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 2PF
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 |
|---|---|---|---|---|
| 1, Wolsey Close787 m away | 96 m² | 232 m² | +136 m² +142% | 2025 |
| 47, Osterley Views, West Park Road564 m away | 127 m² | 248 m² | +121 m² +95% | 2022 |
| 11a, Lower Boston Road444 m away | 102 m² | 212 m² | +110 m² +108% | 2013 |
| 239, Boston Road961 m away | 114 m² | 211 m² | +97 m² +85% | 2023 |
| 39, St Dunstans Road354 m away | 87 m² | 165 m² | +78 m² +90% | 2015 |
| 75, Osterley Views, West Park Road564 m away | 146 m² | 216 m² | +70 m² +48% | 2020 |
| 58, Osterley Views, West Park Road564 m away | 157 m² | 226 m² | +69 m² +44% | 2020 |
| 46, Osterley Views, West Park Road564 m away | 78 m² | 144 m² | +66 m² +85% | 2022 |
| 46, Cherington Road |
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.
| 142 m² |
| 204 m² |
| +62 m² +44% |
| 2023 |
| 76, Cumberland Road967 m away | 99 m² | 160 m² | +61 m² +62% | 2020 |
|---|
| 23, Campbell Road971 m away | 95 m² | 155 m² | +60 m² +63% | 2022 |
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| 18, Studley Grange Road508 m away | 80 m² | 139 m² | +59 m² +74% | 2015 |
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| 24, Manton Avenue1000 m away | 89 m² | 147 m² | +58 m² +65% | 2026 |
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| 20, Montague Avenue694 m away | 81 m² | 137 m² | +56 m² +69% | 2020 |
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| 2, Seasons Close656 m away | 64 m² | 117 m² | +53 m² +83% | 2020 |
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| 153, Boston Road724 m away | 48 m² | 101 m² | +53 m² +110% | 2014 |
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| 32, Deans Road782 m away | 81 m² | 132 m² | +51 m² +63% | 2026 |
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| 17, Station Road741 m away | 95 m² | 146 m² | +51 m² +54% | 2023 |
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| 31, Clairville Gardens828 m away | 80 m² | 131 m² | +51 m² +64% | 2021 |
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| 62, Osterley Views, West Park Road564 m away | 111 m² | 161 m² | +50 m² +45% | 2021 |
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| 9, Montague Road748 m away | 40 m² | 90 m² | +50 m² +125% | 2012 |
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| 8, Studley Grange Road508 m away | 86 m² | 135 m² | +49 m² +57% | 2023 |
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| 70, St Dunstans Road355 m away | 89 m² | 137 m² | +48 m² +54% | 2019 |
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| 52, Rosebank Road387 m away | 76 m² | 124 m² | +48 m² +63% | 2018 |
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| 54, Manton Avenue1000 m away | 84 m² | 130 m² | +46 m² +55% | 2025 |
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| 7, St Marks Road306 m away | 52 m² | 98 m² | +46 m² +88% | 2023 |
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| 17, Lower Boston Road465 m away | 58 m² | 104 m² | +46 m² +79% | 2023 |
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| 1, Westminster Road520 m away | 42 m² | 88 m² | +46 m² +110% | 2023 |
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| 19, Osterley Park View Road465 m away | 90 m² | 134 m² | +44 m² +49% | 2025 |
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| 13, Lambourn Close643 m away | 32 m² | 76 m² | +44 m² +138% | 2025 |
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| 19, Laurel Gardens610 m away | 83 m² | 127 m² | +44 m² +53% | 2020 |
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| 4, Deans Road782 m away | 68 m² | 112 m² | +44 m² +65% | 2017 |
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| 33, Bishops Road284 m away | 57 m² | 100 m² | +43 m² +75% | 2023 |
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| Flat 19, Osterley Views, West Park Road635 m away | 78 m² | 121 m² | +43 m² +55% | 2022 |
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| 3, Seasons Close656 m away | 102 m² | 143 m² | +41 m² +40% | 2022 |
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| 14, Southfield Cottages820 m away | 49 m² | 90 m² | +41 m² +84% | 2022 |
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| 34, Clairville Gardens828 m away | 79 m² | 120 m² | +41 m² +52% | 2020 |
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| 43, Osterley Park View Road465 m away | 98 m² | 139 m² | +41 m² +42% | 2019 |
|---|
| 18, Lawn Gardens679 m away | 94 m² | 135 m² | +41 m² +44% | 2011 |
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| 469, Uxbridge Road547 m away | 78 m² | 118 m² | +40 m² +51% | 2022 |
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| Flat 37, Osterley Gardens, Chevy Road560 m away | 77 m² | 117 m² | +40 m² +52% | 2022 |
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| 96, Studley Grange Road508 m away | 81 m² | 120 m² | +39 m² +48% | 2018 |
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| 1b, St Marks Road306 m away | 116 m² | 155 m² | +39 m² +34% | 2014 |
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| 39, Oaklands Road831 m away | 72 m² | 110 m² | +38 m² +53% | 2024 |
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| 8, Montague Road720 m away | 72 m² | 110 m² | +38 m² +53% | 2023 |
|---|
| 4, Balfour Avenue888 m away | 111 m² | 149 m² | +38 m² +34% | 2023 |
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| Flat 22, Osterley Gardens, Chevy Road560 m away | 111 m² | 149 m² | +38 m² +34% | 2022 |
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| 14, Springfield Road775 m away | 67 m² | 105 m² | +38 m² +57% | 2021 |
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| Flat 7, Glatt House, Hilda Road568 m away | 51 m² | 88 m² | +37 m² +73% | 2022 |
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| 5, Edinburgh Road750 m away | 79 m² | 116 m² | +37 m² +47% | 2015 |
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| 31, Osterley Park View Road465 m away | 85 m² | 121 m² | +36 m² +42% | 2024 |
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| 7, Cambridge Road735 m away | 90 m² | 126 m² | +36 m² +40% | 2020 |
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| 34, Deans Road782 m away | 81 m² | 117 m² | +36 m² +44% | 2017 |
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| 13, Bishops Road284 m away | 59 m² | 94 m² | +35 m² +59% | 2025 |
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| 28, Myrtle Gardens643 m away | 89 m² | 124 m² | +35 m² +39% | 2022 |
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| 54, Rosebank Road387 m away | 88 m² | 122 m² | +34 m² +39% | 2025 |
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| 10, Clairville Gardens828 m away | 81 m² | 115 m² | +34 m² +42% | 2025 |
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| 31, St Margarets Road236 m away | 99 m² | 133 m² | +34 m² +34% | 2021 |
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| 12, Blackmore Avenue599 m away | 73 m² | 107 m² | +34 m² +47% | 2021 |
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| 51, Station Road741 m away | 113 m² | 147 m² | +34 m² +30% | 2021 |
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| 89, Studley Grange Road512 m away | 67 m² | 101 m² | +34 m² +51% | 2014 |
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| 21a, Balfour Avenue888 m away | 50 m² | 84 m² | +34 m² +68% | 2011 |
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| 4, St Dunstans Road355 m away | 125 m² | 158 m² | +33 m² +26% | 2026 |
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| 10, Elthorne Avenue991 m away | 102 m² | 135 m² | +33 m² +32% | 2025 |
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| 33, Rosebank Road416 m away | 89 m² | 122 m² | +33 m² +37% | 2020 |
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| 37, Myrtle Gardens643 m away | 89 m² | 121 m² | +32 m² +36% | 2024 |
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| 47, St Dunstans Road354 m away | 79 m² | 111 m² | +32 m² +41% | 2020 |
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| 65, Osterley Park View Road465 m away | 100 m² | 132 m² | +32 m² +32% | 2019 |
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| 12, Elthorne Avenue991 m away | 105 m² | 137 m² | +32 m² +30% | 2019 |
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| 5, St Andrews Road199 m away | 47 m² | 79 m² | +32 m² +68% | 2017 |
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| 29, St Dunstans Road354 m away | 79 m² | 111 m² | +32 m² +41% | 2014 |
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| 71, Boston Road597 m away | 89 m² | 120 m² | +31 m² +35% | 2022 |
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| 51, St Dunstans Road354 m away | 84 m² | 115 m² | +31 m² +37% | 2017 |
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| 3, Jessamine Road653 m away | 37 m² | 68 m² | +31 m² +84% | 2015 |
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| 23, Laurel Gardens610 m away | 100 m² | 130 m² | +30 m² +30% | 2023 |
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| 25, Wolsey Close787 m away | 82 m² | 112 m² | +30 m² +37% | 2023 |
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| 70, Oaklands Road954 m away | 58 m² | 88 m² | +30 m² +52% | 2016 |
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| 32a, Studley Grange Road508 m away | 42 m² | 72 m² | +30 m² +71% | 2014 |
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| 52, Station Road711 m away | 121 m² | 150 m² | +29 m² +24% | 2026 |
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| 21, Clairville Gardens828 m away | 82 m² | 111 m² | +29 m² +35% | 2022 |
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| 5a, Cumberland Road866 m away | 51 m² | 80 m² | +29 m² +57% | 2017 |
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| 20, Studley Grange Road508 m away | 87 m² | 116 m² | +29 m² +33% | 2014 |
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| 33, Studley Grange Road512 m away | 88 m² | 116 m² | +28 m² +32% | 2025 |
|---|
| 100, St Margarets Road318 m away | 103 m² | 131 m² | +28 m² +27% | 2021 |
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| 160, Uxbridge Road509 m away | 24 m² | 52 m² | +28 m² +117% | 2016 |
|---|
| 1, Humes Avenue553 m away | 85 m² | 112 m² | +27 m² +32% | 2025 |
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| 9, Edinburgh Road750 m away | 85 m² | 112 m² | +27 m² +32% | 2020 |
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| Flat 39, Osterley Gardens, Chevy Road560 m away | 105 m² | 132 m² | +27 m² +26% | 2019 |
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| 59, Studley Grange Road512 m away | 99 m² | 126 m² | +27 m² +27% | 2016 |
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| Flat 27, Osterley Gardens, Chevy Road560 m away | 41 m² | 68 m² | +27 m² +66% | 2009 |
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| 35, St Marks Road306 m away | 111 m² | 137 m² | +26 m² +23% | 2026 |
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| 24a, Laurel Gardens610 m away | 46 m² | 72 m² | +26 m² +57% | 2026 |
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| 66, St Margarets Road318 m away | 71 m² | 97 m² | +26 m² +37% | 2025 |
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| 18, Osterley Park View Road436 m away | 106 m² | 132 m² | +26 m² +25% | 2025 |
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| 39, Comer Crescent697 m away | 76 m² | 102 m² | +26 m² +34% | 2021 |
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| 75, Studley Grange Road512 m away | 38 m² | 64 m² | +26 m² +68% | 2020 |
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| 3, Lambourn Close643 m away | 90 m² | 115 m² | +25 m² +28% | 2023 |
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| 63, Montague Road748 m away | 104 m² | 129 m² | +25 m² +24% | 2023 |
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| 8a, Cumberland Road849 m away | 55 m² | 80 m² | +25 m² +45% | 2018 |
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| 20, Springfield Road775 m away | 81 m² | 106 m² | +25 m² +31% | 2013 |
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| 60, Bishops Road302 m away | 65 m² | 89 m² | +24 m² +37% | 2024 |
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| 211a, Uxbridge Road584 m away | 43 m² | 67 m² | +24 m² +56% | 2024 |
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| 13, Montague Road748 m away | 101 m² | 125 m² | +24 m² +24% | 2023 |
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| 6, Rosedale Close697 m away | 67 m² | 91 m² | +24 m² +36% | 2018 |
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| 20, St Andrews Road199 m away | 83 m² | 106 m² | +23 m² +28% | 2023 |
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| Flat 3, 33, York Avenue831 m away | 52 m² | 75 m² | +23 m² +44% | 2022 |
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| 69, Cumberland Road971 m away | 86 m² | 109 m² | +23 m² +27% | 2022 |
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| 56a, Oaklands Road954 m away | 57 m² | 80 m² | +23 m² +40% | 2019 |
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| 8, Rosebank Road387 m away | 41 m² | 64 m² | +23 m² +56% | 2012 |
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| 60, St Margarets Road318 m away | 80 m² | 102 m² | +22 m² +28% | 2024 |
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| 36a, Station Road711 m away | 64 m² | 86 m² | +22 m² +34% | 2022 |
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| 46, Windmill Lane751 m away | 101 m² | 123 m² | +22 m² +22% | 2022 |
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| 2a, Cumberland Road849 m away | 56 m² | 78 m² | +22 m² +39% | 2020 |
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| 70, St Margarets Road318 m away | 56 m² | 78 m² | +22 m² +39% | 2017 |
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| 21, Osterley Park View Road465 m away | 91 m² | 113 m² | +22 m² +24% | 2015 |
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| 55, Montague Road748 m away | 57 m² | 78 m² | +21 m² +37% | 2026 |
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| 54, Elthorne Avenue991 m away | 55 m² | 76 m² | +21 m² +38% | 2025 |
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| 51, Dock Meadow Reach559 m away | 77 m² | 98 m² | +21 m² +27% | 2024 |
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| Flat 21, Osterley Gardens, Chevy Road560 m away | 89 m² | 110 m² | +21 m² +24% | 2023 |
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| 19, Boston Road643 m away | 46 m² | 67 m² | +21 m² +46% | 2020 |
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| 15, Oaklands Road831 m away | 77 m² | 98 m² | +21 m² +27% | 2014 |
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| 3a, Jessamine Road653 m away | 42 m² | 62 m² | +20 m² +48% | 2025 |
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| 28, Cherington Road818 m away | 131 m² | 151 m² | +20 m² +15% | 2022 |
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| 51, Humes Avenue553 m away | 89 m² | 109 m² | +20 m² +22% | 2020 |
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| 22, Manton Avenue1000 m away | 113 m² | 133 m² | +20 m² +18% | 2018 |
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| 69, Boston Road597 m away | 89 m² | 109 m² | +20 m² +22% | 2014 |
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| 6, Rosebank Road387 m away | 79 m² | 98 m² | +19 m² +24% | 2026 |
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| 17, Osterley Park View Road465 m away | 37 m² | 56 m² | +19 m² +51% | 2026 |
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| 33, Green Lane222 m away | 77 m² | 96 m² | +19 m² +25% | 2025 |
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| 44, Montague Road720 m away | 82 m² | 101 m² | +19 m² +23% | 2024 |
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| 45, Lower Boston Road497 m away | 99 m² | 118 m² | +19 m² +19% | 2018 |
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| 15, Montague Road748 m away | 45 m² | 64 m² | +19 m² +42% | 2015 |
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| 11, Oaklands Road831 m away | 86 m² | 105 m² | +19 m² +22% | 2015 |
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| 177, Boston Road785 m away | 22 m² | 40 m² | +18 m² +82% | 2025 |
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| 6, St Andrews Road199 m away | 78 m² | 96 m² | +18 m² +23% | 2024 |
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| 12, George Street569 m away | 55 m² | 73 m² | +18 m² +33% | 2023 |
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| 31, Deans Road815 m away | 80 m² | 98 m² | +18 m² +23% | 2022 |
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| 45, Deans Road815 m away | 76 m² | 93 m² | +17 m² +22% | 2025 |
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| 16, Boston Road555 m away | 67 m² | 84 m² | +17 m² +25% | 2022 |
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| Flat 12, Diamond Court, Cherington Road742 m away | 45 m² | 62 m² | +17 m² +38% | 2020 |
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| 4b, Cherington Road818 m away | 35 m² | 52 m² | +17 m² +49% | 2019 |
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| 31, Station Road741 m away | 47 m² | 64 m² | +17 m² +36% | 2010 |
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| 94, St Margarets Road318 m away | 91 m² | 107 m² | +16 m² +18% | 2026 |
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| 64, Osterley Views, West Park Road564 m away | 94 m² | 110 m² | +16 m² +17% | 2026 |
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| 74, Humes Avenue578 m away | 67 m² | 83 m² | +16 m² +24% | 2024 |
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| 40, Osterley Views, West Park Road564 m away | 94 m² | 110 m² | +16 m² +17% | 2023 |
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| Flat 17, Diamond Court, Cherington Road742 m away | 45 m² | 61 m² | +16 m² +36% | 2023 |
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| 14, Edinburgh Road750 m away | 75 m² | 91 m² | +16 m² +21% | 2022 |
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| 100, Studley Grange Road508 m away | 99 m² | 115 m² | +16 m² +16% | 2021 |
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| Flat 2, 11, Westminster Road520 m away | 34 m² | 50 m² | +16 m² +47% | 2019 |
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| 1, Frederick Villas468 m away | 85 m² | 101 m² | +16 m² +19% | 2016 |
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| Mill House, Windmill Centre757 m away | 43 m² | 59 m² | +16 m² +37% | 2016 |
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| Flat 1, 2 Saren House, Cambridge Road708 m away | 60 m² | 76 m² | +16 m² +27% | 2015 |
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| 9, Brentvale Avenue676 m away | 82 m² | 97 m² | +15 m² +18% | 2026 |
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| 43, Brentvale Avenue676 m away | 51 m² | 66 m² | +15 m² +29% | 2023 |
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| 66, Osterley Views, West Park Road564 m away | 85 m² | 100 m² | +15 m² +18% | 2022 |
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| 10, Maunder Road629 m away | 68 m² | 83 m² | +15 m² +22% | 2013 |
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| 30, Cubitt Square814 m away | 49 m² | 64 m² | +15 m² +31% | 2012 |
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