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 WD18 7RE
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 |
|---|---|---|---|---|
| 32, Shepherds Road778 m away | 91 m² | 204 m² | +113 m² +124% | 2021 |
| 324, Whippendell Road498 m away | 82 m² | 182 m² | +100 m² +122% | 2026 |
| 36, Cassiobury Drive839 m away | 144 m² | 237 m² | +93 m² +65% | 2025 |
| 16, Fullerian Crescent962 m away | 101 m² | 182 m² | +81 m² +80% | 2023 |
| 19, Cassiobury Drive824 m away | 201 m² | 280 m² | +79 m² +39% | 2020 |
| 2, Fullerian Crescent962 m away | 98 m² | 174 m² | +76 m² +78% | 2021 |
| 38, St James Road471 m away | 64 m² | 138 m² | +74 m² +116% | 2014 |
| 318, Vicarage Road905 m away | 81 m² | 152 m² | +71 m² +88% | 2022 |
| 236, Whippendell Road281 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.
| 62 m² |
| 132 m² |
| +70 m² +113% |
| 2024 |
| 2, Tolpits Lane641 m away | 74 m² | 143 m² | +69 m² +93% | 2024 |
|---|
| 342, Hagden Lane573 m away | 103 m² | 171 m² | +68 m² +66% | 2019 |
|---|
| 31, Harwoods Road140 m away | 69 m² | 135 m² | +66 m² +96% | 2025 |
|---|
| 28, Shepherds Road778 m away | 130 m² | 196 m² | +66 m² +51% | 2018 |
|---|
| 214, Hagden Lane521 m away | 121 m² | 184 m² | +63 m² +52% | 2023 |
|---|
| 13, George V Close794 m away | 52 m² | 113 m² | +61 m² +117% | 2011 |
|---|
| 26, St James Road471 m away | 91 m² | 148 m² | +57 m² +63% | 2022 |
|---|
| 201, Chester Road193 m away | 90 m² | 146 m² | +56 m² +62% | 2022 |
|---|
| 59, Charlock Way872 m away | 85 m² | 139 m² | +54 m² +64% | 2025 |
|---|
| 91, Catalonia Apartments, Metropolitan Station Approach961 m away | 160 m² | 214 m² | +54 m² +34% | 2024 |
|---|
| 12, Kelmscott Crescent384 m away | 151 m² | 205 m² | +54 m² +36% | 2022 |
|---|
| 83, Kings Avenue355 m away | 97 m² | 150 m² | +53 m² +55% | 2024 |
|---|
| 46, Kelmscott Crescent384 m away | 94 m² | 147 m² | +53 m² +56% | 2023 |
|---|
| 480, Whippendell Road925 m away | 64 m² | 116 m² | +52 m² +81% | 2017 |
|---|
| 132, Princes Avenue502 m away | 90 m² | 141 m² | +51 m² +57% | 2026 |
|---|
| 138, Queens Avenue504 m away | 100 m² | 151 m² | +51 m² +51% | 2022 |
|---|
| 29, Princes Avenue279 m away | 95 m² | 145 m² | +50 m² +53% | 2024 |
|---|
| 81, Catalonia Apartments, Metropolitan Station Approach961 m away | 81 m² | 131 m² | +50 m² +62% | 2019 |
|---|
| 78, Mildred Avenue515 m away | 138 m² | 186 m² | +48 m² +35% | 2022 |
|---|
| 2, York Road991 m away | 112 m² | 160 m² | +48 m² +43% | 2021 |
|---|
| 69, Fearnley Street393 m away | 53 m² | 100 m² | +47 m² +89% | 2026 |
|---|
| 147a, Chester Road193 m away | 71 m² | 118 m² | +47 m² +66% | 2022 |
|---|
| 41, Euston Avenue457 m away | 107 m² | 154 m² | +47 m² +44% | 2022 |
|---|
| 9, Harwoods Road140 m away | 90 m² | 136 m² | +46 m² +51% | 2025 |
|---|
| 10, George V Close794 m away | 48 m² | 94 m² | +46 m² +96% | 2020 |
|---|
| 22, Cassio Road492 m away | 87 m² | 131 m² | +44 m² +51% | 2023 |
|---|
| 20, Queens Avenue320 m away | 94 m² | 138 m² | +44 m² +47% | 2022 |
|---|
| 21, Combe Road976 m away | 76 m² | 120 m² | +44 m² +58% | 2015 |
|---|
| 3, Observer Drive885 m away | 134 m² | 177 m² | +43 m² +32% | 2023 |
|---|
| 40, St James Road603 m away | 119 m² | 162 m² | +43 m² +36% | 2021 |
|---|
| 77, Kings Avenue355 m away | 83 m² | 126 m² | +43 m² +52% | 2010 |
|---|
| 75, Hagden Lane557 m away | 125 m² | 167 m² | +42 m² +34% | 2023 |
|---|
| 89, Princes Avenue279 m away | 99 m² | 140 m² | +41 m² +41% | 2026 |
|---|
| 39, Chester Road318 m away | 85 m² | 126 m² | +41 m² +48% | 2026 |
|---|
| 136, Whippendell Road247 m away | 83 m² | 124 m² | +41 m² +49% | 2022 |
|---|
| 46, Sydney Road737 m away | 85 m² | 126 m² | +41 m² +48% | 2022 |
|---|
| 440, Whippendell Road925 m away | 84 m² | 125 m² | +41 m² +49% | 2022 |
|---|
| 96, Harwoods Road0 m away | 70 m² | 111 m² | +41 m² +59% | 2020 |
|---|
| 85, Charlock Way877 m away | 79 m² | 120 m² | +41 m² +52% | 2020 |
|---|
| 28, Caractacus Green976 m away | 84 m² | 125 m² | +41 m² +49% | 2014 |
|---|
| 213, Whippendell Road242 m away | 82 m² | 122 m² | +40 m² +49% | 2025 |
|---|
| 64, Cassio Road492 m away | 87 m² | 127 m² | +40 m² +46% | 2025 |
|---|
| 47, Francis Road508 m away | 100 m² | 140 m² | +40 m² +40% | 2024 |
|---|
| 129, Whippendell Road230 m away | 74 m² | 114 m² | +40 m² +54% | 2022 |
|---|
| 163, Whippendell Road230 m away | 77 m² | 117 m² | +40 m² +52% | 2018 |
|---|
| 63, Belgrave Avenue426 m away | 41 m² | 81 m² | +40 m² +98% | 2016 |
|---|
| 68, St Marys Road571 m away | 67 m² | 106 m² | +39 m² +58% | 2025 |
|---|
| 96, Vicarage Road291 m away | 80 m² | 119 m² | +39 m² +49% | 2024 |
|---|
| 169, Vicarage Road230 m away | 105 m² | 144 m² | +39 m² +37% | 2023 |
|---|
| 96, Hagden Lane285 m away | 124 m² | 163 m² | +39 m² +31% | 2022 |
|---|
| 82, Fearnley Street360 m away | 94 m² | 132 m² | +38 m² +40% | 2023 |
|---|
| 87, Whippendell Road230 m away | 83 m² | 121 m² | +38 m² +46% | 2022 |
|---|
| 1, Farraline Road505 m away | 181 m² | 219 m² | +38 m² +21% | 2020 |
|---|
| 8, Oxford Street236 m away | 77 m² | 114 m² | +37 m² +48% | 2026 |
|---|
| 18, Caractacus Green976 m away | 84 m² | 121 m² | +37 m² +44% | 2026 |
|---|
| 24, Harwoods Road138 m away | 102 m² | 139 m² | +37 m² +36% | 2023 |
|---|
| 11, Princes Avenue279 m away | 90 m² | 127 m² | +37 m² +41% | 2023 |
|---|
| 57, Durban Road342 m away | 120 m² | 157 m² | +37 m² +31% | 2014 |
|---|
| 142a, Hagden Lane428 m away | 100 m² | 136 m² | +36 m² +36% | 2021 |
|---|
| 6, Combe Road976 m away | 77 m² | 112 m² | +35 m² +45% | 2026 |
|---|
| 73, St Marys Road548 m away | 72 m² | 107 m² | +35 m² +49% | 2022 |
|---|
| 109, Rickmansworth Road608 m away | 142 m² | 177 m² | +35 m² +25% | 2021 |
|---|
| 220, Whippendell Road281 m away | 121 m² | 155 m² | +34 m² +28% | 2026 |
|---|
| 289, Whippendell Road242 m away | 76 m² | 110 m² | +34 m² +45% | 2022 |
|---|
| 45, Catalonia Apartments, Metropolitan Station Approach961 m away | 76 m² | 109 m² | +33 m² +43% | 2019 |
|---|
| 11, Francis Road508 m away | 44 m² | 77 m² | +33 m² +75% | 2018 |
|---|
| 3, Burton Avenue309 m away | 38 m² | 71 m² | +33 m² +87% | 2017 |
|---|
| 11, George V Close794 m away | 38 m² | 71 m² | +33 m² +87% | 2012 |
|---|
| 18, Cardiff Road687 m away | 37 m² | 69 m² | +32 m² +86% | 2024 |
|---|
| 191, Harwoods Road260 m away | 87 m² | 119 m² | +32 m² +37% | 2022 |
|---|
| 82, Vicarage Road291 m away | 91 m² | 123 m² | +32 m² +35% | 2022 |
|---|
| 136, Queens Avenue504 m away | 107 m² | 139 m² | +32 m² +30% | 2019 |
|---|
| 39, Holywell Road207 m away | 108 m² | 139 m² | +31 m² +29% | 2024 |
|---|
| 14, Turpin Court, Tolpits Lane777 m away | 61 m² | 92 m² | +31 m² +51% | 2021 |
|---|
| 71, Catalonia Apartments, Metropolitan Station Approach961 m away | 80 m² | 111 m² | +31 m² +39% | 2021 |
|---|
| 8, Belgrave Avenue443 m away | 82 m² | 112 m² | +30 m² +37% | 2024 |
|---|
| 211b, Harwoods Road403 m away | 71 m² | 101 m² | +30 m² +42% | 2022 |
|---|
| 21, Clyston Road982 m away | 68 m² | 98 m² | +30 m² +44% | 2022 |
|---|
| 94, Harwoods Road0 m away | 81 m² | 111 m² | +30 m² +37% | 2020 |
|---|
| 43, Whippendell Road372 m away | 148 m² | 177 m² | +29 m² +20% | 2025 |
|---|
| Thornhill House, 14, Upton Road691 m away | 39 m² | 68 m² | +29 m² +74% | 2016 |
|---|
| 9, Crakers Mead684 m away | 42 m² | 70 m² | +28 m² +67% | 2025 |
|---|
| 8, Harwoods Road138 m away | 87 m² | 115 m² | +28 m² +32% | 2024 |
|---|
| 7, St James Road496 m away | 92 m² | 120 m² | +28 m² +30% | 2022 |
|---|
| 67, Harwoods Road30 m away | 79 m² | 107 m² | +28 m² +35% | 2020 |
|---|
| 26, Cardiff Road687 m away | 62 m² | 90 m² | +28 m² +45% | 2017 |
|---|
| 51, Kings Avenue355 m away | 65 m² | 93 m² | +28 m² +43% | 2014 |
|---|
| 136, Princes Avenue502 m away | 81 m² | 108 m² | +27 m² +33% | 2025 |
|---|
| 69, Cardiff Road722 m away | 74 m² | 101 m² | +27 m² +36% | 2024 |
|---|
| 139, Vicarage Road230 m away | 106 m² | 133 m² | +27 m² +25% | 2023 |
|---|
| 11, Whippendell Road372 m away | 118 m² | 145 m² | +27 m² +23% | 2023 |
|---|
| 80, Neal Street811 m away | 75 m² | 102 m² | +27 m² +36% | 2022 |
|---|
| 92, Harwoods Road0 m away | 75 m² | 102 m² | +27 m² +36% | 2020 |
|---|
| 102, Kensington Avenue443 m away | 92 m² | 119 m² | +27 m² +29% | 2020 |
|---|
| Flat 5, Manhattan Place, Metropolitan Mews976 m away | 47 m² | 74 m² | +27 m² +57% | 2020 |
|---|
| 56, Neal Street811 m away | 68 m² | 95 m² | +27 m² +40% | 2018 |
|---|
| 42, Kensington Avenue443 m away | 78 m² | 105 m² | +27 m² +35% | 2017 |
|---|
| 33, Merton Road474 m away | 69 m² | 96 m² | +27 m² +39% | 2015 |
|---|
| 378, Whippendell Road498 m away | 79 m² | 105 m² | +26 m² +33% | 2026 |
|---|
| 30, Upton Road613 m away | 41 m² | 67 m² | +26 m² +63% | 2026 |
|---|
| 18, St James Road471 m away | 90 m² | 116 m² | +26 m² +29% | 2024 |
|---|
| 316, Vicarage Road905 m away | 84 m² | 110 m² | +26 m² +31% | 2024 |
|---|
| 76, Harwoods Road0 m away | 78 m² | 104 m² | +26 m² +33% | 2023 |
|---|
| 256, Whippendell Road281 m away | 90 m² | 116 m² | +26 m² +29% | 2022 |
|---|
| 89, Euston Avenue457 m away | 100 m² | 126 m² | +26 m² +26% | 2021 |
|---|
| 94a, Queens Avenue408 m away | 32 m² | 58 m² | +26 m² +81% | 2020 |
|---|
| 1, Observer Drive885 m away | 127 m² | 153 m² | +26 m² +20% | 2020 |
|---|
| 88, Liverpool Road567 m away | 61 m² | 87 m² | +26 m² +43% | 2018 |
|---|
| Flat 4, 106, High Street824 m away | 18 m² | 44 m² | +26 m² +144% | 2017 |
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| 432, Whippendell Road925 m away | 86 m² | 112 m² | +26 m² +30% | 2017 |
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| 50, Chester Road337 m away | 75 m² | 101 m² | +26 m² +35% | 2014 |
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| 27, Holywell Road207 m away | 93 m² | 119 m² | +26 m² +28% | 2012 |
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| 47, Cardiff Road722 m away | 68 m² | 93 m² | +25 m² +37% | 2024 |
|---|
| 25, Cannon Road972 m away | 65 m² | 90 m² | +25 m² +38% | 2022 |
|---|
| 4, Tucker Street865 m away | 70 m² | 95 m² | +25 m² +36% | 2021 |
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| 6, Addiscombe Road408 m away | 80 m² | 105 m² | +25 m² +31% | 2020 |
|---|
| 47, Mildred Avenue476 m away | 91 m² | 116 m² | +25 m² +27% | 2019 |
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| 29, York Road991 m away | 69 m² | 94 m² | +25 m² +36% | 2019 |
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| 182, Whippendell Road195 m away | 42 m² | 67 m² | +25 m² +60% | 2012 |
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| 92, Mildred Avenue515 m away | 57 m² | 81 m² | +24 m² +42% | 2026 |
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| 5b, Oxford Street236 m away | 40 m² | 64 m² | +24 m² +60% | 2025 |
|---|
| 58, Neal Street811 m away | 69 m² | 93 m² | +24 m² +35% | 2021 |
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| 57, Belgrave Avenue426 m away | 81 m² | 105 m² | +24 m² +30% | 2020 |
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| 121, Vicarage Road230 m away | 98 m² | 121 m² | +23 m² +23% | 2025 |
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| 117, Whippendell Road230 m away | 85 m² | 108 m² | +23 m² +27% | 2021 |
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| 48, Pioneer Way670 m away | 21 m² | 43 m² | +22 m² +105% | 2026 |
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| Flat 13, Arliss Court, 24, Clarendon Road908 m away | 48 m² | 70 m² | +22 m² +46% | 2026 |
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| 113, Chester Road128 m away | 68 m² | 90 m² | +22 m² +32% | 2023 |
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| 75, Wilmington Close727 m away | 65 m² | 87 m² | +22 m² +34% | 2023 |
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| Rigby House, 30 - 34, The Parade797 m away | 31 m² | 53 m² | +22 m² +71% | 2022 |
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| 38a, Vicarage Road364 m away | 55 m² | 77 m² | +22 m² +40% | 2021 |
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| 123, Whippendell Road230 m away | 82 m² | 104 m² | +22 m² +27% | 2020 |
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| 15, Cassio Road451 m away | 32 m² | 54 m² | +22 m² +69% | 2016 |
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| 91a, Market Street482 m away | 58 m² | 79 m² | +21 m² +36% | 2026 |
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| 471, Whippendell Road739 m away | 84 m² | 105 m² | +21 m² +25% | 2026 |
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| 32, St Marys Road571 m away | 72 m² | 93 m² | +21 m² +29% | 2025 |
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| 81, Liverpool Road608 m away | 78 m² | 99 m² | +21 m² +27% | 2025 |
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| 352, Whippendell Road498 m away | 68 m² | 89 m² | +21 m² +31% | 2024 |
|---|
| 237, Whippendell Road242 m away | 107 m² | 128 m² | +21 m² +20% | 2023 |
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| 21, Chester Road318 m away | 113 m² | 134 m² | +21 m² +19% | 2022 |
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| 50, Ladys Close714 m away | 96 m² | 117 m² | +21 m² +22% | 2022 |
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| 53, Pumphouse Crescent976 m away | 128 m² | 149 m² | +21 m² +16% | 2021 |
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| 89, St James Road623 m away | 77 m² | 98 m² | +21 m² +27% | 2019 |
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| 12b, Holywell Road191 m away | 43 m² | 64 m² | +21 m² +49% | 2016 |
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| 35, King Georges Avenue950 m away | 85 m² | 106 m² | +21 m² +25% | 2013 |
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| 21, Hagden Lane323 m away | 79 m² | 99 m² | +20 m² +25% | 2026 |
|---|
| 132, Chester Road128 m away | 49 m² | 69 m² | +20 m² +41% | 2025 |
|---|
| 288, Hagden Lane608 m away | 81 m² | 101 m² | +20 m² +25% | 2025 |
|---|
| 30, Durban Road East262 m away | 108 m² | 128 m² | +20 m² +19% | 2022 |
|---|
| 12, Euston Avenue515 m away | 83 m² | 103 m² | +20 m² +24% | 2015 |
|---|
| 21, Burton Avenue309 m away | 74 m² | 93 m² | +19 m² +26% | 2025 |
|---|
| 1a, St Marys Road548 m away | 50 m² | 69 m² | +19 m² +38% | 2025 |
|---|
| 15, Cardiff Road722 m away | 73 m² | 92 m² | +19 m² +26% | 2025 |
|---|
| 49a, Kings Avenue355 m away | 36 m² | 55 m² | +19 m² +53% | 2023 |
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| 38, Tucker Street865 m away | 79 m² | 98 m² | +19 m² +24% | 2023 |
|---|
| 1, Sydney Road652 m away | 70 m² | 89 m² | +19 m² +27% | 2018 |
|---|
| 435, Whippendell Road739 m away | 84 m² | 103 m² | +19 m² +23% | 2018 |
|---|
| 45, Euston Avenue457 m away | 86 m² | 104 m² | +18 m² +21% | 2025 |
|---|
| Flat 7, Percy Court, 1, Percy Road592 m away | 54 m² | 72 m² | +18 m² +33% | 2025 |
|---|
| 3, Southsea Avenue312 m away | 79 m² | 97 m² | +18 m² +23% | 2020 |
|---|
| 111, Wiggenhall Road991 m away | 83 m² | 101 m² | +18 m² +22% | 2020 |
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| 60, Holm Oak Park541 m away | 32 m² | 50 m² | +18 m² +56% | 2019 |
|---|
| 66, Neal Street811 m away | 66 m² | 83 m² | +17 m² +26% | 2026 |
|---|
| 15, Oxford Street236 m away | 86 m² | 103 m² | +17 m² +20% | 2024 |
|---|
| 18, Harwoods Road138 m away | 80 m² | 97 m² | +17 m² +21% | 2023 |
|---|
| 57, Holm Oak Park541 m away | 32 m² | 49 m² | +17 m² +53% | 2023 |
|---|
| 34, Holywell Road191 m away | 93 m² | 110 m² | +17 m² +18% | 2022 |
|---|
| 125, Rickmansworth Road608 m away | 105 m² | 122 m² | +17 m² +16% | 2022 |
|---|
| 69, Holm Oak Park541 m away | 32 m² | 49 m² | +17 m² +53% | 2020 |
|---|
| 381, Whippendell Road534 m away | 81 m² | 98 m² | +17 m² +21% | 2014 |
|---|
| 87, Brightwell Road174 m away | 70 m² | 87 m² | +17 m² +24% | 2013 |
|---|
| 57, St Marys Road548 m away | 71 m² | 87 m² | +16 m² +23% | 2026 |
|---|
| 84, Queens Avenue408 m away | 95 m² | 111 m² | +16 m² +17% | 2022 |
|---|
| 2, Belgrave Avenue443 m away | 65 m² | 81 m² | +16 m² +25% | 2022 |
|---|
| 5, Premier Place486 m away | 60 m² | 76 m² | +16 m² +27% | 2022 |
|---|
| Flat 29, Mayfair Court, Observer Drive933 m away | 59 m² | 75 m² | +16 m² +27% | 2021 |
|---|
| 16, Clarendon Road908 m away | 28 m² | 44 m² | +16 m² +57% | 2019 |
|---|
| 43, Chester Road318 m away | 90 m² | 106 m² | +16 m² +18% | 2016 |
|---|
| 74, Chester Road215 m away | 86 m² | 102 m² | +16 m² +19% | 2014 |
|---|
| 58, Fearnley Street360 m away | 70 m² | 85 m² | +15 m² +21% | 2026 |
|---|
| 14, Merton Road435 m away | 34 m² | 49 m² | +15 m² +44% | 2026 |
|---|
| 51, Euston Avenue457 m away | 98 m² | 113 m² | +15 m² +15% | 2026 |
|---|
| 137, Chester Road128 m away | 63 m² | 78 m² | +15 m² +24% | 2023 |
|---|
| 24a, Vicarage Road456 m away | 45 m² | 60 m² | +15 m² +33% | 2022 |
|---|
| 310, Vicarage Road905 m away | 69 m² | 84 m² | +15 m² +22% | 2022 |
|---|
| 53, Liverpool Road608 m away | 61 m² | 76 m² | +15 m² +25% | 2021 |
|---|
| 17, Oxford Street236 m away | 74 m² | 89 m² | +15 m² +20% | 2015 |
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