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 WD24 7ER
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 |
|---|---|---|---|---|
| 72, Tudor Avenue522 m away | 87 m² | 178 m² | +91 m² +105% | 2025 |
| 174, Mill Way837 m away | 80 m² | 165 m² | +85 m² +106% | 2021 |
| 48, Munden Grove188 m away | 75 m² | 153 m² | +78 m² +104% | 2019 |
| 181, Bushey Mill Lane294 m away | 72 m² | 143 m² | +71 m² +99% | 2022 |
| 57, Douglas Avenue733 m away | 50 m² | 121 m² | +71 m² +142% | 2018 |
| 58, Tudor Avenue522 m away | 90 m² | 160 m² | +70 m² +78% | 2013 |
| 15, Osborne Road533 m away | 94 m² | 162 m² | +68 m² +72% | 2022 |
| 70, Woodmere Avenue643 m away | 88 m² | 154 m² | +66 m² +75% | 2023 |
| 323, St Albans Road969 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.
| 71 m² |
| 137 m² |
| +66 m² +93% |
| 2014 |
| 85, Bushey Mill Lane633 m away | 84 m² | 149 m² | +65 m² +77% | 2026 |
|---|
| 404, St Albans Road922 m away | 91 m² | 156 m² | +65 m² +71% | 2020 |
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| 62, Leavesden Road941 m away | 90 m² | 150 m² | +60 m² +67% | 2026 |
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| 53, Eastfield Avenue315 m away | 69 m² | 129 m² | +60 m² +87% | 2022 |
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| 34, Tudor Avenue522 m away | 96 m² | 154 m² | +58 m² +60% | 2024 |
|---|
| 28, Tudor Drive503 m away | 70 m² | 128 m² | +58 m² +83% | 2020 |
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| 24, Hillrise Avenue502 m away | 51 m² | 107 m² | +56 m² +110% | 2025 |
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| 46, Hillrise Avenue502 m away | 54 m² | 110 m² | +56 m² +104% | 2010 |
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| 51, Westfield Avenue321 m away | 88 m² | 141 m² | +53 m² +60% | 2026 |
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| 7, Hibbert Avenue108 m away | 114 m² | 164 m² | +50 m² +44% | 2026 |
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| 46, Leavesden Road882 m away | 71 m² | 121 m² | +50 m² +70% | 2022 |
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| 15, Colne Way844 m away | 136 m² | 186 m² | +50 m² +37% | 2021 |
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| 111, Balmoral Road74 m away | 87 m² | 136 m² | +49 m² +56% | 2022 |
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| 4, Halsey Place845 m away | 87 m² | 136 m² | +49 m² +56% | 2022 |
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| 27, Brixton Road678 m away | 72 m² | 120 m² | +48 m² +67% | 2026 |
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| 62, Copsewood Road966 m away | 93 m² | 141 m² | +48 m² +52% | 2023 |
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| 62, Woodmere Avenue643 m away | 52 m² | 100 m² | +48 m² +92% | 2019 |
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| 402, Bushey Mill Lane791 m away | 120 m² | 168 m² | +48 m² +40% | 2019 |
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| 56, Parker Street982 m away | 71 m² | 118 m² | +47 m² +66% | 2014 |
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| 64, Woodmere Avenue643 m away | 53 m² | 99 m² | +46 m² +87% | 2025 |
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| 42, Knutsford Avenue100 m away | 84 m² | 130 m² | +46 m² +55% | 2022 |
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| 100, Leavesden Road941 m away | 78 m² | 124 m² | +46 m² +59% | 2022 |
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| 75, Victoria Road824 m away | 46 m² | 92 m² | +46 m² +100% | 2020 |
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| Flat 11, Eton House, Anglian Close899 m away | 55 m² | 99 m² | +44 m² +80% | 2026 |
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| 199, Sandringham Road854 m away | 76 m² | 119 m² | +43 m² +57% | 2026 |
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| 161, Balmoral Road199 m away | 56 m² | 99 m² | +43 m² +77% | 2022 |
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| 44, Balmoral Road519 m away | 78 m² | 121 m² | +43 m² +55% | 2022 |
|---|
| 167, Balmoral Road199 m away | 87 m² | 129 m² | +42 m² +48% | 2021 |
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| 168, Balmoral Road135 m away | 67 m² | 108 m² | +41 m² +61% | 2026 |
|---|
| 4, Munden Grove188 m away | 74 m² | 115 m² | +41 m² +55% | 2026 |
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| 9, Maude Crescent796 m away | 91 m² | 131 m² | +40 m² +44% | 2022 |
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| Apartment 2, 226 - 228, St Albans Road634 m away | 72 m² | 111 m² | +39 m² +54% | 2011 |
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| 161, Sandringham Road854 m away | 78 m² | 115 m² | +37 m² +47% | 2024 |
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| 105, Bushey Mill Crescent905 m away | 86 m² | 123 m² | +37 m² +43% | 2020 |
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| 56, Northfield Gardens717 m away | 117 m² | 153 m² | +36 m² +31% | 2023 |
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| Flat 47, College Yard, 5, Gammons Lane909 m away | 106 m² | 142 m² | +36 m² +34% | 2020 |
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| 36, St Georges Road836 m away | 116 m² | 152 m² | +36 m² +31% | 2016 |
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| 21, Eastfield Avenue315 m away | 49 m² | 84 m² | +35 m² +71% | 2026 |
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| 70, Norfolk Avenue270 m away | 88 m² | 123 m² | +35 m² +40% | 2023 |
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| 2c, Bradshaw Road559 m away | 90 m² | 125 m² | +35 m² +39% | 2021 |
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| 61, Douglas Avenue733 m away | 68 m² | 103 m² | +35 m² +51% | 2019 |
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| 52, Bushey Mill Lane782 m away | 87 m² | 122 m² | +35 m² +40% | 2018 |
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| 107, Mead Way902 m away | 98 m² | 132 m² | +34 m² +35% | 2026 |
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| 88, Bradshaw Road468 m away | 87 m² | 121 m² | +34 m² +39% | 2024 |
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| 24, Eastfield Avenue297 m away | 77 m² | 111 m² | +34 m² +44% | 2019 |
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| Flat 3, College Yard, 5, Gammons Lane909 m away | 34 m² | 67 m² | +33 m² +97% | 2021 |
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| 130, Balmoral Road196 m away | 51 m² | 83 m² | +32 m² +63% | 2018 |
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| 36, Bushey Mill Lane782 m away | 92 m² | 124 m² | +32 m² +35% | 2017 |
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| Flat 23, Elizabeth House, Exeter Close908 m away | 50 m² | 81 m² | +31 m² +62% | 2024 |
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| 82, Leavesden Road941 m away | 73 m² | 104 m² | +31 m² +42% | 2021 |
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| 17, Carisbrooke Avenue400 m away | 48 m² | 79 m² | +31 m² +65% | 2015 |
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| 25, Devon Road151 m away | 89 m² | 120 m² | +31 m² +35% | 2014 |
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| 60, Parkgate Road661 m away | 84 m² | 115 m² | +31 m² +37% | 2013 |
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| 6, Munden Grove188 m away | 94 m² | 124 m² | +30 m² +32% | 2025 |
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| 160, Mill Way837 m away | 71 m² | 101 m² | +30 m² +42% | 2024 |
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| 4, Osborne Road533 m away | 81 m² | 111 m² | +30 m² +37% | 2020 |
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| 62, Victoria Road827 m away | 86 m² | 115 m² | +29 m² +34% | 2025 |
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| 73, Bushey Mill Lane686 m away | 84 m² | 113 m² | +29 m² +35% | 2024 |
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| 6, Raphael Drive886 m away | 78 m² | 107 m² | +29 m² +37% | 2024 |
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| 136, Balmoral Road196 m away | 83 m² | 112 m² | +29 m² +35% | 2021 |
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| 82, Tudor Avenue522 m away | 92 m² | 121 m² | +29 m² +32% | 2021 |
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| Flat 21, Elizabeth House, Exeter Close908 m away | 66 m² | 95 m² | +29 m² +44% | 2021 |
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| 117, Mill Way797 m away | 106 m² | 135 m² | +29 m² +27% | 2020 |
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| 53, Neston Road770 m away | 73 m² | 102 m² | +29 m² +40% | 2019 |
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| 26, St Georges Road836 m away | 83 m² | 112 m² | +29 m² +35% | 2016 |
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| 211, Sandringham Road854 m away | 75 m² | 103 m² | +28 m² +37% | 2026 |
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| 40, Hatfield Road680 m away | 79 m² | 107 m² | +28 m² +35% | 2017 |
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| 67, Sandown Road501 m away | 68 m² | 95 m² | +27 m² +40% | 2023 |
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| 61, Tudor Drive509 m away | 94 m² | 121 m² | +27 m² +29% | 2021 |
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| 34, Cromer Road530 m away | 92 m² | 119 m² | +27 m² +29% | 2017 |
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| 130, Bushey Mill Lane342 m away | 85 m² | 111 m² | +26 m² +31% | 2026 |
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| 91, Bushey Mill Lane633 m away | 81 m² | 107 m² | +26 m² +32% | 2023 |
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| 236a, St Albans Road634 m away | 88 m² | 114 m² | +26 m² +30% | 2022 |
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| 454, St Albans Road922 m away | 73 m² | 99 m² | +26 m² +36% | 2022 |
|---|
| Flat 49, College Yard, 5, Gammons Lane909 m away | 35 m² | 61 m² | +26 m² +74% | 2020 |
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| 30, Douglas Avenue695 m away | 78 m² | 104 m² | +26 m² +33% | 2019 |
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| 20, Bedford Street926 m away | 53 m² | 79 m² | +26 m² +49% | 2018 |
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| 28, Parkgate Road637 m away | 85 m² | 110 m² | +25 m² +29% | 2024 |
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| 28, Nicholas Close932 m away | 85 m² | 110 m² | +25 m² +29% | 2023 |
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| 59, Balmoral Road309 m away | 65 m² | 90 m² | +25 m² +38% | 2022 |
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| 66, Norfolk Avenue270 m away | 108 m² | 133 m² | +25 m² +23% | 2020 |
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| 1, Bruce Grove587 m away | 55 m² | 80 m² | +25 m² +45% | 2016 |
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| Flat 23, College Yard, 5, Gammons Lane909 m away | 35 m² | 59 m² | +24 m² +69% | 2026 |
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| 4, Fuller Road948 m away | 87 m² | 111 m² | +24 m² +28% | 2026 |
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| 95, Leavesden Road929 m away | 64 m² | 88 m² | +24 m² +38% | 2025 |
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| 47, Southfield Avenue316 m away | 55 m² | 79 m² | +24 m² +44% | 2023 |
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| 104, Bradshaw Road468 m away | 76 m² | 100 m² | +24 m² +32% | 2023 |
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| 4, Eastfield Avenue234 m away | 58 m² | 82 m² | +24 m² +41% | 2022 |
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| 54, Norbury Avenue743 m away | 105 m² | 129 m² | +24 m² +23% | 2022 |
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| 92, Westfield Avenue156 m away | 69 m² | 92 m² | +23 m² +33% | 2026 |
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| 41, Parkgate Road672 m away | 77 m² | 100 m² | +23 m² +30% | 2026 |
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| 79, Northfield Gardens780 m away | 82 m² | 105 m² | +23 m² +28% | 2023 |
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| 164a, St Albans Road690 m away | 77 m² | 100 m² | +23 m² +30% | 2019 |
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| 78, Leavesden Road941 m away | 73 m² | 95 m² | +22 m² +30% | 2024 |
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| 78, Judge Street843 m away | 67 m² | 89 m² | +22 m² +33% | 2021 |
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| 292, St Albans Road631 m away | 138 m² | 160 m² | +22 m² +16% | 2016 |
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| 33, Southfield Avenue316 m away | 55 m² | 76 m² | +21 m² +38% | 2022 |
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| 5, St Georges Road930 m away | 66 m² | 87 m² | +21 m² +32% | 2021 |
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| Flat 12, Andrew Reed Court, Keele Close931 m away | 36 m² | 57 m² | +21 m² +58% | 2020 |
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| Flat 5, College Yard, 5, Gammons Lane909 m away | 41 m² | 62 m² | +21 m² +51% | 2012 |
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| 52, Carisbrooke Avenue400 m away | 105 m² | 125 m² | +20 m² +19% | 2026 |
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| 108, Southfield Avenue354 m away | 80 m² | 100 m² | +20 m² +25% | 2025 |
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| 5, Stanmore Road936 m away | 62 m² | 82 m² | +20 m² +32% | 2024 |
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| 51, Mill Way946 m away | 80 m² | 100 m² | +20 m² +25% | 2023 |
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| Flat 37, Elizabeth House, Exeter Close908 m away | 44 m² | 64 m² | +20 m² +45% | 2021 |
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| Flat 6, College Yard, 5, Gammons Lane909 m away | 42 m² | 62 m² | +20 m² +48% | 2020 |
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| 20, Byron Avenue293 m away | 27 m² | 46 m² | +19 m² +70% | 2025 |
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| Flat 13, Lancing House, Hallam Close896 m away | 29 m² | 48 m² | +19 m² +66% | 2025 |
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| 95, Copsewood Road975 m away | 71 m² | 90 m² | +19 m² +27% | 2024 |
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| 28, Judge Street843 m away | 48 m² | 67 m² | +19 m² +40% | 2021 |
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| 19, Monica Close880 m away | 85 m² | 104 m² | +19 m² +22% | 2021 |
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| 34, Hatfield Road680 m away | 48 m² | 67 m² | +19 m² +40% | 2019 |
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| 120, Balmoral Road196 m away | 51 m² | 69 m² | +18 m² +35% | 2023 |
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| 59, Leavesden Road876 m away | 68 m² | 86 m² | +18 m² +26% | 2023 |
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| Flat 16, Lancing House, Hallam Close896 m away | 43 m² | 61 m² | +18 m² +42% | 2022 |
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| 10, Salisbury Road631 m away | 68 m² | 86 m² | +18 m² +26% | 2019 |
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| 36, Yarmouth Road557 m away | 79 m² | 97 m² | +18 m² +23% | 2016 |
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| 6, Fuller Road948 m away | 94 m² | 112 m² | +18 m² +19% | 2014 |
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| 13, Sandringham Road588 m away | 62 m² | 79 m² | +17 m² +27% | 2026 |
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| 25, Brixton Road678 m away | 85 m² | 102 m² | +17 m² +20% | 2025 |
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| 174, Norbury Avenue630 m away | 53 m² | 70 m² | +17 m² +32% | 2022 |
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| Flat 3, Elizabeth House, Anglian Close908 m away | 36 m² | 53 m² | +17 m² +47% | 2022 |
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| 71, Balmoral Road309 m away | 62 m² | 79 m² | +17 m² +27% | 2019 |
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| Flat 14, Lancing House, Hallam Close896 m away | 30 m² | 47 m² | +17 m² +57% | 2018 |
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| 22, Bruce Grove583 m away | 74 m² | 91 m² | +17 m² +23% | 2016 |
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| 212a, St Albans Road634 m away | 84 m² | 101 m² | +17 m² +20% | 2016 |
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| 17, Balmoral Road539 m away | 72 m² | 88 m² | +16 m² +22% | 2026 |
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| 45, The Harebreaks984 m away | 86 m² | 102 m² | +16 m² +19% | 2026 |
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| Flat 9, 188 - 196, St Albans Road690 m away | 50 m² | 66 m² | +16 m² +32% | 2024 |
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| 127, Mill Way797 m away | 83 m² | 99 m² | +16 m² +19% | 2023 |
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| 41, Sandringham Road588 m away | 90 m² | 106 m² | +16 m² +18% | 2022 |
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| 248a, St Albans Road615 m away | 90 m² | 106 m² | +16 m² +18% | 2022 |
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| 84, Balmoral Road196 m away | 73 m² | 89 m² | +16 m² +22% | 2021 |
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| 3, Victoria Road824 m away | 67 m² | 83 m² | +16 m² +24% | 2020 |
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| Flat 4, College Yard, 5, Gammons Lane909 m away | 57 m² | 73 m² | +16 m² +28% | 2020 |
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| 99, Sandringham Road664 m away | 77 m² | 92 m² | +15 m² +19% | 2025 |
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| 370a, St Albans Road734 m away | 50 m² | 65 m² | +15 m² +30% | 2025 |
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| 20, Hatfield Road680 m away | 53 m² | 68 m² | +15 m² +28% | 2024 |
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| 90, Balmoral Road196 m away | 50 m² | 65 m² | +15 m² +30% | 2023 |
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| 29a, Lowestoft Road815 m away | 51 m² | 66 m² | +15 m² +29% | 2023 |
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| 271a, St Albans Road647 m away | 59 m² | 74 m² | +15 m² +25% | 2020 |
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| 11a, Bruce Grove587 m away | 96 m² | 111 m² | +15 m² +16% | 2018 |
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| 2a, Hatfield Road680 m away | 79 m² | 94 m² | +15 m² +19% | 2018 |
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| 20, Stanmore Road936 m away | 40 m² | 55 m² | +15 m² +38% | 2009 |
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