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 RH12 1RR
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 |
|---|---|---|---|---|
| Abbots Lee, Farthings Hill953 m away | 224 m² | 526 m² | +302 m² +135% | 2011 |
| Little Thrift, Farthings Hill953 m away | 163 m² | 312 m² | +149 m² +91% | 2011 |
| 37, Worthing Road568 m away | 194 m² | 337 m² | +143 m² +74% | 2022 |
| Arun Lodge, Denne Road840 m away | 381 m² | 513 m² | +132 m² +35% | 2018 |
| 82, Irwin Drive559 m away | 106 m² | 207 m² | +101 m² +95% | 2022 |
| 59, Hill Mead585 m away | 81 m² | 177 m² | +96 m² +119% | 2022 |
| 52, Worthing Road395 m away | 86 m² | 168 m² | +82 m² +95% | 2018 |
| 62, Worthing Road568 m away | 114 m² | 195 m² | +81 m² +71% | 2022 |
| 6a, Springfield Crescent574 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 |
| 152 m² |
| +80 m² +111% |
| 2017 |
| 37, Guildford Road462 m away | 136 m² | 209 m² | +73 m² +54% | 2024 |
|---|
| 38, Vale Drive582 m away | 55 m² | 126 m² | +71 m² +129% | 2020 |
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| 6, Tower Close897 m away | 72 m² | 143 m² | +71 m² +99% | 2012 |
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| 115, Cootes Avenue918 m away | 59 m² | 125 m² | +66 m² +112% | 2016 |
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| Willow Cottage, 21a, Cedar Close758 m away | 107 m² | 170 m² | +63 m² +59% | 2018 |
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| 82, Guildford Road418 m away | 182 m² | 244 m² | +62 m² +34% | 2022 |
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| 42, Hillside397 m away | 80 m² | 142 m² | +62 m² +78% | 2016 |
|---|
| 17, Blackbridge Lane135 m away | 71 m² | 132 m² | +61 m² +86% | 2013 |
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| 76, Worthing Road568 m away | 170 m² | 230 m² | +60 m² +35% | 2025 |
|---|
| 2, Oliver Road524 m away | 167 m² | 222 m² | +55 m² +33% | 2020 |
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| 36, Greenway740 m away | 106 m² | 158 m² | +52 m² +49% | 2026 |
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| 10, Curzon Avenue449 m away | 97 m² | 148 m² | +51 m² +53% | 2026 |
|---|
| 20, Irwin Drive581 m away | 122 m² | 172 m² | +50 m² +41% | 2021 |
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| 21, Springfield Park Road614 m away | 113 m² | 163 m² | +50 m² +44% | 2019 |
|---|
| 20, Spencers Road929 m away | 71 m² | 121 m² | +50 m² +70% | 2018 |
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| The Corner House, Farthings Walk996 m away | 274 m² | 323 m² | +49 m² +18% | 2025 |
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| Flat 4, Tanbridge House, Tanbridge Park254 m away | 122 m² | 171 m² | +49 m² +40% | 2018 |
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| 104, Cootes Avenue881 m away | 74 m² | 122 m² | +48 m² +65% | 2022 |
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| 5, West Street633 m away | 45 m² | 92 m² | +47 m² +104% | 2014 |
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| 14, Oliver Road524 m away | 78 m² | 124 m² | +46 m² +59% | 2014 |
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| 10, Springfield Park, North Parade974 m away | 104 m² | 148 m² | +44 m² +42% | 2022 |
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| 4, Hills Farm Lane368 m away | 178 m² | 220 m² | +42 m² +24% | 2022 |
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| 38, Curzon Avenue449 m away | 51 m² | 93 m² | +42 m² +82% | 2018 |
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| 16, Guildford Road366 m away | 94 m² | 135 m² | +41 m² +44% | 2022 |
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| 10, Irwin Drive581 m away | 115 m² | 156 m² | +41 m² +36% | 2020 |
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| 24, Spencers Road929 m away | 95 m² | 133 m² | +38 m² +40% | 2022 |
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| 56, Homestream House, Mill Bay Lane470 m away | 37 m² | 75 m² | +38 m² +103% | 2018 |
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| 37, Croft Way835 m away | 71 m² | 108 m² | +37 m² +52% | 2024 |
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| 5, Fellcott Way737 m away | 74 m² | 111 m² | +37 m² +50% | 2022 |
|---|
| 21, Croft Way835 m away | 92 m² | 129 m² | +37 m² +40% | 2016 |
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| 41, Kings Gate547 m away | 111 m² | 147 m² | +36 m² +32% | 2023 |
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| 43, Curzon Avenue509 m away | 78 m² | 114 m² | +36 m² +46% | 2022 |
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| 2, Press House, 16, Market Square826 m away | 60 m² | 96 m² | +36 m² +60% | 2015 |
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| 50, Merryfield Drive682 m away | 106 m² | 140 m² | +34 m² +32% | 2026 |
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| 27, Farm Avenue629 m away | 93 m² | 127 m² | +34 m² +37% | 2017 |
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| 6, Riverside200 m away | 93 m² | 126 m² | +33 m² +35% | 2022 |
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| 63, Curzon Avenue509 m away | 64 m² | 97 m² | +33 m² +52% | 2019 |
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| 70, Merryfield Drive927 m away | 78 m² | 110 m² | +32 m² +41% | 2023 |
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| 52, Hazelhurst Crescent684 m away | 83 m² | 115 m² | +32 m² +39% | 2022 |
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| 2, Irwin Drive581 m away | 99 m² | 131 m² | +32 m² +32% | 2016 |
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| 119, Rushams Road574 m away | 101 m² | 132 m² | +31 m² +31% | 2025 |
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| 14, Greenway740 m away | 62 m² | 93 m² | +31 m² +50% | 2021 |
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| 11a, Springfield Park Road614 m away | 105 m² | 136 m² | +31 m² +30% | 2019 |
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| 44, Rushams Road572 m away | 91 m² | 122 m² | +31 m² +34% | 2016 |
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| 24, Denne Road840 m away | 127 m² | 158 m² | +31 m² +24% | 2013 |
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| Harting, 118, Blackbridge Lane379 m away | 73 m² | 103 m² | +30 m² +41% | 2026 |
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| 58, Worthing Road568 m away | 117 m² | 147 m² | +30 m² +26% | 2019 |
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| 13, The Boulevard990 m away | 73 m² | 103 m² | +30 m² +41% | 2014 |
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| 18, Madeira Avenue984 m away | 76 m² | 106 m² | +30 m² +39% | 2013 |
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| Chailey, Farthings Hill953 m away | 185 m² | 214 m² | +29 m² +16% | 2019 |
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| 16, Cedar Close758 m away | 165 m² | 194 m² | +29 m² +18% | 2013 |
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| 115, Rushams Road574 m away | 101 m² | 129 m² | +28 m² +28% | 2026 |
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| 17, Madeira Avenue984 m away | 108 m² | 136 m² | +28 m² +26% | 2024 |
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| 73, Cootes Avenue644 m away | 92 m² | 120 m² | +28 m² +30% | 2021 |
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| 37, Vale Drive580 m away | 72 m² | 100 m² | +28 m² +39% | 2014 |
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| 1, Middleton Road178 m away | 108 m² | 135 m² | +27 m² +25% | 2023 |
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| 50, Spencers Road929 m away | 115 m² | 142 m² | +27 m² +23% | 2021 |
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| 29, Hills Place303 m away | 62 m² | 89 m² | +27 m² +44% | 2013 |
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| 3, Farm Avenue629 m away | 64 m² | 90 m² | +26 m² +41% | 2025 |
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| Flat 23, Homestream House, Mill Bay Lane470 m away | 60 m² | 86 m² | +26 m² +43% | 2017 |
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| 80, Hazelhurst Crescent684 m away | 67 m² | 93 m² | +26 m² +39% | 2017 |
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| 53, Hill Mead585 m away | 91 m² | 117 m² | +26 m² +29% | 2016 |
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| 143, Tanbridge Park191 m away | 102 m² | 127 m² | +25 m² +25% | 2018 |
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| 13, Madeira Avenue984 m away | 79 m² | 104 m² | +25 m² +32% | 2014 |
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| 111, Cootes Avenue918 m away | 58 m² | 82 m² | +24 m² +41% | 2026 |
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| 23, Spencers Road882 m away | 81 m² | 105 m² | +24 m² +30% | 2023 |
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| 5, Shelley Road946 m away | 80 m² | 104 m² | +24 m² +30% | 2016 |
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| 8, Jockey Mead493 m away | 65 m² | 88 m² | +23 m² +35% | 2025 |
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| 7, Glynde Place800 m away | 39 m² | 62 m² | +23 m² +59% | 2025 |
|---|
| 65, Deer Way491 m away | 88 m² | 111 m² | +23 m² +26% | 2023 |
|---|
| 16, Pines Ridge849 m away | 101 m² | 123 m² | +22 m² +22% | 2024 |
|---|
| 1, Curzon Avenue509 m away | 80 m² | 101 m² | +21 m² +26% | 2025 |
|---|
| 69, Blackbridge Lane290 m away | 85 m² | 106 m² | +21 m² +25% | 2024 |
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| 9, Bishopric Court438 m away | 27 m² | 47 m² | +20 m² +74% | 2025 |
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| 9, Percy Road854 m away | 58 m² | 78 m² | +20 m² +34% | 2025 |
|---|
| 5, Deer Way491 m away | 55 m² | 75 m² | +20 m² +36% | 2023 |
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| 11, Churchill Avenue837 m away | 90 m² | 110 m² | +20 m² +22% | 2023 |
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| 21, Bishopric Court438 m away | 35 m² | 55 m² | +20 m² +57% | 2022 |
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| 26, Rushams Road920 m away | 118 m² | 138 m² | +20 m² +17% | 2020 |
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| 9, River Mead312 m away | 70 m² | 90 m² | +20 m² +29% | 2018 |
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| 18, Curzon Avenue449 m away | 125 m² | 144 m² | +19 m² +15% | 2025 |
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| Flat 2, Tanbridge House, Tanbridge Park254 m away | 120 m² | 139 m² | +19 m² +16% | 2022 |
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| 15, Ryecroft Drive736 m away | 90 m² | 109 m² | +19 m² +21% | 2020 |
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| 23, The Crescent278 m away | 86 m² | 105 m² | +19 m² +22% | 2016 |
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| 13, Spencers Road882 m away | 68 m² | 87 m² | +19 m² +28% | 2014 |
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| 1, Percy Road854 m away | 76 m² | 94 m² | +18 m² +24% | 2024 |
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| 3, Press House, 16, Market Square826 m away | 93 m² | 111 m² | +18 m² +19% | 2015 |
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| 118, Cootes Avenue881 m away | 91 m² | 109 m² | +18 m² +20% | 2015 |
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| Flat 8, Talbot House, 20 - 22, East Street896 m away | 110 m² | 127 m² | +17 m² +15% | 2024 |
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| 85, Rushams Road574 m away | 78 m² | 95 m² | +17 m² +22% | 2023 |
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| 4, Hazelhurst Crescent684 m away | 36 m² | 53 m² | +17 m² +47% | 2023 |
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| 36, Vale Drive582 m away | 88 m² | 105 m² | +17 m² +19% | 2010 |
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| 15, Wakehurst Mews536 m away | 64 m² | 80 m² | +16 m² +25% | 2026 |
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| Flat 6, Bishops Court 27a, Causeway712 m away | 72 m² | 88 m² | +16 m² +22% | 2024 |
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| 17, Percy Road854 m away | 73 m² | 89 m² | +16 m² +22% | 2024 |
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| 6, Shelley Road946 m away | 68 m² | 84 m² | +16 m² +24% | 2022 |
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| 10, Three Acres274 m away | 83 m² | 98 m² | +15 m² +18% | 2025 |
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| 6, Spencers Road929 m away | 64 m² | 79 m² | +15 m² +23% | 2022 |
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| 61, Kings Gate547 m away | 50 m² | 65 m² | +15 m² +30% | 2020 |
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| 19, Eastcroft Mews766 m away | 66 m² | 81 m² | +15 m² +23% | 2016 |
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| 18, Stoneybrook693 m away | 68 m² | 83 m² | +15 m² +22% | 2015 |
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