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 3AJ
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 Road362 m away | 180 m² | 379 m² | +199 m² +111% | 2018 |
| Flat 1, 99, The Drive905 m away | 117 m² | 269 m² | +152 m² +130% | 2024 |
| 3, Windlesham Road984 m away | 181 m² | 326 m² | +145 m² +80% | 2016 |
| 5, Selborne Road0 m away | 134 m² | 271 m² | +137 m² +102% | 2020 |
| 71, Lyndhurst Road764 m away | 197 m² | 315 m² | +118 m² +60% | 2015 |
| 72, Cromwell Road502 m away | 83 m² | 199 m² | +116 m² +140% | 2022 |
| Flat 30, Victoria Court, 16, Grand Avenue373 m away | 124 m² | 231 m² | +107 m² +86% | 2026 |
| 18, Denmark Villas587 m away | 179 m² | 285 m² | +106 m² +59% | 2020 |
| 22, Brunswick Road670 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.
| 168 m² |
| 273 m² |
| +105 m² +63% |
| 2011 |
| Flat 1, 10 - 11, Palmeira Square292 m away | 148 m² | 248 m² | +100 m² +68% | 2021 |
|---|
| 30, Cambridge Road635 m away | 274 m² | 373 m² | +99 m² +36% | 2021 |
|---|
| 54, Davigdor Road876 m away | 146 m² | 242 m² | +96 m² +66% | 2024 |
|---|
| 106, The Drive941 m away | 389 m² | 481 m² | +92 m² +24% | 2024 |
|---|
| 22, Wilbury Avenue859 m away | 165 m² | 257 m² | +92 m² +56% | 2019 |
|---|
| 16, Kings Gardens546 m away | 102 m² | 194 m² | +92 m² +90% | 2011 |
|---|
| 36, Medina Villas564 m away | 422 m² | 510 m² | +88 m² +21% | 2022 |
|---|
| 13, Osmond Gardens989 m away | 70 m² | 157 m² | +87 m² +124% | 2010 |
|---|
| 9, Copthorne Court, 44, The Drive260 m away | 86 m² | 170 m² | +84 m² +98% | 2023 |
|---|
| 23, Wilbury Gardens973 m away | 247 m² | 326 m² | +79 m² +32% | 2016 |
|---|
| 44, Old Shoreham Road954 m away | 137 m² | 215 m² | +78 m² +57% | 2021 |
|---|
| 31, Clarendon Villas865 m away | 74 m² | 152 m² | +78 m² +105% | 2012 |
|---|
| Flat 7, Palmeria House, 46, Palmeira Avenue390 m away | 74 m² | 149 m² | +75 m² +101% | 2017 |
|---|
| Basement Vault, 8, Kings Gardens520 m away | 72 m² | 146 m² | +74 m² +103% | 2023 |
|---|
| 10, The Upper Drive794 m away | 239 m² | 311 m² | +72 m² +30% | 2016 |
|---|
| Flat 31, Grasshoppers, 87, The Drive863 m away | 62 m² | 134 m² | +72 m² +116% | 2014 |
|---|
| 4, Lorna Road603 m away | 80 m² | 150 m² | +70 m² +88% | 2025 |
|---|
| 36, York Avenue793 m away | 272 m² | 342 m² | +70 m² +26% | 2021 |
|---|
| 67, Lansdowne Street340 m away | 55 m² | 125 m² | +70 m² +127% | 2009 |
|---|
| 93, Addison Road981 m away | 110 m² | 179 m² | +69 m² +63% | 2023 |
|---|
| Flat 30, 4, Grand Avenue293 m away | 63 m² | 132 m² | +69 m² +110% | 2022 |
|---|
| 12, The Upper Drive794 m away | 167 m² | 235 m² | +68 m² +41% | 2021 |
|---|
| 26, Osmond Road989 m away | 257 m² | 325 m² | +68 m² +26% | 2013 |
|---|
| 128, Holland Road532 m away | 101 m² | 166 m² | +65 m² +64% | 2019 |
|---|
| Flat 2, Palmeira Plaza, 63, Holland Road317 m away | 73 m² | 137 m² | +64 m² +88% | 2013 |
|---|
| 206, Church Road846 m away | 51 m² | 114 m² | +63 m² +124% | 2016 |
|---|
| Flat 2, Amberley Court, 22, Second Avenue325 m away | 78 m² | 140 m² | +62 m² +79% | 2016 |
|---|
| 29, Denmark Villas641 m away | 186 m² | 247 m² | +61 m² +33% | 2026 |
|---|
| 16, Brooker Street865 m away | 64 m² | 125 m² | +61 m² +95% | 2021 |
|---|
| 50, Colbourne Road914 m away | 82 m² | 142 m² | +60 m² +73% | 2026 |
|---|
| 16, Bedford Place896 m away | 45 m² | 105 m² | +60 m² +133% | 2011 |
|---|
| 12, Lorna Road603 m away | 60 m² | 120 m² | +60 m² +100% | 2009 |
|---|
| 44, Norfolk Square873 m away | 61 m² | 121 m² | +60 m² +98% | 2008 |
|---|
| 27, Cambridge Grove624 m away | 105 m² | 164 m² | +59 m² +56% | 2023 |
|---|
| Flat 2, 15, Kings Gardens546 m away | 68 m² | 127 m² | +59 m² +87% | 2019 |
|---|
| 97, Holland Road362 m away | 98 m² | 156 m² | +58 m² +59% | 2025 |
|---|
| 8, Farm Road470 m away | 44 m² | 102 m² | +58 m² +132% | 2012 |
|---|
| 214, Church Road846 m away | 54 m² | 111 m² | +57 m² +106% | 2019 |
|---|
| 18, Hova Villas481 m away | 49 m² | 106 m² | +57 m² +116% | 2014 |
|---|
| 35, Seafield Road662 m away | 170 m² | 227 m² | +57 m² +34% | 2014 |
|---|
| Flat 2, 10, Lansdowne Road250 m away | 188 m² | 245 m² | +57 m² +30% | 2013 |
|---|
| 32, Hova Villas481 m away | 126 m² | 182 m² | +56 m² +44% | 2023 |
|---|
| 2, Norfolk Road809 m away | 56 m² | 112 m² | +56 m² +100% | 2015 |
|---|
| 31, Albany Villas498 m away | 59 m² | 115 m² | +56 m² +95% | 2014 |
|---|
| Flat 5, Royal Court, 8, Kings Gardens520 m away | 133 m² | 189 m² | +56 m² +42% | 2011 |
|---|
| Flat 3, 24, First Avenue315 m away | 47 m² | 102 m² | +55 m² +117% | 2021 |
|---|
| 10, Salisbury Road105 m away | 38 m² | 93 m² | +55 m² +145% | 2017 |
|---|
| 34, Church Road176 m away | 39 m² | 94 m² | +55 m² +141% | 2011 |
|---|
| 8, Osborne Villas729 m away | 98 m² | 153 m² | +55 m² +56% | 2011 |
|---|
| 53, Ventnor Villas504 m away | 48 m² | 103 m² | +55 m² +115% | 2009 |
|---|
| 1, Goldstone Road740 m away | 50 m² | 104 m² | +54 m² +108% | 2023 |
|---|
| Flat 4, 50, Cambridge Road635 m away | 67 m² | 121 m² | +54 m² +81% | 2015 |
|---|
| 21, Vallance Road829 m away | 68 m² | 121 m² | +53 m² +78% | 2021 |
|---|
| 2, Hova Villas481 m away | 53 m² | 106 m² | +53 m² +100% | 2015 |
|---|
| 48, Sillwood Street892 m away | 43 m² | 96 m² | +53 m² +123% | 2015 |
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| 91, St Aubyns698 m away | 75 m² | 128 m² | +53 m² +71% | 2013 |
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| Flat 34, Ashdown, Eaton Road252 m away | 100 m² | 153 m² | +53 m² +53% | 2011 |
|---|
| Ground Floor West, 10, Grand Avenue207 m away | 83 m² | 135 m² | +52 m² +63% | 2024 |
|---|
| 120, Shirley Street904 m away | 83 m² | 135 m² | +52 m² +63% | 2020 |
|---|
| 20, Denmark Villas587 m away | 66 m² | 118 m² | +52 m² +79% | 2011 |
|---|
| 12, Connaught Terrace775 m away | 104 m² | 155 m² | +51 m² +49% | 2023 |
|---|
| 7, Clarendon Villas702 m away | 211 m² | 262 m² | +51 m² +24% | 2018 |
|---|
| 48, Livingstone Road801 m away | 44 m² | 95 m² | +51 m² +116% | 2014 |
|---|
| 19, Connaught Terrace775 m away | 108 m² | 157 m² | +49 m² +45% | 2023 |
|---|
| Flat 7, Vallance Court, Hove Street943 m away | 91 m² | 140 m² | +49 m² +54% | 2020 |
|---|
| 28, Brooker Street865 m away | 103 m² | 152 m² | +49 m² +48% | 2018 |
|---|
| 42d, Norton Road389 m away | 117 m² | 165 m² | +48 m² +41% | 2022 |
|---|
| Flat 4, 44, Brunswick Square550 m away | 48 m² | 96 m² | +48 m² +100% | 2019 |
|---|
| 13, Western Street834 m away | 36 m² | 84 m² | +48 m² +133% | 2017 |
|---|
| 24, Brooker Street865 m away | 98 m² | 145 m² | +47 m² +48% | 2026 |
|---|
| 27, Colbourne Road930 m away | 122 m² | 169 m² | +47 m² +39% | 2025 |
|---|
| 39, Sackville Road915 m away | 194 m² | 241 m² | +47 m² +24% | 2022 |
|---|
| 14, Denmark Mews740 m away | 129 m² | 176 m² | +47 m² +36% | 2020 |
|---|
| Flat 26, Grand Avenue Mansions, Grand Avenue262 m away | 65 m² | 112 m² | +47 m² +72% | 2019 |
|---|
| 13, Oxford Mews681 m away | 72 m² | 119 m² | +47 m² +65% | 2019 |
|---|
| 61, Goldstone Road888 m away | 43 m² | 90 m² | +47 m² +109% | 2019 |
|---|
| 27, Bigwood Avenue844 m away | 115 m² | 162 m² | +47 m² +41% | 2016 |
|---|
| Flat 1, 15, Fourth Avenue473 m away | 127 m² | 174 m² | +47 m² +37% | 2014 |
|---|
| 37, Brooker Street865 m away | 110 m² | 156 m² | +46 m² +42% | 2025 |
|---|
| 4, Osborne Villas729 m away | 55 m² | 101 m² | +46 m² +84% | 2023 |
|---|
| 39, Osmond Road995 m away | 176 m² | 222 m² | +46 m² +26% | 2021 |
|---|
| 44, Belfast Street746 m away | 85 m² | 131 m² | +46 m² +54% | 2019 |
|---|
| 188a, Church Road846 m away | 46 m² | 92 m² | +46 m² +100% | 2019 |
|---|
| 12, Montpelier Road953 m away | 76 m² | 122 m² | +46 m² +61% | 2019 |
|---|
| 78, Lyndhurst Road802 m away | 65 m² | 111 m² | +46 m² +71% | 2012 |
|---|
| Flat 7, 3, Third Avenue416 m away | 51 m² | 96 m² | +45 m² +88% | 2020 |
|---|
| 30b, Third Avenue406 m away | 85 m² | 130 m² | +45 m² +53% | 2017 |
|---|
| 14, Goldstone Villas664 m away | 58 m² | 103 m² | +45 m² +78% | 2016 |
|---|
| 20, Montpelier Road953 m away | 50 m² | 95 m² | +45 m² +90% | 2016 |
|---|
| Ground Floor Flat, 14, Farm Road470 m away | 50 m² | 95 m² | +45 m² +90% | 2008 |
|---|
| 115, Addison Road981 m away | 118 m² | 162 m² | +44 m² +37% | 2022 |
|---|
| 35, Tisbury Road340 m away | 63 m² | 107 m² | +44 m² +70% | 2011 |
|---|
| 14, Connaught Terrace775 m away | 107 m² | 150 m² | +43 m² +40% | 2022 |
|---|
| Flat 1, 8, Somerhill Road486 m away | 45 m² | 88 m² | +43 m² +96% | 2020 |
|---|
| 1, Brunswick Street West534 m away | 93 m² | 136 m² | +43 m² +46% | 2020 |
|---|
| 20, Medina Villas585 m away | 62 m² | 105 m² | +43 m² +69% | 2019 |
|---|
| Flat 8, 24, Second Avenue325 m away | 70 m² | 112 m² | +42 m² +60% | 2022 |
|---|
| 66, Denmark Villas745 m away | 63 m² | 105 m² | +42 m² +67% | 2020 |
|---|
| 18d, Clarendon Villas701 m away | 49 m² | 91 m² | +42 m² +86% | 2019 |
|---|
| 80, Goldstone Villas819 m away | 58 m² | 100 m² | +42 m² +72% | 2019 |
|---|
| 5b, Cambridge Grove624 m away | 83 m² | 125 m² | +42 m² +51% | 2018 |
|---|
| Flat 4, 6, Brunswick Square697 m away | 36 m² | 78 m² | +42 m² +117% | 2018 |
|---|
| 2, Norfolk Square814 m away | 52 m² | 94 m² | +42 m² +81% | 2016 |
|---|
| 41, Osmond Road995 m away | 165 m² | 207 m² | +42 m² +25% | 2010 |
|---|
| 35a, Colbourne Road930 m away | 59 m² | 100 m² | +41 m² +69% | 2026 |
|---|
| 23, Lansdowne Road377 m away | 85 m² | 126 m² | +41 m² +48% | 2023 |
|---|
| Flat 5, 62, The Drive389 m away | 65 m² | 106 m² | +41 m² +63% | 2013 |
|---|
| Flat 4, 10, Montpelier Road953 m away | 30 m² | 70 m² | +40 m² +133% | 2026 |
|---|
| 4, Cornwall Court, Wilbury Avenue707 m away | 33 m² | 73 m² | +40 m² +121% | 2023 |
|---|
| 36, Stirling Place815 m away | 93 m² | 133 m² | +40 m² +43% | 2023 |
|---|
| 12, Haddington Street633 m away | 85 m² | 125 m² | +40 m² +47% | 2019 |
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| 107, Addison Road981 m away | 45 m² | 85 m² | +40 m² +89% | 2018 |
|---|
| Flat 26, Veric, 16 - 18, Eaton Gardens548 m away | 41 m² | 81 m² | +40 m² +98% | 2015 |
|---|
| 92, Lyndhurst Road764 m away | 69 m² | 109 m² | +40 m² +58% | 2014 |
|---|
| Flat 1, 40, Medina Villas646 m away | 35 m² | 75 m² | +40 m² +114% | 2010 |
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| 77, Holland Road316 m away | 73 m² | 112 m² | +39 m² +53% | 2026 |
|---|
| 14a, Cross Street756 m away | 75 m² | 114 m² | +39 m² +52% | 2023 |
|---|
| Flat 2, 51, Clarendon Villas865 m away | 44 m² | 83 m² | +39 m² +89% | 2023 |
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| Flat 3, 74, Denmark Villas745 m away | 69 m² | 108 m² | +39 m² +57% | 2022 |
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| 29a, Norfolk Road833 m away | 45 m² | 84 m² | +39 m² +87% | 2019 |
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| 22, Rochester Close284 m away | 43 m² | 82 m² | +39 m² +91% | 2018 |
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| 34, Belfast Street746 m away | 90 m² | 129 m² | +39 m² +43% | 2016 |
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| 7, Western Road731 m away | 34 m² | 73 m² | +39 m² +115% | 2010 |
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| 63, Brunswick Street West534 m away | 98 m² | 136 m² | +38 m² +39% | 2024 |
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| Flat 8, 1, Adelaide Crescent464 m away | 40 m² | 78 m² | +38 m² +95% | 2023 |
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| Flat 3, 51, Montpelier Road947 m away | 43 m² | 81 m² | +38 m² +88% | 2023 |
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| 10, Park Royal, 66, Montpelier Road877 m away | 79 m² | 117 m² | +38 m² +48% | 2022 |
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| 16, Connaught Terrace775 m away | 104 m² | 142 m² | +38 m² +37% | 2020 |
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| 94, Lyndhurst Road764 m away | 143 m² | 181 m² | +38 m² +27% | 2019 |
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| 3, Kings Mews314 m away | 78 m² | 116 m² | +38 m² +49% | 2013 |
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| 67, Livingstone Road942 m away | 26 m² | 64 m² | +38 m² +146% | 2013 |
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| 35, Lower Market Street706 m away | 116 m² | 154 m² | +38 m² +33% | 2010 |
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| Flat 4, 10, Eaton Road407 m away | 60 m² | 97 m² | +37 m² +62% | 2024 |
|---|
| 40, Belfast Street746 m away | 87 m² | 124 m² | +37 m² +43% | 2024 |
|---|
| Flat 2, Aynsley Court, Wilbury Avenue755 m away | 52 m² | 89 m² | +37 m² +71% | 2024 |
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| 19, Norton Road407 m away | 61 m² | 98 m² | +37 m² +61% | 2016 |
|---|
| 18, Western Street834 m away | 94 m² | 131 m² | +37 m² +39% | 2013 |
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| 49, Brunswick Place508 m away | 85 m² | 122 m² | +37 m² +44% | 2009 |
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| 80, Church Road467 m away | 43 m² | 79 m² | +36 m² +84% | 2026 |
|---|
| 34, Brooker Street865 m away | 105 m² | 141 m² | +36 m² +34% | 2026 |
|---|
| Flat 5, 51, Clarendon Villas865 m away | 44 m² | 80 m² | +36 m² +82% | 2023 |
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| Flat 1, 16, Sackville Road945 m away | 46 m² | 82 m² | +36 m² +78% | 2021 |
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| 33, Lower Market Street706 m away | 42 m² | 78 m² | +36 m² +86% | 2018 |
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| 114, Shirley Street904 m away | 95 m² | 131 m² | +36 m² +38% | 2017 |
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| Flat 4, 16, First Avenue315 m away | 50 m² | 86 m² | +36 m² +72% | 2015 |
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| 116, Clarendon Road958 m away | 90 m² | 125 m² | +35 m² +39% | 2026 |
|---|
| Flat 1, 21, Third Avenue416 m away | 100 m² | 135 m² | +35 m² +35% | 2024 |
|---|
| Flat 2, 49, Brunswick Square587 m away | 54 m² | 89 m² | +35 m² +65% | 2023 |
|---|
| 2d, Lansdowne Place496 m away | 149 m² | 184 m² | +35 m² +23% | 2020 |
|---|
| Flat 5, 55, The Drive384 m away | 56 m² | 91 m² | +35 m² +63% | 2019 |
|---|
| 28, Connaught Terrace775 m away | 107 m² | 142 m² | +35 m² +33% | 2019 |
|---|
| 54b, Stirling Place815 m away | 66 m² | 101 m² | +35 m² +53% | 2018 |
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| 56, Cambridge Road635 m away | 33 m² | 68 m² | +35 m² +106% | 2016 |
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| 3, Bedford Place896 m away | 56 m² | 91 m² | +35 m² +63% | 2016 |
|---|
| 9, Goldstone Villas625 m away | 36 m² | 71 m² | +35 m² +97% | 2013 |
|---|
| 5, Goldstone Road740 m away | 51 m² | 86 m² | +35 m² +69% | 2011 |
|---|
| 67, Wilbury Crescent876 m away | 139 m² | 173 m² | +34 m² +24% | 2026 |
|---|
| 10, Rochester Gardens234 m away | 113 m² | 147 m² | +34 m² +30% | 2025 |
|---|
| Flat 5, 44, Brunswick Square550 m away | 91 m² | 125 m² | +34 m² +37% | 2024 |
|---|
| 102, Addison Road952 m away | 111 m² | 145 m² | +34 m² +31% | 2024 |
|---|
| 1, The Bungalows521 m away | 221 m² | 255 m² | +34 m² +15% | 2023 |
|---|
| 20, Connaught Terrace775 m away | 108 m² | 142 m² | +34 m² +31% | 2022 |
|---|
| Flat 3, 35, First Avenue213 m away | 36 m² | 70 m² | +34 m² +94% | 2019 |
|---|
| 129, Livingstone Road942 m away | 51 m² | 85 m² | +34 m² +67% | 2015 |
|---|
| 67, Lyndhurst Road764 m away | 136 m² | 170 m² | +34 m² +25% | 2014 |
|---|
| 26, Sackville Road955 m away | 117 m² | 150 m² | +33 m² +28% | 2024 |
|---|
| Flat 2, Gainsborough House, 4 - 6, Eaton Gardens431 m away | 89 m² | 122 m² | +33 m² +37% | 2023 |
|---|
| Flat 1, 51, Clarendon Villas865 m away | 50 m² | 83 m² | +33 m² +66% | 2023 |
|---|
| 34, Ferndale Road875 m away | 146 m² | 179 m² | +33 m² +23% | 2023 |
|---|
| 62, Shirley Street904 m away | 81 m² | 114 m² | +33 m² +41% | 2022 |
|---|
| 33, Denmark Villas641 m away | 98 m² | 131 m² | +33 m² +34% | 2020 |
|---|
| 40b, Sackville Road980 m away | 150 m² | 183 m² | +33 m² +22% | 2020 |
|---|
| 24, Goldstone Villas664 m away | 52 m² | 85 m² | +33 m² +63% | 2019 |
|---|
| 12, Oxford Mews681 m away | 75 m² | 108 m² | +33 m² +44% | 2019 |
|---|
| 79, Addison Road981 m away | 141 m² | 174 m² | +33 m² +23% | 2018 |
|---|
| 86b, Goldstone Villas819 m away | 62 m² | 95 m² | +33 m² +53% | 2017 |
|---|
| 83, Church Road135 m away | 30 m² | 63 m² | +33 m² +110% | 2016 |
|---|
| 24, Chapel Mews818 m away | 63 m² | 96 m² | +33 m² +52% | 2016 |
|---|
| 14, Holland Mews411 m away | 105 m² | 138 m² | +33 m² +31% | 2014 |
|---|
| 16, Wilbury Villas769 m away | 29 m² | 62 m² | +33 m² +114% | 2009 |
|---|
| 5, Denmark Villas524 m away | 43 m² | 75 m² | +32 m² +74% | 2026 |
|---|
| 10, Osborne Villas729 m away | 110 m² | 142 m² | +32 m² +29% | 2024 |
|---|
| 84, Addison Road952 m away | 116 m² | 148 m² | +32 m² +28% | 2024 |
|---|
| Flat 6, 51, Clarendon Villas865 m away | 48 m² | 80 m² | +32 m² +67% | 2023 |
|---|
| 76, Shirley Street904 m away | 83 m² | 115 m² | +32 m² +39% | 2022 |
|---|
| 23, Glendale Road908 m away | 132 m² | 164 m² | +32 m² +24% | 2022 |
|---|
| 21, Holland Mews411 m away | 102 m² | 134 m² | +32 m² +31% | 2020 |
|---|
| Flat 6, 29, Brunswick Square622 m away | 46 m² | 78 m² | +32 m² +70% | 2020 |
|---|
| Flat 3, 24, Clarendon Villas701 m away | 52 m² | 84 m² | +32 m² +62% | 2020 |
|---|
| 52, Brunswick Place556 m away | 43 m² | 75 m² | +32 m² +74% | 2018 |
|---|
| Flat 3, 51, Goldstone Villas702 m away | 33 m² | 65 m² | +32 m² +97% | 2018 |
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