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 RG8 8DH
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 |
|---|---|---|---|---|
| 16, Highfield Road946 m away | 111 m² | 219 m² | +108 m² +97% | 2015 |
| 77, Long Lane845 m away | 94 m² | 194 m² | +100 m² +106% | 2020 |
| 45, Long Lane845 m away | 98 m² | 197 m² | +99 m² +101% | 2025 |
| The Chilterns, 9, Beech Road341 m away | 164 m² | 252 m² | +88 m² +54% | 2014 |
| The Folly, Purley Lane884 m away | 94 m² | 181 m² | +87 m² +93% | 2026 |
| Mountain Ash, 79, Long Lane845 m away | 92 m² | 178 m² | +86 m² +93% | 2016 |
| 10, Highfield Road946 m away | 65 m² | 146 m² | +81 m² +125% | 2023 |
| The Lilacs, Westbury Lane341 m away | 93 m² | 156 m² | +63 m² +68% | 2021 |
| 7, Bowling Green Lane769 m away | 110 m² | 172 m² | +62 m² +56% | 2015 |
| Glebe End, Sulham Lane907 m away | 119 m² | 162 m² | +43 m² +36% | 2026 |
| The Coach House, Purley Lane884 m away | 202 m² | 244 m² | +42 m² +21% | 2026 |
| 9, Long Lane829 m away | 72 m² | 114 m² | +42 m² +58% | 2012 |
| 27, Beech Road341 m away | 169 m² | 210 m² | +41 m² +24% | 2013 |
| 2, Sherwood Place754 m away | 115 m² | 155 m² | +40 m² +35% | 2017 |
| 11, Briars Close958 m away | 117 m² | 155 m² | +38 m² +32% | 2017 |
| 22, Clarendon Rise741 m away | 137 m² | 174 m² | +37 m² +27% | 2024 |
| 20, Glebe Road455 m away | 90 m² | 126 m² | +36 m² +40% | 2020 |
| 9, Nursery Gardens708 m away | 168 m² | 201 m² | +33 m² +20% | 2026 |
| 9, Clarendon Rise741 m away | 127 m² | 160 m² | +33 m² +26% | 2019 |
| 4, Purley Rise573 m away | 104 m² | 135 m² | +31 m² +30% | 2021 |
| 20, Saunders Court819 m away | 30 m² | 61 m² | +31 m² +103% | 2019 |
| 40, Long Lane771 m away | 128 m² | 158 m² | +30 m² +23% | 2023 |
| 36, Apple Close965 m away | 116 m² | 146 m² | +30 m² +26% | 2020 |
| 4, Westridge Avenue973 m away | 144 m² | 171 m² | +27 m² +19% | 2025 |
| 30, Beech Road337 m away | 111 m² | 138 m² | +27 m² +24% | 2016 |
| 14, Clarendon Rise741 m away | 126 m² | 150 m² | +24 m² +19% | 2024 |
| 10, Nursery Gardens708 m away | 125 m² | 146 m² | +21 m² +17% | 2021 |
| Flat 5, Bowling Green Farmhouse, Trenthams Close707 m away | 80 m² | 100 m² | +20 m² +25% | 2026 |
| Flat 4, Bowling Green Farmhouse, Trenthams Close707 m away | 57 m² | 77 m² | +20 m² +35% | 2020 |
| 13, Briars Close958 m away | 95 m² | 115 m² | +20 m² +21% | 2020 |
| 6, Clarendon Rise741 m away | 75 m² | 94 m² | +19 m² +25% | 2025 |
| 21, Horsecroft Way737 m away | 44 m² | 63 m² | +19 m² +43% | 2021 |
| 6, Glebe Road455 m away | 83 m² | 101 m² | +18 m² +22% | 2016 |
| 12, Trenthams Close707 m away | 79 m² | 96 m² | +17 m² +22% | 2026 |
| 2, Trenthams Close707 m away | 69 m² | 86 m² | +17 m² +25% | 2021 |
| 2, Cornwall Close967 m away | 69 m² | 85 m² | +16 m² +23% | 2026 |
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.