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 PO9 1RR
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 |
|---|---|---|---|---|
| 4, Mill Lane514 m away | 165 m² | 286 m² | +121 m² +73% | 2016 |
| 14d, Emsworth Road955 m away | 166 m² | 244 m² | +78 m² +47% | 2020 |
| 5, Harbourside594 m away | 204 m² | 275 m² | +71 m² +35% | 2024 |
| 16a, Beechworth Road932 m away | 287 m² | 358 m² | +71 m² +25% | 2013 |
| 6, Pembury Road837 m away | 109 m² | 177 m² | +68 m² +62% | 2013 |
| 2, Norris Gardens733 m away | 125 m² | 191 m² | +66 m² +53% | 2016 |
| 8, Brookmead Way277 m away | 114 m² | 178 m² | +64 m² +56% | 2025 |
| 55c, South Street574 m away | 121 m² | 175 m² | +54 m² +45% | 2015 |
| 24, Hamilton Close320 m away | 120 m² | 173 m² | +53 m² +44% | 2025 |
| 6, Langbrook Close328 m away | 125 m² | 177 m² | +52 m² +42% | 2026 |
| 1, Woodbury Avenue289 m away | 190 m² | 239 m² | +49 m² +26% | 2016 |
| 17, Wade Court Road699 m away | 230 m² | 278 m² | +48 m² +21% | 2014 |
| 27, Lower Grove Road558 m away | 174 m² | 221 m² | +47 m² +27% | 2023 |
| 26, Brockhampton Lane918 m away | 33 m² | 79 m² | +46 m² +139% | 2015 |
| Flat 3, Watermill Court, 10, Springwell720 m away | 52 m² | 95 m² | +43 m² +83% | 2017 |
| Cherrytrees, 1, Southbrook Close166 m away | 121 m² | 161 m² | +40 m² +33% | 2014 |
| 5a, Mill Lane514 m away | 214 m² | 251 m² | +37 m² +17% | 2018 |
| 13, Beechworth Road932 m away | 94 m² | 129 m² | +35 m² +37% | 2026 |
| 16, Hamilton Close320 m away | 105 m² | 138 m² | +33 m² +31% | 2019 |
| 7, Homewell784 m away | 35 m² | 67 m² | +32 m² +91% | 2026 |
| 16, Granville Close919 m away | 105 m² | 136 m² | +31 m² +30% | 2025 |
| 10, Homewell784 m away | 33 m² | 64 m² | +31 m² +94% | 2022 |
| 4, Pembury Road837 m away | 130 m² | 160 m² | +30 m² +23% | 2025 |
| 36, Grove Road651 m away | 167 m² | 197 m² | +30 m² +18% | 2016 |
| 9, Langstone High Street528 m away | 117 m² | 146 m² | +29 m² +25% | 2021 |
| 61, Southbrook Road159 m away | 106 m² | 133 m² | +27 m² +25% | 2014 |
| 16, Lower Grove Road558 m away | 87 m² | 112 m² | +25 m² +29% | 2021 |
| 3, Southbrook Road159 m away | 129 m² | 154 m² | +25 m² +19% | 2011 |
| 18, Bellair Road959 m away | 140 m² | 163 m² | +23 m² +16% | 2025 |
| 36, Longmead Gardens0 m away | 94 m² | 116 m² | +22 m² +23% | 2014 |
| 41, Pook Lane995 m away | 70 m² | 89 m² | +19 m² +27% | 2026 |
| Cobden Arms, 74 - 76, West Street959 m away | 42 m² | 61 m² | +19 m² +45% | 2016 |
| 2a, Beechworth Road932 m away | 96 m² | 114 m² | +18 m² +19% | 2014 |
| Flat 3, George Court, 11, North Street876 m away | 31 m² | 48 m² | +17 m² +55% | 2019 |
| 29, Lymbourn Road719 m away | 88 m² | 104 m² | +16 m² +18% | 2024 |
| Flat 10, Empire Court, 29, East Street848 m away | 40 m² | 56 m² | +16 m² +40% | 2018 |
| 29, Pook Lane995 m away | 77 m² | 92 m² | +15 m² +19% | 2013 |
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.