Finding extended homes…
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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 IG11 7LF
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 |
|---|---|---|---|---|
| 13, Sussex Road963 m away | 99 m² | 196 m² | +97 m² +98% | 2013 |
| 38, St Erkenwald Road491 m away | 93 m² | 186 m² | +93 m² +100% | 2015 |
| 3, Cecil Avenue895 m away | 108 m² | 180 m² | +72 m² +67% | 2022 |
| 20, Devon Road904 m away | 54 m² | 117 m² | +63 m² +117% | 2023 |
| 117, Salisbury Avenue880 m away | 92 m² | 155 m² | +63 m² +68% | 2021 |
| 123, Salisbury Avenue880 m away | 86 m² | 149 m² | +63 m² +73% | 2019 |
| 6, Langdon Crescent897 m away | 83 m² | 145 m² | +62 m² +75% | 2026 |
| 24, Westminster Gardens874 m away | 66 m² | 127 m² | +61 m² +92% | 2026 |
| 23, Cranleigh Gardens1000 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.
| 130 m² |
| 191 m² |
| +61 m² +47% |
| 2024 |
| 1, Essex Road693 m away | 79 m² | 139 m² | +60 m² +76% | 2021 |
|---|
| 17, Priory Road785 m away | 87 m² | 147 m² | +60 m² +69% | 2016 |
|---|
| 4, Cecil Avenue895 m away | 121 m² | 181 m² | +60 m² +50% | 2015 |
|---|
| 5, Langdon Crescent959 m away | 81 m² | 140 m² | +59 m² +73% | 2021 |
|---|
| 36, St Erkenwald Road491 m away | 61 m² | 119 m² | +58 m² +95% | 2019 |
|---|
| 46, Waverley Gardens942 m away | 41 m² | 99 m² | +58 m² +141% | 2016 |
|---|
| 21, Sherwood Gardens954 m away | 84 m² | 141 m² | +57 m² +68% | 2025 |
|---|
| 22, Netherfield Gardens995 m away | 96 m² | 149 m² | +53 m² +55% | 2024 |
|---|
| 27, Cranleigh Gardens1000 m away | 96 m² | 148 m² | +52 m² +54% | 2019 |
|---|
| 22, Kennedy Road923 m away | 57 m² | 108 m² | +51 m² +89% | 2013 |
|---|
| 10, Rosslyn Road789 m away | 95 m² | 145 m² | +50 m² +53% | 2020 |
|---|
| 286, Howard Road599 m away | 87 m² | 136 m² | +49 m² +56% | 2024 |
|---|
| 2, Jack Cook House, Whiting Avenue666 m away | 48 m² | 97 m² | +49 m² +102% | 2023 |
|---|
| Flat 80, The Odeon, 22 - 30, Longbridge Road807 m away | 70 m² | 119 m² | +49 m² +70% | 2022 |
|---|
| Flat 514, Cutmore Ropeworks, 1, Arboretum Place420 m away | 39 m² | 88 m² | +49 m² +126% | 2014 |
|---|
| 28, Westminster Gardens874 m away | 88 m² | 135 m² | +47 m² +53% | 2026 |
|---|
| 41, Priory Road785 m away | 68 m² | 114 m² | +46 m² +68% | 2015 |
|---|
| 25, Cecil Avenue879 m away | 138 m² | 183 m² | +45 m² +33% | 2015 |
|---|
| 33, Westminster Gardens874 m away | 75 m² | 119 m² | +44 m² +59% | 2024 |
|---|
| 38, St Johns Road954 m away | 80 m² | 124 m² | +44 m² +55% | 2019 |
|---|
| 27, Devon Road894 m away | 71 m² | 115 m² | +44 m² +62% | 2014 |
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| 27, Greatfields Road660 m away | 62 m² | 106 m² | +44 m² +71% | 2013 |
|---|
| 31, Cranleigh Gardens1000 m away | 217 m² | 260 m² | +43 m² +20% | 2014 |
|---|
| 251, Morley Road543 m away | 85 m² | 127 m² | +42 m² +49% | 2021 |
|---|
| 7, Cecil Avenue895 m away | 111 m² | 153 m² | +42 m² +38% | 2016 |
|---|
| 36, Thorpe Road795 m away | 98 m² | 139 m² | +41 m² +42% | 2022 |
|---|
| Flat 611 Schrier, Ropeworks, 1, Arboretum Place385 m away | 36 m² | 77 m² | +41 m² +114% | 2014 |
|---|
| 75, Cecil Avenue847 m away | 102 m² | 143 m² | +41 m² +40% | 2014 |
|---|
| Flat 15, Bower House, Whiting Avenue764 m away | 42 m² | 82 m² | +40 m² +95% | 2025 |
|---|
| 14, Netherfield Gardens995 m away | 69 m² | 109 m² | +40 m² +58% | 2012 |
|---|
| 217, Morley Road443 m away | 56 m² | 95 m² | +39 m² +70% | 2017 |
|---|
| 21, Devon Road894 m away | 87 m² | 125 m² | +38 m² +44% | 2026 |
|---|
| 20, St Erkenwald Road491 m away | 104 m² | 142 m² | +38 m² +37% | 2024 |
|---|
| 47, Waverley Gardens942 m away | 71 m² | 108 m² | +37 m² +52% | 2026 |
|---|
| 14, St Erkenwald Road491 m away | 94 m² | 131 m² | +37 m² +39% | 2025 |
|---|
| 62, Salisbury Avenue925 m away | 86 m² | 123 m² | +37 m² +43% | 2023 |
|---|
| 25, Suffolk Road785 m away | 66 m² | 103 m² | +37 m² +56% | 2021 |
|---|
| 4, Rosslyn Road789 m away | 48 m² | 85 m² | +37 m² +77% | 2014 |
|---|
| 22, Rosslyn Road789 m away | 99 m² | 135 m² | +36 m² +36% | 2026 |
|---|
| 76, Eldred Road776 m away | 75 m² | 111 m² | +36 m² +48% | 2016 |
|---|
| 91, Wedderburn Road745 m away | 33 m² | 69 m² | +36 m² +109% | 2014 |
|---|
| 10, Sherwood Gardens954 m away | 85 m² | 120 m² | +35 m² +41% | 2026 |
|---|
| 807, Lemonade Building, 3, Arboretum Place465 m away | 39 m² | 74 m² | +35 m² +90% | 2021 |
|---|
| 59, Movers Lane718 m away | 71 m² | 106 m² | +35 m² +49% | 2010 |
|---|
| 21, Whiting Avenue856 m away | 45 m² | 79 m² | +34 m² +76% | 2026 |
|---|
| 73, Essex Road693 m away | 95 m² | 129 m² | +34 m² +36% | 2025 |
|---|
| 44, Cranborne Road547 m away | 68 m² | 102 m² | +34 m² +50% | 2020 |
|---|
| 200a, Ripple Road432 m away | 78 m² | 112 m² | +34 m² +44% | 2015 |
|---|
| 30, Cecil Avenue891 m away | 97 m² | 130 m² | +33 m² +34% | 2026 |
|---|
| 28, Thorpe Road795 m away | 98 m² | 131 m² | +33 m² +34% | 2024 |
|---|
| 2, Sparsholt Road982 m away | 108 m² | 141 m² | +33 m² +31% | 2024 |
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| 14, Sparsholt Road982 m away | 47 m² | 80 m² | +33 m² +70% | 2022 |
|---|
| 32, Cranleigh Gardens1000 m away | 91 m² | 124 m² | +33 m² +36% | 2021 |
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| 46, Essex Road728 m away | 90 m² | 122 m² | +32 m² +36% | 2015 |
|---|
| 24, Sussex Road974 m away | 90 m² | 121 m² | +31 m² +34% | 2020 |
|---|
| 70, Westbury Road410 m away | 85 m² | 116 m² | +31 m² +36% | 2014 |
|---|
| 46, Cranborne Road547 m away | 87 m² | 117 m² | +30 m² +34% | 2026 |
|---|
| 43, Suffolk Road785 m away | 92 m² | 122 m² | +30 m² +33% | 2023 |
|---|
| 39, Cranborne Road503 m away | 96 m² | 126 m² | +30 m² +31% | 2017 |
|---|
| 22, Priory Road785 m away | 91 m² | 120 m² | +29 m² +32% | 2025 |
|---|
| 12, Netherfield Gardens995 m away | 96 m² | 125 m² | +29 m² +30% | 2025 |
|---|
| 163, Keith Road593 m away | 48 m² | 77 m² | +29 m² +60% | 2022 |
|---|
| 13, Greatfields Road660 m away | 68 m² | 97 m² | +29 m² +43% | 2020 |
|---|
| 6, Westminster Gardens874 m away | 69 m² | 98 m² | +29 m² +42% | 2015 |
|---|
| 24, Cranborne Road547 m away | 61 m² | 90 m² | +29 m² +48% | 2014 |
|---|
| 151, St Awdrys Road581 m away | 86 m² | 115 m² | +29 m² +34% | 2014 |
|---|
| 84, Suffolk Road766 m away | 93 m² | 121 m² | +28 m² +30% | 2023 |
|---|
| 64, King Edwards Road437 m away | 68 m² | 96 m² | +28 m² +41% | 2022 |
|---|
| 268, Boundary Road514 m away | 69 m² | 97 m² | +28 m² +41% | 2021 |
|---|
| 71, Essex Road693 m away | 90 m² | 118 m² | +28 m² +31% | 2021 |
|---|
| 40, Netherfield Gardens995 m away | 101 m² | 129 m² | +28 m² +28% | 2019 |
|---|
| 46, Westbury Road410 m away | 98 m² | 126 m² | +28 m² +29% | 2015 |
|---|
| 56, Eldred Road776 m away | 70 m² | 98 m² | +28 m² +40% | 2014 |
|---|
| 64, Waverley Gardens942 m away | 76 m² | 103 m² | +27 m² +36% | 2023 |
|---|
| 24, Thorpe Road795 m away | 96 m² | 123 m² | +27 m² +28% | 2014 |
|---|
| 63, Salisbury Avenue728 m away | 87 m² | 113 m² | +26 m² +30% | 2025 |
|---|
| 41, Suffolk Road785 m away | 114 m² | 140 m² | +26 m² +23% | 2025 |
|---|
| 303, Ripple Road961 m away | 48 m² | 74 m² | +26 m² +54% | 2024 |
|---|
| 16, Priory Road785 m away | 79 m² | 105 m² | +26 m² +33% | 2021 |
|---|
| Flat 214, Cutmore Ropeworks, 1, Arboretum Place420 m away | 58 m² | 84 m² | +26 m² +45% | 2009 |
|---|
| 82, Essex Road728 m away | 129 m² | 154 m² | +25 m² +19% | 2026 |
|---|
| 9, Priory Road785 m away | 89 m² | 114 m² | +25 m² +28% | 2023 |
|---|
| Flat 82, The Halcyon, 6, Drydock Square475 m away | 51 m² | 76 m² | +25 m² +49% | 2022 |
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| Flat 106, The Halcyon, 6, Drydock Square475 m away | 51 m² | 76 m² | +25 m² +49% | 2022 |
|---|
| Flat 94, The Halcyon, 6, Drydock Square475 m away | 51 m² | 76 m² | +25 m² +49% | 2022 |
|---|
| 46, Devon Road904 m away | 65 m² | 90 m² | +25 m² +38% | 2022 |
|---|
| 45, Netherfield Gardens995 m away | 130 m² | 154 m² | +24 m² +18% | 2021 |
|---|
| 21, Rosslyn Road789 m away | 72 m² | 96 m² | +24 m² +33% | 2019 |
|---|
| 2, Kennedy Road923 m away | 56 m² | 80 m² | +24 m² +43% | 2017 |
|---|
| Flat 5, Central House, 14, Cambridge Road714 m away | 59 m² | 83 m² | +24 m² +41% | 2013 |
|---|
| Flat 5, Crick Court, Spring Place370 m away | 36 m² | 60 m² | +24 m² +67% | 2012 |
|---|
| 7, Gordon Road855 m away | 52 m² | 76 m² | +24 m² +46% | 2011 |
|---|
| 64, Wedderburn Road751 m away | 67 m² | 90 m² | +23 m² +34% | 2024 |
|---|
| Flat 103, The Halcyon, 6, Drydock Square475 m away | 51 m² | 74 m² | +23 m² +45% | 2022 |
|---|
| Flat 127, The Halcyon, 6, Drydock Square475 m away | 51 m² | 74 m² | +23 m² +45% | 2022 |
|---|
| 1503, Lemonade Building, 3, Arboretum Place465 m away | 39 m² | 62 m² | +23 m² +59% | 2020 |
|---|
| 804, Lemonade Building, 3, Arboretum Place465 m away | 61 m² | 84 m² | +23 m² +38% | 2019 |
|---|
| 21, Sussex Road963 m away | 79 m² | 102 m² | +23 m² +29% | 2018 |
|---|
| 177, Perth Road541 m away | 90 m² | 113 m² | +23 m² +26% | 2014 |
|---|
| 31, Sherwood Gardens954 m away | 86 m² | 109 m² | +23 m² +27% | 2011 |
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| 43, Waverley Gardens942 m away | 103 m² | 125 m² | +22 m² +21% | 2026 |
|---|
| 5, Whiting Avenue856 m away | 69 m² | 91 m² | +22 m² +32% | 2023 |
|---|
| 58, Sussex Road974 m away | 43 m² | 65 m² | +22 m² +51% | 2023 |
|---|
| Flat 107, The Halcyon, 6, Drydock Square475 m away | 51 m² | 73 m² | +22 m² +43% | 2022 |
|---|
| Flat 83, The Halcyon, 6, Drydock Square475 m away | 51 m² | 73 m² | +22 m² +43% | 2022 |
|---|
| Flat 95, The Halcyon, 6, Drydock Square475 m away | 51 m² | 73 m² | +22 m² +43% | 2022 |
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| Flat 131, The Halcyon, 6, Drydock Square475 m away | 51 m² | 73 m² | +22 m² +43% | 2022 |
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| 67a, East Street537 m away | 38 m² | 60 m² | +22 m² +58% | 2022 |
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| 115, The Shaftesburys147 m away | 49 m² | 71 m² | +22 m² +45% | 2021 |
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| 142, King Edwards Road576 m away | 67 m² | 89 m² | +22 m² +33% | 2020 |
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| 56, Westminster Gardens874 m away | 90 m² | 112 m² | +22 m² +24% | 2018 |
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| 52, Westbury Road410 m away | 100 m² | 122 m² | +22 m² +22% | 2014 |
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| 1305, Lemonade Building, 3, Arboretum Place465 m away | 61 m² | 82 m² | +21 m² +34% | 2025 |
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| Flat 31, Crick Court, Spring Place370 m away | 44 m² | 65 m² | +21 m² +48% | 2024 |
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| 57, Cecil Avenue851 m away | 112 m² | 133 m² | +21 m² +19% | 2015 |
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| 95, Cooke Street195 m away | 32 m² | 52 m² | +20 m² +63% | 2026 |
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| 16, Norfolk Road878 m away | 68 m² | 88 m² | +20 m² +29% | 2026 |
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| 37, Sherwood Gardens954 m away | 89 m² | 109 m² | +20 m² +22% | 2026 |
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| 8, Kendal Avenue973 m away | 64 m² | 84 m² | +20 m² +31% | 2025 |
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| Flat 89, The Halcyon, 6, Drydock Square475 m away | 53 m² | 73 m² | +20 m² +38% | 2022 |
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| 1, Kennedy Road905 m away | 76 m² | 96 m² | +20 m² +26% | 2021 |
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| Flat 47, Crick Court, Spring Place370 m away | 57 m² | 77 m² | +20 m² +35% | 2019 |
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| 19, Cranborne Road503 m away | 87 m² | 107 m² | +20 m² +23% | 2014 |
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| 21, Sparsholt Road866 m away | 72 m² | 92 m² | +20 m² +28% | 2014 |
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| 4, Gordon Road855 m away | 77 m² | 97 m² | +20 m² +26% | 2013 |
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| 21a, Ripple Road503 m away | 61 m² | 80 m² | +19 m² +31% | 2026 |
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| 33, Devon Road894 m away | 84 m² | 103 m² | +19 m² +23% | 2026 |
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| 31, Waverley Gardens942 m away | 75 m² | 94 m² | +19 m² +25% | 2023 |
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| 40, Suffolk Road766 m away | 74 m² | 93 m² | +19 m² +26% | 2020 |
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| 2, Norfolk Road878 m away | 85 m² | 104 m² | +19 m² +22% | 2019 |
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| 66, Suffolk Road766 m away | 74 m² | 93 m² | +19 m² +26% | 2018 |
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| 1b, Essex Road693 m away | 89 m² | 108 m² | +19 m² +21% | 2014 |
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| 7, St Awdrys Road592 m away | 91 m² | 109 m² | +18 m² +20% | 2026 |
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| 8, Salisbury Avenue785 m away | 87 m² | 105 m² | +18 m² +21% | 2026 |
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| 1, Wedderburn Road745 m away | 88 m² | 106 m² | +18 m² +20% | 2024 |
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| 47, Salisbury Avenue728 m away | 116 m² | 134 m² | +18 m² +16% | 2023 |
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| 28, Wedderburn Road751 m away | 62 m² | 80 m² | +18 m² +29% | 2022 |
|---|
| Flat 8, Hewetts Quay, 26 - 32, Abbey Road286 m away | 59 m² | 77 m² | +18 m² +31% | 2021 |
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| 284, Boundary Road514 m away | 82 m² | 100 m² | +18 m² +22% | 2021 |
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| 195, Morley Road443 m away | 61 m² | 79 m² | +18 m² +30% | 2020 |
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| 150, St Awdrys Road581 m away | 63 m² | 81 m² | +18 m² +29% | 2020 |
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| 7, Kendal Avenue973 m away | 79 m² | 97 m² | +18 m² +23% | 2015 |
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| 35, Sherwood Gardens954 m away | 83 m² | 100 m² | +17 m² +20% | 2026 |
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| 53, Craven Gardens976 m away | 85 m² | 102 m² | +17 m² +20% | 2025 |
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| 13, Netherfield Gardens995 m away | 108 m² | 125 m² | +17 m² +16% | 2025 |
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| 8, Netherfield Gardens995 m away | 76 m² | 93 m² | +17 m² +22% | 2024 |
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| Flat 92, The Halcyon, 6, Drydock Square475 m away | 51 m² | 68 m² | +17 m² +33% | 2022 |
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| Flat 122, The Halcyon, 6, Drydock Square475 m away | 51 m² | 68 m² | +17 m² +33% | 2022 |
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| Flat 80, The Halcyon, 6, Drydock Square475 m away | 51 m² | 68 m² | +17 m² +33% | 2022 |
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| Flat 134, The Halcyon, 6, Drydock Square475 m away | 51 m² | 68 m² | +17 m² +33% | 2022 |
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| 100, King Edwards Road479 m away | 68 m² | 85 m² | +17 m² +25% | 2022 |
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| 65a, East Street537 m away | 43 m² | 60 m² | +17 m² +40% | 2022 |
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| 79, Greenslade Road869 m away | 43 m² | 60 m² | +17 m² +40% | 2022 |
|---|
| 10, St Erkenwald Road491 m away | 108 m² | 125 m² | +17 m² +16% | 2020 |
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| 13, Gordon Road855 m away | 62 m² | 79 m² | +17 m² +27% | 2020 |
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| 64, Sherwood Gardens939 m away | 99 m² | 116 m² | +17 m² +17% | 2017 |
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| 49, Suffolk Road785 m away | 79 m² | 96 m² | +17 m² +22% | 2013 |
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| Flat 36, Crick Court, Spring Place370 m away | 59 m² | 75 m² | +16 m² +27% | 2026 |
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| 21, Somerby Road823 m away | 97 m² | 113 m² | +16 m² +16% | 2026 |
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| Flat 7, Hewetts Quay, 26 - 32, Abbey Road286 m away | 51 m² | 67 m² | +16 m² +31% | 2025 |
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| 508, Lemonade Building, 3, Arboretum Place465 m away | 61 m² | 77 m² | +16 m² +26% | 2025 |
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| 176, St Awdrys Road581 m away | 92 m² | 108 m² | +16 m² +17% | 2025 |
|---|
| 66, Devon Road904 m away | 65 m² | 81 m² | +16 m² +25% | 2025 |
|---|
| 1, Cuthberga Close730 m away | 35 m² | 51 m² | +16 m² +46% | 2024 |
|---|
| 121, Movers Lane831 m away | 86 m² | 102 m² | +16 m² +19% | 2024 |
|---|
| 22, Whiting Avenue856 m away | 74 m² | 90 m² | +16 m² +22% | 2023 |
|---|
| 5, Tomlins Orchard93 m away | 31 m² | 47 m² | +16 m² +52% | 2021 |
|---|
| 79, Wedderburn Road745 m away | 65 m² | 81 m² | +16 m² +25% | 2021 |
|---|
| 21, Netherfield Gardens995 m away | 81 m² | 97 m² | +16 m² +20% | 2020 |
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| 114, London Road655 m away | 55 m² | 71 m² | +16 m² +29% | 2019 |
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| 3, Wedderburn Road745 m away | 64 m² | 80 m² | +16 m² +25% | 2018 |
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| 64, Essex Road728 m away | 99 m² | 115 m² | +16 m² +16% | 2014 |
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| Flat 45, The Odeon, 22 - 30, Longbridge Road807 m away | 42 m² | 57 m² | +15 m² +36% | 2026 |
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| Flat 4, Forest Mews, 99, Sparsholt Road982 m away | 34 m² | 49 m² | +15 m² +44% | 2026 |
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| 18, Hardwicke Street0 m away | 69 m² | 84 m² | +15 m² +22% | 2025 |
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| Flat 43, Benedicts Wharf, Highbridge Road448 m away | 65 m² | 80 m² | +15 m² +23% | 2025 |
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| 290, Ripple Road789 m away | 41 m² | 56 m² | +15 m² +37% | 2025 |
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| Flat 14, Central House, 14, Cambridge Road714 m away | 79 m² | 94 m² | +15 m² +19% | 2024 |
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| Flat 23, Central House, 14, Cambridge Road714 m away | 48 m² | 63 m² | +15 m² +31% | 2024 |
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| 223, Gascoigne Road472 m away | 93 m² | 108 m² | +15 m² +16% | 2023 |
|---|
| 47, St Erkenwald Road491 m away | 77 m² | 92 m² | +15 m² +19% | 2023 |
|---|
| Flat 128, The Halcyon, 6, Drydock Square475 m away | 53 m² | 68 m² | +15 m² +28% | 2022 |
|---|
| 114, King Edwards Road521 m away | 72 m² | 87 m² | +15 m² +21% | 2022 |
|---|
| 37, St Awdrys Road592 m away | 78 m² | 93 m² | +15 m² +19% | 2022 |
|---|
| 142, Morley Road443 m away | 46 m² | 61 m² | +15 m² +33% | 2021 |
|---|
| 142a, Morley Road443 m away | 55 m² | 70 m² | +15 m² +27% | 2021 |
|---|
| 44, Sussex Road974 m away | 68 m² | 83 m² | +15 m² +22% | 2020 |
|---|
| 59, Tomlins Orchard159 m away | 73 m² | 88 m² | +15 m² +21% | 2015 |
|---|
| 35, Essex Road693 m away | 83 m² | 98 m² | +15 m² +18% | 2014 |
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| 26, Greenslade Road869 m away | 33 m² | 48 m² | +15 m² +45% | 2014 |
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