardens831 m away | 68 m² | 127 m² | +59 m² +87% | 2019 |
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| 97, Holland Road318 m away | 98 m² | 156 m² | +58 m² +59% | 2025 |
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| 8, Farm Road90 m away | 44 m² | 102 m² | +58 m² +132% | 2012 |
|---|
| 18, Hova Villas906 m away | 49 m² | 106 m² | +57 m² +116% | 2014 |
|---|
| Flat 2, 10, Lansdowne Road259 m away | 188 m² | 245 m² | +57 m² +30% | 2013 |
|---|
| 32, Hova Villas906 m away | 126 m² | 182 m² | +56 m² +44% | 2023 |
|---|
| 2, Norfolk Road393 m away | 56 m² | 112 m² | +56 m² +100% | 2015 |
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| 31, Albany Villas873 m away | 59 m² | 115 m² | +56 m² +95% | 2014 |
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| Flat 5, Royal Court, 8, Kings Gardens797 m away | 133 m² | 189 m² | +56 m² +42% | 2011 |
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| Flat 3, 24, First Avenue413 m away | 47 m² | 102 m² | +55 m² +117% | 2021 |
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| 10, Salisbury Road367 m away | 38 m² | 93 m² | +55 m² +145% | 2017 |
|---|
| 34, Church Road542 m away | 39 m² | 94 m² | +55 m² +141% | 2011 |
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| 53, Ventnor Villas929 m away | 48 m² | 103 m² | +55 m² +115% | 2009 |
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| Flat 4, 50, Cambridge Road224 m away | 67 m² | 121 m² | +54 m² +81% | 2015 |
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| 48, Sillwood Street461 m away | 43 m² | 96 m² | +53 m² +123% | 2015 |
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| 2, Hova Villas906 m away | 53 m² | 106 m² | +53 m² +100% | 2015 |
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| Flat 34, Ashdown, Eaton Road520 m away | 100 m² | 153 m² | +53 m² +53% | 2011 |
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| Ground Floor West, 10, Grand Avenue546 m away | 83 m² | 135 m² | +52 m² +63% | 2024 |
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| 21, Powis Square805 m away | 50 m² | 102 m² | +52 m² +104% | 2021 |
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| 13, Clifton Terrace909 m away | 64 m² | 116 m² | +52 m² +81% | 2020 |
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| 44, Victoria Street771 m away | 94 m² | 146 m² | +52 m² +55% | 2014 |
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| 20, Denmark Villas986 m away | 66 m² | 118 m² | +52 m² +79% | 2011 |
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| 42d, Norton Road820 m away | 117 m² | 165 m² | +48 m² +41% | 2022 |
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| 5, Powis Road776 m away | 34 m² | 82 m² | +48 m² +141% | 2020 |
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| Flat 4, 44, Brunswick Square178 m away | 48 m² | 96 m² | +48 m² +100% | 2019 |
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| 13, Western Street412 m away | 36 m² | 84 m² | +48 m² +133% | 2017 |
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| 3, Clarence Square937 m away | 54 m² | 102 m² | +48 m² +89% | 2009 |
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| 27, Colbourne Road760 m away | 122 m² | 169 m² | +47 m² +39% | 2025 |
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| Flat 26, Grand Avenue Mansions, Grand Avenue632 m away | 65 m² | 112 m² | +47 m² +72% | 2019 |
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| 27, Bigwood Avenue982 m away | 115 m² | 162 m² | +47 m² +41% | 2016 |
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| Flat 1, 15, Fourth Avenue797 m away | 127 m² | 174 m² | +47 m² +37% | 2014 |
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| 4, Highdown Road983 m away | 79 m² | 125 m² | +46 m² +58% | 2022 |
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| 39, Osmond Road775 m away | 176 m² | 222 m² | +46 m² +26% | 2021 |
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| 12, Montpelier Road520 m away | 76 m² | 122 m² | +46 m² +61% | 2019 |
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| 10, Wolstonbury Road983 m away | 126 m² | 172 m² | +46 m² +37% | 2013 |
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| 78, Lyndhurst Road785 m away | 65 m² | 111 m² | +46 m² +71% | 2012 |
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| Flat 7, 3, Third Avenue716 m away | 51 m² | 96 m² | +45 m² +88% | 2020 |
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| 30b, Third Avenue752 m away | 85 m² | 130 m² | +45 m² +53% | 2017 |
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| 20, Montpelier Road520 m away | 50 m² | 95 m² | +45 m² +90% | 2016 |
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| 16, Abbotts, 129, Kings Road874 m away | 226 m² | 271 m² | +45 m² +20% | 2015 |
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| Ground Floor Flat, 14, Farm Road90 m away | 50 m² | 95 m² | +45 m² +90% | 2008 |
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| 4, Davigdor Road807 m away | 112 m² | 156 m² | +44 m² +39% | 2024 |
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| 115, Addison Road820 m away | 118 m² | 162 m² | +44 m² +37% | 2022 |
|---|
| 22b, Dyke Road1000 m away | 42 m² | 86 m² | +44 m² +105% | 2018 |
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| 35, Tisbury Road772 m away | 63 m² | 107 m² | +44 m² +70% | 2011 |
|---|
| 1, Brunswick Street West192 m away | 93 m² | 136 m² | +43 m² +46% | 2020 |
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| Flat 1, 8, Somerhill Road267 m away | 45 m² | 88 m² | +43 m² +96% | 2020 |
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| 20, Medina Villas974 m away | 62 m² | 105 m² | +43 m² +69% | 2019 |
|---|
| Flat 8, 24, Second Avenue497 m away | 70 m² | 112 m² | +42 m² +60% | 2022 |
|---|
| Flat 4, 6, Brunswick Square305 m away | 36 m² | 78 m² | +42 m² +117% | 2018 |
|---|
| 5b, Cambridge Grove908 m away | 83 m² | 125 m² | +42 m² +51% | 2018 |
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| 2, Norfolk Square382 m away | 52 m² | 94 m² | +42 m² +81% | 2016 |
|---|
| 41, Osmond Road775 m away | 165 m² | 207 m² | +42 m² +25% | 2010 |
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| 35a, Colbourne Road760 m away | 59 m² | 100 m² | +41 m² +69% | 2026 |
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| 23, Lansdowne Road231 m away | 85 m² | 126 m² | +41 m² +48% | 2023 |
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| 12a, Granville Road887 m away | 74 m² | 115 m² | +41 m² +55% | 2022 |
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| 1, Powis Road776 m away | 92 m² | 133 m² | +41 m² +45% | 2017 |
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| Flat 5, 62, The Drive754 m away | 65 m² | 106 m² | +41 m² +63% | 2013 |
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| Flat 4, 10, Montpelier Road520 m away | 30 m² | 70 m² | +40 m² +133% | 2026 |
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| Flat 3, 22, Denmark Terrace708 m away | 28 m² | 68 m² | +40 m² +143% | 2024 |
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| 4, Cornwall Court, Wilbury Avenue942 m away | 33 m² | 73 m² | +40 m² +121% | 2023 |
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| 107, Addison Road820 m away | 45 m² | 85 m² | +40 m² +89% | 2018 |
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| Flat 26, Veric, 16 - 18, Eaton Gardens924 m away | 41 m² | 81 m² | +40 m² +98% | 2015 |
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| 92, Lyndhurst Road813 m away | 69 m² | 109 m² | +40 m² +58% | 2014 |
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| Flat 1, 40, Medina Villas974 m away | 35 m² | 75 m² | +40 m² +114% | 2010 |
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| 77, Holland Road153 m away | 73 m² | 112 m² | +39 m² +53% | 2026 |
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| 14a, Cross Street324 m away | 75 m² | 114 m² | +39 m² +52% | 2023 |
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| 29a, Norfolk Road419 m away | 45 m² | 84 m² | +39 m² +87% | 2019 |
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| 22, Rochester Close240 m away | 43 m² | 82 m² | +39 m² +91% | 2018 |
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| 7, Western Road299 m away | 34 m² | 73 m² | +39 m² +115% | 2010 |
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| 19, Stone Street763 m away | 46 m² | 84 m² | +38 m² +83% | 2025 |
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| 63, Brunswick Street West192 m away | 98 m² | 136 m² | +38 m² +39% | 2024 |
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| Flat 8, 1, Adelaide Crescent318 m away | 40 m² | 78 m² | +38 m² +95% | 2023 |
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| Flat 3, 51, Montpelier Road530 m away | 43 m² | 81 m² | +38 m² +88% | 2023 |
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| 10, Park Royal, 66, Montpelier Road496 m away | 79 m² | 117 m² | +38 m² +48% | 2022 |
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| 94, Lyndhurst Road813 m away | 143 m² | 181 m² | +38 m² +27% | 2019 |
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| 4, Clarence Square937 m away | 53 m² | 91 m² | +38 m² +72% | 2017 |
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| 3, Kings Mews682 m away | 78 m² | 116 m² | +38 m² +49% | 2013 |
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| 35, Lower Market Street297 m away | 116 m² | 154 m² | +38 m² +33% | 2010 |
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| 40, Regency Square834 m away | 39 m² | 77 m² | +38 m² +97% | 2010 |
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| Flat 4, 10, Eaton Road834 m away | 60 m² | 97 m² | +37 m² +62% | 2024 |
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| Flat 2, Aynsley Court, Wilbury Avenue988 m away | 52 m² | 89 m² | +37 m² +71% | 2024 |
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| 19, Norton Road834 m away | 61 m² | 98 m² | +37 m² +61% | 2016 |
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| 18, Western Street412 m away | 94 m² | 131 m² | +37 m² +39% | 2013 |
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| 36, Vernon Terrace926 m away | 51 m² | 88 m² | +37 m² +73% | 2011 |
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| 49, Brunswick Place153 m away | 85 m² | 122 m² | +37 m² +44% | 2009 |
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| 80, Church Road863 m away | 43 m² | 79 m² | +36 m² +84% | 2026 |
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| 15, Wolstonbury Road983 m away | 122 m² | 158 m² | +36 m² +30% | 2020 |
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| 33, Lower Market Street297 m away | 42 m² | 78 m² | +36 m² +86% | 2018 |
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| Flat 4, 16, First Avenue413 m away | 50 m² | 86 m² | +36 m² +72% | 2015 |
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| 16, Victoria Street751 m away | 84 m² | 120 m² | +36 m² +43% | 2012 |
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| Flat 1, 21, Third Avenue716 m away | 100 m² | 135 m² | +35 m² +35% | 2024 |
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| Flat 2, 49, Brunswick Square249 m away | 54 m² | 89 m² | +35 m² +65% | 2023 |
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| 2d, Lansdowne Place180 m away | 149 m² | 184 m² | +35 m² +23% | 2020 |
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| Flat 5, 55, The Drive779 m away | 56 m² | 91 m² | +35 m² +63% | 2019 |
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| 32, Cissbury Road940 m away | 180 m² | 215 m² | +35 m² +19% | 2017 |
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| 56, Cambridge Road224 m away | 33 m² | 68 m² | +35 m² +106% | 2016 |
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| 3, Bedford Place463 m away | 56 m² | 91 m² | +35 m² +63% | 2016 |
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| 7, Melville Road954 m away | 48 m² | 83 m² | +35 m² +73% | 2011 |
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| 3, St Michaels Place731 m away | 41 m² | 76 m² | +35 m² +85% | 2009 |
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| 67, Wilbury Crescent957 m away | 139 m² | 173 m² | +34 m² +24% | 2026 |
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| 10, Rochester Gardens225 m away | 113 m² | 147 m² | +34 m² +30% | 2025 |
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| Flat 5, 44, Brunswick Square178 m away | 91 m² | 125 m² | +34 m² +37% | 2024 |
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| 102, Addison Road788 m away | 111 m² | 145 m² | +34 m² +31% | 2024 |
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| 1, The Bungalows286 m away | 221 m² | 255 m² | +34 m² +15% | 2023 |
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| Flat 3, 35, First Avenue430 m away | 36 m² | 70 m² | +34 m² +94% | 2019 |
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| 7, Western Terrace577 m away | 153 m² | 187 m² | +34 m² +22% | 2019 |
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| 7, Castle Street774 m away | 62 m² | 96 m² | +34 m² +55% | 2015 |
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| 67, Lyndhurst Road813 m away | 136 m² | 170 m² | +34 m² +25% | 2014 |
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| 12, Abbotts, 129, Kings Road874 m away | 112 m² | 146 m² | +34 m² +30% | 2013 |
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| 14, Wolstonbury Road983 m away | 146 m² | 179 m² | +33 m² +23% | 2024 |
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| Flat 2, Gainsborough House, 4 - 6, Eaton Gardens840 m away | 89 m² | 122 m² | +33 m² +37% | 2023 |
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| 34, Ferndale Road877 m away | 146 m² | 179 m² | +33 m² +23% | 2023 |
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| 79, Addison Road820 m away | 141 m² | 174 m² | +33 m² +23% | 2018 |
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| 24, Chapel Mews402 m away | 63 m² | 96 m² | +33 m² +52% | 2016 |
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| 83, Church Road526 m away | 30 m² | 63 m² | +33 m² +110% | 2016 |
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| 14, Holland Mews139 m away | 105 m² | 138 m² | +33 m² +31% | 2014 |
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| 16, Wilbury Villas975 m away | 29 m² | 62 m² | +33 m² +114% | 2009 |
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| 5, Denmark Villas951 m away | 43 m² | 75 m² | +32 m² +74% | 2026 |
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| 84, Addison Road788 m away | 116 m² | 148 m² | +32 m² +28% | 2024 |
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| 23, Glendale Road881 m away | 132 m² | 164 m² | +32 m² +24% | 2022 |
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| 21, Holland Mews139 m away | 102 m² | 134 m² | +32 m² +31% | 2020 |
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| Flat 6, 29, Brunswick Square196 m away | 46 m² | 78 m² | +32 m² +70% | 2020 |
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| 52, Brunswick Place184 m away | 43 m² | 75 m² | +32 m² +74% | 2018 |
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| 40, Lansdowne Street146 m away | 37 m² | 69 m² | +32 m² +86% | 2016 |
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| Flat 3, The Red House, 21, Lansdowne Road231 m away | 138 m² | 170 m² | +32 m² +23% | 2016 |
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| 88, Lansdowne Place75 m away | 32 m² | 64 m² | +32 m² +100% | 2015 |
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| 2, Abbotts, 129, Kings Road874 m away | 96 m² | 128 m² | +32 m² +33% | 2013 |
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| Flat 1, 35, Adelaide Crescent414 m away | 123 m² | 154 m² | +31 m² +25% | 2026 |
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| Flat 6, 62, The Drive754 m away | 92 m² | 123 m² | +31 m² +34% | 2026 |
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| 33, Fourth Avenue779 m away | 47 m² | 78 m² | +31 m² +66% | 2020 |
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| 34, Waterloo Street273 m away | 40 m² | 71 m² | +31 m² +78% | 2016 |
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| 63, Hova Villas885 m away | 27 m² | 58 m² | +31 m² +115% | 2015 |
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| 21, Brunswick Place100 m away | 45 m² | 76 m² | +31 m² +69% | 2010 |
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| 2, Davigdor Road807 m away | 67 m² | 97 m² | +30 m² +45% | 2025 |
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| Flat 4, 53, The Drive779 m away | 99 m² | 129 m² | +30 m² +30% | 2023 |
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| 69, Brunswick Place153 m away | 48 m² | 78 m² | +30 m² +63% | 2010 |
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| 6, Regency Square750 m away | 54 m² | 83 m² | +29 m² +54% | 2025 |
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| Flat 42, Gwydyr Mansions, Holland Road164 m away | 66 m² | 95 m² | +29 m² +44% | 2023 |
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| Flat 4, 2, Selborne Road406 m away | 75 m² | 104 m² | +29 m² +39% | 2018 |
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| 63, Wilbury Crescent957 m away | 173 m² | 202 m² | +29 m² +17% | 2017 |
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| Flat 2, 57, The Drive779 m away | 106 m² | 135 m² | +29 m² +27% | 2014 |
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| 92, Cromwell Road702 m away | 67 m² | 96 m² | +29 m² +43% | 2011 |
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| 48, Upper North Street825 m away | 94 m² | 122 m² | +28 m² +30% | 2026 |
|---|
| 1, Montpelier Road520 m away | 67 m² | 95 m² | +28 m² +42% | 2025 |
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| Flat 8, 5, Second Avenue515 m away | 36 m² | 64 m² | +28 m² +78% | 2024 |
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| 20a, Sussex Heights908 m away | 89 m² | 117 m² | +28 m² +31% | 2024 |
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| Flat 1, 58, The Drive711 m away | 120 m² | 148 m² | +28 m² +23% | 2023 |
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| Flat 5, 26, Cromwell Road864 m away | 42 m² | 70 m² | +28 m² +67% | 2022 |
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| Flat 3, 19, Salisbury Road367 m away | 134 m² | 162 m² | +28 m² +21% | 2021 |
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| Flat 5, 40, Brunswick Square178 m away | 49 m² | 77 m² | +28 m² +57% | 2019 |
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| Flat 1, 3, Palmeira Avenue289 m away | 70 m² | 98 m² | +28 m² +40% | 2019 |
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| Flat 36, Sussex Court, Eaton Road458 m away | 56 m² | 84 m² | +28 m² +50% | 2014 |
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| 24, Castle Street774 m away | 46 m² | 74 m² | +28 m² +61% | 2012 |
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| 13, Lower Market Street297 m away | 37 m² | 65 m² | +28 m² +76% | 2011 |
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| 30, Holland Road202 m away | 57 m² | 85 m² | +28 m² +49% | 2010 |
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| 30, Norton Road796 m away | 28 m² | 56 m² | +28 m² +100% | 2009 |
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| 25, Brunswick Road255 m away | 56 m² | 83 m² | +27 m² +48% | 2020 |
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| 47, Sillwood Street461 m away | 112 m² | 139 m² | +27 m² +24% | 2020 |
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| 21, Russell Square901 m away | 30 m² | 57 m² | +27 m² +90% | 2011 |
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| Flat 5, 2, Brunswick Square305 m away | 68 m² | 94 m² | +26 m² +38% | 2024 |
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| 72, Furze Croft, Furze Hill350 m away | 110 m² | 136 m² | +26 m² +24% | 2024 |
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| 20, Church Road542 m away | 38 m² | 64 m² | +26 m² +68% | 2018 |
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| 25, Clarence Square937 m away | 43 m² | 69 m² | +26 m² +60% | 2018 |
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| 34, Temple Street494 m away | 146 m² | 172 m² | +26 m² +18% | 2015 |
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| 8, Crown Street833 m away | 56 m² | 82 m² | +26 m² +46% | 2015 |
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