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 CM13 1BJ
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 |
|---|---|---|---|---|
| Little Paddock, 8, Challacombe Close964 m away | 204 m² | 493 m² | +289 m² +142% | 2015 |
| 63, Mount Avenue677 m away | 165 m² | 394 m² | +229 m² +139% | 2025 |
| Ormondhurst, Mount Avenue677 m away | 170 m² | 360 m² | +190 m² +112% | 2018 |
| Lofthus, Mallard Way971 m away | 123 m² | 301 m² | +178 m² +145% | 2021 |
| 26, Mount Avenue837 m away | 382 m² | 554 m² | +172 m² +45% | 2023 |
| Russets, Darcy Close645 m away | 122 m² | 282 m² | +160 m² +131% | 2025 |
| 2, Shenfield Gardens566 m away | 112 m² | 272 m² | +160 m² +143% | 2019 |
| 1, Longaford Way860 m away | 154 m² | 308 m² | +154 m² +100% | 2025 |
| Oakwood, 51, Park Avenue |
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.
| 202 m² |
| 354 m² |
| +152 m² +75% |
| 2023 |
| 89, Rayleigh Road179 m away | 115 m² | 266 m² | +151 m² +131% | 2015 |
|---|
| 178, Hanging Hill Lane883 m away | 151 m² | 292 m² | +141 m² +93% | 2020 |
|---|
| 8, Tennyson Road562 m away | 116 m² | 253 m² | +137 m² +118% | 2020 |
|---|
| Fairoak, Kandlewood719 m away | 212 m² | 338 m² | +126 m² +59% | 2025 |
|---|
| 8, Willow Close801 m away | 83 m² | 207 m² | +124 m² +149% | 2025 |
|---|
| Greenloaning, 8, Herington Grove997 m away | 159 m² | 276 m² | +117 m² +74% | 2018 |
|---|
| 6, Janmead533 m away | 112 m² | 228 m² | +116 m² +104% | 2020 |
|---|
| 85, Sebastian Avenue933 m away | 86 m² | 201 m² | +115 m² +134% | 2023 |
|---|
| 32, Arnolds Avenue775 m away | 91 m² | 206 m² | +115 m² +126% | 2019 |
|---|
| 60, Rayleigh Road510 m away | 107 m² | 219 m² | +112 m² +105% | 2020 |
|---|
| 34, Hall Green Lane618 m away | 118 m² | 228 m² | +110 m² +93% | 2025 |
|---|
| 21, Cory Drive649 m away | 132 m² | 242 m² | +110 m² +83% | 2025 |
|---|
| Eversley, Kingsley Road656 m away | 142 m² | 249 m² | +107 m² +75% | 2024 |
|---|
| 55, Hall Green Lane758 m away | 133 m² | 240 m² | +107 m² +80% | 2019 |
|---|
| 13, Tennyson Road562 m away | 154 m² | 259 m² | +105 m² +68% | 2021 |
|---|
| 25, Tennyson Road562 m away | 133 m² | 235 m² | +102 m² +77% | 2015 |
|---|
| 4, Lordship Close699 m away | 127 m² | 228 m² | +101 m² +80% | 2020 |
|---|
| 11, Poplar Drive311 m away | 127 m² | 225 m² | +98 m² +77% | 2025 |
|---|
| 24, Delta Road604 m away | 92 m² | 187 m² | +95 m² +103% | 2019 |
|---|
| 18, Willow Close801 m away | 81 m² | 174 m² | +93 m² +115% | 2026 |
|---|
| 4, Willow Close801 m away | 71 m² | 161 m² | +90 m² +127% | 2024 |
|---|
| 239, Rayleigh Road549 m away | 62 m² | 149 m² | +87 m² +140% | 2021 |
|---|
| 16, Willow Close801 m away | 75 m² | 160 m² | +85 m² +113% | 2014 |
|---|
| St. Briavels, Greenway986 m away | 231 m² | 315 m² | +84 m² +36% | 2023 |
|---|
| 18, Park Avenue785 m away | 118 m² | 202 m² | +84 m² +71% | 2021 |
|---|
| 8, Woodland Close538 m away | 58 m² | 140 m² | +82 m² +141% | 2019 |
|---|
| 227, Hanging Hill Lane137 m away | 121 m² | 200 m² | +79 m² +65% | 2019 |
|---|
| 4, Arnolds Avenue652 m away | 56 m² | 134 m² | +78 m² +139% | 2024 |
|---|
| 222, Hanging Hill Lane313 m away | 172 m² | 249 m² | +77 m² +45% | 2025 |
|---|
| 113, Rayleigh Road199 m away | 93 m² | 170 m² | +77 m² +83% | 2017 |
|---|
| 77, Queenswood Avenue811 m away | 82 m² | 157 m² | +75 m² +91% | 2023 |
|---|
| 53, Park Avenue836 m away | 179 m² | 252 m² | +73 m² +41% | 2026 |
|---|
| 7, Lyndhurst Way662 m away | 102 m² | 174 m² | +72 m² +71% | 2024 |
|---|
| 26, Park Avenue785 m away | 124 m² | 196 m² | +72 m² +58% | 2019 |
|---|
| 15, Willow Close801 m away | 71 m² | 142 m² | +71 m² +100% | 2012 |
|---|
| 121, Rayleigh Road199 m away | 214 m² | 284 m² | +70 m² +33% | 2020 |
|---|
| 16, Hunter Avenue956 m away | 63 m² | 132 m² | +69 m² +110% | 2020 |
|---|
| 16, Oliver Road864 m away | 91 m² | 159 m² | +68 m² +75% | 2025 |
|---|
| 65, Woodland Avenue479 m away | 68 m² | 136 m² | +68 m² +100% | 2022 |
|---|
| 6, Delta Road604 m away | 71 m² | 139 m² | +68 m² +96% | 2016 |
|---|
| 3, Mount Pleasant Avenue898 m away | 86 m² | 153 m² | +67 m² +78% | 2022 |
|---|
| 2, Sunray Avenue988 m away | 89 m² | 156 m² | +67 m² +75% | 2020 |
|---|
| 11, Janmead533 m away | 164 m² | 229 m² | +65 m² +40% | 2021 |
|---|
| 56, Walton Gardens746 m away | 58 m² | 123 m² | +65 m² +112% | 2017 |
|---|
| Hillcroft, Alexander Lane748 m away | 105 m² | 170 m² | +65 m² +62% | 2016 |
|---|
| 67, Hall Green Lane854 m away | 161 m² | 225 m² | +64 m² +40% | 2021 |
|---|
| 6, Graham Close602 m away | 95 m² | 159 m² | +64 m² +67% | 2019 |
|---|
| 4, Park Avenue785 m away | 148 m² | 210 m² | +62 m² +42% | 2024 |
|---|
| 40, Burses Way494 m away | 96 m² | 158 m² | +62 m² +65% | 2015 |
|---|
| 19, Cory Drive649 m away | 126 m² | 186 m² | +60 m² +48% | 2024 |
|---|
| 89, Woodland Avenue598 m away | 90 m² | 150 m² | +60 m² +67% | 2021 |
|---|
| 46, Oliver Road988 m away | 88 m² | 148 m² | +60 m² +68% | 2021 |
|---|
| 93, Sebastian Avenue933 m away | 62 m² | 122 m² | +60 m² +97% | 2018 |
|---|
| 8, Burses Way325 m away | 90 m² | 149 m² | +59 m² +66% | 2022 |
|---|
| 2, Farm Close261 m away | 82 m² | 140 m² | +58 m² +71% | 2025 |
|---|
| 91, Long Ridings Avenue556 m away | 89 m² | 147 m² | +58 m² +65% | 2025 |
|---|
| Morada, Mount Avenue792 m away | 228 m² | 286 m² | +58 m² +25% | 2011 |
|---|
| 17, Tennyson Road562 m away | 132 m² | 189 m² | +57 m² +43% | 2022 |
|---|
| 3, Greyfriars753 m away | 220 m² | 277 m² | +57 m² +26% | 2016 |
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| 10, Leafy Way868 m away | 98 m² | 154 m² | +56 m² +57% | 2020 |
|---|
| 17, Alpha Road549 m away | 45 m² | 99 m² | +54 m² +120% | 2018 |
|---|
| 17, Surman Crescent477 m away | 96 m² | 150 m² | +54 m² +56% | 2014 |
|---|
| 42, Pine Crescent870 m away | 72 m² | 126 m² | +54 m² +75% | 2013 |
|---|
| 7, Farm Close261 m away | 129 m² | 182 m² | +53 m² +41% | 2014 |
|---|
| 26, Oliver Road988 m away | 88 m² | 140 m² | +52 m² +59% | 2012 |
|---|
| 48, Hunter Avenue956 m away | 91 m² | 142 m² | +51 m² +56% | 2023 |
|---|
| 8, Rayleigh Road889 m away | 79 m² | 130 m² | +51 m² +65% | 2020 |
|---|
| 200, Hanging Hill Lane546 m away | 118 m² | 168 m² | +50 m² +42% | 2026 |
|---|
| 47, Poplar Drive311 m away | 112 m² | 162 m² | +50 m² +45% | 2024 |
|---|
| 8, Copeman Road401 m away | 78 m² | 128 m² | +50 m² +64% | 2022 |
|---|
| 62, Long Ridings Avenue576 m away | 81 m² | 131 m² | +50 m² +62% | 2018 |
|---|
| 129, Hunter Avenue861 m away | 89 m² | 138 m² | +49 m² +55% | 2019 |
|---|
| 10, Carpenter Path413 m away | 89 m² | 138 m² | +49 m² +55% | 2012 |
|---|
| 10, Coleridge Walk403 m away | 80 m² | 128 m² | +48 m² +60% | 2026 |
|---|
| 31, Byron Road611 m away | 85 m² | 133 m² | +48 m² +56% | 2020 |
|---|
| 59, Arnolds Avenue699 m away | 60 m² | 108 m² | +48 m² +80% | 2020 |
|---|
| 4, Janmead533 m away | 110 m² | 158 m² | +48 m² +44% | 2014 |
|---|
| 31, Edwards Way784 m away | 83 m² | 130 m² | +47 m² +57% | 2026 |
|---|
| 20, Wid Close828 m away | 100 m² | 147 m² | +47 m² +47% | 2023 |
|---|
| 14, Newlands Close700 m away | 85 m² | 132 m² | +47 m² +55% | 2018 |
|---|
| 5, Woodland Avenue487 m away | 97 m² | 144 m² | +47 m² +48% | 2014 |
|---|
| Alverstone, Alexander Lane815 m away | 123 m² | 169 m² | +46 m² +37% | 2026 |
|---|
| 56, Queenswood Avenue940 m away | 82 m² | 128 m² | +46 m² +56% | 2023 |
|---|
| 51, Wash Road767 m away | 83 m² | 129 m² | +46 m² +55% | 2019 |
|---|
| 58, Woodland Avenue598 m away | 69 m² | 114 m² | +45 m² +65% | 2017 |
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| 248, Hanging Hill Lane313 m away | 69 m² | 114 m² | +45 m² +65% | 2015 |
|---|
| 2, Cedar Close647 m away | 83 m² | 127 m² | +44 m² +53% | 2022 |
|---|
| 170, Rayleigh Road711 m away | 84 m² | 128 m² | +44 m² +52% | 2022 |
|---|
| 30, Arnolds Avenue775 m away | 81 m² | 125 m² | +44 m² +54% | 2013 |
|---|
| 86, Hunter Avenue861 m away | 58 m² | 101 m² | +43 m² +74% | 2024 |
|---|
| 11, Cedar Road488 m away | 47 m² | 90 m² | +43 m² +91% | 2018 |
|---|
| 33, Cedar Road488 m away | 137 m² | 179 m² | +42 m² +31% | 2026 |
|---|
| 49, Long Ridings Avenue576 m away | 91 m² | 133 m² | +42 m² +46% | 2024 |
|---|
| 25, Park Avenue785 m away | 249 m² | 291 m² | +42 m² +17% | 2021 |
|---|
| 117, Hunter Avenue861 m away | 88 m² | 130 m² | +42 m² +48% | 2017 |
|---|
| 2, Lordship Close699 m away | 146 m² | 187 m² | +41 m² +28% | 2026 |
|---|
| 14, Copeman Road401 m away | 66 m² | 107 m² | +41 m² +62% | 2024 |
|---|
| 146, Hutton Drive818 m away | 71 m² | 112 m² | +41 m² +58% | 2014 |
|---|
| 23, Woodland Close538 m away | 75 m² | 115 m² | +40 m² +53% | 2022 |
|---|
| Longwood, Alexander Lane748 m away | 98 m² | 138 m² | +40 m² +41% | 2014 |
|---|
| Beechwood, Mount Avenue837 m away | 205 m² | 244 m² | +39 m² +19% | 2026 |
|---|
| 35, Woodland Avenue487 m away | 80 m² | 119 m² | +39 m² +49% | 2021 |
|---|
| 19, Longaford Way860 m away | 169 m² | 208 m² | +39 m² +23% | 2020 |
|---|
| 44, Hunter Avenue956 m away | 89 m² | 127 m² | +38 m² +43% | 2023 |
|---|
| 34, Coram Green485 m away | 84 m² | 122 m² | +38 m² +45% | 2021 |
|---|
| 7, Greyfriars753 m away | 150 m² | 188 m² | +38 m² +25% | 2017 |
|---|
| 18, Walton Gardens690 m away | 84 m² | 122 m² | +38 m² +45% | 2015 |
|---|
| 11, Coleridge Walk403 m away | 111 m² | 148 m² | +37 m² +33% | 2024 |
|---|
| 41, Arnolds Avenue699 m away | 63 m² | 100 m² | +37 m² +59% | 2018 |
|---|
| 28, Byron Road472 m away | 100 m² | 137 m² | +37 m² +37% | 2016 |
|---|
| 46, Tomlyns Close934 m away | 125 m² | 162 m² | +37 m² +30% | 2015 |
|---|
| 153, Rayleigh Road199 m away | 141 m² | 177 m² | +36 m² +26% | 2025 |
|---|
| 21, Hall Green Lane618 m away | 175 m² | 211 m² | +36 m² +21% | 2015 |
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| 115, Rayleigh Road199 m away | 134 m² | 169 m² | +35 m² +26% | 2025 |
|---|
| 23, Newmans Drive608 m away | 159 m² | 194 m² | +35 m² +22% | 2024 |
|---|
| 12, Long Ridings Avenue620 m away | 111 m² | 146 m² | +35 m² +32% | 2023 |
|---|
| 3, Tennyson Road562 m away | 105 m² | 140 m² | +35 m² +33% | 2020 |
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| 108, Hunter Avenue861 m away | 53 m² | 88 m² | +35 m² +66% | 2020 |
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| 59, Woodland Avenue479 m away | 99 m² | 134 m² | +35 m² +35% | 2016 |
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| 171, Rayleigh Road199 m away | 75 m² | 109 m² | +34 m² +45% | 2025 |
|---|
| 1, Carswell Close546 m away | 88 m² | 122 m² | +34 m² +39% | 2023 |
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| 43, Arnolds Avenue699 m away | 78 m² | 112 m² | +34 m² +44% | 2022 |
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| 149, Woodland Avenue624 m away | 70 m² | 104 m² | +34 m² +49% | 2021 |
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| 68, Coram Green604 m away | 68 m² | 102 m² | +34 m² +50% | 2014 |
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| 10, Herington Grove997 m away | 219 m² | 252 m² | +33 m² +15% | 2024 |
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| 222, Rayleigh Road878 m away | 79 m² | 112 m² | +33 m² +42% | 2022 |
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| 26, Woodland Avenue479 m away | 86 m² | 119 m² | +33 m² +38% | 2013 |
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| 5, Oakbank897 m away | 111 m² | 143 m² | +32 m² +29% | 2023 |
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| 6, Beaumont Gardens246 m away | 143 m² | 173 m² | +30 m² +21% | 2026 |
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| 91, Whittington Road452 m away | 36 m² | 66 m² | +30 m² +83% | 2025 |
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| 6, Waltham Close244 m away | 96 m² | 126 m² | +30 m² +31% | 2023 |
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| 113, Whittington Road528 m away | 79 m² | 109 m² | +30 m² +38% | 2018 |
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| 147, Rayleigh Road199 m away | 96 m² | 126 m² | +30 m² +31% | 2016 |
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| 45, Long Ridings Avenue576 m away | 87 m² | 116 m² | +29 m² +33% | 2026 |
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| 37, Boundary Drive968 m away | 71 m² | 100 m² | +29 m² +41% | 2024 |
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| 48, Hall Green Lane758 m away | 114 m² | 143 m² | +29 m² +25% | 2018 |
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| Dryden, Kingsley Road593 m away | 173 m² | 202 m² | +29 m² +17% | 2015 |
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| 31, Hall Green Lane618 m away | 148 m² | 177 m² | +29 m² +20% | 2012 |
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| 24, Hunter Avenue956 m away | 64 m² | 93 m² | +29 m² +45% | 2011 |
|---|
| 30, Woodland Avenue479 m away | 61 m² | 89 m² | +28 m² +46% | 2025 |
|---|
| 131, Hunter Avenue861 m away | 87 m² | 115 m² | +28 m² +32% | 2022 |
|---|
| 15, Lyndhurst Way662 m away | 120 m² | 147 m² | +27 m² +23% | 2025 |
|---|
| 16, Coram Green485 m away | 69 m² | 96 m² | +27 m² +39% | 2022 |
|---|
| 64, Rayleigh Road93 m away | 82 m² | 109 m² | +27 m² +33% | 2014 |
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| 37, Byron Road611 m away | 83 m² | 109 m² | +26 m² +31% | 2026 |
|---|
| 15, Newlands Close700 m away | 107 m² | 133 m² | +26 m² +24% | 2023 |
|---|
| 33, Oliver Road988 m away | 86 m² | 112 m² | +26 m² +30% | 2020 |
|---|
| 60, Hall Green Lane758 m away | 115 m² | 141 m² | +26 m² +23% | 2015 |
|---|
| 20, Pine Crescent771 m away | 83 m² | 109 m² | +26 m² +31% | 2015 |
|---|
| 21, Surman Crescent477 m away | 79 m² | 105 m² | +26 m² +33% | 2014 |
|---|
| 7, Arnolds Close701 m away | 83 m² | 109 m² | +26 m² +31% | 2013 |
|---|
| 5, Oakland Gardens673 m away | 105 m² | 130 m² | +25 m² +24% | 2025 |
|---|
| 15, Woodland Avenue487 m away | 116 m² | 141 m² | +25 m² +22% | 2024 |
|---|
| 7, Storr Gardens824 m away | 112 m² | 137 m² | +25 m² +22% | 2021 |
|---|
| 39, Cedar Road488 m away | 64 m² | 89 m² | +25 m² +39% | 2019 |
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| 17, Clifton Way978 m away | 104 m² | 129 m² | +25 m² +24% | 2018 |
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| 2, Broxted Mews151 m away | 145 m² | 169 m² | +24 m² +17% | 2026 |
|---|
| 4, Harrison Close560 m away | 100 m² | 124 m² | +24 m² +24% | 2025 |
|---|
| 67, Cedar Road555 m away | 66 m² | 90 m² | +24 m² +36% | 2023 |
|---|
| 28, Burses Way325 m away | 135 m² | 159 m² | +24 m² +18% | 2019 |
|---|
| 79, Sebastian Avenue933 m away | 69 m² | 93 m² | +24 m² +35% | 2017 |
|---|
| 1, Colet Road475 m away | 76 m² | 100 m² | +24 m² +32% | 2013 |
|---|
| 9, Shaw Crescent809 m away | 82 m² | 105 m² | +23 m² +28% | 2026 |
|---|
| 31c, Tennyson Road562 m away | 91 m² | 114 m² | +23 m² +25% | 2025 |
|---|
| 7, Springfield Avenue989 m away | 76 m² | 99 m² | +23 m² +30% | 2024 |
|---|
| 51, Woodland Avenue479 m away | 64 m² | 87 m² | +23 m² +36% | 2019 |
|---|
| 8, Randalls Drive727 m away | 81 m² | 104 m² | +23 m² +28% | 2019 |
|---|
| 3, Alpha Road549 m away | 105 m² | 128 m² | +23 m² +22% | 2014 |
|---|
| 10, Crushes Close649 m away | 122 m² | 145 m² | +23 m² +19% | 2014 |
|---|
| Flat 1, Booths Court, Poplar Drive392 m away | 63 m² | 85 m² | +22 m² +35% | 2026 |
|---|
| 11, Boundary Drive843 m away | 78 m² | 100 m² | +22 m² +28% | 2020 |
|---|
| 26, Boundary Drive843 m away | 55 m² | 77 m² | +22 m² +40% | 2018 |
|---|
| 135, Hunter Avenue861 m away | 111 m² | 132 m² | +21 m² +19% | 2025 |
|---|
| 12, Hunter Avenue956 m away | 69 m² | 90 m² | +21 m² +30% | 2020 |
|---|
| 98, Woodland Avenue624 m away | 58 m² | 79 m² | +21 m² +36% | 2019 |
|---|
| 13, Randalls Drive727 m away | 101 m² | 121 m² | +20 m² +20% | 2026 |
|---|
| 15, Pine Crescent771 m away | 65 m² | 85 m² | +20 m² +31% | 2021 |
|---|
| 5, Sunray Avenue988 m away | 125 m² | 145 m² | +20 m² +16% | 2019 |
|---|
| 5, Harrison Close560 m away | 110 m² | 130 m² | +20 m² +18% | 2016 |
|---|
| 32, Burses Way325 m away | 113 m² | 132 m² | +19 m² +17% | 2023 |
|---|
| 94, Arnolds Avenue739 m away | 87 m² | 106 m² | +19 m² +22% | 2022 |
|---|
| 1, Ardleigh Gardens767 m away | 71 m² | 90 m² | +19 m² +27% | 2018 |
|---|
| 42, Edwards Way784 m away | 82 m² | 101 m² | +19 m² +23% | 2014 |
|---|
| 61, Arnolds Avenue699 m away | 61 m² | 79 m² | +18 m² +30% | 2024 |
|---|
| 19, Kelvedon Close872 m away | 60 m² | 78 m² | +18 m² +30% | 2021 |
|---|
| 27, Mount Pleasant Avenue898 m away | 120 m² | 138 m² | +18 m² +15% | 2018 |
|---|
| 190, Rayleigh Road711 m away | 83 m² | 101 m² | +18 m² +22% | 2011 |
|---|
| 5, Long Ridings Avenue620 m away | 83 m² | 100 m² | +17 m² +20% | 2025 |
|---|
| 13, Pinewood Way799 m away | 81 m² | 98 m² | +17 m² +21% | 2023 |
|---|
| 28, Boundary Drive843 m away | 77 m² | 94 m² | +17 m² +22% | 2021 |
|---|
| 5, Wash Road631 m away | 84 m² | 101 m² | +17 m² +20% | 2019 |
|---|