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 CH1 5NF
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 |
|---|---|---|---|---|
| 199b, Blacon Point Road222 m away | 45 m² | 108 m² | +63 m² +140% | 2020 |
| 56a, Treborth Road218 m away | 45 m² | 108 m² | +63 m² +140% | 2011 |
| 54a, Treborth Road218 m away | 45 m² | 108 m² | +63 m² +140% | 2011 |
| 95c, Treborth Road218 m away | 45 m² | 102 m² | +57 m² +127% | 2020 |
| 85b, Treborth Road218 m away | 45 m² | 99 m² | +54 m² +120% | 2023 |
| 155b, Blacon Point Road222 m away | 45 m² | 98 m² | +53 m² +118% | 2024 |
| 95a, Treborth Road218 m away | 45 m² | 96 m² | +51 m² +113% | 2012 |
| 155a, Blacon Point Road222 m away | 45 m² | 95 m² | +50 m² +111% | 2022 |
| 87b, Treborth Road218 m away | 45 m² | 94 m² | +49 m² +109% | 2022 |
| 19, Western Avenue728 m away | 80 m² | 129 m² | +49 m² +61% | 2011 |
| 77a, Treborth Road218 m away | 45 m² | 90 m² | +45 m² +100% | 2022 |
| 158, Blacon Point Road157 m away | 79 m² | 122 m² | +43 m² +54% | 2016 |
| 4, Caernarfon Grove299 m away | 43 m² | 85 m² | +42 m² +98% | 2024 |
| 8, Conway Grove344 m away | 43 m² | 85 m² | +42 m² +98% | 2024 |
| 11, Beaumaris Grove160 m away | 42 m² | 83 m² | +41 m² +98% | 2015 |
| 7a, Dinas Close205 m away | 36 m² | 74 m² | +38 m² +106% | 2026 |
| 93a, Treborth Road218 m away | 36 m² | 74 m² | +38 m² +106% | 2025 |
| 93b, Treborth Road218 m away | 36 m² | 73 m² | +37 m² +103% | 2019 |
| 11a, Oakfield Road927 m away | 66 m² | 102 m² | +36 m² +55% | 2016 |
| 27, Morton Road532 m away | 63 m² | 95 m² | +32 m² +51% | 2017 |
| 46, Graham Road702 m away | 75 m² | 107 m² | +32 m² +43% | 2014 |
| 102, Sealand Road866 m away | 73 m² | 103 m² | +30 m² +41% | 2024 |
| 6, Lloyd Place594 m away | 71 m² | 100 m² | +29 m² +41% | 2017 |
| 11a, Dinas Close205 m away | 36 m² | 63 m² | +27 m² +75% | 2025 |
| 11, Conway Grove344 m away | 66 m² | 90 m² | +24 m² +36% | 2024 |
| 20, Woodside Road989 m away | 40 m² | 63 m² | +23 m² +57% | 2016 |
| 174a, Sealand Road589 m away | 88 m² | 110 m² | +22 m² +25% | 2017 |
| 4, Conway Grove344 m away | 66 m² | 87 m² | +21 m² +32% | 2019 |
| 15, Willan Road415 m away | 106 m² | 127 m² | +21 m² +20% | 2016 |
| 16, Dalton Close419 m away | 51 m² | 71 m² | +20 m² +39% | 2025 |
| 1b, Ashfield Crescent917 m away | 79 m² | 99 m² | +20 m² +25% | 2014 |
| 47, Dyserth Road189 m away | 82 m² | 100 m² | +18 m² +22% | 2022 |
| 19, Oakfield Road927 m away | 82 m² | 99 m² | +17 m² +21% | 2016 |
| 172, Sealand Road866 m away | 65 m² | 81 m² | +16 m² +25% | 2026 |
| 2, Melverley Drive955 m away | 66 m² | 82 m² | +16 m² +24% | 2011 |
| 5, Conway Grove344 m away | 66 m² | 81 m² | +15 m² +23% | 2020 |
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.