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 BN15 8EN
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 |
|---|---|---|---|---|
| 86, Ingleside Crescent228 m away | 83 m² | 195 m² | +112 m² +135% | 2020 |
| 72, Grinstead Lane949 m away | 82 m² | 183 m² | +101 m² +123% | 2019 |
| 3, Mash Barn Lane786 m away | 80 m² | 160 m² | +80 m² +100% | 2023 |
| 58, Brighton Road498 m away | 94 m² | 174 m² | +80 m² +85% | 2018 |
| 187, Brighton Road458 m away | 91 m² | 166 m² | +75 m² +82% | 2021 |
| 179, Brighton Road458 m away | 81 m² | 148 m² | +67 m² +83% | 2025 |
| 183, Brighton Road458 m away | 121 m² | 187 m² | +66 m² +55% | 2026 |
| 125, Brighton Road381 m away | 87 m² | 153 m² | +66 m² +76% | 2016 |
| 69, Crabtree Lane943 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.
| 64 m² |
| 128 m² |
| +64 m² +100% |
| 2022 |
| 9, Culver Road505 m away | 69 m² | 133 m² | +64 m² +93% | 2019 |
|---|
| 243, Brighton Road827 m away | 111 m² | 171 m² | +60 m² +54% | 2020 |
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| 27, Barfield Park809 m away | 72 m² | 130 m² | +58 m² +81% | 2025 |
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| 8, Gordon Road989 m away | 67 m² | 125 m² | +58 m² +87% | 2025 |
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| 96, Brighton Road789 m away | 89 m² | 147 m² | +58 m² +65% | 2022 |
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| 6, Crabtree Lane783 m away | 56 m² | 113 m² | +57 m² +102% | 2016 |
|---|
| 2, Brighton Road927 m away | 68 m² | 124 m² | +56 m² +82% | 2015 |
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| 231, Brighton Road827 m away | 68 m² | 123 m² | +55 m² +81% | 2019 |
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| 23, Leconfield Road981 m away | 78 m² | 133 m² | +55 m² +71% | 2015 |
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| 62, Shadwells Road967 m away | 86 m² | 139 m² | +53 m² +62% | 2014 |
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| 7, Barfield Park671 m away | 65 m² | 116 m² | +51 m² +78% | 2019 |
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| 17, Alexandra Road480 m away | 111 m² | 162 m² | +51 m² +46% | 2015 |
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| 1, Bridge Close112 m away | 71 m² | 121 m² | +50 m² +70% | 2013 |
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| 2, Crabtree Lane783 m away | 60 m² | 109 m² | +49 m² +82% | 2020 |
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| 44, Brighton Road498 m away | 253 m² | 301 m² | +48 m² +19% | 2022 |
|---|
| 121, Kings Road31 m away | 92 m² | 139 m² | +47 m² +51% | 2025 |
|---|
| 12, Croshaw Close760 m away | 54 m² | 100 m² | +46 m² +85% | 2014 |
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| 88, Sompting Road764 m away | 81 m² | 126 m² | +45 m² +56% | 2015 |
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| 35, Brook Way269 m away | 65 m² | 108 m² | +43 m² +66% | 2016 |
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| Compactus, 6, Old Salts Farm Road531 m away | 77 m² | 118 m² | +41 m² +53% | 2016 |
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| 8, Ingleside Crescent0 m away | 62 m² | 102 m² | +40 m² +65% | 2026 |
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| 76, Chester Avenue343 m away | 111 m² | 151 m² | +40 m² +36% | 2025 |
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| 51, Wembley Avenue816 m away | 68 m² | 108 m² | +40 m² +59% | 2015 |
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| 3, Abbots Way569 m away | 78 m² | 118 m² | +40 m² +51% | 2014 |
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| 25, Annweir Avenue767 m away | 90 m² | 129 m² | +39 m² +43% | 2023 |
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| 1, Bessborough Terrace779 m away | 33 m² | 71 m² | +38 m² +115% | 2019 |
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| 59, Chester Avenue343 m away | 25 m² | 62 m² | +37 m² +148% | 2025 |
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| Flat 6, Kings Court, Brighton Road414 m away | 82 m² | 119 m² | +37 m² +45% | 2012 |
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| 88, Chester Avenue343 m away | 85 m² | 121 m² | +36 m² +42% | 2020 |
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| 57, Ingleside Crescent228 m away | 62 m² | 98 m² | +36 m² +58% | 2015 |
|---|
| 25, Burrell Avenue559 m away | 84 m² | 120 m² | +36 m² +43% | 2015 |
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| 149, South Street494 m away | 82 m² | 117 m² | +35 m² +43% | 2023 |
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| 1, Roberts Road255 m away | 53 m² | 88 m² | +35 m² +66% | 2022 |
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| 60, Sompting Road764 m away | 109 m² | 144 m² | +35 m² +32% | 2021 |
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| 72, Annweir Avenue690 m away | 79 m² | 114 m² | +35 m² +44% | 2015 |
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| 29, The Crescent382 m away | 91 m² | 125 m² | +34 m² +37% | 2024 |
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| Flat 21, Marlin Court, 32, Brighton Road388 m away | 40 m² | 73 m² | +33 m² +83% | 2026 |
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| 38, Lancing Close945 m away | 120 m² | 153 m² | +33 m² +28% | 2024 |
|---|
| 4, North Farm Road449 m away | 72 m² | 105 m² | +33 m² +46% | 2018 |
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| 39, Culver Road505 m away | 125 m² | 157 m² | +32 m² +26% | 2026 |
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| 94, Brighton Road789 m away | 78 m² | 110 m² | +32 m² +41% | 2026 |
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| 37, Sompting Road592 m away | 58 m² | 90 m² | +32 m² +55% | 2025 |
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| 7, Crabtree Lane745 m away | 80 m² | 112 m² | +32 m² +40% | 2015 |
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| 19, Finches Close427 m away | 77 m² | 108 m² | +31 m² +40% | 2023 |
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| 12, Brook Way377 m away | 78 m² | 109 m² | +31 m² +40% | 2015 |
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| 53, Penhill Road136 m away | 80 m² | 110 m² | +30 m² +38% | 2026 |
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| 4, Freshbrook Road245 m away | 81 m² | 111 m² | +30 m² +37% | 2026 |
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| 139, Brighton Road381 m away | 171 m² | 201 m² | +30 m² +18% | 2025 |
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| 15, The Grovelands222 m away | 95 m² | 125 m² | +30 m² +32% | 2020 |
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| 89, Sompting Road821 m away | 105 m² | 135 m² | +30 m² +29% | 2014 |
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| Downside, Elm Grove338 m away | 108 m² | 137 m² | +29 m² +27% | 2022 |
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| 31, Roberts Road255 m away | 63 m² | 92 m² | +29 m² +46% | 2011 |
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| 92, West Way994 m away | 45 m² | 73 m² | +28 m² +62% | 2025 |
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| 7, Cecil Road199 m away | 93 m² | 121 m² | +28 m² +30% | 2022 |
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| 11, Monks Close409 m away | 82 m² | 110 m² | +28 m² +34% | 2015 |
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| 104, Crabtree Lane885 m away | 80 m² | 107 m² | +27 m² +34% | 2022 |
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| 3, Elms Drive888 m away | 69 m² | 96 m² | +27 m² +39% | 2015 |
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| 23, Annweir Avenue767 m away | 78 m² | 104 m² | +26 m² +33% | 2025 |
|---|
| 39, Lancing Park978 m away | 120 m² | 146 m² | +26 m² +22% | 2025 |
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| 6, Ingleside Crescent0 m away | 81 m² | 107 m² | +26 m² +32% | 2017 |
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| 28, West Lane915 m away | 52 m² | 77 m² | +25 m² +48% | 2023 |
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| Meadow Sweet, Old Salts Farm Road593 m away | 139 m² | 164 m² | +25 m² +18% | 2017 |
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| 7, Old Salts Farm Road531 m away | 127 m² | 151 m² | +24 m² +19% | 2025 |
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| 12, Kings Road419 m away | 122 m² | 146 m² | +24 m² +20% | 2023 |
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| 45, Kings Road370 m away | 109 m² | 133 m² | +24 m² +22% | 2019 |
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| 9, Crabtree Lane745 m away | 57 m² | 81 m² | +24 m² +42% | 2015 |
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| 49, Grinstead Lane930 m away | 99 m² | 122 m² | +23 m² +23% | 2024 |
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| 52, Cecil Road333 m away | 96 m² | 119 m² | +23 m² +24% | 2021 |
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| 15, South Street237 m away | 95 m² | 117 m² | +22 m² +23% | 2023 |
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| 24, Brook Way377 m away | 84 m² | 106 m² | +22 m² +26% | 2023 |
|---|
| 10, Belvedere Avenue972 m away | 76 m² | 98 m² | +22 m² +29% | 2023 |
|---|
| 7, Freshfields Close839 m away | 92 m² | 114 m² | +22 m² +24% | 2022 |
|---|
| 124, Freshbrook Road414 m away | 53 m² | 75 m² | +22 m² +42% | 2021 |
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| Flat 7, Victoria Court, 142 - 152, South Street431 m away | 45 m² | 67 m² | +22 m² +49% | 2019 |
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| 23, Fourth Avenue988 m away | 80 m² | 102 m² | +22 m² +28% | 2019 |
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| 181, Brighton Road458 m away | 115 m² | 136 m² | +21 m² +18% | 2026 |
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| 5, Myrtle Crescent907 m away | 83 m² | 104 m² | +21 m² +25% | 2025 |
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| 2, Barfield Park671 m away | 58 m² | 79 m² | +21 m² +36% | 2022 |
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| Flat 22, Ariel Court, Brighton Road882 m away | 54 m² | 75 m² | +21 m² +39% | 2019 |
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| 35, Kings Close264 m away | 62 m² | 83 m² | +21 m² +34% | 2015 |
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| 30, Crabtree Lane782 m away | 70 m² | 91 m² | +21 m² +30% | 2013 |
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| Flat 9, Victoria Court, 142 - 152, South Street431 m away | 58 m² | 78 m² | +20 m² +34% | 2022 |
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| 14, The Drive554 m away | 73 m² | 93 m² | +20 m² +27% | 2021 |
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| 9, Tower Road623 m away | 82 m² | 102 m² | +20 m² +24% | 2015 |
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| 67, Brighton Road664 m away | 100 m² | 120 m² | +20 m² +20% | 2010 |
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| 21, Brierley Gardens753 m away | 75 m² | 94 m² | +19 m² +25% | 2026 |
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| 24, Wembley Avenue816 m away | 89 m² | 108 m² | +19 m² +21% | 2026 |
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| 6, Barfield Park671 m away | 69 m² | 88 m² | +19 m² +28% | 2022 |
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| 15, Penhill Mews, 65, Penhill Road136 m away | 51 m² | 70 m² | +19 m² +37% | 2017 |
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| 70, Penhill Road200 m away | 88 m² | 107 m² | +19 m² +22% | 2016 |
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| 62, Monks Close398 m away | 77 m² | 96 m² | +19 m² +25% | 2015 |
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| 25, Abbots Way569 m away | 96 m² | 115 m² | +19 m² +20% | 2015 |
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| 8, Freshbrook Road245 m away | 106 m² | 125 m² | +19 m² +18% | 2013 |
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| 3, Roberts Road255 m away | 69 m² | 88 m² | +19 m² +28% | 2013 |
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| 6, Alexandra Road480 m away | 97 m² | 115 m² | +18 m² +19% | 2025 |
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| 9, Mash Barn Lane786 m away | 107 m² | 125 m² | +18 m² +17% | 2024 |
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| 37, South Street148 m away | 38 m² | 56 m² | +18 m² +47% | 2020 |
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| 12 Sunbeam, 164, South Street490 m away | 103 m² | 121 m² | +18 m² +17% | 2018 |
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| 33, Culver Road505 m away | 73 m² | 90 m² | +17 m² +23% | 2025 |
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| 130, Kings Road75 m away | 73 m² | 90 m² | +17 m² +23% | 2020 |
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| 26, Third Avenue901 m away | 77 m² | 94 m² | +17 m² +22% | 2020 |
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| 2, Vincent Close984 m away | 56 m² | 73 m² | +17 m² +30% | 2019 |
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| 85, Crabtree Lane943 m away | 91 m² | 107 m² | +16 m² +18% | 2021 |
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| 134, Kings Road75 m away | 79 m² | 95 m² | +16 m² +20% | 2020 |
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| 32, Leconfield Road981 m away | 85 m² | 101 m² | +16 m² +19% | 2015 |
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| 31, Barfield Park809 m away | 75 m² | 91 m² | +16 m² +21% | 2013 |
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| 33, Sompting Road592 m away | 67 m² | 82 m² | +15 m² +22% | 2026 |
|---|
| 8, Cedar Close617 m away | 57 m² | 72 m² | +15 m² +26% | 2023 |
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| 3, Freshbrook Road340 m away | 67 m² | 82 m² | +15 m² +22% | 2021 |
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