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 SA1 8BR
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 |
|---|---|---|---|---|
| 70, Port Tennant Road321 m away | 69 m² | 146 m² | +77 m² +112% | 2022 |
| 78, St Christophers Court978 m away | 75 m² | 143 m² | +68 m² +91% | 2013 |
| 4, St Thomas Mews, Kilvey Terrace305 m away | 48 m² | 106 m² | +58 m² +121% | 2020 |
| Apartment 3, St Thomas Lofts, Kilvey Terrace339 m away | 39 m² | 95 m² | +56 m² +144% | 2013 |
| 3, St Thomas Mews305 m away | 48 m² | 101 m² | +53 m² +110% | 2019 |
| 32, Windmill Terrace419 m away | 84 m² | 134 m² | +50 m² +60% | 2024 |
| 17, Kinley Street392 m away | 39 m² | 87 m² | +48 m² +123% | 2014 |
| 12, Sebastopol Street43 m away | 84 m² | 130 m² | +46 m² +55% | 2016 |
| Apartment 14, St Thomas Lofts, Kilvey Terrace |
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.
| 65 m² |
| 110 m² |
| +45 m² +69% |
| 2019 |
| 138, Kilvey Road716 m away | 90 m² | 134 m² | +44 m² +49% | 2025 |
|---|
| Apartment 30, St Thomas Lofts, Kilvey Terrace339 m away | 39 m² | 83 m² | +44 m² +113% | 2019 |
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| 1, St Thomas Mews, Kilvey Terrace305 m away | 48 m² | 91 m² | +43 m² +90% | 2020 |
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| 42, Foxhole Road814 m away | 117 m² | 160 m² | +43 m² +37% | 2020 |
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| 5, St Thomas Mews, Kilvey Terrace305 m away | 48 m² | 90 m² | +42 m² +88% | 2021 |
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| Apartment 6, St Thomas Lofts, Kilvey Terrace339 m away | 39 m² | 81 m² | +42 m² +108% | 2020 |
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| 17, Miers Street151 m away | 80 m² | 121 m² | +41 m² +51% | 2022 |
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| Apartment 27, St Thomas Lofts, Kilvey Terrace339 m away | 39 m² | 80 m² | +41 m² +105% | 2019 |
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| Apartment 18, St Thomas Lofts, Kilvey Terrace339 m away | 39 m² | 79 m² | +40 m² +103% | 2024 |
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| 34, Aurora, Trawler Road855 m away | 89 m² | 129 m² | +40 m² +45% | 2009 |
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| 36, Cambrian Place615 m away | 61 m² | 98 m² | +37 m² +61% | 2019 |
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| 49, Windmill Terrace419 m away | 62 m² | 99 m² | +37 m² +60% | 2016 |
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| 42, Cork House, Mannheim Quay640 m away | 65 m² | 101 m² | +36 m² +55% | 2021 |
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| Apartment 24, South Quay, Kings Road508 m away | 73 m² | 109 m² | +36 m² +49% | 2020 |
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| 5, Castle Lofts, Castle Street817 m away | 48 m² | 84 m² | +36 m² +75% | 2010 |
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| 71, Port Tennant Road456 m away | 108 m² | 143 m² | +35 m² +32% | 2016 |
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| Apartment 25, St Thomas Lofts, Kilvey Terrace339 m away | 36 m² | 70 m² | +34 m² +94% | 2020 |
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| 37, Abernethy Quay896 m away | 65 m² | 99 m² | +34 m² +52% | 2019 |
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| Apartment 8, St Thomas Lofts, Kilvey Terrace339 m away | 47 m² | 80 m² | +33 m² +70% | 2021 |
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| Apartment 26, St Thomas Lofts, Kilvey Terrace339 m away | 77 m² | 109 m² | +32 m² +42% | 2023 |
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| 133, Langdon Road802 m away | 147 m² | 179 m² | +32 m² +22% | 2020 |
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| 32, St Stephens Court814 m away | 72 m² | 104 m² | +32 m² +44% | 2019 |
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| 38, Danygraig Road798 m away | 79 m² | 109 m² | +30 m² +38% | 2014 |
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| 10, St Christophers Court978 m away | 129 m² | 158 m² | +29 m² +22% | 2024 |
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| 11, Middleton Street482 m away | 92 m² | 121 m² | +29 m² +32% | 2021 |
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| 27, Kilvey Terrace307 m away | 112 m² | 139 m² | +27 m² +24% | 2026 |
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| 3, Margaret Street585 m away | 106 m² | 133 m² | +27 m² +25% | 2025 |
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| Apartment 22, St Thomas Lofts, Kilvey Terrace339 m away | 27 m² | 54 m² | +27 m² +100% | 2012 |
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| Apartment 63, South Quay, Kings Road524 m away | 52 m² | 79 m² | +27 m² +52% | 2012 |
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| 12, Deepglade Close663 m away | 52 m² | 77 m² | +25 m² +48% | 2023 |
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| 48, Baglan Street941 m away | 93 m² | 118 m² | +25 m² +27% | 2023 |
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| Apartment 121, South Quay, Kings Road542 m away | 52 m² | 77 m² | +25 m² +48% | 2019 |
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| Apartment 157, South Quay, Kings Road542 m away | 73 m² | 98 m² | +25 m² +34% | 2019 |
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| 117, Port Tennant Road556 m away | 105 m² | 130 m² | +25 m² +24% | 2016 |
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| 8, Delhi Street82 m away | 94 m² | 119 m² | +25 m² +27% | 2013 |
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| 53, St Catherines Court832 m away | 129 m² | 154 m² | +25 m² +19% | 2013 |
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| 33, St Catherines Court832 m away | 115 m² | 139 m² | +24 m² +21% | 2022 |
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| Apartment 69, South Quay, Kings Road524 m away | 52 m² | 76 m² | +24 m² +46% | 2021 |
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| 229, Port Tennant Road825 m away | 46 m² | 69 m² | +23 m² +50% | 2026 |
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| 20, Danygraig Road676 m away | 150 m² | 173 m² | +23 m² +15% | 2024 |
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| 57, Pentreguinea Road354 m away | 83 m² | 105 m² | +22 m² +27% | 2022 |
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| 16, Elmhurst Crescent427 m away | 73 m² | 95 m² | +22 m² +30% | 2016 |
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| Apartment 101, South Quay, Kings Road542 m away | 53 m² | 75 m² | +22 m² +42% | 2012 |
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| 28, St Catherines Court832 m away | 56 m² | 78 m² | +22 m² +39% | 2010 |
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| 28, Hafod Street925 m away | 88 m² | 109 m² | +21 m² +24% | 2022 |
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| Apartment 91, South Quay, Kings Road524 m away | 59 m² | 80 m² | +21 m² +36% | 2019 |
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| Flat 14, Monmouth House, Mannheim Quay672 m away | 51 m² | 72 m² | +21 m² +41% | 2018 |
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| Apartment 77, South Quay, Kings Road524 m away | 73 m² | 94 m² | +21 m² +29% | 2011 |
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| 42, Pocketts Wharf619 m away | 51 m² | 72 m² | +21 m² +41% | 2008 |
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| 32, Delhi Street67 m away | 66 m² | 86 m² | +20 m² +30% | 2021 |
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| 65, St Catherines Court832 m away | 71 m² | 91 m² | +20 m² +28% | 2020 |
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| 38, Fishermans Way941 m away | 65 m² | 85 m² | +20 m² +31% | 2020 |
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| 57, Fishermans Way941 m away | 68 m² | 88 m² | +20 m² +29% | 2020 |
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| 2, Castle Lofts, Castle Street817 m away | 68 m² | 87 m² | +19 m² +28% | 2023 |
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| Apartment 1, Salubrious Court, Salubrious Passage839 m away | 44 m² | 63 m² | +19 m² +43% | 2022 |
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| Apartment 75, South Quay, Kings Road524 m away | 52 m² | 71 m² | +19 m² +37% | 2019 |
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| Apartment 6, Aurora, Trawler Road855 m away | 55 m² | 74 m² | +19 m² +35% | 2019 |
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| Flat 109, Altamar, Kings Road417 m away | 51 m² | 69 m² | +18 m² +35% | 2021 |
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| Flat 16, Monmouth House, Mannheim Quay672 m away | 46 m² | 64 m² | +18 m² +39% | 2019 |
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| 43, Pocketts Wharf619 m away | 55 m² | 73 m² | +18 m² +33% | 2009 |
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| 9, Vicarage Terrace187 m away | 94 m² | 111 m² | +17 m² +18% | 2024 |
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| Apartment 306, Pearl House, 43, Princess Way954 m away | 44 m² | 61 m² | +17 m² +39% | 2022 |
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| 11, Llys Hafan, Lamberts Road399 m away | 54 m² | 71 m² | +17 m² +31% | 2021 |
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| 8, Hafod Street925 m away | 105 m² | 122 m² | +17 m² +16% | 2021 |
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| Apartment 87, South Quay, Kings Road524 m away | 52 m² | 69 m² | +17 m² +33% | 2019 |
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| Apartment 30, Aurora, Trawler Road855 m away | 55 m² | 72 m² | +17 m² +31% | 2018 |
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| 8, Sebastopol Street43 m away | 71 m² | 88 m² | +17 m² +24% | 2013 |
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| Apartment 119, South Quay, Kings Road542 m away | 88 m² | 104 m² | +16 m² +18% | 2012 |
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| 46, St Catherines Court832 m away | 64 m² | 79 m² | +15 m² +23% | 2025 |
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| 54, Lydford Avenue457 m away | 79 m² | 94 m² | +15 m² +19% | 2024 |
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| 15 - 20, Castle Street856 m away | 71 m² | 86 m² | +15 m² +21% | 2021 |
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| Apartment 23, South Quay, Kings Road508 m away | 61 m² | 76 m² | +15 m² +25% | 2019 |
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| Apartment 103, South Quay, Kings Road542 m away | 83 m² | 98 m² | +15 m² +18% | 2019 |
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| Apartment 112, South Quay, Kings Road542 m away | 83 m² | 98 m² | +15 m² +18% | 2019 |
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| Apartment 16, Marina Villas, Trawler Road799 m away | 43 m² | 58 m² | +15 m² +35% | 2019 |
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| Apartment 5, Aurora, Trawler Road855 m away | 64 m² | 79 m² | +15 m² +23% | 2019 |
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| 25, St Catherines Court832 m away | 64 m² | 79 m² | +15 m² +23% | 2018 |
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