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 CF3 3HF
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 |
|---|---|---|---|---|
| 191, Greenway Road751 m away | 65 m² | 146 m² | +81 m² +125% | 2021 |
| 2, The Avenue174 m away | 67 m² | 136 m² | +69 m² +103% | 2023 |
| 768, Newport Road815 m away | 68 m² | 136 m² | +68 m² +100% | 2021 |
| 217, Greenway Road997 m away | 57 m² | 119 m² | +62 m² +109% | 2023 |
| 68, Church Road613 m away | 63 m² | 122 m² | +59 m² +94% | 2025 |
| 664, Newport Road950 m away | 194 m² | 253 m² | +59 m² +30% | 2024 |
| 34, Tyr-Y-Sarn Road525 m away | 87 m² | 145 m² | +58 m² +67% | 2025 |
| 59, Ty Mawr Road598 m away | 87 m² | 145 m² | +58 m² +67% | 2022 |
| 57, Ty Mawr Road598 m away |
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.
| 86 m² |
| 142 m² |
| +56 m² +65% |
| 2026 |
| 86, Harris Avenue892 m away | 51 m² | 105 m² | +54 m² +106% | 2020 |
|---|
| 11, Tyr-Y-Sarn Road525 m away | 69 m² | 119 m² | +50 m² +72% | 2024 |
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| 5, Ty Fry Close788 m away | 46 m² | 92 m² | +46 m² +100% | 2016 |
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| 45, Ty Fry Gardens694 m away | 70 m² | 113 m² | +43 m² +61% | 2014 |
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| 1, Pwllmawr Avenue69 m away | 87 m² | 129 m² | +42 m² +48% | 2024 |
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| 24, Farmleigh511 m away | 88 m² | 127 m² | +39 m² +44% | 2026 |
|---|
| 31, Goodwick Road253 m away | 72 m² | 111 m² | +39 m² +54% | 2020 |
|---|
| 44, Tyr-Y-Sarn Road525 m away | 114 m² | 153 m² | +39 m² +34% | 2015 |
|---|
| 13, Ty Mawr Road838 m away | 83 m² | 121 m² | +38 m² +46% | 2026 |
|---|
| 9a, The Grove133 m away | 102 m² | 140 m² | +38 m² +37% | 2024 |
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| 668, Newport Road950 m away | 120 m² | 158 m² | +38 m² +32% | 2021 |
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| 77, Ty Fry Road561 m away | 95 m² | 131 m² | +36 m² +38% | 2022 |
|---|
| 22, Tyr-Y-Sarn Road525 m away | 92 m² | 126 m² | +34 m² +37% | 2019 |
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| 26, Manorbier Crescent853 m away | 82 m² | 116 m² | +34 m² +41% | 2013 |
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| 28, Downton Rise343 m away | 93 m² | 126 m² | +33 m² +35% | 2025 |
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| 152, Wentloog Road84 m away | 75 m² | 107 m² | +32 m² +43% | 2024 |
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| 3, Llandudno Road751 m away | 59 m² | 90 m² | +31 m² +53% | 2016 |
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| 10, Claremont Avenue691 m away | 89 m² | 119 m² | +30 m² +34% | 2026 |
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| 38, Northlands659 m away | 77 m² | 106 m² | +29 m² +38% | 2022 |
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| 99, Wentloog Road402 m away | 116 m² | 144 m² | +28 m² +24% | 2024 |
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| 3, Whitehall Place744 m away | 68 m² | 96 m² | +28 m² +41% | 2024 |
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| 26, Harlech Road138 m away | 82 m² | 108 m² | +26 m² +32% | 2025 |
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| 71, Ty Mawr Road598 m away | 96 m² | 121 m² | +25 m² +26% | 2016 |
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| 4, Colwyn Road467 m away | 75 m² | 100 m² | +25 m² +33% | 2013 |
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| 94, Wentloog Road441 m away | 30 m² | 54 m² | +24 m² +80% | 2011 |
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| 6, Brachdy Road446 m away | 100 m² | 123 m² | +23 m² +23% | 2025 |
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| 16, Laugharne Road323 m away | 74 m² | 97 m² | +23 m² +31% | 2022 |
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| 105, Wentloog Road402 m away | 85 m² | 108 m² | +23 m² +27% | 2022 |
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| 103, Wentloog Road402 m away | 40 m² | 62 m² | +22 m² +55% | 2025 |
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| 11, Colwyn Road467 m away | 88 m² | 110 m² | +22 m² +25% | 2024 |
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| 39, Kennerleigh Road931 m away | 61 m² | 83 m² | +22 m² +36% | 2016 |
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| 18, Barmouth Road347 m away | 128 m² | 149 m² | +21 m² +16% | 2013 |
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| 4, Llanstephan Road382 m away | 76 m² | 96 m² | +20 m² +26% | 2023 |
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| 205, New Road400 m away | 97 m² | 117 m² | +20 m² +21% | 2016 |
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| 58, Ty Fry Road603 m away | 127 m² | 147 m² | +20 m² +16% | 2013 |
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| 41, Kennerleigh Road931 m away | 61 m² | 80 m² | +19 m² +31% | 2025 |
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| 5, Rhyl Road639 m away | 63 m² | 82 m² | +19 m² +30% | 2021 |
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| 148, Wentloog Road84 m away | 89 m² | 107 m² | +18 m² +20% | 2025 |
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| 60, Ty Mawr Road609 m away | 67 m² | 85 m² | +18 m² +27% | 2025 |
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| 39, Goodwick Road250 m away | 74 m² | 92 m² | +18 m² +24% | 2024 |
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| 45, Whitehall Parade698 m away | 91 m² | 109 m² | +18 m² +20% | 2024 |
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| Flat 31, Wentloog Court, Wentloog Road759 m away | 57 m² | 75 m² | +18 m² +32% | 2024 |
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| 3, Old Police Station, Highcroft Walk988 m away | 31 m² | 49 m² | +18 m² +58% | 2022 |
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| 52, Cranleigh Rise912 m away | 103 m² | 121 m² | +18 m² +17% | 2018 |
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| 187, Greenway Road751 m away | 69 m² | 87 m² | +18 m² +26% | 2014 |
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| 45, Kennerleigh Road931 m away | 56 m² | 74 m² | +18 m² +32% | 2013 |
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| 46, Harlech Road315 m away | 96 m² | 113 m² | +17 m² +18% | 2024 |
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| 218, Greenway Road969 m away | 86 m² | 103 m² | +17 m² +20% | 2022 |
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| 19, The Grove133 m away | 99 m² | 115 m² | +16 m² +16% | 2023 |
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| 46, Wentloog Road679 m away | 88 m² | 104 m² | +16 m² +18% | 2023 |
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