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 W7 2AH
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 |
|---|---|---|---|---|
| 295, Boston Road127 m away | 118 m² | 240 m² | +122 m² +103% | 2021 |
| 90, Southdown Avenue152 m away | 113 m² | 215 m² | +102 m² +90% | 2021 |
| 239, Boston Road233 m away | 114 m² | 211 m² | +97 m² +85% | 2023 |
| 49, Burnham Way634 m away | 99 m² | 191 m² | +92 m² +93% | 2023 |
| 9, St Kilda Road766 m away | 128 m² | 217 m² | +89 m² +70% | 2017 |
| 21, Erlesmere Gardens365 m away | 73 m² | 159 m² | +86 m² +118% | 2020 |
| 2, Cawdor Crescent558 m away | 150 m² | 230 m² | +80 m² +53% | 2026 |
| 91, Manton Avenue426 m away | 90 m² | 168 m² | +78 m² +87% | 2022 |
| 39, St Dunstans Road812 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.
| 87 m² |
| 165 m² |
| +78 m² +90% |
| 2015 |
| 142, Boston Manor Road976 m away | 119 m² | 196 m² | +77 m² +65% | 2017 |
|---|
| 159, Clitherow Avenue443 m away | 111 m² | 185 m² | +74 m² +67% | 2021 |
|---|
| 47, Woodstock Avenue359 m away | 108 m² | 181 m² | +73 m² +68% | 2025 |
|---|
| 31, Mayfield Avenue828 m away | 87 m² | 156 m² | +69 m² +79% | 2022 |
|---|
| 20, Coldershaw Road884 m away | 58 m² | 126 m² | +68 m² +117% | 2023 |
|---|
| 65, Seward Road538 m away | 108 m² | 175 m² | +67 m² +62% | 2024 |
|---|
| 42, St Kilda Road743 m away | 116 m² | 183 m² | +67 m² +58% | 2022 |
|---|
| 136, Midhurst Road492 m away | 96 m² | 161 m² | +65 m² +68% | 2022 |
|---|
| 8, Boston Vale584 m away | 102 m² | 166 m² | +64 m² +63% | 2025 |
|---|
| 11, Wyndham Road633 m away | 87 m² | 151 m² | +64 m² +74% | 2009 |
|---|
| 30, Croft Gardens604 m away | 138 m² | 199 m² | +61 m² +44% | 2022 |
|---|
| 76, Cumberland Road470 m away | 99 m² | 160 m² | +61 m² +62% | 2020 |
|---|
| 43, Seward Road630 m away | 53 m² | 114 m² | +61 m² +115% | 2014 |
|---|
| 69, Leighton Road721 m away | 125 m² | 186 m² | +61 m² +49% | 2014 |
|---|
| 101, Midhurst Road523 m away | 56 m² | 116 m² | +60 m² +107% | 2010 |
|---|
| 8, Cawdor Crescent558 m away | 114 m² | 173 m² | +59 m² +52% | 2017 |
|---|
| 18, Studley Grange Road615 m away | 80 m² | 139 m² | +59 m² +74% | 2015 |
|---|
| 24, Manton Avenue451 m away | 89 m² | 147 m² | +58 m² +65% | 2026 |
|---|
| 11, Chalfont Way599 m away | 74 m² | 132 m² | +58 m² +78% | 2024 |
|---|
| 98, Oaklands Road639 m away | 43 m² | 101 m² | +58 m² +135% | 2023 |
|---|
| 1, Cardiff Road191 m away | 91 m² | 149 m² | +58 m² +64% | 2022 |
|---|
| 2, Hatfield Road931 m away | 78 m² | 135 m² | +57 m² +73% | 2021 |
|---|
| 82, Grosvenor Road865 m away | 122 m² | 179 m² | +57 m² +47% | 2017 |
|---|
| 20, Montague Avenue882 m away | 81 m² | 137 m² | +56 m² +69% | 2020 |
|---|
| 54, Burnham Way621 m away | 86 m² | 142 m² | +56 m² +65% | 2012 |
|---|
| 7, Walmer Gardens416 m away | 164 m² | 219 m² | +55 m² +34% | 2019 |
|---|
| 7, St James Avenue935 m away | 155 m² | 209 m² | +54 m² +35% | 2022 |
|---|
| 2, Seasons Close948 m away | 64 m² | 117 m² | +53 m² +83% | 2020 |
|---|
| 153, Boston Road531 m away | 48 m² | 101 m² | +53 m² +110% | 2014 |
|---|
| 5, Adelaide Road820 m away | 105 m² | 157 m² | +52 m² +50% | 2024 |
|---|
| 81, Leighton Road601 m away | 126 m² | 178 m² | +52 m² +41% | 2023 |
|---|
| 10, Wyndham Road633 m away | 92 m² | 144 m² | +52 m² +57% | 2015 |
|---|
| 32, Deans Road741 m away | 81 m² | 132 m² | +51 m² +63% | 2026 |
|---|
| 103, Leighton Road601 m away | 93 m² | 144 m² | +51 m² +55% | 2025 |
|---|
| 45, Wyndham Road633 m away | 101 m² | 152 m² | +51 m² +50% | 2025 |
|---|
| 45, Southdown Avenue385 m away | 140 m² | 191 m² | +51 m² +36% | 2022 |
|---|
| 91, Southdown Avenue148 m away | 128 m² | 179 m² | +51 m² +40% | 2020 |
|---|
| 65, Burnham Way634 m away | 89 m² | 140 m² | +51 m² +57% | 2019 |
|---|
| 22, St James Avenue981 m away | 141 m² | 191 m² | +50 m² +35% | 2025 |
|---|
| 4, Royal Gardens182 m away | 153 m² | 203 m² | +50 m² +33% | 2016 |
|---|
| 9, Montague Road772 m away | 40 m² | 90 m² | +50 m² +125% | 2012 |
|---|
| 8, Studley Grange Road615 m away | 86 m² | 135 m² | +49 m² +57% | 2023 |
|---|
| 42, Adelaide Road793 m away | 101 m² | 150 m² | +49 m² +49% | 2017 |
|---|
| 47, Hessel Road825 m away | 86 m² | 134 m² | +48 m² +56% | 2026 |
|---|
| 150, Oaklands Road696 m away | 54 m² | 102 m² | +48 m² +89% | 2024 |
|---|
| 36, Adelaide Road793 m away | 106 m² | 154 m² | +48 m² +45% | 2023 |
|---|
| 70, St Dunstans Road839 m away | 89 m² | 137 m² | +48 m² +54% | 2019 |
|---|
| 52, Rosebank Road771 m away | 76 m² | 124 m² | +48 m² +63% | 2018 |
|---|
| 6, St Kilda Road743 m away | 113 m² | 161 m² | +48 m² +42% | 2010 |
|---|
| 10, Seward Road664 m away | 109 m² | 156 m² | +47 m² +43% | 2026 |
|---|
| 6, Newland Gardens472 m away | 88 m² | 135 m² | +47 m² +53% | 2024 |
|---|
| 18, Burnham Way750 m away | 86 m² | 133 m² | +47 m² +55% | 2023 |
|---|
| 36, Burnham Way621 m away | 89 m² | 136 m² | +47 m² +53% | 2012 |
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| 54, Manton Avenue451 m away | 84 m² | 130 m² | +46 m² +55% | 2025 |
|---|
| 7, St Marks Road893 m away | 52 m² | 98 m² | +46 m² +88% | 2023 |
|---|
| 45, Northfield Avenue922 m away | 85 m² | 130 m² | +45 m² +53% | 2018 |
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| 132, Oaklands Road696 m away | 119 m² | 163 m² | +44 m² +37% | 2026 |
|---|
| 13, Lambourn Close471 m away | 32 m² | 76 m² | +44 m² +138% | 2025 |
|---|
| 19, Osterley Park View Road667 m away | 90 m² | 134 m² | +44 m² +49% | 2025 |
|---|
| 73, Clitherow Avenue257 m away | 104 m² | 148 m² | +44 m² +42% | 2023 |
|---|
| 7, Glenfield Road986 m away | 94 m² | 138 m² | +44 m² +47% | 2020 |
|---|
| 4, Deans Road741 m away | 68 m² | 112 m² | +44 m² +65% | 2017 |
|---|
| 18, St Kilda Road743 m away | 110 m² | 154 m² | +44 m² +40% | 2016 |
|---|
| 41, Claygate Road605 m away | 98 m² | 142 m² | +44 m² +45% | 2015 |
|---|
| 75, Oaklands Road665 m away | 126 m² | 170 m² | +44 m² +35% | 2015 |
|---|
| 105, Grosvenor Road838 m away | 79 m² | 122 m² | +43 m² +54% | 2024 |
|---|
| 70, Boston Road774 m away | 99 m² | 142 m² | +43 m² +43% | 2023 |
|---|
| 33, Bishops Road985 m away | 57 m² | 100 m² | +43 m² +75% | 2023 |
|---|
| 28b, Coldershaw Road884 m away | 61 m² | 104 m² | +43 m² +70% | 2021 |
|---|
| 89, Northcroft Road749 m away | 65 m² | 108 m² | +43 m² +66% | 2019 |
|---|
| 102, Cranmer Avenue741 m away | 47 m² | 90 m² | +43 m² +91% | 2018 |
|---|
| 45, Leighton Road843 m away | 110 m² | 153 m² | +43 m² +39% | 2018 |
|---|
| 51, Burnham Way634 m away | 91 m² | 134 m² | +43 m² +47% | 2014 |
|---|
| 89, St Kilda Road766 m away | 129 m² | 171 m² | +42 m² +33% | 2025 |
|---|
| 53, Glenfield Road986 m away | 86 m² | 128 m² | +42 m² +49% | 2025 |
|---|
| 9, Glenfield Road986 m away | 91 m² | 133 m² | +42 m² +46% | 2023 |
|---|
| 98, Coldershaw Road645 m away | 114 m² | 156 m² | +42 m² +37% | 2020 |
|---|
| 8, Glenfield Road986 m away | 88 m² | 130 m² | +42 m² +48% | 2019 |
|---|
| 9, Jersey Road326 m away | 96 m² | 137 m² | +41 m² +43% | 2026 |
|---|
| 13, Chamberlain Road571 m away | 70 m² | 111 m² | +41 m² +59% | 2025 |
|---|
| 14, Southfield Cottages557 m away | 49 m² | 90 m² | +41 m² +84% | 2022 |
|---|
| 3, Seasons Close948 m away | 102 m² | 143 m² | +41 m² +40% | 2022 |
|---|
| 35, Haslemere Avenue416 m away | 89 m² | 130 m² | +41 m² +46% | 2021 |
|---|
| 126, Elthorne Avenue437 m away | 89 m² | 130 m² | +41 m² +46% | 2021 |
|---|
| 43, Osterley Park View Road667 m away | 98 m² | 139 m² | +41 m² +42% | 2019 |
|---|
| 134a, Oaklands Road696 m away | 58 m² | 99 m² | +41 m² +71% | 2017 |
|---|
| 21, Mayfield Avenue828 m away | 89 m² | 130 m² | +41 m² +46% | 2017 |
|---|
| 136, Boston Manor Road976 m away | 103 m² | 144 m² | +41 m² +40% | 2016 |
|---|
| 15, Cantley Road161 m away | 90 m² | 130 m² | +40 m² +44% | 2025 |
|---|
| 66, Westfield Road888 m away | 78 m² | 118 m² | +40 m² +51% | 2025 |
|---|
| 10, Glenfield Terrace957 m away | 74 m² | 114 m² | +40 m² +54% | 2025 |
|---|
| 136, Oaklands Road696 m away | 58 m² | 98 m² | +40 m² +69% | 2024 |
|---|
| 162, Coldershaw Road645 m away | 179 m² | 219 m² | +40 m² +22% | 2021 |
|---|
| 50, Elthorne Park Road281 m away | 83 m² | 122 m² | +39 m² +47% | 2026 |
|---|
| 40, Claygate Road605 m away | 109 m² | 148 m² | +39 m² +36% | 2026 |
|---|
| 14, Bonchurch Road999 m away | 74 m² | 113 m² | +39 m² +53% | 2026 |
|---|
| 18, Salisbury Road786 m away | 81 m² | 120 m² | +39 m² +48% | 2023 |
|---|
| 239, Boston Manor Road925 m away | 111 m² | 150 m² | +39 m² +35% | 2019 |
|---|
| 96, Studley Grange Road615 m away | 81 m² | 120 m² | +39 m² +48% | 2018 |
|---|
| 1b, St Marks Road893 m away | 116 m² | 155 m² | +39 m² +34% | 2014 |
|---|
| 51, Salisbury Road624 m away | 79 m² | 117 m² | +38 m² +48% | 2026 |
|---|
| 39, Oaklands Road508 m away | 72 m² | 110 m² | +38 m² +53% | 2024 |
|---|
| 8, Montague Road764 m away | 72 m² | 110 m² | +38 m² +53% | 2023 |
|---|
| 59, Westfield Road949 m away | 87 m² | 125 m² | +38 m² +44% | 2022 |
|---|
| 48, Altenburg Avenue868 m away | 69 m² | 107 m² | +38 m² +55% | 2019 |
|---|
| 22, Altenburg Avenue868 m away | 71 m² | 109 m² | +38 m² +54% | 2013 |
|---|
| 24, Belsize Avenue946 m away | 78 m² | 115 m² | +37 m² +47% | 2022 |
|---|
| 59, Midhurst Road589 m away | 115 m² | 152 m² | +37 m² +32% | 2020 |
|---|
| 18, Chalfont Way599 m away | 106 m² | 143 m² | +37 m² +35% | 2018 |
|---|
| 47, Glenfield Road986 m away | 84 m² | 121 m² | +37 m² +44% | 2017 |
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| 5, Edinburgh Road575 m away | 79 m² | 116 m² | +37 m² +47% | 2015 |
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| 12, Coldershaw Road884 m away | 94 m² | 131 m² | +37 m² +39% | 2014 |
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| 17, Cantley Road161 m away | 88 m² | 124 m² | +36 m² +41% | 2026 |
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| 22, Cranmer Avenue918 m away | 68 m² | 104 m² | +36 m² +53% | 2026 |
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| 61, Salisbury Road624 m away | 76 m² | 112 m² | +36 m² +47% | 2025 |
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| 43, Balfour Road781 m away | 75 m² | 111 m² | +36 m² +48% | 2025 |
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| 20, Graham Avenue831 m away | 97 m² | 133 m² | +36 m² +37% | 2025 |
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| 90, Elthorne Park Road374 m away | 110 m² | 146 m² | +36 m² +33% | 2024 |
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| 31, Osterley Park View Road667 m away | 85 m² | 121 m² | +36 m² +42% | 2024 |
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| 23, Cranmer Avenue918 m away | 81 m² | 117 m² | +36 m² +44% | 2024 |
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| 55, Glenfield Road986 m away | 95 m² | 131 m² | +36 m² +38% | 2024 |
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| 21, Green Avenue906 m away | 74 m² | 110 m² | +36 m² +49% | 2021 |
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| 7, Cambridge Road616 m away | 90 m² | 126 m² | +36 m² +40% | 2020 |
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| 46, Mayfield Avenue792 m away | 101 m² | 137 m² | +36 m² +36% | 2020 |
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| 12, Glenfield Terrace957 m away | 71 m² | 107 m² | +36 m² +51% | 2018 |
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| 34, Deans Road741 m away | 81 m² | 117 m² | +36 m² +44% | 2017 |
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| 23, Chalfont Way599 m away | 96 m² | 132 m² | +36 m² +38% | 2014 |
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| 30, Raymond Avenue326 m away | 95 m² | 131 m² | +36 m² +38% | 2012 |
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| 13, Bishops Road985 m away | 59 m² | 94 m² | +35 m² +59% | 2025 |
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| 106, St Kilda Road743 m away | 113 m² | 148 m² | +35 m² +31% | 2024 |
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| 10, Altenburg Avenue868 m away | 81 m² | 116 m² | +35 m² +43% | 2024 |
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| 87, Elthorne Park Road427 m away | 76 m² | 111 m² | +35 m² +46% | 2022 |
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| 62, Balfour Road612 m away | 76 m² | 111 m² | +35 m² +46% | 2022 |
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| 29, Adelaide Road820 m away | 68 m² | 103 m² | +35 m² +51% | 2022 |
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| 81, Boston Gardens754 m away | 114 m² | 149 m² | +35 m² +31% | 2020 |
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| 51, Hessel Road825 m away | 91 m² | 126 m² | +35 m² +38% | 2019 |
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| 39, Green Avenue906 m away | 77 m² | 112 m² | +35 m² +45% | 2017 |
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| 75, Hessel Road653 m away | 76 m² | 111 m² | +35 m² +46% | 2014 |
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| 33, St James Avenue935 m away | 160 m² | 195 m² | +35 m² +22% | 2011 |
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| 5, Chepstow Road196 m away | 92 m² | 126 m² | +34 m² +37% | 2026 |
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| 19, Whitehall Road311 m away | 98 m² | 132 m² | +34 m² +35% | 2025 |
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| 54, Rosebank Road771 m away | 88 m² | 122 m² | +34 m² +39% | 2025 |
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| 28, Woodstock Avenue374 m away | 121 m² | 155 m² | +34 m² +28% | 2024 |
|---|
| 1, Belsize Avenue946 m away | 69 m² | 103 m² | +34 m² +49% | 2024 |
|---|
| 5, Thurlow Road387 m away | 40 m² | 74 m² | +34 m² +85% | 2022 |
|---|
| 55, Northcroft Road749 m away | 77 m² | 111 m² | +34 m² +44% | 2021 |
|---|
| 31, St Margarets Road860 m away | 99 m² | 133 m² | +34 m² +34% | 2021 |
|---|
| 54, Graham Avenue831 m away | 88 m² | 122 m² | +34 m² +39% | 2020 |
|---|
| 47, Erlesmere Gardens365 m away | 106 m² | 140 m² | +34 m² +32% | 2017 |
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| 89, Studley Grange Road592 m away | 67 m² | 101 m² | +34 m² +51% | 2014 |
|---|
| 73, Seward Road488 m away | 113 m² | 147 m² | +34 m² +30% | 2012 |
|---|
| 52, Salisbury Road786 m away | 86 m² | 119 m² | +33 m² +38% | 2026 |
|---|
| 4, St Dunstans Road839 m away | 125 m² | 158 m² | +33 m² +26% | 2026 |
|---|
| 10, Elthorne Avenue332 m away | 102 m² | 135 m² | +33 m² +32% | 2025 |
|---|
| 57, Northcroft Road749 m away | 73 m² | 106 m² | +33 m² +45% | 2025 |
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| 87, Adelaide Road820 m away | 114 m² | 147 m² | +33 m² +29% | 2025 |
|---|
| 12, Wellmeadow Road519 m away | 146 m² | 179 m² | +33 m² +23% | 2022 |
|---|
| 81, Balfour Road612 m away | 72 m² | 105 m² | +33 m² +46% | 2022 |
|---|
| 51, Northfield Avenue922 m away | 42 m² | 75 m² | +33 m² +79% | 2022 |
|---|
| 33, Rosebank Road742 m away | 89 m² | 122 m² | +33 m² +37% | 2020 |
|---|
| 62, Elthorne Park Road374 m away | 47 m² | 80 m² | +33 m² +70% | 2019 |
|---|
| 51, Mayfield Avenue603 m away | 100 m² | 132 m² | +32 m² +32% | 2026 |
|---|
| 10, Burnham Way709 m away | 87 m² | 119 m² | +32 m² +37% | 2025 |
|---|
| 54, Ridley Avenue707 m away | 63 m² | 95 m² | +32 m² +51% | 2023 |
|---|
| 5, Grosvenor Road953 m away | 100 m² | 132 m² | +32 m² +32% | 2022 |
|---|
| 11a, Sydney Road873 m away | 40 m² | 72 m² | +32 m² +80% | 2021 |
|---|
| 142a, Northfield Avenue971 m away | 58 m² | 90 m² | +32 m² +55% | 2021 |
|---|
| 105a, Leighton Road601 m away | 46 m² | 78 m² | +32 m² +70% | 2020 |
|---|
| 32, Salisbury Road786 m away | 86 m² | 118 m² | +32 m² +37% | 2020 |
|---|
| 47, St Dunstans Road812 m away | 79 m² | 111 m² | +32 m² +41% | 2020 |
|---|
| 12, Elthorne Avenue332 m away | 105 m² | 137 m² | +32 m² +30% | 2019 |
|---|
| 65, Osterley Park View Road667 m away | 100 m² | 132 m² | +32 m² +32% | 2019 |
|---|
| 64, Ridley Avenue707 m away | 63 m² | 95 m² | +32 m² +51% | 2019 |
|---|
| 41, Balfour Road781 m away | 83 m² | 115 m² | +32 m² +39% | 2019 |
|---|
| 46, Cranmer Avenue918 m away | 73 m² | 105 m² | +32 m² +44% | 2019 |
|---|
| 17, Balfour Road781 m away | 75 m² | 107 m² | +32 m² +43% | 2017 |
|---|
| 5, St Andrews Road966 m away | 47 m² | 79 m² | +32 m² +68% | 2017 |
|---|
| 29, St Dunstans Road812 m away | 79 m² | 111 m² | +32 m² +41% | 2014 |
|---|
| 85, Northcroft Road749 m away | 75 m² | 107 m² | +32 m² +43% | 2013 |
|---|
| 53, Coldershaw Road906 m away | 63 m² | 94 m² | +31 m² +49% | 2024 |
|---|
| 38, Altenburg Avenue868 m away | 81 m² | 112 m² | +31 m² +38% | 2023 |
|---|
| 71, Boston Road958 m away | 89 m² | 120 m² | +31 m² +35% | 2022 |
|---|
| 44, Adelaide Road793 m away | 107 m² | 138 m² | +31 m² +29% | 2017 |
|---|
| 51, St Dunstans Road812 m away | 84 m² | 115 m² | +31 m² +37% | 2017 |
|---|
| 77, Northcroft Road749 m away | 73 m² | 104 m² | +31 m² +42% | 2016 |
|---|
| 69, Northcroft Road749 m away | 74 m² | 105 m² | +31 m² +42% | 2015 |
|---|
| 3, Jessamine Road978 m away | 37 m² | 68 m² | +31 m² +84% | 2015 |
|---|
| 7, Green Avenue906 m away | 81 m² | 112 m² | +31 m² +38% | 2011 |
|---|
| 3, Littlewood Close793 m away | 45 m² | 76 m² | +31 m² +69% | 2010 |
|---|
| 71, Hessel Road653 m away | 76 m² | 106 m² | +30 m² +39% | 2025 |
|---|
| 33, Green Avenue906 m away | 80 m² | 110 m² | +30 m² +38% | 2025 |
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