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 RM1 3HE
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 |
|---|---|---|---|---|
| 26, Park Drive513 m away | 162 m² | 328 m² | +166 m² +102% | 2018 |
| 33, Oaklands Avenue404 m away | 145 m² | 297 m² | +152 m² +105% | 2023 |
| 50, Mashiters Walk615 m away | 112 m² | 231 m² | +119 m² +106% | 2021 |
| 123a, Pettits Lane990 m away | 94 m² | 205 m² | +111 m² +118% | 2025 |
| 1, Ivey Villas, 62, Brooklands Road874 m away | 98 m² | 195 m² | +97 m² +99% | 2022 |
| 20, Park Drive513 m away | 160 m² | 256 m² | +96 m² +60% | 2025 |
| 7, Repton Avenue961 m away | 127 m² | 220 m² | +93 m² +73% | 2024 |
| 52, Mashiters Walk615 m away | 92 m² | 185 m² | +93 m² +101% | 2019 |
| 176, Carlton Road935 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.
| 72 m² |
| 164 m² |
| +92 m² +128% |
| 2021 |
| 30, Lake Rise706 m away | 119 m² | 209 m² | +90 m² +76% | 2026 |
|---|
| 84, Pettits Lane860 m away | 148 m² | 235 m² | +87 m² +59% | 2023 |
|---|
| 15, The Avenue622 m away | 93 m² | 178 m² | +85 m² +91% | 2023 |
|---|
| 34, Knightsbridge Gardens765 m away | 74 m² | 156 m² | +82 m² +111% | 2019 |
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| 51, Mawney Road794 m away | 104 m² | 185 m² | +81 m² +78% | 2015 |
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| 71, Lake Rise941 m away | 106 m² | 186 m² | +80 m² +75% | 2018 |
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| 37, Havering Drive637 m away | 139 m² | 216 m² | +77 m² +55% | 2020 |
|---|
| 174, Lodge Avenue711 m away | 121 m² | 193 m² | +72 m² +60% | 2019 |
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| 32, Pettits Lane592 m away | 91 m² | 160 m² | +69 m² +76% | 2025 |
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| 14, Lodge Avenue597 m away | 95 m² | 161 m² | +66 m² +69% | 2024 |
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| 109, Pettits Lane860 m away | 100 m² | 165 m² | +65 m² +65% | 2025 |
|---|
| 58, Carlton Road566 m away | 86 m² | 150 m² | +64 m² +74% | 2025 |
|---|
| 37, Kingston Road467 m away | 97 m² | 160 m² | +63 m² +65% | 2023 |
|---|
| 36a, Lodge Avenue597 m away | 92 m² | 153 m² | +61 m² +66% | 2013 |
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| 9, Alexandra Road709 m away | 71 m² | 131 m² | +60 m² +85% | 2021 |
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| 6, Erroll Road410 m away | 104 m² | 163 m² | +59 m² +57% | 2026 |
|---|
| 21, The Avenue622 m away | 94 m² | 153 m² | +59 m² +63% | 2023 |
|---|
| 25, The Chase704 m away | 116 m² | 174 m² | +58 m² +50% | 2024 |
|---|
| 2, Pettley Gardens724 m away | 51 m² | 109 m² | +58 m² +114% | 2022 |
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| 104, Como Street795 m away | 87 m² | 143 m² | +56 m² +64% | 2025 |
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| 104, Seymer Road882 m away | 83 m² | 138 m² | +55 m² +66% | 2026 |
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| 25, Linden Street569 m away | 163 m² | 217 m² | +54 m² +33% | 2025 |
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| 45, Pettits Lane592 m away | 121 m² | 173 m² | +52 m² +43% | 2020 |
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| 28, Lodge Avenue597 m away | 97 m² | 148 m² | +51 m² +53% | 2018 |
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| 4, Lofthaus Apartments, 47a, Market Place221 m away | 75 m² | 125 m² | +50 m² +67% | 2026 |
|---|
| 114, North Street573 m away | 75 m² | 124 m² | +49 m² +65% | 2022 |
|---|
| 24, Brentwood Road986 m away | 90 m² | 138 m² | +48 m² +53% | 2024 |
|---|
| 25, Manor Road816 m away | 157 m² | 204 m² | +47 m² +30% | 2021 |
|---|
| 4, Lake Rise706 m away | 144 m² | 190 m² | +46 m² +32% | 2014 |
|---|
| 143, Lodge Avenue674 m away | 103 m² | 148 m² | +45 m² +44% | 2025 |
|---|
| 1, Kings Road767 m away | 73 m² | 118 m² | +45 m² +62% | 2025 |
|---|
| 49, Junction Road345 m away | 205 m² | 250 m² | +45 m² +22% | 2010 |
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| 12, Mashiters Walk526 m away | 100 m² | 143 m² | +43 m² +43% | 2025 |
|---|
| 38, Mawney Road693 m away | 126 m² | 169 m² | +43 m² +34% | 2023 |
|---|
| 24, Lodge Avenue597 m away | 99 m² | 142 m² | +43 m² +43% | 2022 |
|---|
| 3, Pettits Lane462 m away | 139 m² | 181 m² | +42 m² +30% | 2024 |
|---|
| 62, Havering Drive637 m away | 88 m² | 130 m² | +42 m² +48% | 2021 |
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| 61, Lodge Avenue608 m away | 92 m² | 133 m² | +41 m² +45% | 2022 |
|---|
| Squirrels Lodge, 2a, Havering Drive503 m away | 193 m² | 234 m² | +41 m² +21% | 2021 |
|---|
| 19, Heath Park Road880 m away | 144 m² | 184 m² | +40 m² +28% | 2024 |
|---|
| 141, Stanley Avenue780 m away | 92 m² | 132 m² | +40 m² +43% | 2016 |
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| 64, Cotleigh Road986 m away | 67 m² | 106 m² | +39 m² +58% | 2026 |
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| 12, Erroll Road410 m away | 86 m² | 125 m² | +39 m² +45% | 2024 |
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| 78, Seymer Road882 m away | 40 m² | 79 m² | +39 m² +98% | 2022 |
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| 22, Oaklands Avenue404 m away | 147 m² | 184 m² | +37 m² +25% | 2024 |
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| 23, Brentwood Road953 m away | 86 m² | 123 m² | +37 m² +43% | 2017 |
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| 111, George Street843 m away | 80 m² | 116 m² | +36 m² +45% | 2024 |
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| 5, Heath Park Road880 m away | 101 m² | 137 m² | +36 m² +36% | 2021 |
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| 122, Pettits Lane990 m away | 100 m² | 136 m² | +36 m² +36% | 2021 |
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| 15, Dickens Way327 m away | 198 m² | 233 m² | +35 m² +18% | 2022 |
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| 38, Woodlands Road641 m away | 63 m² | 98 m² | +35 m² +56% | 2019 |
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| 35a, Lodge Avenue510 m away | 70 m² | 104 m² | +34 m² +49% | 2026 |
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| 86, Mashiters Walk756 m away | 94 m² | 128 m² | +34 m² +36% | 2026 |
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| 53, Mcintosh Road741 m away | 114 m² | 148 m² | +34 m² +30% | 2024 |
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| 114, Lake Rise981 m away | 91 m² | 125 m² | +34 m² +37% | 2018 |
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| 48, Woodlands Road641 m away | 156 m² | 189 m² | +33 m² +21% | 2022 |
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| 20, Erroll Road410 m away | 137 m² | 168 m² | +31 m² +23% | 2021 |
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| 27, Woodlands Road641 m away | 91 m² | 121 m² | +30 m² +33% | 2025 |
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| 11, Junction Road235 m away | 21 m² | 51 m² | +30 m² +143% | 2021 |
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| 64, South Street405 m away | 52 m² | 82 m² | +30 m² +58% | 2020 |
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| 135, Pettits Lane990 m away | 93 m² | 123 m² | +30 m² +32% | 2019 |
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| 74, Glenwood Drive693 m away | 89 m² | 118 m² | +29 m² +33% | 2026 |
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| 157, Index Apartments, Mercury Gardens57 m away | 70 m² | 99 m² | +29 m² +41% | 2022 |
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| 16, Havering Drive503 m away | 120 m² | 149 m² | +29 m² +24% | 2021 |
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| 17, George Street683 m away | 58 m² | 87 m² | +29 m² +50% | 2011 |
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| 41, Verve Apartments, 5, Mercury Gardens259 m away | 32 m² | 60 m² | +28 m² +88% | 2026 |
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| 135, Dorset Avenue867 m away | 126 m² | 154 m² | +28 m² +22% | 2026 |
|---|
| 31, Malt House Place434 m away | 56 m² | 84 m² | +28 m² +50% | 2021 |
|---|
| 265, South Street967 m away | 58 m² | 86 m² | +28 m² +48% | 2019 |
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| 218, Victoria Road645 m away | 54 m² | 82 m² | +28 m² +52% | 2015 |
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| 169, North Street828 m away | 44 m² | 72 m² | +28 m² +64% | 2014 |
|---|
| 43, Mawney Road794 m away | 94 m² | 121 m² | +27 m² +29% | 2024 |
|---|
| 24, Kingsmead Avenue713 m away | 95 m² | 122 m² | +27 m² +28% | 2023 |
|---|
| 69a, London Road826 m away | 40 m² | 67 m² | +27 m² +68% | 2010 |
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| Carlisle House, 198, Victoria Road587 m away | 38 m² | 64 m² | +26 m² +68% | 2026 |
|---|
| 97, Carlton Road889 m away | 83 m² | 109 m² | +26 m² +31% | 2025 |
|---|
| 126, George Street843 m away | 105 m² | 131 m² | +26 m² +25% | 2022 |
|---|
| 38, Marshalls Drive960 m away | 72 m² | 98 m² | +26 m² +36% | 2022 |
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| 184, North Street697 m away | 142 m² | 168 m² | +26 m² +18% | 2021 |
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| 2, Raphael Avenue959 m away | 126 m² | 152 m² | +26 m² +21% | 2017 |
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| 12, Rosemary Avenue747 m away | 144 m² | 169 m² | +25 m² +17% | 2023 |
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| 50, Princes Road932 m away | 156 m² | 181 m² | +25 m² +16% | 2020 |
|---|
| 32, Como Street682 m away | 107 m² | 132 m² | +25 m² +23% | 2019 |
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| 20, Maxim Tower, Mercury Gardens0 m away | 39 m² | 64 m² | +25 m² +64% | 2015 |
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| 57a, Brentwood Road916 m away | 42 m² | 66 m² | +24 m² +57% | 2026 |
|---|
| 125, Lodge Avenue608 m away | 101 m² | 125 m² | +24 m² +24% | 2025 |
|---|
| 34, George Street718 m away | 68 m² | 92 m² | +24 m² +35% | 2025 |
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| 94, Seymer Road882 m away | 76 m² | 100 m² | +24 m² +32% | 2024 |
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| 5, Olive Street661 m away | 98 m² | 122 m² | +24 m² +24% | 2023 |
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| 4a, Carlton Road467 m away | 40 m² | 64 m² | +24 m² +60% | 2021 |
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| 6, Woodlands Road641 m away | 103 m² | 127 m² | +24 m² +23% | 2021 |
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| Flat 20, Southbury Court, South Street700 m away | 57 m² | 81 m² | +24 m² +42% | 2020 |
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| Flat 62, Nayland Court, Market Place178 m away | 68 m² | 92 m² | +24 m² +35% | 2018 |
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| 92, Eastern Road401 m away | 29 m² | 53 m² | +24 m² +83% | 2017 |
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| 93, Seymer Road935 m away | 80 m² | 104 m² | +24 m² +30% | 2013 |
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| 85, Mawney Road986 m away | 150 m² | 174 m² | +24 m² +16% | 2009 |
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| 49, Brooklands Road874 m away | 77 m² | 100 m² | +23 m² +30% | 2026 |
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| 4, Aveley Road507 m away | 74 m² | 97 m² | +23 m² +31% | 2025 |
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| 116, Pettits Lane990 m away | 136 m² | 159 m² | +23 m² +17% | 2021 |
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| 32, Kingston Road467 m away | 143 m² | 166 m² | +23 m² +16% | 2019 |
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| 4, Gloucester Road782 m away | 82 m² | 105 m² | +23 m² +28% | 2019 |
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| 64, Exon Apartments, Mercury Gardens35 m away | 54 m² | 76 m² | +22 m² +41% | 2024 |
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| Apartment 5, Rubicon Court, 21 - 23, North Street393 m away | 43 m² | 65 m² | +22 m² +51% | 2019 |
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| 22, The Avenue622 m away | 117 m² | 139 m² | +22 m² +19% | 2017 |
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| Scimitar House, 23, Eastern Road405 m away | 46 m² | 68 m² | +22 m² +48% | 2016 |
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| 7, Lodge Avenue510 m away | 85 m² | 107 m² | +22 m² +26% | 2012 |
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| 105, Mashiters Walk887 m away | 98 m² | 119 m² | +21 m² +21% | 2025 |
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| 83a, Brentwood Road913 m away | 35 m² | 56 m² | +21 m² +60% | 2024 |
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| Flat 3, Graveney Court, Riverside Close800 m away | 53 m² | 74 m² | +21 m² +40% | 2023 |
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| 27, Richmond Road814 m away | 67 m² | 88 m² | +21 m² +31% | 2023 |
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| 85, Dorset Avenue867 m away | 96 m² | 117 m² | +21 m² +22% | 2023 |
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| Flat 1, Hill Court, Main Road375 m away | 60 m² | 81 m² | +21 m² +35% | 2020 |
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| Flat 10, The Metro 50-56, Victoria Road586 m away | 56 m² | 77 m² | +21 m² +38% | 2019 |
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| 94, Dorset Avenue867 m away | 81 m² | 102 m² | +21 m² +26% | 2019 |
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| 95, Lake Rise941 m away | 95 m² | 116 m² | +21 m² +22% | 2019 |
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| 8, Malt House Place434 m away | 40 m² | 61 m² | +21 m² +53% | 2016 |
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| Flat 1, Jane Court, Victoria Road522 m away | 46 m² | 67 m² | +21 m² +46% | 2016 |
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| 36, Princes Road753 m away | 79 m² | 99 m² | +20 m² +25% | 2025 |
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| 5, Hill Grove893 m away | 91 m² | 111 m² | +20 m² +22% | 2025 |
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| Flat 6, Chartwell Place, Junction Road200 m away | 65 m² | 85 m² | +20 m² +31% | 2022 |
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| 144, Stanley Avenue745 m away | 80 m² | 100 m² | +20 m² +25% | 2022 |
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| 52, Princes Road932 m away | 120 m² | 140 m² | +20 m² +17% | 2021 |
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| 61, Glenwood Drive652 m away | 89 m² | 109 m² | +20 m² +22% | 2019 |
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| Flat 5, Jane Court, Victoria Road522 m away | 47 m² | 67 m² | +20 m² +43% | 2016 |
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| 7, The Avenue622 m away | 129 m² | 149 m² | +20 m² +16% | 2014 |
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| 12, Heath Park Road880 m away | 82 m² | 102 m² | +20 m² +24% | 2012 |
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| 27, Maxim Tower, Mercury Gardens0 m away | 40 m² | 60 m² | +20 m² +50% | 2011 |
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| 109, Stanley Avenue780 m away | 89 m² | 108 m² | +19 m² +21% | 2026 |
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| 18, Shaftesbury Road731 m away | 79 m² | 98 m² | +19 m² +24% | 2023 |
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| Flat 38, Pulse Court, Maxwell Road932 m away | 65 m² | 84 m² | +19 m² +29% | 2023 |
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| 22, Knightsbridge Gardens765 m away | 76 m² | 95 m² | +19 m² +25% | 2021 |
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| 7, Yew Tree Gardens685 m away | 89 m² | 108 m² | +19 m² +21% | 2019 |
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| 8, Alexandra Road709 m away | 90 m² | 109 m² | +19 m² +21% | 2017 |
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| 91, Dorset Avenue867 m away | 93 m² | 112 m² | +19 m² +20% | 2016 |
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| 135, Stanley Avenue780 m away | 97 m² | 116 m² | +19 m² +20% | 2014 |
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| Flat 5, Gibson Court, Regarth Avenue755 m away | 37 m² | 56 m² | +19 m² +51% | 2013 |
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| 96, Como Street795 m away | 103 m² | 121 m² | +18 m² +17% | 2025 |
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| 92, Stanley Avenue862 m away | 92 m² | 110 m² | +18 m² +20% | 2025 |
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| Flat 8, Chartwell Place, Junction Road200 m away | 47 m² | 65 m² | +18 m² +38% | 2024 |
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| 10, St Ivians Drive903 m away | 102 m² | 120 m² | +18 m² +18% | 2024 |
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| 71, Manor Road976 m away | 89 m² | 107 m² | +18 m² +20% | 2024 |
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| 62, Glenwood Drive693 m away | 80 m² | 98 m² | +18 m² +23% | 2023 |
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| Flat 11, Magnolia Court, 31, Mawney Road794 m away | 66 m² | 84 m² | +18 m² +27% | 2023 |
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| 11, Kingston Road342 m away | 55 m² | 73 m² | +18 m² +33% | 2022 |
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| 32, Malt House Place434 m away | 41 m² | 59 m² | +18 m² +44% | 2020 |
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| 117, Dorset Avenue867 m away | 78 m² | 96 m² | +18 m² +23% | 2020 |
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| 99, Stanley Avenue862 m away | 87 m² | 105 m² | +18 m² +21% | 2015 |
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| 90, Glenwood Drive693 m away | 81 m² | 99 m² | +18 m² +22% | 2012 |
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| Flat 20, Calder Court, Riverside Close769 m away | 44 m² | 62 m² | +18 m² +41% | 2009 |
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| 12, Medora Road809 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
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| Flat 7, Amber Court, High Street412 m away | 41 m² | 58 m² | +17 m² +41% | 2025 |
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| 66, Exon Apartments, Mercury Gardens35 m away | 32 m² | 49 m² | +17 m² +53% | 2021 |
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| 20, Malt House Place434 m away | 41 m² | 58 m² | +17 m² +41% | 2020 |
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| Flat 7, Jane Court, Victoria Road522 m away | 59 m² | 76 m² | +17 m² +29% | 2016 |
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| 98, Lake Rise981 m away | 101 m² | 118 m² | +17 m² +17% | 2016 |
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| 8, Lodge Avenue597 m away | 89 m² | 106 m² | +17 m² +19% | 2014 |
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| 53, Mawney Road794 m away | 102 m² | 119 m² | +17 m² +17% | 2012 |
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| 22, Angel Way456 m away | 61 m² | 78 m² | +17 m² +28% | 2011 |
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| Flat 9, Portman House, 16 - 20, Victoria Road620 m away | 45 m² | 61 m² | +16 m² +36% | 2026 |
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| 17, Medora Road809 m away | 98 m² | 114 m² | +16 m² +16% | 2025 |
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| 10, Princes Road753 m away | 93 m² | 109 m² | +16 m² +17% | 2024 |
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| Flat 8, Magnolia Court, 31, Mawney Road794 m away | 66 m² | 82 m² | +16 m² +24% | 2023 |
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| 35, Medora Road809 m away | 83 m² | 99 m² | +16 m² +19% | 2020 |
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| 58, Rushdon Close948 m away | 32 m² | 48 m² | +16 m² +50% | 2017 |
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| 3, Albert Mews645 m away | 31 m² | 47 m² | +16 m² +52% | 2016 |
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| 25, Malt House Place434 m away | 41 m² | 57 m² | +16 m² +39% | 2012 |
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| Flat 22, Oak House, Cottons Approach822 m away | 48 m² | 64 m² | +16 m² +33% | 2011 |
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| 37, Maxim Tower, Mercury Gardens0 m away | 47 m² | 62 m² | +15 m² +32% | 2025 |
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| 10, Ives Gardens370 m away | 96 m² | 111 m² | +15 m² +16% | 2024 |
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| 24, Cotleigh Road923 m away | 90 m² | 105 m² | +15 m² +17% | 2024 |
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| Flat 5, Magnolia Court, 31, Mawney Road794 m away | 66 m² | 81 m² | +15 m² +23% | 2023 |
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| Flat 2, Magnolia Court, 31, Mawney Road794 m away | 66 m² | 81 m² | +15 m² +23% | 2023 |
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| 26, Brooklands Road756 m away | 94 m² | 109 m² | +15 m² +16% | 2022 |
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| 39, Station Parade657 m away | 49 m² | 64 m² | +15 m² +31% | 2020 |
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| Flat 1, The Gatehouse, High Street475 m away | 47 m² | 62 m² | +15 m² +32% | 2019 |
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| 16, Carlisle Road710 m away | 94 m² | 109 m² | +15 m² +16% | 2016 |
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| Apartment 3, Rubicon Court, 21 - 23, North Street393 m away | 42 m² | 57 m² | +15 m² +36% | 2015 |
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