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 CM9 4QG
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 |
|---|---|---|---|---|
| 14, Downs Road935 m away | 82 m² | 178 m² | +96 m² +117% | 2022 |
| 23, Quest Place955 m away | 60 m² | 148 m² | +88 m² +147% | 2022 |
| 98, Crescent Road635 m away | 122 m² | 200 m² | +78 m² +64% | 2026 |
| 21, Quest Place955 m away | 60 m² | 135 m² | +75 m² +125% | 2020 |
| 64, Crescent Road635 m away | 96 m² | 164 m² | +68 m² +71% | 2020 |
| 31, Quest Place955 m away | 60 m² | 120 m² | +60 m² +100% | 2023 |
| 77, Hillary Close846 m away | 74 m² | 130 m² | +56 m² +76% | 2019 |
| 5, Quest Place955 m away | 60 m² | 116 m² | +56 m² +93% | 2012 |
| 5, Barnfield Cottages, Stock Chase853 m away | 45 m² | 100 m² | +55 m² +122% | 2026 |
| 7, Quest Place955 m away | 60 m² | 114 m² | +54 m² +90% | 2012 |
| 62, Long Common505 m away | 95 m² | 147 m² | +52 m² +55% | 2025 |
| 86, Quest Place955 m away | 49 m² | 98 m² | +49 m² +100% | 2021 |
| 82, Quest Place955 m away | 49 m² | 98 m² | +49 m² +100% | 2010 |
| 49, Crescent Road453 m away | 68 m² | 116 m² | +48 m² +71% | 2025 |
| 11, Fambridge Road990 m away | 224 m² | 268 m² | +44 m² +20% | 2023 |
| 32, Beeleigh Road742 m away | 122 m² | 164 m² | +42 m² +34% | 2025 |
| 84a, High Street937 m away | 55 m² | 97 m² | +42 m² +76% | 2019 |
| 60, Holloway Road541 m away | 83 m² | 124 m² | +41 m² +49% | 2019 |
| 44, Long Common505 m away | 72 m² | 111 m² | +39 m² +54% | 2015 |
| 7, London Road911 m away | 83 m² | 119 m² | +36 m² +43% | 2020 |
| 6, The Orchard370 m away | 146 m² | 180 m² | +34 m² +23% | 2019 |
| 31, Doubleday Drive659 m away | 71 m² | 105 m² | +34 m² +48% | 2015 |
| 26, Fir Tree Walk989 m away | 96 m² | 129 m² | +33 m² +34% | 2023 |
| 3, Chandlers Quay652 m away | 80 m² | 113 m² | +33 m² +41% | 2022 |
| 12, Hillary Close920 m away | 81 m² | 113 m² | +32 m² +40% | 2015 |
| 37, Crescent Road453 m away | 134 m² | 160 m² | +26 m² +19% | 2023 |
| 1, Cloughton Court, Triangle Place883 m away | 77 m² | 102 m² | +25 m² +32% | 2022 |
| Parkdene, Stock Chase797 m away | 66 m² | 90 m² | +24 m² +36% | 2025 |
| 25, Victoria Road983 m away | 75 m² | 99 m² | +24 m² +32% | 2025 |
| 7, Gill Close742 m away | 68 m² | 92 m² | +24 m² +35% | 2015 |
| 8, High Street905 m away | 37 m² | 61 m² | +24 m² +65% | 2011 |
| 13, Chandlers Quay652 m away | 64 m² | 86 m² | +22 m² +34% | 2020 |
| 1, The Roothings660 m away | 71 m² | 93 m² | +22 m² +31% | 2015 |
| 65, Market Hill594 m away | 72 m² | 93 m² | +21 m² +29% | 2021 |
| 30, Creasen Butt Close0 m away | 78 m² | 99 m² | +21 m² +27% | 2018 |
| 2, Hadrians Way74 m away | 72 m² | 93 m² | +21 m² +29% | 2015 |
| 24, Mercury Place296 m away | 72 m² | 91 m² | +19 m² +26% | 2026 |
| 21, Gate Street Mews817 m away | 86 m² | 104 m² | +18 m² +21% | 2022 |
| 37, Hunt Avenue817 m away | 74 m² | 90 m² | +16 m² +22% | 2025 |
| 17, Doubleday Drive659 m away | 90 m² | 106 m² | +16 m² +18% | 2016 |
| 85, Victoria Road983 m away | 91 m² | 106 m² | +15 m² +16% | 2025 |
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.