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 GU1 4UU
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 |
|---|---|---|---|---|
| 2, Pewley Hill979 m away | 186 m² | 368 m² | +182 m² +98% | 2022 |
| 102, The Mount836 m away | 131 m² | 255 m² | +124 m² +95% | 2022 |
| 14, Mountside759 m away | 104 m² | 219 m² | +115 m² +111% | 2023 |
| 34, Artillery Terrace557 m away | 141 m² | 245 m² | +104 m² +74% | 2025 |
| 38, Farnham Road476 m away | 146 m² | 246 m² | +100 m² +68% | 2023 |
| 7, Victoria Road969 m away | 140 m² | 229 m² | +89 m² +64% | 2021 |
| 34, Denzil Road402 m away | 87 m² | 174 m² | +87 m² +100% | 2012 |
| 52, Lynwood526 m away | 75 m² | 160 m² | +85 m² +113% | 2025 |
| 22, Mountside759 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.
| 223 m² |
| +83 m² +59% |
| 2021 |
| 85, Farnham Road877 m away | 210 m² | 285 m² | +75 m² +36% | 2014 |
|---|
| 28, Elmside982 m away | 99 m² | 170 m² | +71 m² +72% | 2023 |
|---|
| 14, Bury Fields786 m away | 69 m² | 136 m² | +67 m² +97% | 2024 |
|---|
| 6, Mountside759 m away | 96 m² | 163 m² | +67 m² +70% | 2020 |
|---|
| 16, Stocton Close857 m away | 89 m² | 156 m² | +67 m² +75% | 2019 |
|---|
| 62, Sydenham Road931 m away | 110 m² | 176 m² | +66 m² +60% | 2025 |
|---|
| 13, Denzil Road402 m away | 100 m² | 165 m² | +65 m² +65% | 2026 |
|---|
| 112, Guildford Park Avenue284 m away | 82 m² | 146 m² | +64 m² +78% | 2018 |
|---|
| 9, Quarry Street790 m away | 218 m² | 281 m² | +63 m² +29% | 2025 |
|---|
| 11, Old Court Road835 m away | 70 m² | 132 m² | +62 m² +89% | 2014 |
|---|
| 41, Markenfield Road586 m away | 72 m² | 129 m² | +57 m² +79% | 2021 |
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| 66, Ludlow Road406 m away | 73 m² | 130 m² | +57 m² +78% | 2020 |
|---|
| 2, Mountside759 m away | 101 m² | 158 m² | +57 m² +56% | 2012 |
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| 2, Irwin Road915 m away | 152 m² | 208 m² | +56 m² +37% | 2026 |
|---|
| 46, Markenfield Road586 m away | 70 m² | 126 m² | +56 m² +80% | 2022 |
|---|
| 24, Markenfield Road553 m away | 127 m² | 183 m² | +56 m² +44% | 2020 |
|---|
| 12, Mary Road154 m away | 85 m² | 140 m² | +55 m² +65% | 2022 |
|---|
| 31, Testard Road525 m away | 100 m² | 155 m² | +55 m² +55% | 2019 |
|---|
| 29, Josephs Road954 m away | 92 m² | 146 m² | +54 m² +59% | 2020 |
|---|
| 7, Testard Road503 m away | 95 m² | 149 m² | +54 m² +57% | 2017 |
|---|
| 80, Stoke Road679 m away | 85 m² | 139 m² | +54 m² +64% | 2013 |
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| 3, Dunsdon Avenue459 m away | 75 m² | 128 m² | +53 m² +71% | 2016 |
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| 4, Dunsdon Avenue459 m away | 77 m² | 128 m² | +51 m² +66% | 2016 |
|---|
| 9, Walnut Tree Close122 m away | 56 m² | 106 m² | +50 m² +89% | 2018 |
|---|
| 46, Wodeland Avenue658 m away | 103 m² | 152 m² | +49 m² +48% | 2026 |
|---|
| 1, Artillery Road403 m away | 89 m² | 138 m² | +49 m² +55% | 2023 |
|---|
| 22, Old Palace Road844 m away | 74 m² | 123 m² | +49 m² +66% | 2013 |
|---|
| 63, Stocton Road917 m away | 77 m² | 125 m² | +48 m² +62% | 2024 |
|---|
| 33, Millmead Terrace771 m away | 79 m² | 127 m² | +48 m² +61% | 2023 |
|---|
| 27, Foxenden Road902 m away | 85 m² | 133 m² | +48 m² +56% | 2021 |
|---|
| 16, Acacia Road747 m away | 67 m² | 114 m² | +47 m² +70% | 2022 |
|---|
| 72, Agraria Road618 m away | 91 m² | 138 m² | +47 m² +52% | 2016 |
|---|
| 36, Lynwood526 m away | 91 m² | 138 m² | +47 m² +52% | 2014 |
|---|
| 29, Irwin Road942 m away | 94 m² | 140 m² | +46 m² +49% | 2025 |
|---|
| 1, Madrid Road432 m away | 103 m² | 149 m² | +46 m² +45% | 2024 |
|---|
| 24, Bray Road547 m away | 89 m² | 135 m² | +46 m² +52% | 2020 |
|---|
| 6, Kings Road815 m away | 94 m² | 139 m² | +45 m² +48% | 2026 |
|---|
| 66, Nightingale Road876 m away | 81 m² | 126 m² | +45 m² +56% | 2026 |
|---|
| 34, Ludlow Road406 m away | 70 m² | 115 m² | +45 m² +64% | 2024 |
|---|
| 46, Nightingale Road876 m away | 82 m² | 127 m² | +45 m² +55% | 2017 |
|---|
| 9, Testard Road503 m away | 91 m² | 136 m² | +45 m² +49% | 2010 |
|---|
| 9, York Road751 m away | 59 m² | 104 m² | +45 m² +76% | 2009 |
|---|
| 29, Elmside982 m away | 86 m² | 130 m² | +44 m² +51% | 2022 |
|---|
| 9, Pewley Hill979 m away | 152 m² | 196 m² | +44 m² +29% | 2016 |
|---|
| 15, Iveagh Road719 m away | 116 m² | 160 m² | +44 m² +38% | 2009 |
|---|
| 22, Dapdune Road529 m away | 94 m² | 137 m² | +43 m² +46% | 2025 |
|---|
| 34, The Oval816 m away | 85 m² | 128 m² | +43 m² +51% | 2025 |
|---|
| 56, The Oval702 m away | 73 m² | 116 m² | +43 m² +59% | 2023 |
|---|
| 29, Gardner Road601 m away | 74 m² | 117 m² | +43 m² +58% | 2016 |
|---|
| 33, Stocton Road823 m away | 74 m² | 117 m² | +43 m² +58% | 2014 |
|---|
| 39, Bray Road572 m away | 94 m² | 136 m² | +42 m² +45% | 2026 |
|---|
| 104, Wodeland Avenue916 m away | 163 m² | 205 m² | +42 m² +26% | 2023 |
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| 8, Elmside982 m away | 85 m² | 127 m² | +42 m² +49% | 2023 |
|---|
| 58, Wodeland Avenue714 m away | 139 m² | 181 m² | +42 m² +30% | 2018 |
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| 48, Stoke Fields593 m away | 94 m² | 135 m² | +41 m² +44% | 2023 |
|---|
| 19, Testard Road525 m away | 85 m² | 126 m² | +41 m² +48% | 2022 |
|---|
| 4, Chestnut Road676 m away | 76 m² | 116 m² | +40 m² +53% | 2025 |
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| 51, Denzil Road361 m away | 94 m² | 134 m² | +40 m² +43% | 2024 |
|---|
| 27, Guildford Park Avenue289 m away | 38 m² | 78 m² | +40 m² +105% | 2022 |
|---|
| 15, Elmside982 m away | 103 m² | 143 m² | +40 m² +39% | 2022 |
|---|
| Flat 3, Abbots Yard, Walnut Tree Close86 m away | 37 m² | 77 m² | +40 m² +108% | 2019 |
|---|
| 20, Springfield Road870 m away | 84 m² | 124 m² | +40 m² +48% | 2016 |
|---|
| Flat 76, Printing House Square, Martyr Road625 m away | 53 m² | 92 m² | +39 m² +74% | 2023 |
|---|
| 26a, Recreation Road732 m away | 50 m² | 89 m² | +39 m² +78% | 2022 |
|---|
| 2, Burnham Gate758 m away | 63 m² | 102 m² | +39 m² +62% | 2022 |
|---|
| 111, Farnham Road877 m away | 154 m² | 193 m² | +39 m² +25% | 2021 |
|---|
| 50, Markenfield Road586 m away | 88 m² | 127 m² | +39 m² +44% | 2020 |
|---|
| 13, Acacia Road747 m away | 88 m² | 127 m² | +39 m² +44% | 2020 |
|---|
| 5, Chestnut Road676 m away | 76 m² | 115 m² | +39 m² +51% | 2014 |
|---|
| 19, Church Road416 m away | 84 m² | 123 m² | +39 m² +46% | 2011 |
|---|
| 22, Guildford Park Avenue289 m away | 49 m² | 87 m² | +38 m² +78% | 2019 |
|---|
| 8, Gardner Road601 m away | 82 m² | 120 m² | +38 m² +46% | 2019 |
|---|
| 8, Finch Road755 m away | 68 m² | 106 m² | +38 m² +56% | 2018 |
|---|
| 33, Denzil Road402 m away | 92 m² | 129 m² | +37 m² +40% | 2024 |
|---|
| 45, Agraria Road617 m away | 94 m² | 131 m² | +37 m² +39% | 2024 |
|---|
| 9, Artillery Road490 m away | 103 m² | 140 m² | +37 m² +36% | 2021 |
|---|
| 28, Leas Road205 m away | 65 m² | 102 m² | +37 m² +57% | 2018 |
|---|
| 19, Gardner Road601 m away | 81 m² | 118 m² | +37 m² +46% | 2013 |
|---|
| 38, Markenfield Road586 m away | 79 m² | 115 m² | +36 m² +46% | 2025 |
|---|
| Veryan, Markenfield Road698 m away | 101 m² | 137 m² | +36 m² +36% | 2021 |
|---|
| 32, Scholars Walk391 m away | 97 m² | 133 m² | +36 m² +37% | 2020 |
|---|
| 27, Recreation Road732 m away | 90 m² | 126 m² | +36 m² +40% | 2019 |
|---|
| 13, Agraria Road675 m away | 85 m² | 120 m² | +35 m² +41% | 2021 |
|---|
| 18, Condor Court716 m away | 51 m² | 86 m² | +35 m² +69% | 2018 |
|---|
| 26, Josephs Road982 m away | 95 m² | 130 m² | +35 m² +37% | 2016 |
|---|
| 17, Markenfield Road553 m away | 90 m² | 124 m² | +34 m² +38% | 2024 |
|---|
| 11, The Courtyard, Stoke Road677 m away | 55 m² | 89 m² | +34 m² +62% | 2024 |
|---|
| 10, William Road246 m away | 87 m² | 121 m² | +34 m² +39% | 2023 |
|---|
| 14, Church Road416 m away | 97 m² | 131 m² | +34 m² +35% | 2021 |
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| 20, Dapdune Road529 m away | 104 m² | 138 m² | +34 m² +33% | 2016 |
|---|
| 40, Markenfield Road586 m away | 70 m² | 104 m² | +34 m² +49% | 2010 |
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| 1b, Sydenham Road889 m away | 50 m² | 84 m² | +34 m² +68% | 2010 |
|---|
| 20, Park Road642 m away | 71 m² | 104 m² | +33 m² +46% | 2026 |
|---|
| 22, William Road246 m away | 110 m² | 143 m² | +33 m² +30% | 2023 |
|---|
| 49, Agraria Road617 m away | 87 m² | 120 m² | +33 m² +38% | 2022 |
|---|
| 17, Agraria Road675 m away | 91 m² | 124 m² | +33 m² +36% | 2022 |
|---|
| 46, Haydon Place525 m away | 121 m² | 154 m² | +33 m² +27% | 2019 |
|---|
| 60, Josephs Road982 m away | 79 m² | 112 m² | +33 m² +42% | 2019 |
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| 5, Dunsdon Avenue459 m away | 87 m² | 120 m² | +33 m² +38% | 2016 |
|---|
| 7, Kings Road815 m away | 96 m² | 129 m² | +33 m² +34% | 2015 |
|---|
| 2, Artillery Road403 m away | 54 m² | 86 m² | +32 m² +59% | 2025 |
|---|
| 40, Springfield Road870 m away | 95 m² | 127 m² | +32 m² +34% | 2025 |
|---|
| 35, Sydenham Road931 m away | 37 m² | 69 m² | +32 m² +86% | 2025 |
|---|
| 40, The Oval816 m away | 73 m² | 105 m² | +32 m² +44% | 2024 |
|---|
| 26, The Oval831 m away | 97 m² | 129 m² | +32 m² +33% | 2020 |
|---|
| 31, Artillery Road490 m away | 119 m² | 150 m² | +31 m² +26% | 2026 |
|---|
| 10, Hollow Close518 m away | 61 m² | 92 m² | +31 m² +51% | 2025 |
|---|
| 8a, Recreation Road668 m away | 56 m² | 87 m² | +31 m² +55% | 2024 |
|---|
| Keric, Markenfield Road698 m away | 122 m² | 153 m² | +31 m² +25% | 2024 |
|---|
| 13, Millmead Terrace775 m away | 101 m² | 132 m² | +31 m² +31% | 2024 |
|---|
| 4, Artillery Road403 m away | 112 m² | 143 m² | +31 m² +28% | 2020 |
|---|
| 44, Lynwood526 m away | 57 m² | 88 m² | +31 m² +54% | 2019 |
|---|
| 61, Dapdune Road535 m away | 116 m² | 147 m² | +31 m² +27% | 2019 |
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| 28, Dapdune Road529 m away | 91 m² | 122 m² | +31 m² +34% | 2014 |
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| 2, Park Road642 m away | 77 m² | 108 m² | +31 m² +40% | 2013 |
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| 18, Prospect Court, Sydenham Road955 m away | 69 m² | 100 m² | +31 m² +45% | 2011 |
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| 25, Madrid Road528 m away | 78 m² | 108 m² | +30 m² +38% | 2024 |
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| 65, Drummond Road501 m away | 65 m² | 95 m² | +30 m² +46% | 2022 |
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| 58, George Road489 m away | 87 m² | 117 m² | +30 m² +34% | 2021 |
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| 20, Testard Road525 m away | 93 m² | 122 m² | +29 m² +31% | 2021 |
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| 6, Margaret Road232 m away | 80 m² | 109 m² | +29 m² +36% | 2019 |
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| 40, Agraria Road617 m away | 95 m² | 124 m² | +29 m² +31% | 2019 |
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| 17, Springfield Road848 m away | 118 m² | 147 m² | +29 m² +25% | 2018 |
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| 25a, Recreation Road732 m away | 55 m² | 84 m² | +29 m² +53% | 2015 |
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| 26, Artillery Terrace557 m away | 100 m² | 128 m² | +28 m² +28% | 2026 |
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| 156, Guildford Park Avenue284 m away | 98 m² | 126 m² | +28 m² +29% | 2025 |
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| 31, Gardner Road601 m away | 76 m² | 104 m² | +28 m² +37% | 2025 |
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| 45, Church Road454 m away | 107 m² | 135 m² | +28 m² +26% | 2024 |
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| 4, Testard Road503 m away | 112 m² | 140 m² | +28 m² +25% | 2022 |
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| 31, Alresford Road886 m away | 76 m² | 104 m² | +28 m² +37% | 2020 |
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| 190, Guildford Park Avenue367 m away | 67 m² | 95 m² | +28 m² +42% | 2015 |
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| 76, Sydenham Road991 m away | 77 m² | 104 m² | +27 m² +35% | 2026 |
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| 56, Denzil Road361 m away | 121 m² | 148 m² | +27 m² +22% | 2025 |
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| 62, Agraria Road618 m away | 65 m² | 92 m² | +27 m² +42% | 2023 |
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| 84, Nightingale Road876 m away | 42 m² | 69 m² | +27 m² +64% | 2023 |
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| 101, Wodeland Avenue916 m away | 146 m² | 173 m² | +27 m² +18% | 2023 |
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| 9, Condor Court716 m away | 46 m² | 73 m² | +27 m² +59% | 2020 |
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| 79, Denzil Road361 m away | 60 m² | 87 m² | +27 m² +45% | 2019 |
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| 21, Denzil Road402 m away | 92 m² | 119 m² | +27 m² +29% | 2019 |
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| 60, Sydenham Road931 m away | 91 m² | 118 m² | +27 m² +30% | 2019 |
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| Bury Fields House, Bury Fields786 m away | 65 m² | 92 m² | +27 m² +42% | 2016 |
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| 29, Agraria Road617 m away | 86 m² | 113 m² | +27 m² +31% | 2015 |
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| 45, Recreation Road812 m away | 78 m² | 105 m² | +27 m² +35% | 2012 |
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| 9, George Road471 m away | 72 m² | 98 m² | +26 m² +36% | 2026 |
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| Flat 2, 39, York Road848 m away | 24 m² | 50 m² | +26 m² +108% | 2025 |
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| 19, Walnut Tree Close122 m away | 66 m² | 92 m² | +26 m² +39% | 2023 |
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| 11, Denzil Road402 m away | 73 m² | 99 m² | +26 m² +36% | 2020 |
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| 77, Denzil Road361 m away | 64 m² | 90 m² | +26 m² +41% | 2019 |
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| Flat 2, 13, South Hill955 m away | 46 m² | 72 m² | +26 m² +57% | 2019 |
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| 66, Sydenham Road991 m away | 46 m² | 72 m² | +26 m² +57% | 2016 |
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| 63, Ludlow Road406 m away | 60 m² | 86 m² | +26 m² +43% | 2015 |
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| 39, Wodeland Avenue658 m away | 151 m² | 176 m² | +25 m² +17% | 2024 |
|---|
| 6, Mary Road154 m away | 80 m² | 105 m² | +25 m² +31% | 2022 |
|---|
| 76, Guildford Park Avenue230 m away | 77 m² | 102 m² | +25 m² +32% | 2022 |
|---|
| 71, Agraria Road618 m away | 83 m² | 108 m² | +25 m² +30% | 2022 |
|---|
| 15, Victoria Road969 m away | 114 m² | 139 m² | +25 m² +22% | 2022 |
|---|
| 55, Denzil Road361 m away | 101 m² | 126 m² | +25 m² +25% | 2021 |
|---|
| 65, Ludlow Road406 m away | 65 m² | 90 m² | +25 m² +38% | 2021 |
|---|
| 67, George Road489 m away | 82 m² | 107 m² | +25 m² +30% | 2020 |
|---|
| 29, Alresford Road886 m away | 79 m² | 104 m² | +25 m² +32% | 2020 |
|---|
| 25, Irwin Road942 m away | 134 m² | 159 m² | +25 m² +19% | 2020 |
|---|
| 5, Kings Road815 m away | 69 m² | 94 m² | +25 m² +36% | 2017 |
|---|
| 20, Gardner Road601 m away | 79 m² | 104 m² | +25 m² +32% | 2014 |
|---|
| 9, William Road246 m away | 89 m² | 114 m² | +25 m² +28% | 2013 |
|---|
| Flat 1, 63, York Road984 m away | 44 m² | 69 m² | +25 m² +57% | 2012 |
|---|
| 1, Gardner Road601 m away | 153 m² | 178 m² | +25 m² +16% | 2011 |
|---|
| 5a, Victoria Road969 m away | 64 m² | 88 m² | +24 m² +38% | 2024 |
|---|
| 1, Rookwood Court971 m away | 77 m² | 101 m² | +24 m² +31% | 2023 |
|---|
| Flat 21, Abbots Yard, Walnut Tree Close86 m away | 75 m² | 99 m² | +24 m² +32% | 2021 |
|---|
| Flat 5, Aquatico, Walnut Tree Close122 m away | 55 m² | 79 m² | +24 m² +44% | 2021 |
|---|
| 16, Oxford Road919 m away | 81 m² | 105 m² | +24 m² +30% | 2020 |
|---|
| 54, Stoke Fields593 m away | 88 m² | 112 m² | +24 m² +27% | 2014 |
|---|
| 23, Wodeland Avenue596 m away | 127 m² | 150 m² | +23 m² +18% | 2025 |
|---|
| 34, Agraria Road617 m away | 109 m² | 132 m² | +23 m² +21% | 2025 |
|---|
| 10, Margaret Road232 m away | 81 m² | 104 m² | +23 m² +28% | 2023 |
|---|
| 5, Mary Road154 m away | 81 m² | 104 m² | +23 m² +28% | 2022 |
|---|
| 73, Agraria Road618 m away | 43 m² | 66 m² | +23 m² +53% | 2021 |
|---|
| Flat 3, 63, York Road984 m away | 69 m² | 92 m² | +23 m² +33% | 2021 |
|---|
| 18, Springfield Road870 m away | 131 m² | 154 m² | +23 m² +18% | 2020 |
|---|
| 1, Poyle Terrace927 m away | 118 m² | 141 m² | +23 m² +19% | 2016 |
|---|
| 29, Wodeland Avenue658 m away | 99 m² | 122 m² | +23 m² +23% | 2012 |
|---|
| 13, Wherwell Road560 m away | 83 m² | 106 m² | +23 m² +28% | 2011 |
|---|
| 70, Ludlow Road406 m away | 69 m² | 92 m² | +23 m² +33% | 2010 |
|---|
| 31, Bray Road572 m away | 96 m² | 118 m² | +22 m² +23% | 2026 |
|---|
| 86, Nightingale Road876 m away | 123 m² | 145 m² | +22 m² +18% | 2026 |
|---|
| 17, Josephs Road954 m away | 91 m² | 113 m² | +22 m² +24% | 2025 |
|---|
| 44, Recreation Road812 m away | 84 m² | 106 m² | +22 m² +26% | 2022 |
|---|
| 71, The Chase918 m away | 84 m² | 106 m² | +22 m² +26% | 2022 |
|---|
| 35, Drummond Road512 m away | 47 m² | 69 m² | +22 m² +47% | 2021 |
|---|
| 29, Stoke Fields593 m away | 94 m² | 116 m² | +22 m² +23% | 2020 |
|---|
| 16, College Road425 m away | 76 m² | 98 m² | +22 m² +29% | 2019 |
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