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 CF38 1AD
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 |
|---|---|---|---|---|
| 24, Penywaun869 m away | 110 m² | 179 m² | +69 m² +63% | 2016 |
| 41, Penywaun869 m away | 129 m² | 192 m² | +63 m² +49% | 2018 |
| 7, Ffordd Y Capel659 m away | 100 m² | 156 m² | +56 m² +56% | 2023 |
| 35, Parc Nant Celyn0 m away | 94 m² | 149 m² | +55 m² +59% | 2023 |
| 95, Parc Nant Celyn103 m away | 123 m² | 176 m² | +53 m² +43% | 2026 |
| 16, Meadow Brook705 m away | 140 m² | 186 m² | +46 m² +33% | 2023 |
| 3, Llys Y Fran948 m away | 90 m² | 132 m² | +42 m² +47% | 2019 |
| 7, Butterfly Close773 m away | 107 m² | 145 m² | +38 m² +36% | 2021 |
| 6, Acorn Grove893 m away | 113 m² | 147 m² | +34 m² +30% | 2020 |
| 5, Cwrt Coed Y Brenin976 m away | 93 m² | 126 m² | +33 m² +35% | 2016 |
| 147, Parc Nant Celyn283 m away | 155 m² | 187 m² | +32 m² +21% | 2021 |
| 30, Lon Y Cadno888 m away | 157 m² | 186 m² | +29 m² +18% | 2023 |
| 15, Heol Y Ffynnon829 m away | 81 m² | 109 m² | +28 m² +35% | 2017 |
| 3, Cwrt Coed Y Brenin976 m away | 113 m² | 141 m² | +28 m² +25% | 2016 |
| 49, Heol Y Ffynnon829 m away | 99 m² | 124 m² | +25 m² +25% | 2026 |
| 2, Duffryn Bach Terrace501 m away | 88 m² | 112 m² | +24 m² +27% | 2023 |
| 33, Acorn Grove893 m away | 81 m² | 105 m² | +24 m² +30% | 2014 |
| 14, Cwrt Coed Y Brenin976 m away | 125 m² | 148 m² | +23 m² +18% | 2016 |
| 14, Broadacres760 m away | 84 m² | 106 m² | +22 m² +26% | 2015 |
| 1, Butterfly Close773 m away | 121 m² | 143 m² | +22 m² +18% | 2015 |
| 4, Allt Y Wiwer840 m away | 112 m² | 133 m² | +21 m² +19% | 2012 |
| 45, Brookdale Court944 m away | 74 m² | 94 m² | +20 m² +27% | 2026 |
| 18, Broadacres760 m away | 73 m² | 91 m² | +18 m² +25% | 2022 |
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.