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 7JA
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 |
|---|---|---|---|---|
| 4a, Mansfield Road882 m away | 90 m² | 203 m² | +113 m² +126% | 2020 |
| 17, Reynolds Road990 m away | 110 m² | 218 m² | +108 m² +98% | 2016 |
| 5, Portland Avenue966 m away | 81 m² | 175 m² | +94 m² +116% | 2017 |
| 15, Gladys Road777 m away | 112 m² | 200 m² | +88 m² +79% | 2025 |
| 9, Amberley Drive798 m away | 86 m² | 172 m² | +86 m² +100% | 2023 |
| 368, Old Shoreham Road507 m away | 115 m² | 201 m² | +86 m² +75% | 2019 |
| 90, Holmes Avenue426 m away | 70 m² | 154 m² | +84 m² +120% | 2025 |
| 33, Coleman Avenue865 m away | 137 m² | 220 m² | +83 m² +61% | 2022 |
| 7, Windmill Close855 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.
| 92 m² |
| 174 m² |
| +82 m² +89% |
| 2022 |
| 52, Nevill Avenue893 m away | 116 m² | 196 m² | +80 m² +69% | 2020 |
|---|
| 30, Greenleas831 m away | 65 m² | 144 m² | +79 m² +122% | 2025 |
|---|
| 21, Portland Villas897 m away | 85 m² | 162 m² | +77 m² +91% | 2016 |
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| 38, Hogarth Road937 m away | 140 m² | 217 m² | +77 m² +55% | 2016 |
|---|
| 7, Ashlings Way685 m away | 82 m² | 157 m² | +75 m² +91% | 2015 |
|---|
| 214, Portland Road844 m away | 63 m² | 135 m² | +72 m² +114% | 2021 |
|---|
| 11, Portland Villas897 m away | 88 m² | 158 m² | +70 m² +80% | 2017 |
|---|
| 54, Fallowfield Crescent574 m away | 64 m² | 132 m² | +68 m² +106% | 2023 |
|---|
| 27, Jesmond Road833 m away | 109 m² | 177 m² | +68 m² +62% | 2023 |
|---|
| 31, Meadway Crescent594 m away | 65 m² | 133 m² | +68 m² +105% | 2020 |
|---|
| 79, Northease Drive923 m away | 70 m² | 137 m² | +67 m² +96% | 2025 |
|---|
| 26, Reynolds Road990 m away | 116 m² | 180 m² | +64 m² +55% | 2025 |
|---|
| 76, West Way767 m away | 92 m² | 156 m² | +64 m² +70% | 2016 |
|---|
| 33, Jesmond Road833 m away | 93 m² | 156 m² | +63 m² +68% | 2015 |
|---|
| 1, Fallowfield Close744 m away | 72 m² | 133 m² | +61 m² +85% | 2026 |
|---|
| 36, Rothbury Road873 m away | 98 m² | 159 m² | +61 m² +62% | 2024 |
|---|
| 8, Meadway Crescent610 m away | 57 m² | 118 m² | +61 m² +107% | 2023 |
|---|
| 25, Portland Villas897 m away | 114 m² | 175 m² | +61 m² +54% | 2020 |
|---|
| 61, Benfield Way951 m away | 120 m² | 181 m² | +61 m² +51% | 2015 |
|---|
| 84, Dale View680 m away | 57 m² | 117 m² | +60 m² +105% | 2020 |
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| 11, Poplar Avenue588 m away | 86 m² | 145 m² | +59 m² +69% | 2024 |
|---|
| 142, Elm Drive287 m away | 74 m² | 133 m² | +59 m² +80% | 2020 |
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| 108, Holmes Avenue633 m away | 123 m² | 182 m² | +59 m² +48% | 2015 |
|---|
| 11, Lullington Avenue750 m away | 92 m² | 150 m² | +58 m² +63% | 2021 |
|---|
| 3, Portland Villas897 m away | 104 m² | 162 m² | +58 m² +56% | 2012 |
|---|
| 78, Benfield Way997 m away | 68 m² | 125 m² | +57 m² +84% | 2024 |
|---|
| 326, Portland Road727 m away | 98 m² | 153 m² | +55 m² +56% | 2014 |
|---|
| 38, Portland Avenue820 m away | 109 m² | 163 m² | +54 m² +50% | 2021 |
|---|
| 27, Gleton Avenue745 m away | 54 m² | 108 m² | +54 m² +100% | 2017 |
|---|
| 23, Portland Avenue842 m away | 129 m² | 183 m² | +54 m² +42% | 2017 |
|---|
| 39, Dale View573 m away | 49 m² | 103 m² | +54 m² +110% | 2011 |
|---|
| 26, Aldrington Avenue791 m away | 82 m² | 135 m² | +53 m² +65% | 2026 |
|---|
| 57, Gleton Avenue745 m away | 88 m² | 141 m² | +53 m² +60% | 2023 |
|---|
| 65, Benfield Way951 m away | 109 m² | 162 m² | +53 m² +49% | 2022 |
|---|
| 49, Cranmer Avenue554 m away | 97 m² | 150 m² | +53 m² +55% | 2013 |
|---|
| 28, Hangleton Close655 m away | 61 m² | 113 m² | +52 m² +85% | 2025 |
|---|
| 38, Marmion Road823 m away | 102 m² | 153 m² | +51 m² +50% | 2026 |
|---|
| 50, Mansfield Road882 m away | 123 m² | 174 m² | +51 m² +41% | 2025 |
|---|
| 23, Hangleton Close655 m away | 62 m² | 112 m² | +50 m² +81% | 2025 |
|---|
| 161, Elm Drive0 m away | 90 m² | 140 m² | +50 m² +56% | 2024 |
|---|
| 31, Hangleton Close655 m away | 59 m² | 109 m² | +50 m² +85% | 2023 |
|---|
| 44, Payne Avenue662 m away | 53 m² | 102 m² | +49 m² +92% | 2025 |
|---|
| 37, Mansfield Road828 m away | 56 m² | 105 m² | +49 m² +88% | 2025 |
|---|
| 181, Hangleton Road543 m away | 49 m² | 98 m² | +49 m² +100% | 2016 |
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| 92, Hangleton Road624 m away | 100 m² | 148 m² | +48 m² +48% | 2026 |
|---|
| 16, Gleton Avenue757 m away | 54 m² | 102 m² | +48 m² +89% | 2023 |
|---|
| 1, Windmill Close855 m away | 60 m² | 108 m² | +48 m² +80% | 2023 |
|---|
| 104, Sunninghill Avenue817 m away | 82 m² | 130 m² | +48 m² +59% | 2022 |
|---|
| 36, Hangleton Way821 m away | 84 m² | 132 m² | +48 m² +57% | 2016 |
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| 411, Portland Road920 m away | 102 m² | 149 m² | +47 m² +46% | 2020 |
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| 64, Clarke Avenue851 m away | 76 m² | 122 m² | +46 m² +61% | 2022 |
|---|
| 38, Woodhouse Road841 m away | 64 m² | 110 m² | +46 m² +72% | 2014 |
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| 9, Elm Drive308 m away | 81 m² | 126 m² | +45 m² +56% | 2025 |
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| 18, Lullington Avenue750 m away | 98 m² | 143 m² | +45 m² +46% | 2022 |
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| 120, Poplar Avenue833 m away | 87 m² | 132 m² | +45 m² +52% | 2022 |
|---|
| 169, Old Shoreham Road823 m away | 103 m² | 148 m² | +45 m² +44% | 2021 |
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| 21, Glebe Villas941 m away | 108 m² | 153 m² | +45 m² +42% | 2016 |
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| 66, Nevill Avenue893 m away | 153 m² | 197 m² | +44 m² +29% | 2026 |
|---|
| 8, Margery Road624 m away | 93 m² | 137 m² | +44 m² +47% | 2025 |
|---|
| 42, Dale View550 m away | 56 m² | 100 m² | +44 m² +79% | 2022 |
|---|
| 19, Hangleton Way648 m away | 71 m² | 115 m² | +44 m² +62% | 2022 |
|---|
| 68, Dale View550 m away | 82 m² | 126 m² | +44 m² +54% | 2021 |
|---|
| 37, Ruskin Road849 m away | 100 m² | 144 m² | +44 m² +44% | 2019 |
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| 8, Tamworth Road983 m away | 102 m² | 145 m² | +43 m² +42% | 2026 |
|---|
| 48, Elm Drive132 m away | 84 m² | 127 m² | +43 m² +51% | 2024 |
|---|
| 69, Northease Drive923 m away | 64 m² | 107 m² | +43 m² +67% | 2024 |
|---|
| 55, Dale View680 m away | 57 m² | 100 m² | +43 m² +75% | 2015 |
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| 31, Bolsover Road615 m away | 59 m² | 102 m² | +43 m² +73% | 2014 |
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| 23, Rowan Avenue145 m away | 74 m² | 117 m² | +43 m² +58% | 2013 |
|---|
| 3, Molesworth Street913 m away | 89 m² | 131 m² | +42 m² +47% | 2026 |
|---|
| 13, Hangleton Way648 m away | 65 m² | 107 m² | +42 m² +65% | 2023 |
|---|
| 3, Woodhouse Road874 m away | 135 m² | 177 m² | +42 m² +31% | 2023 |
|---|
| 51, Nevill Avenue903 m away | 123 m² | 165 m² | +42 m² +34% | 2023 |
|---|
| 194, Elm Drive287 m away | 75 m² | 117 m² | +42 m² +56% | 2022 |
|---|
| 50, Benfield Way997 m away | 172 m² | 214 m² | +42 m² +24% | 2022 |
|---|
| 83, Rowan Avenue320 m away | 81 m² | 123 m² | +42 m² +52% | 2020 |
|---|
| 21, Old School Place408 m away | 87 m² | 129 m² | +42 m² +48% | 2020 |
|---|
| 6, Nevill Avenue893 m away | 100 m² | 142 m² | +42 m² +42% | 2019 |
|---|
| 39, Meadway Crescent594 m away | 109 m² | 151 m² | +42 m² +39% | 2016 |
|---|
| 340, Portland Road727 m away | 96 m² | 137 m² | +41 m² +43% | 2026 |
|---|
| 40, Sunninghill Avenue817 m away | 87 m² | 128 m² | +41 m² +47% | 2026 |
|---|
| Studio Workshop, Rear Of 49, Elm Drive0 m away | 66 m² | 106 m² | +40 m² +61% | 2025 |
|---|
| 143, Hangleton Road543 m away | 70 m² | 110 m² | +40 m² +57% | 2021 |
|---|
| 158, Elm Drive287 m away | 83 m² | 123 m² | +40 m² +48% | 2015 |
|---|
| 179, Old Shoreham Road823 m away | 55 m² | 95 m² | +40 m² +73% | 2013 |
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| 33, Amesbury Crescent991 m away | 231 m² | 270 m² | +39 m² +17% | 2025 |
|---|
| 18, Amherst Crescent709 m away | 82 m² | 121 m² | +39 m² +48% | 2022 |
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| 72, Tamworth Road866 m away | 96 m² | 135 m² | +39 m² +41% | 2022 |
|---|
| 11, Lennox Road752 m away | 94 m² | 133 m² | +39 m² +41% | 2021 |
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| 17, Poplar Avenue588 m away | 90 m² | 129 m² | +39 m² +43% | 2020 |
|---|
| 32, Meadway Crescent610 m away | 68 m² | 107 m² | +39 m² +57% | 2020 |
|---|
| 40, Marmion Road823 m away | 101 m² | 140 m² | +39 m² +39% | 2020 |
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| 70, Marmion Road823 m away | 101 m² | 140 m² | +39 m² +39% | 2014 |
|---|
| 31, Portland Villas897 m away | 138 m² | 177 m² | +39 m² +28% | 2012 |
|---|
| 5, Applesham Avenue566 m away | 86 m² | 124 m² | +38 m² +44% | 2023 |
|---|
| 18, Aldrington Avenue791 m away | 95 m² | 133 m² | +38 m² +40% | 2023 |
|---|
| 82, Tamworth Road866 m away | 95 m² | 133 m² | +38 m² +40% | 2022 |
|---|
| 59, Tamworth Road866 m away | 92 m² | 130 m² | +38 m² +41% | 2018 |
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| 8, Linton Road737 m away | 51 m² | 89 m² | +38 m² +75% | 2015 |
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| 25, Elm Drive308 m away | 87 m² | 124 m² | +37 m² +43% | 2026 |
|---|
| 22, Kendal Road789 m away | 93 m² | 130 m² | +37 m² +40% | 2023 |
|---|
| 101, Elm Drive0 m away | 77 m² | 114 m² | +37 m² +48% | 2020 |
|---|
| 163, Nevill Avenue486 m away | 106 m² | 143 m² | +37 m² +35% | 2020 |
|---|
| 4, Lennox Road752 m away | 87 m² | 124 m² | +37 m² +43% | 2018 |
|---|
| 56, Stoneham Road782 m away | 112 m² | 148 m² | +36 m² +32% | 2024 |
|---|
| 39, St Heliers Avenue890 m away | 97 m² | 133 m² | +36 m² +37% | 2024 |
|---|
| 50, Gleton Avenue757 m away | 58 m² | 94 m² | +36 m² +62% | 2023 |
|---|
| 48, Portland Villas901 m away | 123 m² | 159 m² | +36 m² +29% | 2023 |
|---|
| 43, Stoneham Road782 m away | 90 m² | 126 m² | +36 m² +40% | 2021 |
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| 62, Fallowfield Crescent574 m away | 61 m² | 97 m² | +36 m² +59% | 2020 |
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| 4, Lullington Avenue750 m away | 97 m² | 133 m² | +36 m² +37% | 2019 |
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| 19, Payne Avenue745 m away | 92 m² | 128 m² | +36 m² +39% | 2018 |
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| 4, Holmes Avenue419 m away | 90 m² | 126 m² | +36 m² +40% | 2015 |
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| 110, Hallyburton Road859 m away | 105 m² | 140 m² | +35 m² +33% | 2026 |
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| 3, Mortimer Road896 m away | 99 m² | 134 m² | +35 m² +35% | 2025 |
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| 48, Payne Avenue662 m away | 94 m² | 129 m² | +35 m² +37% | 2022 |
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| 93, Applesham Avenue884 m away | 87 m² | 121 m² | +34 m² +39% | 2024 |
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| 154, Hangleton Road511 m away | 126 m² | 160 m² | +34 m² +27% | 2023 |
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| 11, Milnthorpe Road634 m away | 70 m² | 104 m² | +34 m² +49% | 2022 |
|---|
| 79, Hangleton Way855 m away | 119 m² | 153 m² | +34 m² +29% | 2021 |
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| 13, Chelston Avenue932 m away | 116 m² | 150 m² | +34 m² +29% | 2020 |
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| 259, Old Shoreham Road969 m away | 147 m² | 181 m² | +34 m² +23% | 2018 |
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| 86, Hangleton Road624 m away | 96 m² | 130 m² | +34 m² +35% | 2016 |
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| 46, Fallowfield Crescent574 m away | 61 m² | 95 m² | +34 m² +56% | 2015 |
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| 61, Dale View680 m away | 64 m² | 98 m² | +34 m² +53% | 2014 |
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| 23, St Heliers Avenue890 m away | 111 m² | 145 m² | +34 m² +31% | 2012 |
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| 109, Hangleton Road543 m away | 104 m² | 137 m² | +33 m² +32% | 2025 |
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| 4, Tamworth Road983 m away | 98 m² | 131 m² | +33 m² +34% | 2022 |
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| 26, Hogarth Road937 m away | 127 m² | 160 m² | +33 m² +26% | 2020 |
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| 17, Acacia Avenue359 m away | 87 m² | 120 m² | +33 m² +38% | 2019 |
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| 15, St Heliers Avenue890 m away | 100 m² | 133 m² | +33 m² +33% | 2018 |
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| 366, Portland Road762 m away | 92 m² | 125 m² | +33 m² +36% | 2015 |
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| 3, Suffolk Street942 m away | 92 m² | 124 m² | +32 m² +35% | 2026 |
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| 101, Nevill Avenue648 m away | 133 m² | 165 m² | +32 m² +24% | 2024 |
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| 22, Elm Drive132 m away | 98 m² | 130 m² | +32 m² +33% | 2023 |
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| 7, Mortimer Road896 m away | 94 m² | 126 m² | +32 m² +34% | 2023 |
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| 32, Linton Road737 m away | 86 m² | 118 m² | +32 m² +37% | 2022 |
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| 9, Kendal Road789 m away | 93 m² | 125 m² | +32 m² +34% | 2021 |
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| 21, Applesham Avenue566 m away | 90 m² | 122 m² | +32 m² +36% | 2016 |
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| 36, Applesham Avenue743 m away | 102 m² | 133 m² | +31 m² +30% | 2026 |
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| 7, Greenleas831 m away | 73 m² | 104 m² | +31 m² +42% | 2026 |
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| 19, Milnthorpe Road634 m away | 71 m² | 102 m² | +31 m² +44% | 2025 |
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| 41, Payne Avenue662 m away | 102 m² | 133 m² | +31 m² +30% | 2024 |
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| 28, Bolsover Road608 m away | 73 m² | 104 m² | +31 m² +42% | 2022 |
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| 61, Bolsover Road615 m away | 73 m² | 104 m² | +31 m² +42% | 2021 |
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| 46, Grange Road667 m away | 62 m² | 93 m² | +31 m² +50% | 2019 |
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| 3a, Portland Avenue966 m away | 61 m² | 92 m² | +31 m² +51% | 2013 |
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| 14, Tudor Close539 m away | 94 m² | 124 m² | +30 m² +32% | 2026 |
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| 10, Alpine Road693 m away | 85 m² | 115 m² | +30 m² +35% | 2026 |
|---|
| 50, Rowan Avenue144 m away | 89 m² | 119 m² | +30 m² +34% | 2024 |
|---|
| 7, Dallington Road628 m away | 87 m² | 117 m² | +30 m² +34% | 2024 |
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| 17, Milnthorpe Road634 m away | 72 m² | 102 m² | +30 m² +42% | 2024 |
|---|
| 99, Nevill Avenue648 m away | 147 m² | 177 m² | +30 m² +20% | 2024 |
|---|
| 215, Old Shoreham Road578 m away | 113 m² | 143 m² | +30 m² +27% | 2023 |
|---|
| 5, Egmont Road432 m away | 86 m² | 116 m² | +30 m² +35% | 2022 |
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| 7, Suffolk Street942 m away | 89 m² | 119 m² | +30 m² +34% | 2019 |
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| 19, Linton Road737 m away | 90 m² | 120 m² | +30 m² +33% | 2016 |
|---|
| 33, Mortimer Road896 m away | 81 m² | 110 m² | +29 m² +36% | 2026 |
|---|
| 44, Bolsover Road608 m away | 76 m² | 105 m² | +29 m² +38% | 2024 |
|---|
| 26, Wayfield Avenue230 m away | 71 m² | 100 m² | +29 m² +41% | 2021 |
|---|
| 29, Linton Road737 m away | 93 m² | 122 m² | +29 m² +31% | 2020 |
|---|
| 54, Rutland Road961 m away | 94 m² | 123 m² | +29 m² +31% | 2015 |
|---|
| 92a, Fallowfield Crescent726 m away | 62 m² | 91 m² | +29 m² +47% | 2010 |
|---|
| 49, Woodhouse Road874 m away | 108 m² | 136 m² | +28 m² +26% | 2026 |
|---|
| 266, Hangleton Road638 m away | 120 m² | 148 m² | +28 m² +23% | 2025 |
|---|
| 86, Tamworth Road866 m away | 94 m² | 122 m² | +28 m² +30% | 2025 |
|---|
| 61, Nevill Avenue903 m away | 139 m² | 167 m² | +28 m² +20% | 2025 |
|---|
| 36, Linton Road737 m away | 83 m² | 111 m² | +28 m² +34% | 2024 |
|---|
| 59, Portland Villas897 m away | 103 m² | 131 m² | +28 m² +27% | 2024 |
|---|
| 1, Acacia Avenue359 m away | 101 m² | 129 m² | +28 m² +28% | 2022 |
|---|
| 2, Hangleton Gardens590 m away | 67 m² | 95 m² | +28 m² +42% | 2022 |
|---|
| 31, Applesham Avenue743 m away | 81 m² | 109 m² | +28 m² +35% | 2021 |
|---|
| 54, Rowan Avenue144 m away | 87 m² | 115 m² | +28 m² +32% | 2019 |
|---|
| 356, Portland Road727 m away | 129 m² | 157 m² | +28 m² +22% | 2018 |
|---|
| 20, St Heliers Avenue890 m away | 125 m² | 153 m² | +28 m² +22% | 2018 |
|---|
| 4, Grange Road667 m away | 93 m² | 121 m² | +28 m² +30% | 2014 |
|---|
| 102, Rowan Avenue320 m away | 69 m² | 96 m² | +27 m² +39% | 2023 |
|---|
| 30, Alpine Road693 m away | 90 m² | 117 m² | +27 m² +30% | 2023 |
|---|
| 18, Amberley Drive798 m away | 82 m² | 109 m² | +27 m² +33% | 2023 |
|---|
| 88, Rutland Road961 m away | 91 m² | 118 m² | +27 m² +30% | 2023 |
|---|
| 53, Benfield Way951 m away | 161 m² | 188 m² | +27 m² +17% | 2019 |
|---|
| 97, Elm Drive0 m away | 85 m² | 112 m² | +27 m² +32% | 2018 |
|---|
| 25, Tamworth Road983 m away | 99 m² | 125 m² | +26 m² +26% | 2026 |
|---|
| 39, Rowan Avenue145 m away | 73 m² | 99 m² | +26 m² +36% | 2025 |
|---|
| 11, Tudor Close539 m away | 101 m² | 127 m² | +26 m² +26% | 2025 |
|---|
| 17, Greenleas831 m away | 68 m² | 94 m² | +26 m² +38% | 2025 |
|---|
| 66, Elm Drive132 m away | 81 m² | 107 m² | +26 m² +32% | 2024 |
|---|
| 18, Maple Gardens299 m away | 85 m² | 111 m² | +26 m² +31% | 2023 |
|---|
| 281, Old Shoreham Road969 m away | 90 m² | 116 m² | +26 m² +29% | 2023 |
|---|
| 80, Rutland Road961 m away | 93 m² | 119 m² | +26 m² +28% | 2021 |
|---|
| 12, Molesworth Street913 m away | 89 m² | 115 m² | +26 m² +29% | 2020 |
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