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 UB1 2QG
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 |
|---|---|---|---|---|
| 346, Ruislip Road400 m away | 96 m² | 192 m² | +96 m² +100% | 2023 |
| 7, Kenilworth Gardens73 m away | 84 m² | 177 m² | +93 m² +111% | 2026 |
| 314, Lady Margaret Road883 m away | 93 m² | 186 m² | +93 m² +100% | 2025 |
| 44, Lyndhurst Road760 m away | 83 m² | 171 m² | +88 m² +106% | 2015 |
| 27, Marnham Crescent836 m away | 66 m² | 149 m² | +83 m² +126% | 2025 |
| 104, Somerset Road858 m away | 72 m² | 152 m² | +80 m² +111% | 2021 |
| 246, Ferrymead Avenue429 m away | 84 m² | 164 m² | +80 m² +95% | 2014 |
| 5, Marnham Crescent836 m away | 88 m² | 161 m² | +73 m² +83% | 2024 |
| 67, Ferrymead Avenue904 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.
| 66 m² |
| 137 m² |
| +71 m² +108% |
| 2026 |
| 3, Marsworth Close934 m away | 60 m² | 129 m² | +69 m² +115% | 2018 |
|---|
| 72, Westbury Avenue573 m away | 67 m² | 131 m² | +64 m² +96% | 2017 |
|---|
| 55, Marnham Crescent924 m away | 75 m² | 137 m² | +62 m² +83% | 2026 |
|---|
| 7, Towers Road339 m away | 69 m² | 131 m² | +62 m² +90% | 2018 |
|---|
| 128, Westbury Avenue321 m away | 52 m² | 113 m² | +61 m² +117% | 2021 |
|---|
| 25, Avon Road684 m away | 84 m² | 144 m² | +60 m² +71% | 2019 |
|---|
| 8, Towney Mead606 m away | 61 m² | 120 m² | +59 m² +97% | 2014 |
|---|
| 26, Bycroft Road630 m away | 65 m² | 122 m² | +57 m² +88% | 2023 |
|---|
| 24, Nimrod Close991 m away | 61 m² | 116 m² | +55 m² +90% | 2014 |
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| 22, Eastmead Avenue696 m away | 83 m² | 137 m² | +54 m² +65% | 2020 |
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| 2a, Greenway Gardens577 m away | 47 m² | 100 m² | +53 m² +113% | 2023 |
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| 48, Ruislip Road875 m away | 96 m² | 149 m² | +53 m² +55% | 2021 |
|---|
| 411, Ruislip Road873 m away | 71 m² | 123 m² | +52 m² +73% | 2014 |
|---|
| 7, Kensington Road340 m away | 90 m² | 141 m² | +51 m² +57% | 2025 |
|---|
| 79, Somerset Road885 m away | 83 m² | 133 m² | +50 m² +60% | 2026 |
|---|
| 65, Upper Town Road749 m away | 80 m² | 129 m² | +49 m² +61% | 2017 |
|---|
| 399, Allenby Road434 m away | 84 m² | 132 m² | +48 m² +57% | 2026 |
|---|
| 16, Alexandra Court, 59, Marnham Crescent966 m away | 42 m² | 90 m² | +48 m² +114% | 2012 |
|---|
| 16, Hillside Road210 m away | 64 m² | 111 m² | +47 m² +73% | 2024 |
|---|
| 87, Westbury Avenue457 m away | 71 m² | 118 m² | +47 m² +66% | 2015 |
|---|
| 26, Greenhill Gardens614 m away | 107 m² | 154 m² | +47 m² +44% | 2014 |
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| 150, Rutland Road420 m away | 56 m² | 102 m² | +46 m² +82% | 2026 |
|---|
| 311, Ruislip Road217 m away | 72 m² | 118 m² | +46 m² +64% | 2025 |
|---|
| 20, Towney Mead606 m away | 62 m² | 105 m² | +43 m² +69% | 2014 |
|---|
| 93, Telford Way953 m away | 80 m² | 123 m² | +43 m² +54% | 2013 |
|---|
| 20, Court Mead418 m away | 98 m² | 140 m² | +42 m² +43% | 2024 |
|---|
| 440, Allenby Road442 m away | 67 m² | 109 m² | +42 m² +63% | 2023 |
|---|
| 25, Pembroke Road871 m away | 84 m² | 126 m² | +42 m² +50% | 2023 |
|---|
| 34, Telford Way953 m away | 54 m² | 96 m² | +42 m² +78% | 2015 |
|---|
| 4, Bycroft Road630 m away | 100 m² | 141 m² | +41 m² +41% | 2025 |
|---|
| 37, Upper Town Road749 m away | 80 m² | 121 m² | +41 m² +51% | 2022 |
|---|
| 11, Marnham Crescent836 m away | 63 m² | 104 m² | +41 m² +65% | 2022 |
|---|
| 4, Chipmunk Grove908 m away | 71 m² | 112 m² | +41 m² +58% | 2014 |
|---|
| 22, Neal Avenue106 m away | 35 m² | 75 m² | +40 m² +114% | 2024 |
|---|
| 60, Shadwell Drive468 m away | 103 m² | 143 m² | +40 m² +39% | 2024 |
|---|
| 56, Braund Avenue611 m away | 96 m² | 135 m² | +39 m² +41% | 2025 |
|---|
| 2, Kensington Road340 m away | 84 m² | 123 m² | +39 m² +46% | 2023 |
|---|
| 5, Allenby Close508 m away | 85 m² | 124 m² | +39 m² +46% | 2016 |
|---|
| 2, Hillside Road210 m away | 80 m² | 119 m² | +39 m² +49% | 2015 |
|---|
| 76, Elm Tree Close500 m away | 83 m² | 121 m² | +38 m² +46% | 2023 |
|---|
| 5, Sunnycroft Road713 m away | 73 m² | 110 m² | +37 m² +51% | 2023 |
|---|
| 252, Allenby Road849 m away | 28 m² | 65 m² | +37 m² +132% | 2014 |
|---|
| 32, Horse Shoe Crescent850 m away | 73 m² | 109 m² | +36 m² +49% | 2025 |
|---|
| 53, Farrier Road879 m away | 79 m² | 115 m² | +36 m² +46% | 2012 |
|---|
| Flat 27, Harborough House, Taywood Road236 m away | 42 m² | 77 m² | +35 m² +83% | 2026 |
|---|
| 9, Greenway Gardens577 m away | 97 m² | 132 m² | +35 m² +36% | 2021 |
|---|
| 37, Grantham House, Taywood Road250 m away | 56 m² | 91 m² | +35 m² +63% | 2012 |
|---|
| 28, Nimrod Close991 m away | 42 m² | 76 m² | +34 m² +81% | 2025 |
|---|
| 45, Greenway Gardens635 m away | 63 m² | 97 m² | +34 m² +54% | 2021 |
|---|
| 17, Swallow Drive793 m away | 25 m² | 59 m² | +34 m² +136% | 2021 |
|---|
| 40, Telford Way953 m away | 60 m² | 94 m² | +34 m² +57% | 2015 |
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| 20, Shadwell Drive525 m away | 114 m² | 147 m² | +33 m² +29% | 2025 |
|---|
| 143, Byron Way789 m away | 35 m² | 68 m² | +33 m² +94% | 2021 |
|---|
| 140, Byron Way789 m away | 45 m² | 78 m² | +33 m² +73% | 2020 |
|---|
| 35, Lawson Road311 m away | 52 m² | 85 m² | +33 m² +63% | 2018 |
|---|
| 297, Lady Margaret Road871 m away | 153 m² | 186 m² | +33 m² +22% | 2014 |
|---|
| 17, Stickleton Close757 m away | 37 m² | 69 m² | +32 m² +86% | 2023 |
|---|
| 94, Eastmead Avenue842 m away | 56 m² | 88 m² | +32 m² +57% | 2022 |
|---|
| 10, Upper Town Road758 m away | 83 m² | 115 m² | +32 m² +39% | 2018 |
|---|
| 44, Braund Avenue611 m away | 88 m² | 119 m² | +31 m² +35% | 2021 |
|---|
| 78, Frensham Close168 m away | 50 m² | 81 m² | +31 m² +62% | 2019 |
|---|
| 78, Braund Avenue641 m away | 79 m² | 109 m² | +30 m² +38% | 2026 |
|---|
| 57, Crossmead Avenue675 m away | 75 m² | 105 m² | +30 m² +40% | 2023 |
|---|
| 18, Upper Town Road758 m away | 77 m² | 107 m² | +30 m² +39% | 2022 |
|---|
| 25, Crossmead Avenue675 m away | 100 m² | 130 m² | +30 m² +30% | 2020 |
|---|
| 16, Millet Road925 m away | 33 m² | 63 m² | +30 m² +91% | 2018 |
|---|
| 222a, Allenby Road849 m away | 96 m² | 126 m² | +30 m² +31% | 2015 |
|---|
| 2, Mornington Road872 m away | 101 m² | 130 m² | +29 m² +29% | 2022 |
|---|
| 26, Marnham Crescent836 m away | 63 m² | 92 m² | +29 m² +46% | 2021 |
|---|
| 15, Millet Road925 m away | 80 m² | 108 m² | +28 m² +35% | 2025 |
|---|
| 6, Cosgrove Close993 m away | 87 m² | 115 m² | +28 m² +32% | 2025 |
|---|
| 7, Crossmead Avenue540 m away | 83 m² | 111 m² | +28 m² +34% | 2024 |
|---|
| 7, Hillside Road210 m away | 64 m² | 92 m² | +28 m² +44% | 2013 |
|---|
| 15, Braund Avenue565 m away | 77 m² | 104 m² | +27 m² +35% | 2025 |
|---|
| 5, Chirk Close741 m away | 140 m² | 167 m² | +27 m² +19% | 2022 |
|---|
| 123, Ferrymead Avenue802 m away | 82 m² | 108 m² | +26 m² +32% | 2026 |
|---|
| 43, Verulam Road485 m away | 88 m² | 114 m² | +26 m² +30% | 2023 |
|---|
| 55, Rutland Road711 m away | 61 m² | 87 m² | +26 m² +43% | 2018 |
|---|
| 93, Byron Way871 m away | 33 m² | 59 m² | +26 m² +79% | 2016 |
|---|
| 10, Byron Way828 m away | 45 m² | 71 m² | +26 m² +58% | 2015 |
|---|
| 67, Aspen Lane673 m away | 94 m² | 119 m² | +25 m² +27% | 2026 |
|---|
| 234a, Ruislip Road371 m away | 91 m² | 116 m² | +25 m² +27% | 2025 |
|---|
| 1, Maple Grove546 m away | 68 m² | 93 m² | +25 m² +37% | 2025 |
|---|
| 21, Braunston Drive783 m away | 81 m² | 106 m² | +25 m² +31% | 2025 |
|---|
| 29, Rutland Road822 m away | 77 m² | 102 m² | +25 m² +32% | 2025 |
|---|
| 13, Highview, Byron Way766 m away | 33 m² | 58 m² | +25 m² +76% | 2023 |
|---|
| 14, Sealand Walk976 m away | 88 m² | 113 m² | +25 m² +28% | 2023 |
|---|
| 32, Millet Road925 m away | 66 m² | 91 m² | +25 m² +38% | 2021 |
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| 34, Coraline Close149 m away | 52 m² | 77 m² | +25 m² +48% | 2019 |
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| 19, Sealand Walk976 m away | 91 m² | 116 m² | +25 m² +27% | 2016 |
|---|
| 6, Montgolfier Walk912 m away | 78 m² | 103 m² | +25 m² +32% | 2014 |
|---|
| 9, Laburnum Grove429 m away | 78 m² | 102 m² | +24 m² +31% | 2025 |
|---|
| 439, Lady Margaret Road319 m away | 107 m² | 131 m² | +24 m² +22% | 2024 |
|---|
| 126, Rutland Road420 m away | 53 m² | 77 m² | +24 m² +45% | 2024 |
|---|
| 16, Sunnycroft Road713 m away | 87 m² | 111 m² | +24 m² +28% | 2024 |
|---|
| 19, Adrienne Avenue87 m away | 75 m² | 99 m² | +24 m² +32% | 2021 |
|---|
| Flat 39, Harborough House, Taywood Road236 m away | 39 m² | 63 m² | +24 m² +62% | 2019 |
|---|
| 308, Allenby Road639 m away | 85 m² | 109 m² | +24 m² +28% | 2016 |
|---|
| 8a, Waterside Close395 m away | 48 m² | 72 m² | +24 m² +50% | 2014 |
|---|
| 16, Arrowscout Walk911 m away | 92 m² | 116 m² | +24 m² +26% | 2014 |
|---|
| 2, Nimrod Close991 m away | 55 m² | 79 m² | +24 m² +44% | 2014 |
|---|
| 63, Farrier Road879 m away | 94 m² | 118 m² | +24 m² +26% | 2013 |
|---|
| 50, Hazeltree Lane596 m away | 84 m² | 107 m² | +23 m² +27% | 2025 |
|---|
| 15, Purcell Road957 m away | 111 m² | 134 m² | +23 m² +21% | 2025 |
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| 396, Lady Margaret Road388 m away | 127 m² | 150 m² | +23 m² +18% | 2022 |
|---|
| 4, Frensham Close156 m away | 34 m² | 57 m² | +23 m² +68% | 2021 |
|---|
| 2, Wilstone Close940 m away | 57 m² | 80 m² | +23 m² +40% | 2021 |
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| 31, Frensham Close201 m away | 56 m² | 79 m² | +23 m² +41% | 2020 |
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| 427, Lady Margaret Road319 m away | 146 m² | 169 m² | +23 m² +16% | 2017 |
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| Flat 1, Allendale, Kensington Road991 m away | 71 m² | 94 m² | +23 m² +32% | 2017 |
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| 102, Rutland Road535 m away | 22 m² | 45 m² | +23 m² +105% | 2014 |
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| 80, Hazelmere Road848 m away | 85 m² | 108 m² | +23 m² +27% | 2014 |
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| 103, Union Road856 m away | 54 m² | 77 m² | +23 m² +43% | 2014 |
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| 17, Rosedene Avenue436 m away | 84 m² | 106 m² | +22 m² +26% | 2025 |
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| 312, Lady Margaret Road883 m away | 88 m² | 110 m² | +22 m² +25% | 2025 |
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| 175, Westbury Avenue321 m away | 76 m² | 98 m² | +22 m² +29% | 2024 |
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| 238, Allenby Road849 m away | 78 m² | 100 m² | +22 m² +28% | 2021 |
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| 5, Dunsmore Close978 m away | 96 m² | 118 m² | +22 m² +23% | 2016 |
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| 24, Avon Road770 m away | 70 m² | 92 m² | +22 m² +31% | 2013 |
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| 5, Hart Grove797 m away | 63 m² | 85 m² | +22 m² +35% | 2013 |
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| 266, Allenby Road639 m away | 95 m² | 116 m² | +21 m² +22% | 2024 |
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| 2, Aspen Lane677 m away | 75 m² | 96 m² | +21 m² +28% | 2024 |
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| 78, Hazelmere Road848 m away | 66 m² | 87 m² | +21 m² +32% | 2023 |
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| 4, Cressage Close255 m away | 63 m² | 84 m² | +21 m² +33% | 2020 |
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| 2, Home Close471 m away | 85 m² | 106 m² | +21 m² +25% | 2019 |
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| 127, Ferrymead Avenue802 m away | 79 m² | 100 m² | +21 m² +27% | 2018 |
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| 206, Rectory Park Avenue672 m away | 85 m² | 106 m² | +21 m² +25% | 2017 |
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| 28, Hillside Road210 m away | 83 m² | 104 m² | +21 m² +25% | 2015 |
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| 27, Hazeltree Lane596 m away | 78 m² | 98 m² | +20 m² +26% | 2026 |
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| 23, Blisworth Close665 m away | 59 m² | 79 m² | +20 m² +34% | 2025 |
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| 29, Eastmead Avenue696 m away | 57 m² | 77 m² | +20 m² +35% | 2025 |
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| 17, Enmore Road328 m away | 80 m² | 100 m² | +20 m² +25% | 2022 |
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| 15b, Greenhill Gardens648 m away | 88 m² | 108 m² | +20 m² +23% | 2020 |
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| 9, Maple Grove546 m away | 83 m² | 103 m² | +20 m² +24% | 2014 |
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| 39, Pikestone Close895 m away | 60 m² | 80 m² | +20 m² +33% | 2014 |
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| 67, Ascot Gardens698 m away | 61 m² | 80 m² | +19 m² +31% | 2026 |
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| 133, Ascot Gardens474 m away | 53 m² | 72 m² | +19 m² +36% | 2025 |
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| 13, Hazeltree Lane596 m away | 78 m² | 97 m² | +19 m² +24% | 2024 |
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| 34, Sunnycroft Road713 m away | 71 m² | 90 m² | +19 m² +27% | 2022 |
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| 60, Beechwood Avenue758 m away | 86 m² | 105 m² | +19 m² +22% | 2022 |
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| 3, Hermes Walk690 m away | 78 m² | 97 m² | +19 m² +24% | 2019 |
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| 1, Sunnycroft Road713 m away | 86 m² | 105 m² | +19 m² +22% | 2016 |
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| 81, Telford Way953 m away | 39 m² | 57 m² | +18 m² +46% | 2026 |
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| 96, Somerset Road858 m away | 99 m² | 117 m² | +18 m² +18% | 2025 |
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| 86, Rutland Road535 m away | 61 m² | 79 m² | +18 m² +30% | 2023 |
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| 20, Garrick Road935 m away | 98 m² | 116 m² | +18 m² +18% | 2019 |
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| 24, Telford Way953 m away | 60 m² | 78 m² | +18 m² +30% | 2019 |
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| 32a, Eastmead Avenue696 m away | 60 m² | 78 m² | +18 m² +30% | 2016 |
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| 32, Eastmead Avenue696 m away | 67 m² | 85 m² | +18 m² +27% | 2016 |
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| 120, Hazelmere Walk901 m away | 99 m² | 117 m² | +18 m² +18% | 2015 |
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| 10, Towney Mead606 m away | 85 m² | 103 m² | +18 m² +21% | 2014 |
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| 56, Elm Tree Close626 m away | 91 m² | 109 m² | +18 m² +20% | 2014 |
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| 5, Garrick Road935 m away | 75 m² | 93 m² | +18 m² +24% | 2013 |
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| 2, Selby Gardens482 m away | 74 m² | 91 m² | +17 m² +23% | 2026 |
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| 5, Braund Avenue565 m away | 80 m² | 97 m² | +17 m² +21% | 2024 |
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| 94, Ruislip Road651 m away | 82 m² | 99 m² | +17 m² +21% | 2023 |
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| 23, St Peters Road995 m away | 96 m² | 113 m² | +17 m² +18% | 2023 |
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| 34, Byron Way851 m away | 46 m² | 63 m² | +17 m² +37% | 2022 |
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| 8, Hermes Walk690 m away | 84 m² | 101 m² | +17 m² +20% | 2019 |
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| 21, Brazier Crescent419 m away | 57 m² | 74 m² | +17 m² +30% | 2018 |
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| 424, Lady Margaret Road243 m away | 87 m² | 104 m² | +17 m² +20% | 2015 |
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| 77, Kensington Road644 m away | 106 m² | 123 m² | +17 m² +16% | 2015 |
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| 15, Kingsash Drive956 m away | 60 m² | 77 m² | +17 m² +28% | 2015 |
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| 72, Rectory Park Avenue556 m away | 55 m² | 72 m² | +17 m² +31% | 2014 |
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| 77, Aspen Lane608 m away | 100 m² | 117 m² | +17 m² +17% | 2014 |
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| 32, Braunston Drive783 m away | 59 m² | 76 m² | +17 m² +29% | 2014 |
|---|
| 79, Telford Way953 m away | 37 m² | 53 m² | +16 m² +43% | 2026 |
|---|
| 32, Devonshire Road601 m away | 77 m² | 93 m² | +16 m² +21% | 2024 |
|---|
| 15, Rosedene Avenue436 m away | 81 m² | 97 m² | +16 m² +20% | 2023 |
|---|
| 52, Shadwell Drive468 m away | 86 m² | 102 m² | +16 m² +19% | 2023 |
|---|
| 2, Union Road759 m away | 69 m² | 85 m² | +16 m² +23% | 2023 |
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| 187, Somerset Road880 m away | 67 m² | 83 m² | +16 m² +24% | 2023 |
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| 334, Allenby Road473 m away | 62 m² | 78 m² | +16 m² +26% | 2022 |
|---|
| 11, Devonshire Road601 m away | 48 m² | 64 m² | +16 m² +33% | 2019 |
|---|
| 123, Hazelmere Walk901 m away | 88 m² | 104 m² | +16 m² +18% | 2014 |
|---|
| 19, Maple Grove546 m away | 89 m² | 104 m² | +15 m² +17% | 2026 |
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| 56, Westbury Avenue573 m away | 44 m² | 59 m² | +15 m² +34% | 2026 |
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| 134, Ferrymead Avenue802 m away | 70 m² | 85 m² | +15 m² +21% | 2023 |
|---|
| 45, Kensington Road524 m away | 74 m² | 89 m² | +15 m² +20% | 2021 |
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| 176, Ferrymead Avenue679 m away | 83 m² | 98 m² | +15 m² +18% | 2018 |
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| 31, Stickleton Close757 m away | 48 m² | 63 m² | +15 m² +31% | 2014 |
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| 92, Union Road808 m away | 48 m² | 63 m² | +15 m² +31% | 2013 |
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