Finding extended homes…
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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 CM15 9LG
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 |
|---|---|---|---|---|
| 111, Hatch Road592 m away | 83 m² | 197 m² | +114 m² +137% | 2024 |
| 36, Elizabeth Road447 m away | 86 m² | 198 m² | +112 m² +130% | 2025 |
| 324, Ongar Road185 m away | 97 m² | 209 m² | +112 m² +115% | 2022 |
| 28, Doddinghurst Road876 m away | 92 m² | 200 m² | +108 m² +117% | 2016 |
| 35, Doddinghurst Road782 m away | 83 m² | 178 m² | +95 m² +114% | 2026 |
| 191, Ongar Road942 m away | 66 m² | 155 m² | +89 m² +135% | 2024 |
| 8, Robin Hood Road793 m away | 92 m² | 174 m² | +82 m² +89% | 2016 |
| 4, Robin Hood Road793 m away | 84 m² | 164 m² | +80 m² +95% | 2021 |
| 29, Costead Manor Road723 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.
| 114 m² |
| 188 m² |
| +74 m² +65% |
| 2024 |
| 123, Danes Way509 m away | 83 m² | 157 m² | +74 m² +89% | 2022 |
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| 27, Costead Manor Road723 m away | 83 m² | 154 m² | +71 m² +86% | 2023 |
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| 14, Costead Manor Road757 m away | 85 m² | 146 m² | +61 m² +72% | 2025 |
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| 22, Osborne Road46 m away | 85 m² | 146 m² | +61 m² +72% | 2018 |
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| 32, Catherine Close725 m away | 50 m² | 110 m² | +60 m² +120% | 2023 |
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| 25, Catherine Close725 m away | 83 m² | 143 m² | +60 m² +72% | 2020 |
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| 230a, Hatch Road745 m away | 65 m² | 125 m² | +60 m² +92% | 2013 |
|---|
| 68, Orchard Lane907 m away | 74 m² | 133 m² | +59 m² +80% | 2022 |
|---|
| 32, Crow Green Road782 m away | 84 m² | 142 m² | +58 m² +69% | 2019 |
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| 18, Larchwood Gardens320 m away | 120 m² | 177 m² | +57 m² +48% | 2025 |
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| 11, Priory Close556 m away | 58 m² | 115 m² | +57 m² +98% | 2022 |
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| 114, Hatch Road592 m away | 81 m² | 138 m² | +57 m² +70% | 2022 |
|---|
| 20, Costead Manor Road757 m away | 69 m² | 126 m² | +57 m² +83% | 2022 |
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| 57, Robin Hood Road852 m away | 53 m² | 109 m² | +56 m² +106% | 2025 |
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| 24, Doddinghurst Road876 m away | 111 m² | 167 m² | +56 m² +50% | 2018 |
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| Fayre Wyns, Crow Green Lane705 m away | 51 m² | 106 m² | +55 m² +108% | 2022 |
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| 6, Hazelwood Gardens397 m away | 96 m² | 150 m² | +54 m² +56% | 2018 |
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| 135, Hatch Road674 m away | 95 m² | 148 m² | +53 m² +56% | 2019 |
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| 10, Danes Way523 m away | 92 m² | 143 m² | +51 m² +55% | 2018 |
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| 58, Elizabeth Road224 m away | 65 m² | 113 m² | +48 m² +74% | 2020 |
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| 70, Viking Way328 m away | 82 m² | 130 m² | +48 m² +59% | 2017 |
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| 66, Hatch Road655 m away | 76 m² | 123 m² | +47 m² +62% | 2025 |
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| 368, Ongar Road571 m away | 223 m² | 270 m² | +47 m² +21% | 2024 |
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| 22, King Georges Road152 m away | 61 m² | 108 m² | +47 m² +77% | 2022 |
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| 26, Warescot Road548 m away | 97 m² | 143 m² | +46 m² +47% | 2025 |
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| 25, Costead Manor Road723 m away | 67 m² | 113 m² | +46 m² +69% | 2023 |
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| 133, Hatch Road674 m away | 84 m² | 130 m² | +46 m² +55% | 2022 |
|---|
| 3, Ash Close948 m away | 63 m² | 109 m² | +46 m² +73% | 2020 |
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| 29, Robin Hood Road852 m away | 94 m² | 139 m² | +45 m² +48% | 2026 |
|---|
| 14, Orchard Lane907 m away | 65 m² | 110 m² | +45 m² +69% | 2025 |
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| 228b, Ongar Road908 m away | 40 m² | 85 m² | +45 m² +113% | 2019 |
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| 35, Broomwood Gardens243 m away | 100 m² | 145 m² | +45 m² +45% | 2014 |
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| 75, Crow Green Road770 m away | 117 m² | 161 m² | +44 m² +38% | 2026 |
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| 48, St Kildas Road648 m away | 125 m² | 169 m² | +44 m² +35% | 2020 |
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| 36, Larchwood Gardens320 m away | 112 m² | 155 m² | +43 m² +38% | 2026 |
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| 62a, Larchwood Gardens320 m away | 126 m² | 168 m² | +42 m² +33% | 2025 |
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| 29a, Elizabeth Road292 m away | 67 m² | 109 m² | +42 m² +63% | 2024 |
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| 2, Greenshaw860 m away | 66 m² | 108 m² | +42 m² +64% | 2023 |
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| 7, Bishops Hall Road309 m away | 93 m² | 135 m² | +42 m² +45% | 2019 |
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| 24, Kensington Road0 m away | 105 m² | 146 m² | +41 m² +39% | 2024 |
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| 79, Cornwall Road501 m away | 70 m² | 110 m² | +40 m² +57% | 2024 |
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| 194, Hatch Road745 m away | 57 m² | 96 m² | +39 m² +68% | 2022 |
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| 41, Warescot Road570 m away | 93 m² | 132 m² | +39 m² +42% | 2021 |
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| 12, Costead Manor Road757 m away | 74 m² | 113 m² | +39 m² +53% | 2015 |
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| 67, Costead Manor Road897 m away | 78 m² | 116 m² | +38 m² +49% | 2025 |
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| 5, Clarence Road234 m away | 70 m² | 108 m² | +38 m² +54% | 2024 |
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| 2, Philip Close508 m away | 85 m² | 123 m² | +38 m² +45% | 2022 |
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| 6, Blenheim Road205 m away | 77 m² | 114 m² | +37 m² +48% | 2020 |
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| 2, King Georges Road218 m away | 121 m² | 158 m² | +37 m² +31% | 2017 |
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| 103, Hatch Road592 m away | 70 m² | 106 m² | +36 m² +51% | 2015 |
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| 369a, Ongar Road246 m away | 68 m² | 104 m² | +36 m² +53% | 2014 |
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| 10, Catherine Close725 m away | 66 m² | 102 m² | +36 m² +55% | 2014 |
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| 2, Peony Close468 m away | 77 m² | 111 m² | +34 m² +44% | 2021 |
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| 5, Poppy Close633 m away | 75 m² | 109 m² | +34 m² +45% | 2018 |
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| 11, Calcott Close924 m away | 87 m² | 121 m² | +34 m² +39% | 2014 |
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| 21, Greenwich Avenue899 m away | 114 m² | 147 m² | +33 m² +29% | 2022 |
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| 155, Hatch Road674 m away | 83 m² | 116 m² | +33 m² +40% | 2018 |
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| 19, Costead Manor Road723 m away | 70 m² | 102 m² | +32 m² +46% | 2026 |
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| 424, Ongar Road869 m away | 178 m² | 210 m² | +32 m² +18% | 2022 |
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| 40, Cornwall Road445 m away | 73 m² | 105 m² | +32 m² +44% | 2019 |
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| 4, Osborne Road46 m away | 121 m² | 153 m² | +32 m² +26% | 2015 |
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| 1, Chelsea Way957 m away | 114 m² | 145 m² | +31 m² +27% | 2026 |
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| 33, Doddinghurst Road782 m away | 109 m² | 140 m² | +31 m² +28% | 2023 |
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| 18, Danes Way523 m away | 90 m² | 121 m² | +31 m² +34% | 2013 |
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| Crow Cottage, Crow Green Lane705 m away | 109 m² | 140 m² | +31 m² +28% | 2012 |
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| 72, Danes Way390 m away | 80 m² | 110 m² | +30 m² +38% | 2024 |
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| 240, Hatch Road957 m away | 148 m² | 178 m² | +30 m² +20% | 2024 |
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| 18, Windsor Road160 m away | 89 m² | 117 m² | +28 m² +31% | 2025 |
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| 4, King Georges Road218 m away | 111 m² | 139 m² | +28 m² +25% | 2025 |
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| 37, Elizabeth Road292 m away | 85 m² | 113 m² | +28 m² +33% | 2025 |
|---|
| 73, Crow Green Road770 m away | 96 m² | 124 m² | +28 m² +29% | 2022 |
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| 3, Danes Way523 m away | 85 m² | 112 m² | +27 m² +32% | 2021 |
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| 3, Karen Close649 m away | 75 m² | 102 m² | +27 m² +36% | 2015 |
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| Jenclaire, Crow Green Lane705 m away | 57 m² | 84 m² | +27 m² +47% | 2012 |
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| 32, Cornwall Road445 m away | 48 m² | 74 m² | +26 m² +54% | 2020 |
|---|
| 14, Larchwood Gardens320 m away | 87 m² | 112 m² | +25 m² +29% | 2021 |
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| 14, The Retreat854 m away | 40 m² | 65 m² | +25 m² +63% | 2019 |
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| 66, Doddinghurst Road876 m away | 118 m² | 142 m² | +24 m² +20% | 2026 |
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| 37, Robin Hood Road852 m away | 107 m² | 131 m² | +24 m² +22% | 2025 |
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| 7, Gloucester Road371 m away | 87 m² | 111 m² | +24 m² +28% | 2024 |
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| 20, Catherine Close725 m away | 46 m² | 70 m² | +24 m² +52% | 2023 |
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| 10, Kensington Road0 m away | 115 m² | 139 m² | +24 m² +21% | 2022 |
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| 285, Ongar Road533 m away | 134 m² | 157 m² | +23 m² +17% | 2022 |
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| 26, Little Highwood Way740 m away | 98 m² | 120 m² | +22 m² +22% | 2025 |
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| 27, Hatch Road646 m away | 134 m² | 156 m² | +22 m² +16% | 2022 |
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| 25, Greenwich Avenue899 m away | 114 m² | 135 m² | +21 m² +18% | 2024 |
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| 3, Tyler Way891 m away | 30 m² | 51 m² | +21 m² +70% | 2015 |
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| 1a, Kensington Road0 m away | 112 m² | 132 m² | +20 m² +18% | 2024 |
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| 21, Stuart Close451 m away | 70 m² | 90 m² | +20 m² +29% | 2020 |
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| 402, Ongar Road869 m away | 91 m² | 111 m² | +20 m² +22% | 2020 |
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| 16, Hurstwood Avenue360 m away | 58 m² | 77 m² | +19 m² +33% | 2020 |
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| 24a, Marlborough Road107 m away | 63 m² | 82 m² | +19 m² +30% | 2014 |
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| 22, Clarence Road234 m away | 71 m² | 89 m² | +18 m² +25% | 2024 |
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| 38, Cornwall Road445 m away | 93 m² | 110 m² | +17 m² +18% | 2021 |
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| 5, Church Walk554 m away | 39 m² | 56 m² | +17 m² +44% | 2021 |
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| 20, King Georges Road152 m away | 80 m² | 97 m² | +17 m² +21% | 2019 |
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| 497, Ongar Road881 m away | 65 m² | 82 m² | +17 m² +26% | 2017 |
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| 19, Tyler Way891 m away | 81 m² | 98 m² | +17 m² +21% | 2015 |
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| 233, Ongar Road791 m away | 99 m² | 115 m² | +16 m² +16% | 2024 |
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| 33, Catherine Close725 m away | 102 m² | 118 m² | +16 m² +16% | 2022 |
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| 177, Ongar Road942 m away | 105 m² | 121 m² | +16 m² +15% | 2021 |
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| 35, King Georges Road150 m away | 88 m² | 104 m² | +16 m² +18% | 2010 |
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| 3, Rushdene Road832 m away | 55 m² | 70 m² | +15 m² +27% | 2023 |
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