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 TW13 5AL
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 |
|---|---|---|---|---|
| 121, Hounslow Road972 m away | 85 m² | 189 m² | +104 m² +122% | 2025 |
| 11, Clymping Dene719 m away | 135 m² | 221 m² | +86 m² +64% | 2023 |
| 36, Granville Avenue801 m away | 56 m² | 140 m² | +84 m² +150% | 2025 |
| 144, Uxbridge Road865 m away | 82 m² | 163 m² | +81 m² +99% | 2025 |
| 117, Hounslow Road972 m away | 61 m² | 134 m² | +73 m² +120% | 2019 |
| 34, Cravan Avenue822 m away | 59 m² | 130 m² | +71 m² +120% | 2026 |
| 55, Hanworth Road301 m away | 143 m² | 209 m² | +66 m² +46% | 2022 |
| 20, Sandycombe Road494 m away | 99 m² | 156 m² | +57 m² +58% | 2020 |
| 69, Trevithick Close958 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.
| 71 m² |
| 128 m² |
| +57 m² +80% |
| 2013 |
| 13, Vineyard Road893 m away | 51 m² | 106 m² | +55 m² +108% | 2013 |
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| 24, Cygnet Avenue816 m away | 90 m² | 144 m² | +54 m² +60% | 2024 |
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| 119, The Drive666 m away | 61 m² | 114 m² | +53 m² +87% | 2022 |
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| 37, The Drive737 m away | 71 m² | 122 m² | +51 m² +72% | 2025 |
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| 9, Wigley Road941 m away | 83 m² | 134 m² | +51 m² +61% | 2013 |
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| 16, Sandycombe Road494 m away | 64 m² | 115 m² | +51 m² +80% | 2012 |
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| 7, Buckingham Avenue943 m away | 50 m² | 100 m² | +50 m² +100% | 2020 |
|---|
| 50, Queens Road258 m away | 95 m² | 144 m² | +49 m² +52% | 2021 |
|---|
| 45, Queens Road251 m away | 41 m² | 87 m² | +46 m² +112% | 2018 |
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| 33, Sparrow Farm Drive776 m away | 84 m² | 130 m² | +46 m² +55% | 2014 |
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| 62, Harlington Road East391 m away | 78 m² | 123 m² | +45 m² +58% | 2026 |
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| 38, Helen Avenue699 m away | 99 m² | 144 m² | +45 m² +45% | 2021 |
|---|
| 150, Bedfont Lane748 m away | 110 m² | 155 m² | +45 m² +41% | 2015 |
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| 20, Southcote Avenue865 m away | 74 m² | 119 m² | +45 m² +61% | 2014 |
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| 2, The Green341 m away | 105 m² | 150 m² | +45 m² +43% | 2013 |
|---|
| 72, Shaftesbury Avenue867 m away | 65 m² | 108 m² | +43 m² +66% | 2025 |
|---|
| 56, Buckingham Avenue954 m away | 89 m² | 131 m² | +42 m² +47% | 2020 |
|---|
| 151, Uxbridge Road854 m away | 54 m² | 96 m² | +42 m² +78% | 2017 |
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| 249, Westmacott Drive849 m away | 58 m² | 99 m² | +41 m² +71% | 2023 |
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| 32, Tawny Close902 m away | 71 m² | 112 m² | +41 m² +58% | 2021 |
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| 31, Durham Road518 m away | 70 m² | 111 m² | +41 m² +59% | 2019 |
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| 42, Queens Road258 m away | 85 m² | 125 m² | +40 m² +47% | 2017 |
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| 39, Sparrow Farm Drive776 m away | 74 m² | 112 m² | +38 m² +51% | 2015 |
|---|
| 80, Danesbury Road254 m away | 81 m² | 118 m² | +37 m² +46% | 2026 |
|---|
| 32, Gloucester Road440 m away | 90 m² | 126 m² | +36 m² +40% | 2026 |
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| 17, Buckingham Avenue943 m away | 75 m² | 111 m² | +36 m² +48% | 2025 |
|---|
| 4, Lafone Avenue420 m away | 86 m² | 122 m² | +36 m² +42% | 2014 |
|---|
| 8, Andover Close892 m away | 55 m² | 91 m² | +36 m² +65% | 2014 |
|---|
| 94, Durham Road585 m away | 64 m² | 99 m² | +35 m² +55% | 2024 |
|---|
| 1, Clymping Dene719 m away | 120 m² | 154 m² | +34 m² +28% | 2016 |
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| 37, Danesbury Road314 m away | 80 m² | 113 m² | +33 m² +41% | 2026 |
|---|
| 17, Kings Road271 m away | 101 m² | 134 m² | +33 m² +33% | 2023 |
|---|
| 109, High Street857 m away | 101 m² | 134 m² | +33 m² +33% | 2021 |
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| 45, Harlington Road West803 m away | 94 m² | 127 m² | +33 m² +35% | 2020 |
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| 159, Sparrow Farm Drive862 m away | 81 m² | 114 m² | +33 m² +41% | 2015 |
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| 26, Westminster Close792 m away | 58 m² | 91 m² | +33 m² +57% | 2014 |
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| 149, Field Road927 m away | 55 m² | 88 m² | +33 m² +60% | 2014 |
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| 108a, Hanover Avenue745 m away | 99 m² | 131 m² | +32 m² +32% | 2019 |
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| 15a, Station Parade413 m away | 60 m² | 92 m² | +32 m² +53% | 2015 |
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| 17, Charleston Close893 m away | 44 m² | 75 m² | +31 m² +70% | 2016 |
|---|
| 22, Granville Avenue801 m away | 50 m² | 80 m² | +30 m² +60% | 2023 |
|---|
| 129, Uxbridge Road854 m away | 63 m² | 93 m² | +30 m² +48% | 2021 |
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| 42, Helen Avenue699 m away | 80 m² | 110 m² | +30 m² +38% | 2015 |
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| 46, Hounslow Road466 m away | 104 m² | 133 m² | +29 m² +28% | 2024 |
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| 66, Boundaries Road698 m away | 78 m² | 107 m² | +29 m² +37% | 2024 |
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| 33, Gladstone Avenue883 m away | 70 m² | 99 m² | +29 m² +41% | 2020 |
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| 108, Guildford Avenue946 m away | 68 m² | 96 m² | +28 m² +41% | 2022 |
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| 103a, High Street857 m away | 20 m² | 48 m² | +28 m² +140% | 2018 |
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| 15, Southern Avenue624 m away | 84 m² | 111 m² | +27 m² +32% | 2024 |
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| 187, Uxbridge Road854 m away | 75 m² | 102 m² | +27 m² +36% | 2021 |
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| 24, Gloucester Road440 m away | 53 m² | 79 m² | +26 m² +49% | 2026 |
|---|
| 1, Sandycombe Road494 m away | 91 m² | 117 m² | +26 m² +29% | 2024 |
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| 83, Hanover Avenue700 m away | 60 m² | 86 m² | +26 m² +43% | 2024 |
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| 185, Bedfont Lane852 m away | 128 m² | 154 m² | +26 m² +20% | 2016 |
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| 23, Sparrow Farm Drive776 m away | 92 m² | 117 m² | +25 m² +27% | 2025 |
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| 93, Hounslow Road972 m away | 40 m² | 65 m² | +25 m² +63% | 2020 |
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| 73, Gladstone Avenue883 m away | 70 m² | 94 m² | +24 m² +34% | 2025 |
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| 37, Wigley Road941 m away | 75 m² | 99 m² | +24 m² +32% | 2024 |
|---|
| Flat 67, Azalea House, Bedfont Lane232 m away | 66 m² | 90 m² | +24 m² +36% | 2022 |
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| 34, Buckingham Avenue954 m away | 86 m² | 110 m² | +24 m² +28% | 2021 |
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| Manama, Walsham Road793 m away | 88 m² | 111 m² | +23 m² +26% | 2023 |
|---|
| 260, Westmacott Drive885 m away | 73 m² | 96 m² | +23 m² +32% | 2022 |
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| 22, The Drive696 m away | 49 m² | 72 m² | +23 m² +47% | 2021 |
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| 38, Guildford Avenue753 m away | 67 m² | 90 m² | +23 m² +34% | 2020 |
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| 47, Park Way424 m away | 88 m² | 111 m² | +23 m² +26% | 2016 |
|---|
| 97, The Drive666 m away | 63 m² | 86 m² | +23 m² +37% | 2016 |
|---|
| 69, Hanover Avenue700 m away | 70 m² | 92 m² | +22 m² +31% | 2025 |
|---|
| 84, Queens Road258 m away | 76 m² | 98 m² | +22 m² +29% | 2022 |
|---|
| 116, Field Road892 m away | 61 m² | 83 m² | +22 m² +36% | 2022 |
|---|
| 9, Buckingham Avenue943 m away | 93 m² | 115 m² | +22 m² +24% | 2022 |
|---|
| Flat 19, Azalea House, Bedfont Lane232 m away | 71 m² | 93 m² | +22 m² +31% | 2020 |
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| 15, Trevithick Close958 m away | 51 m² | 73 m² | +22 m² +43% | 2015 |
|---|
| 13, Trevithick Close958 m away | 62 m² | 84 m² | +22 m² +35% | 2015 |
|---|
| 64, Trevithick Close958 m away | 56 m² | 78 m² | +22 m² +39% | 2014 |
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| 33, Queens Road251 m away | 70 m² | 92 m² | +22 m² +31% | 2012 |
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| 31, Queens Road251 m away | 91 m² | 112 m² | +21 m² +23% | 2024 |
|---|
| 8, Ashmead Road700 m away | 73 m² | 94 m² | +21 m² +29% | 2024 |
|---|
| Flat 6, 225, Westmacott Drive849 m away | 40 m² | 61 m² | +21 m² +53% | 2021 |
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| 17, Salisbury Road508 m away | 87 m² | 108 m² | +21 m² +24% | 2020 |
|---|
| Flat 22, Camellia House, Tilley Road329 m away | 64 m² | 84 m² | +20 m² +31% | 2026 |
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| 19, Hereford Road456 m away | 98 m² | 118 m² | +20 m² +20% | 2026 |
|---|
| 46, Boundaries Road698 m away | 82 m² | 102 m² | +20 m² +24% | 2023 |
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| 14, Queens Road258 m away | 91 m² | 111 m² | +20 m² +22% | 2021 |
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| 55, Carlton Avenue966 m away | 83 m² | 103 m² | +20 m² +24% | 2019 |
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| Flat 66, Hamlyn House, High Street286 m away | 43 m² | 63 m² | +20 m² +47% | 2016 |
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| 8, Hounslow Road466 m away | 48 m² | 68 m² | +20 m² +42% | 2015 |
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| 132, Field Road892 m away | 41 m² | 61 m² | +20 m² +49% | 2015 |
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| 43, Granville Avenue797 m away | 47 m² | 66 m² | +19 m² +40% | 2026 |
|---|
| 61, Shaftesbury Avenue808 m away | 84 m² | 103 m² | +19 m² +23% | 2026 |
|---|
| 53, Trevithick Close958 m away | 46 m² | 65 m² | +19 m² +41% | 2015 |
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| Flat 9, Mercury House, 59, High Street555 m away | 74 m² | 92 m² | +18 m² +24% | 2026 |
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| 20, Salisbury Road508 m away | 89 m² | 107 m² | +18 m² +20% | 2025 |
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| 274, Westmacott Drive885 m away | 72 m² | 90 m² | +18 m² +25% | 2025 |
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| 112, Guildford Avenue946 m away | 51 m² | 69 m² | +18 m² +35% | 2023 |
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| 44, Eldridge Close688 m away | 80 m² | 98 m² | +18 m² +23% | 2022 |
|---|
| 56, Boundaries Road698 m away | 84 m² | 102 m² | +18 m² +21% | 2021 |
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| 51, Helen Avenue724 m away | 84 m² | 102 m² | +18 m² +21% | 2017 |
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| 4, Rookeries Close940 m away | 101 m² | 119 m² | +18 m² +18% | 2017 |
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| 35, Westminster Close792 m away | 73 m² | 91 m² | +18 m² +25% | 2014 |
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| 32, Boundaries Road594 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
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| 12, Danesbury Road254 m away | 79 m² | 96 m² | +17 m² +22% | 2025 |
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| 56, Harlington Road East391 m away | 69 m² | 86 m² | +17 m² +25% | 2025 |
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| 28, Durham Road458 m away | 49 m² | 66 m² | +17 m² +35% | 2025 |
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| Flat 47, Camellia House, Tilley Road329 m away | 49 m² | 66 m² | +17 m² +35% | 2023 |
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| 24, Queens Road258 m away | 93 m² | 110 m² | +17 m² +18% | 2022 |
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| 94, Guildford Avenue753 m away | 51 m² | 68 m² | +17 m² +33% | 2021 |
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| Flat 12, Hamlyn House, High Street286 m away | 60 m² | 77 m² | +17 m² +28% | 2020 |
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| 268, Westmacott Drive885 m away | 74 m² | 91 m² | +17 m² +23% | 2015 |
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| 48, Cromwell Road242 m away | 97 m² | 113 m² | +16 m² +16% | 2024 |
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| 13, Boundaries Road649 m away | 104 m² | 120 m² | +16 m² +15% | 2024 |
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| 53, Elmwood Avenue713 m away | 77 m² | 93 m² | +16 m² +21% | 2024 |
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| 253, Westmacott Drive849 m away | 86 m² | 102 m² | +16 m² +19% | 2024 |
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| 55, Guildford Avenue902 m away | 77 m² | 93 m² | +16 m² +21% | 2024 |
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| 27, Shaftesbury Avenue808 m away | 79 m² | 95 m² | +16 m² +20% | 2023 |
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| 264, Westmacott Drive885 m away | 78 m² | 94 m² | +16 m² +21% | 2023 |
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| 220, Sparrow Farm Drive919 m away | 96 m² | 112 m² | +16 m² +17% | 2019 |
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| 8, Park Way384 m away | 54 m² | 70 m² | +16 m² +30% | 2016 |
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| 278, Westmacott Drive885 m away | 62 m² | 78 m² | +16 m² +26% | 2015 |
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| 28, Jubilee Way819 m away | 70 m² | 86 m² | +16 m² +23% | 2014 |
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| 48, Gladstone Avenue913 m away | 67 m² | 83 m² | +16 m² +24% | 2014 |
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| 4, Wigley Road895 m away | 95 m² | 111 m² | +16 m² +17% | 2011 |
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| 126, Durham Road585 m away | 77 m² | 92 m² | +15 m² +19% | 2026 |
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| 247, Westmacott Drive849 m away | 69 m² | 84 m² | +15 m² +22% | 2026 |
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| 60, Bertelli Place145 m away | 84 m² | 99 m² | +15 m² +18% | 2021 |
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| Flat 29, Azalea House, Bedfont Lane232 m away | 72 m² | 87 m² | +15 m² +21% | 2020 |
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| 118, Uxbridge Road865 m away | 78 m² | 93 m² | +15 m² +19% | 2016 |
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