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 2NJ
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 Road891 m away | 96 m² | 192 m² | +96 m² +100% | 2023 |
| 7, Kenilworth Gardens631 m away | 84 m² | 177 m² | +93 m² +111% | 2026 |
| 314, Lady Margaret Road314 m away | 93 m² | 186 m² | +93 m² +100% | 2025 |
| 44, Lyndhurst Road956 m away | 83 m² | 171 m² | +88 m² +106% | 2015 |
| 34, Ramulis Drive942 m away | 69 m² | 152 m² | +83 m² +120% | 2014 |
| 54, Allendale Avenue578 m away | 67 m² | 148 m² | +81 m² +121% | 2024 |
| 104, Somerset Road411 m away | 72 m² | 152 m² | +80 m² +111% | 2021 |
| 246, Ferrymead Avenue971 m away | 84 m² | 164 m² | +80 m² +95% | 2014 |
| 14, Waxlow Crescent748 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 |
| 171 m² |
| +79 m² +86% |
| 2026 |
| 3, Marsworth Close606 m away | 60 m² | 129 m² | +69 m² +115% | 2018 |
|---|
| 1, Glenorchy Close602 m away | 74 m² | 142 m² | +68 m² +92% | 2025 |
|---|
| 127, Hurley Road857 m away | 83 m² | 150 m² | +67 m² +81% | 2022 |
|---|
| 31, Ramulis Drive905 m away | 61 m² | 128 m² | +67 m² +110% | 2014 |
|---|
| 72, Westbury Avenue337 m away | 67 m² | 131 m² | +64 m² +96% | 2017 |
|---|
| 7, Towers Road601 m away | 69 m² | 131 m² | +62 m² +90% | 2018 |
|---|
| 128, Westbury Avenue386 m away | 52 m² | 113 m² | +61 m² +117% | 2021 |
|---|
| 117, Allenby Road715 m away | 78 m² | 138 m² | +60 m² +77% | 2022 |
|---|
| 25, Avon Road745 m away | 84 m² | 144 m² | +60 m² +71% | 2019 |
|---|
| 26, Bycroft Road415 m away | 65 m² | 122 m² | +57 m² +88% | 2023 |
|---|
| 100, Glencoe Road765 m away | 44 m² | 98 m² | +54 m² +123% | 2023 |
|---|
| 2a, Greenway Gardens978 m away | 47 m² | 100 m² | +53 m² +113% | 2023 |
|---|
| 7, Kensington Road910 m away | 90 m² | 141 m² | +51 m² +57% | 2025 |
|---|
| 79, Somerset Road445 m away | 83 m² | 133 m² | +50 m² +60% | 2026 |
|---|
| 2, Denbigh Road691 m away | 80 m² | 129 m² | +49 m² +61% | 2023 |
|---|
| 65, Upper Town Road665 m away | 80 m² | 129 m² | +49 m² +61% | 2017 |
|---|
| 399, Allenby Road517 m away | 84 m² | 132 m² | +48 m² +57% | 2026 |
|---|
| 228, Lady Margaret Road618 m away | 71 m² | 119 m² | +48 m² +68% | 2026 |
|---|
| 41, Ramulis Drive905 m away | 60 m² | 108 m² | +48 m² +80% | 2017 |
|---|
| 33, Allendale Avenue829 m away | 82 m² | 129 m² | +47 m² +57% | 2025 |
|---|
| 161, North Road997 m away | 85 m² | 132 m² | +47 m² +55% | 2025 |
|---|
| 16, Hillside Road401 m away | 64 m² | 111 m² | +47 m² +73% | 2024 |
|---|
| 33, Patching Way934 m away | 103 m² | 150 m² | +47 m² +46% | 2016 |
|---|
| 87, Westbury Avenue296 m away | 71 m² | 118 m² | +47 m² +66% | 2015 |
|---|
| 150, Rutland Road264 m away | 56 m² | 102 m² | +46 m² +82% | 2026 |
|---|
| 311, Ruislip Road786 m away | 72 m² | 118 m² | +46 m² +64% | 2025 |
|---|
| 15, Sharpness Close796 m away | 45 m² | 91 m² | +46 m² +102% | 2024 |
|---|
| 113, Kings Avenue891 m away | 92 m² | 137 m² | +45 m² +49% | 2026 |
|---|
| 6, Evelyn Grove941 m away | 84 m² | 129 m² | +45 m² +54% | 2026 |
|---|
| 9, Airdrie Close725 m away | 45 m² | 88 m² | +43 m² +96% | 2021 |
|---|
| 93, Telford Way654 m away | 80 m² | 123 m² | +43 m² +54% | 2013 |
|---|
| 138, Allenby Road754 m away | 76 m² | 118 m² | +42 m² +55% | 2026 |
|---|
| 20, Court Mead929 m away | 98 m² | 140 m² | +42 m² +43% | 2024 |
|---|
| 440, Allenby Road798 m away | 67 m² | 109 m² | +42 m² +63% | 2023 |
|---|
| 53, Cranleigh Gardens781 m away | 57 m² | 99 m² | +42 m² +74% | 2020 |
|---|
| 34, Telford Way654 m away | 54 m² | 96 m² | +42 m² +78% | 2015 |
|---|
| 4, Bycroft Road415 m away | 100 m² | 141 m² | +41 m² +41% | 2025 |
|---|
| 37, Upper Town Road665 m away | 80 m² | 121 m² | +41 m² +51% | 2022 |
|---|
| 31, St Ursula Road634 m away | 80 m² | 121 m² | +41 m² +51% | 2016 |
|---|
| 22, Neal Avenue484 m away | 35 m² | 75 m² | +40 m² +114% | 2024 |
|---|
| 144, Lady Margaret Road955 m away | 105 m² | 145 m² | +40 m² +38% | 2021 |
|---|
| 56, Braund Avenue657 m away | 96 m² | 135 m² | +39 m² +41% | 2025 |
|---|
| 8, Stratton Gardens636 m away | 73 m² | 112 m² | +39 m² +53% | 2023 |
|---|
| 2, Kensington Road910 m away | 84 m² | 123 m² | +39 m² +46% | 2023 |
|---|
| 5, Allenby Close842 m away | 85 m² | 124 m² | +39 m² +46% | 2016 |
|---|
| 2, Hillside Road401 m away | 80 m² | 119 m² | +39 m² +49% | 2015 |
|---|
| 97, Lovell Road923 m away | 117 m² | 154 m² | +37 m² +32% | 2024 |
|---|
| 5, Sunnycroft Road451 m away | 73 m² | 110 m² | +37 m² +51% | 2023 |
|---|
| 252, Allenby Road659 m away | 28 m² | 65 m² | +37 m² +132% | 2014 |
|---|
| 45, Mount Avenue933 m away | 82 m² | 118 m² | +36 m² +44% | 2024 |
|---|
| 31, Patching Way934 m away | 99 m² | 135 m² | +36 m² +36% | 2016 |
|---|
| Flat 27, Harborough House, Taywood Road651 m away | 42 m² | 77 m² | +35 m² +83% | 2026 |
|---|
| 9, Greenway Gardens978 m away | 97 m² | 132 m² | +35 m² +36% | 2021 |
|---|
| 17a, Waxlow Crescent748 m away | 77 m² | 112 m² | +35 m² +45% | 2020 |
|---|
| 37, Grantham House, Taywood Road734 m away | 56 m² | 91 m² | +35 m² +63% | 2012 |
|---|
| 195, Allenby Road672 m away | 78 m² | 112 m² | +34 m² +44% | 2026 |
|---|
| 40, Telford Way654 m away | 60 m² | 94 m² | +34 m² +57% | 2015 |
|---|
| 51, Acer Avenue799 m away | 27 m² | 61 m² | +34 m² +126% | 2013 |
|---|
| 8, Mount Avenue933 m away | 103 m² | 136 m² | +33 m² +32% | 2025 |
|---|
| 20, Shadwell Drive988 m away | 114 m² | 147 m² | +33 m² +29% | 2025 |
|---|
| 143, Byron Way951 m away | 35 m² | 68 m² | +33 m² +94% | 2021 |
|---|
| 140, Byron Way951 m away | 45 m² | 78 m² | +33 m² +73% | 2020 |
|---|
| 22, Durdans Road813 m away | 85 m² | 118 m² | +33 m² +39% | 2019 |
|---|
| 24, Shelley Crescent949 m away | 80 m² | 113 m² | +33 m² +41% | 2019 |
|---|
| 35, Lawson Road285 m away | 52 m² | 85 m² | +33 m² +63% | 2018 |
|---|
| 1, Turing Court, Lovell Road948 m away | 51 m² | 84 m² | +33 m² +65% | 2017 |
|---|
| 297, Lady Margaret Road304 m away | 153 m² | 186 m² | +33 m² +22% | 2014 |
|---|
| 17, Stickleton Close1000 m away | 37 m² | 69 m² | +32 m² +86% | 2023 |
|---|
| 10, Upper Town Road750 m away | 83 m² | 115 m² | +32 m² +39% | 2018 |
|---|
| 5, Kennett Drive767 m away | 66 m² | 97 m² | +31 m² +47% | 2025 |
|---|
| 12, Derwent Road543 m away | 87 m² | 118 m² | +31 m² +36% | 2024 |
|---|
| 44, Braund Avenue657 m away | 88 m² | 119 m² | +31 m² +35% | 2021 |
|---|
| 78, Frensham Close556 m away | 50 m² | 81 m² | +31 m² +62% | 2019 |
|---|
| 1a, Cornwall Avenue746 m away | 38 m² | 69 m² | +31 m² +82% | 2009 |
|---|
| 78, Braund Avenue612 m away | 79 m² | 109 m² | +30 m² +38% | 2026 |
|---|
| 18, Upper Town Road750 m away | 77 m² | 107 m² | +30 m² +39% | 2022 |
|---|
| 222a, Allenby Road659 m away | 96 m² | 126 m² | +30 m² +31% | 2015 |
|---|
| 2, Mornington Road728 m away | 101 m² | 130 m² | +29 m² +29% | 2022 |
|---|
| 102, Lovell Road923 m away | 88 m² | 117 m² | +29 m² +33% | 2014 |
|---|
| 187, Allenby Road672 m away | 68 m² | 96 m² | +28 m² +41% | 2021 |
|---|
| 149, Kings Avenue758 m away | 116 m² | 144 m² | +28 m² +24% | 2021 |
|---|
| 7, Hillside Road401 m away | 64 m² | 92 m² | +28 m² +44% | 2013 |
|---|
| 15, Braund Avenue743 m away | 77 m² | 104 m² | +27 m² +35% | 2025 |
|---|
| 5, Chirk Close721 m away | 140 m² | 167 m² | +27 m² +19% | 2022 |
|---|
| 76, Lovell Road923 m away | 104 m² | 131 m² | +27 m² +26% | 2022 |
|---|
| 42, Allendale Avenue674 m away | 63 m² | 90 m² | +27 m² +43% | 2021 |
|---|
| 251, Lady Margaret Road578 m away | 30 m² | 56 m² | +26 m² +87% | 2026 |
|---|
| 53, Hurley Road858 m away | 85 m² | 111 m² | +26 m² +31% | 2025 |
|---|
| 43, Verulam Road667 m away | 88 m² | 114 m² | +26 m² +30% | 2023 |
|---|
| 18, Mount Avenue933 m away | 91 m² | 117 m² | +26 m² +29% | 2020 |
|---|
| 55, Rutland Road294 m away | 61 m² | 87 m² | +26 m² +43% | 2018 |
|---|
| 93, Byron Way969 m away | 33 m² | 59 m² | +26 m² +79% | 2016 |
|---|
| 15, St Stephens Close500 m away | 71 m² | 97 m² | +26 m² +37% | 2015 |
|---|
| 67, Aspen Lane843 m away | 94 m² | 119 m² | +25 m² +27% | 2026 |
|---|
| 1, Maple Grove57 m away | 68 m² | 93 m² | +25 m² +37% | 2025 |
|---|
| 29, Rutland Road328 m away | 77 m² | 102 m² | +25 m² +32% | 2025 |
|---|
| 21, Braunston Drive797 m away | 81 m² | 106 m² | +25 m² +31% | 2025 |
|---|
| 234a, Ruislip Road872 m away | 91 m² | 116 m² | +25 m² +27% | 2025 |
|---|
| 34, Coraline Close650 m away | 52 m² | 77 m² | +25 m² +48% | 2019 |
|---|
| 20, Telford Way708 m away | 61 m² | 86 m² | +25 m² +41% | 2019 |
|---|
| 194, Kings Avenue758 m away | 61 m² | 86 m² | +25 m² +41% | 2010 |
|---|
| 9, Laburnum Grove161 m away | 78 m² | 102 m² | +24 m² +31% | 2025 |
|---|
| 439, Lady Margaret Road253 m away | 107 m² | 131 m² | +24 m² +22% | 2024 |
|---|
| 126, Rutland Road264 m away | 53 m² | 77 m² | +24 m² +45% | 2024 |
|---|
| 16, Sunnycroft Road451 m away | 87 m² | 111 m² | +24 m² +28% | 2024 |
|---|
| 19, Adrienne Avenue598 m away | 75 m² | 99 m² | +24 m² +32% | 2021 |
|---|
| Flat 39, Harborough House, Taywood Road651 m away | 39 m² | 63 m² | +24 m² +62% | 2019 |
|---|
| 308, Allenby Road568 m away | 85 m² | 109 m² | +24 m² +28% | 2016 |
|---|
| 8a, Waterside Close960 m away | 48 m² | 72 m² | +24 m² +50% | 2014 |
|---|
| 15, Purcell Road787 m away | 111 m² | 134 m² | +23 m² +21% | 2025 |
|---|
| 50, Hazeltree Lane885 m away | 84 m² | 107 m² | +23 m² +27% | 2025 |
|---|
| 396, Lady Margaret Road183 m away | 127 m² | 150 m² | +23 m² +18% | 2022 |
|---|
| 4, Frensham Close519 m away | 34 m² | 57 m² | +23 m² +68% | 2021 |
|---|
| 31, Frensham Close542 m away | 56 m² | 79 m² | +23 m² +41% | 2020 |
|---|
| 32, Shelley Crescent949 m away | 42 m² | 65 m² | +23 m² +55% | 2019 |
|---|
| 427, Lady Margaret Road253 m away | 146 m² | 169 m² | +23 m² +16% | 2017 |
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| 118, Glencoe Road765 m away | 46 m² | 69 m² | +23 m² +50% | 2016 |
|---|
| 102, Rutland Road216 m away | 22 m² | 45 m² | +23 m² +105% | 2014 |
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| 312, Lady Margaret Road314 m away | 88 m² | 110 m² | +22 m² +25% | 2025 |
|---|
| 17, Rosedene Avenue942 m away | 84 m² | 106 m² | +22 m² +26% | 2025 |
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| 175, Westbury Avenue386 m away | 76 m² | 98 m² | +22 m² +29% | 2024 |
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| 67, Allenby Road827 m away | 110 m² | 132 m² | +22 m² +20% | 2022 |
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| 238, Allenby Road659 m away | 78 m² | 100 m² | +22 m² +28% | 2021 |
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| 17, Westlake Close846 m away | 65 m² | 87 m² | +22 m² +34% | 2020 |
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| 47, Patching Way934 m away | 74 m² | 96 m² | +22 m² +30% | 2016 |
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| 5, Hart Grove394 m away | 63 m² | 85 m² | +22 m² +35% | 2013 |
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| 24, Avon Road836 m away | 70 m² | 92 m² | +22 m² +31% | 2013 |
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| 266, Allenby Road568 m away | 95 m² | 116 m² | +21 m² +22% | 2024 |
|---|
| 2, Aspen Lane886 m away | 75 m² | 96 m² | +21 m² +28% | 2024 |
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| 4, Cressage Close345 m away | 63 m² | 84 m² | +21 m² +33% | 2020 |
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| 2, Home Close960 m away | 85 m² | 106 m² | +21 m² +25% | 2019 |
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| 28, Hillside Road401 m away | 83 m² | 104 m² | +21 m² +25% | 2015 |
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| 17, Bassett Way992 m away | 80 m² | 101 m² | +21 m² +26% | 2014 |
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| 27, Hazeltree Lane885 m away | 78 m² | 98 m² | +20 m² +26% | 2026 |
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| 23, Blisworth Close707 m away | 59 m² | 79 m² | +20 m² +34% | 2025 |
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| 17, Enmore Road549 m away | 80 m² | 100 m² | +20 m² +25% | 2022 |
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| 1, Allenby Road937 m away | 76 m² | 96 m² | +20 m² +26% | 2022 |
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| 3, Allendale Avenue829 m away | 86 m² | 106 m² | +20 m² +23% | 2019 |
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| 2, Wendover Close963 m away | 61 m² | 81 m² | +20 m² +33% | 2016 |
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| 25, Airdrie Close725 m away | 59 m² | 79 m² | +20 m² +34% | 2015 |
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| 141, Glencoe Road765 m away | 82 m² | 102 m² | +20 m² +24% | 2015 |
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| 9, Maple Grove57 m away | 83 m² | 103 m² | +20 m² +24% | 2014 |
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| 39, Pikestone Close774 m away | 60 m² | 80 m² | +20 m² +33% | 2014 |
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| 67, Ascot Gardens200 m away | 61 m² | 80 m² | +19 m² +31% | 2026 |
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| 133, Ascot Gardens126 m away | 53 m² | 72 m² | +19 m² +36% | 2025 |
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| 13, Hazeltree Lane885 m away | 78 m² | 97 m² | +19 m² +24% | 2024 |
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| 34, Sunnycroft Road451 m away | 71 m² | 90 m² | +19 m² +27% | 2022 |
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| 2, Lynwood Gardens493 m away | 71 m² | 90 m² | +19 m² +27% | 2020 |
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| 1, Sunnycroft Road451 m away | 86 m² | 105 m² | +19 m² +22% | 2016 |
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| 81, Telford Way654 m away | 39 m² | 57 m² | +18 m² +46% | 2026 |
|---|
| 3, Telford Way708 m away | 59 m² | 77 m² | +18 m² +31% | 2026 |
|---|
| 96, Somerset Road411 m away | 99 m² | 117 m² | +18 m² +18% | 2025 |
|---|
| 8, Somerset Road455 m away | 100 m² | 118 m² | +18 m² +18% | 2024 |
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| 86, Rutland Road216 m away | 61 m² | 79 m² | +18 m² +30% | 2023 |
|---|
| 24, Telford Way654 m away | 60 m² | 78 m² | +18 m² +30% | 2019 |
|---|
| 20, Garrick Road981 m away | 98 m² | 116 m² | +18 m² +18% | 2019 |
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| 137, Glencoe Road765 m away | 114 m² | 132 m² | +18 m² +16% | 2015 |
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| 14, Hurley Road910 m away | 96 m² | 114 m² | +18 m² +19% | 2015 |
|---|
| 5, Garrick Road981 m away | 75 m² | 93 m² | +18 m² +24% | 2013 |
|---|
| 2, Selby Gardens382 m away | 74 m² | 91 m² | +17 m² +23% | 2026 |
|---|
| 5, Braund Avenue743 m away | 80 m² | 97 m² | +17 m² +21% | 2024 |
|---|
| 23, St Peters Road506 m away | 96 m² | 113 m² | +17 m² +18% | 2023 |
|---|
| 94, Ruislip Road875 m away | 82 m² | 99 m² | +17 m² +21% | 2023 |
|---|
| 34, Byron Way997 m away | 46 m² | 63 m² | +17 m² +37% | 2022 |
|---|
| 21, Brazier Crescent422 m away | 57 m² | 74 m² | +17 m² +30% | 2018 |
|---|
| 39, Patching Way934 m away | 66 m² | 83 m² | +17 m² +26% | 2016 |
|---|
| 424, Lady Margaret Road330 m away | 87 m² | 104 m² | +17 m² +20% | 2015 |
|---|
| 15, Kingsash Drive968 m away | 60 m² | 77 m² | +17 m² +28% | 2015 |
|---|
| 6, Glenorchy Close602 m away | 90 m² | 107 m² | +17 m² +19% | 2014 |
|---|
| 77, Aspen Lane797 m away | 100 m² | 117 m² | +17 m² +17% | 2014 |
|---|
| 32, Braunston Drive797 m away | 59 m² | 76 m² | +17 m² +29% | 2014 |
|---|
| 72, Rectory Park Avenue995 m away | 55 m² | 72 m² | +17 m² +31% | 2014 |
|---|
| 79, Telford Way654 m away | 37 m² | 53 m² | +16 m² +43% | 2026 |
|---|
| 209, Allenby Road672 m away | 70 m² | 86 m² | +16 m² +23% | 2025 |
|---|
| 32, Devonshire Road242 m away | 77 m² | 93 m² | +16 m² +21% | 2024 |
|---|
| 199a, Lady Margaret Road730 m away | 84 m² | 100 m² | +16 m² +19% | 2024 |
|---|
| 187, Somerset Road604 m away | 67 m² | 83 m² | +16 m² +24% | 2023 |
|---|
| 15, Rosedene Avenue942 m away | 81 m² | 97 m² | +16 m² +20% | 2023 |
|---|
| 334, Allenby Road545 m away | 62 m² | 78 m² | +16 m² +26% | 2022 |
|---|
| 11, Devonshire Road242 m away | 48 m² | 64 m² | +16 m² +33% | 2019 |
|---|
| 4, Westlake Close846 m away | 61 m² | 77 m² | +16 m² +26% | 2015 |
|---|
| 114, Evelyn Grove591 m away | 82 m² | 98 m² | +16 m² +20% | 2013 |
|---|
| 83, Cranleigh Gardens649 m away | 57 m² | 73 m² | +16 m² +28% | 2009 |
|---|
| 19, Maple Grove57 m away | 89 m² | 104 m² | +15 m² +17% | 2026 |
|---|
| 56, Westbury Avenue337 m away | 44 m² | 59 m² | +15 m² +34% | 2026 |
|---|
| 26, Evelyn Grove860 m away | 78 m² | 93 m² | +15 m² +19% | 2025 |
|---|
| 22, St Ursula Road634 m away | 64 m² | 79 m² | +15 m² +23% | 2022 |
|---|
| 21, Sharpness Close796 m away | 47 m² | 62 m² | +15 m² +32% | 2015 |
|---|
| 31, Stickleton Close1000 m away | 48 m² | 63 m² | +15 m² +31% | 2014 |
|---|
| 44, Ramulis Drive942 m away | 35 m² | 50 m² | +15 m² +43% | 2013 |
|---|