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 TW14 0DX
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 Road730 m away | 85 m² | 189 m² | +104 m² +122% | 2025 |
| 128, Sparrow Farm Drive358 m away | 68 m² | 168 m² | +100 m² +147% | 2026 |
| 59, Farm Road884 m away | 69 m² | 161 m² | +92 m² +133% | 2015 |
| 11, Clymping Dene787 m away | 135 m² | 221 m² | +86 m² +64% | 2023 |
| 62, Viola Avenue608 m away | 68 m² | 150 m² | +82 m² +121% | 2023 |
| 144, Uxbridge Road764 m away | 82 m² | 163 m² | +81 m² +99% | 2025 |
| 117, Hounslow Road730 m away | 61 m² | 134 m² | +73 m² +120% | 2019 |
| 55, Hanworth Road597 m away | 143 m² | 209 m² | +66 m² +46% | 2022 |
| 186, Hounslow Road890 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.
| 72 m² |
| 138 m² |
| +66 m² +92% |
| 2020 |
| 77, Cygnet Avenue258 m away | 51 m² | 115 m² | +64 m² +125% | 2015 |
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| 59, Mill Farm Crescent933 m away | 89 m² | 152 m² | +63 m² +71% | 2026 |
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| 70, Wigley Road749 m away | 91 m² | 153 m² | +62 m² +68% | 2026 |
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| 24, Cygnet Avenue0 m away | 90 m² | 144 m² | +54 m² +60% | 2024 |
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| 14, Little Park Drive983 m away | 71 m² | 125 m² | +54 m² +76% | 2020 |
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| 119, The Drive284 m away | 61 m² | 114 m² | +53 m² +87% | 2022 |
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| 115, Wigley Road601 m away | 84 m² | 136 m² | +52 m² +62% | 2017 |
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| 115, Carlton Avenue402 m away | 87 m² | 138 m² | +51 m² +59% | 2025 |
|---|
| 37, The Drive482 m away | 71 m² | 122 m² | +51 m² +72% | 2025 |
|---|
| 9, Wigley Road657 m away | 83 m² | 134 m² | +51 m² +61% | 2013 |
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| 50, Queens Road579 m away | 95 m² | 144 m² | +49 m² +52% | 2021 |
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| 24, Mill Farm Crescent942 m away | 120 m² | 166 m² | +46 m² +38% | 2022 |
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| 45, Queens Road604 m away | 41 m² | 87 m² | +46 m² +112% | 2018 |
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| 33, Sparrow Farm Drive146 m away | 84 m² | 130 m² | +46 m² +55% | 2014 |
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| 62, Harlington Road East485 m away | 78 m² | 123 m² | +45 m² +58% | 2026 |
|---|
| 38, Helen Avenue911 m away | 99 m² | 144 m² | +45 m² +45% | 2021 |
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| 151, Uxbridge Road809 m away | 54 m² | 96 m² | +42 m² +78% | 2017 |
|---|
| 31, Durham Road367 m away | 70 m² | 111 m² | +41 m² +59% | 2019 |
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| 42, Queens Road579 m away | 85 m² | 125 m² | +40 m² +47% | 2017 |
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| 39, Sparrow Farm Drive146 m away | 74 m² | 112 m² | +38 m² +51% | 2015 |
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| 80, Danesbury Road818 m away | 81 m² | 118 m² | +37 m² +46% | 2026 |
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| 32, Gloucester Road377 m away | 90 m² | 126 m² | +36 m² +40% | 2026 |
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| 4, Lafone Avenue708 m away | 86 m² | 122 m² | +36 m² +42% | 2014 |
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| 94, Durham Road258 m away | 64 m² | 99 m² | +35 m² +55% | 2024 |
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| 102, Carlton Avenue344 m away | 83 m² | 118 m² | +35 m² +42% | 2023 |
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| 1, Clymping Dene787 m away | 120 m² | 154 m² | +34 m² +28% | 2016 |
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| 37, Danesbury Road795 m away | 80 m² | 113 m² | +33 m² +41% | 2026 |
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| 17, Kings Road554 m away | 101 m² | 134 m² | +33 m² +33% | 2023 |
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| 45, Harlington Road West821 m away | 94 m² | 127 m² | +33 m² +35% | 2020 |
|---|
| 159, Sparrow Farm Drive351 m away | 81 m² | 114 m² | +33 m² +41% | 2015 |
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| 149, Field Road813 m away | 55 m² | 88 m² | +33 m² +60% | 2014 |
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| 74, Cygnet Avenue280 m away | 93 m² | 125 m² | +32 m² +34% | 2019 |
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| 180, Cygnet Avenue371 m away | 88 m² | 120 m² | +32 m² +36% | 2018 |
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| 15a, Station Parade728 m away | 60 m² | 92 m² | +32 m² +53% | 2015 |
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| 129, Uxbridge Road809 m away | 63 m² | 93 m² | +30 m² +48% | 2021 |
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| 7, Eastbourne Road910 m away | 92 m² | 122 m² | +30 m² +33% | 2016 |
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| 42, Helen Avenue911 m away | 80 m² | 110 m² | +30 m² +38% | 2015 |
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| 66, Boundaries Road376 m away | 78 m² | 107 m² | +29 m² +37% | 2024 |
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| 46, Hounslow Road661 m away | 104 m² | 133 m² | +29 m² +28% | 2024 |
|---|
| 31, Beeston Way797 m away | 46 m² | 75 m² | +29 m² +63% | 2021 |
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| 187, Uxbridge Road809 m away | 75 m² | 102 m² | +27 m² +36% | 2021 |
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| 24, Gloucester Road377 m away | 53 m² | 79 m² | +26 m² +49% | 2026 |
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| 23, Sparrow Farm Drive146 m away | 92 m² | 117 m² | +25 m² +27% | 2025 |
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| 93, Hounslow Road730 m away | 40 m² | 65 m² | +25 m² +63% | 2020 |
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| 32, Westbury Road753 m away | 44 m² | 69 m² | +25 m² +57% | 2010 |
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| 37, Wigley Road657 m away | 75 m² | 99 m² | +24 m² +32% | 2024 |
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| Flat 67, Azalea House, Bedfont Lane996 m away | 66 m² | 90 m² | +24 m² +36% | 2022 |
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| Manama, Walsham Road706 m away | 88 m² | 111 m² | +23 m² +26% | 2023 |
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| 22, The Drive476 m away | 49 m² | 72 m² | +23 m² +47% | 2021 |
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| 97, The Drive284 m away | 63 m² | 86 m² | +23 m² +37% | 2016 |
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| 47, Park Way548 m away | 88 m² | 111 m² | +23 m² +26% | 2016 |
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| 19, Meadow Road983 m away | 93 m² | 115 m² | +22 m² +24% | 2026 |
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| 84, Queens Road579 m away | 76 m² | 98 m² | +22 m² +29% | 2022 |
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| 116, Field Road773 m away | 61 m² | 83 m² | +22 m² +36% | 2022 |
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| Flat 19, Azalea House, Bedfont Lane996 m away | 71 m² | 93 m² | +22 m² +31% | 2020 |
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| 105, Carlton Avenue402 m away | 95 m² | 117 m² | +22 m² +23% | 2014 |
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| 33, Queens Road604 m away | 70 m² | 92 m² | +22 m² +31% | 2012 |
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| 31, Queens Road604 m away | 91 m² | 112 m² | +21 m² +23% | 2024 |
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| 137, Hounslow Road832 m away | 77 m² | 98 m² | +21 m² +27% | 2024 |
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| 6, Meadow Road953 m away | 78 m² | 99 m² | +21 m² +27% | 2024 |
|---|
| 124, Sparrow Farm Drive358 m away | 87 m² | 108 m² | +21 m² +24% | 2022 |
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| 17, Salisbury Road446 m away | 87 m² | 108 m² | +21 m² +24% | 2020 |
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| 69, Viola Avenue573 m away | 97 m² | 118 m² | +21 m² +22% | 2015 |
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| 19, Hereford Road396 m away | 98 m² | 118 m² | +20 m² +20% | 2026 |
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| 46, Boundaries Road376 m away | 82 m² | 102 m² | +20 m² +24% | 2023 |
|---|
| 14, Queens Road579 m away | 91 m² | 111 m² | +20 m² +22% | 2021 |
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| 55, Carlton Avenue565 m away | 83 m² | 103 m² | +20 m² +24% | 2019 |
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| 8, Hounslow Road661 m away | 48 m² | 68 m² | +20 m² +42% | 2015 |
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| 132, Field Road773 m away | 41 m² | 61 m² | +20 m² +49% | 2015 |
|---|
| 117, Sparrow Farm Drive262 m away | 101 m² | 120 m² | +19 m² +19% | 2021 |
|---|
| 20, Salisbury Road446 m away | 89 m² | 107 m² | +18 m² +20% | 2025 |
|---|
| 56, Boundaries Road376 m away | 84 m² | 102 m² | +18 m² +21% | 2021 |
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| 51, Helen Avenue878 m away | 84 m² | 102 m² | +18 m² +21% | 2017 |
|---|
| 32, Boundaries Road449 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
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| 28, Durham Road446 m away | 49 m² | 66 m² | +17 m² +35% | 2025 |
|---|
| 56, Harlington Road East485 m away | 69 m² | 86 m² | +17 m² +25% | 2025 |
|---|
| 12, Danesbury Road818 m away | 79 m² | 96 m² | +17 m² +22% | 2025 |
|---|
| 24, Queens Road579 m away | 93 m² | 110 m² | +17 m² +18% | 2022 |
|---|
| 153, Cygnet Avenue258 m away | 86 m² | 102 m² | +16 m² +19% | 2025 |
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| 13, Boundaries Road352 m away | 104 m² | 120 m² | +16 m² +15% | 2024 |
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| 48, Cromwell Road574 m away | 97 m² | 113 m² | +16 m² +16% | 2024 |
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| 182, Hounslow Road890 m away | 102 m² | 118 m² | +16 m² +16% | 2023 |
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| 220, Sparrow Farm Drive323 m away | 96 m² | 112 m² | +16 m² +17% | 2019 |
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| 8, Park Way628 m away | 54 m² | 70 m² | +16 m² +30% | 2016 |
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| 4, Wigley Road741 m away | 95 m² | 111 m² | +16 m² +17% | 2011 |
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| 126, Durham Road258 m away | 77 m² | 92 m² | +15 m² +19% | 2026 |
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| 60, Bertelli Place900 m away | 84 m² | 99 m² | +15 m² +18% | 2021 |
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| Flat 29, Azalea House, Bedfont Lane996 m away | 72 m² | 87 m² | +15 m² +21% | 2020 |
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| 1, Byward Avenue824 m away | 65 m² | 80 m² | +15 m² +23% | 2019 |
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| 118, Uxbridge Road764 m away | 78 m² | 93 m² | +15 m² +19% | 2016 |
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