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 RG9 4HL
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 |
|---|---|---|---|---|
| High Leas, Rotherfield Road610 m away | 457 m² | 976 m² | +519 m² +114% | 2024 |
| Upper Bolney House, Upper Bolney Road965 m away | 656 m² | 1,047 m² | +391 m² +60% | 2014 |
| Harpsden Wood House, Harpsden Woods624 m away | 487 m² | 792 m² | +305 m² +63% | 2019 |
| 22, Rotherfield Road615 m away | 249 m² | 422 m² | +173 m² +69% | 2025 |
| Manor End, Peppard Lane487 m away | 142 m² | 309 m² | +167 m² +118% | 2024 |
| 23, Makins Road900 m away | 113 m² | 276 m² | +163 m² +144% | 2021 |
| 28, Western Road829 m away | 145 m² | 307 m² | +162 m² +112% | 2026 |
| Old Paddock, Gillotts Lane924 m away | 139 m² | 295 m² | +156 m² +112% | 2017 |
| Ash Farm, Upper Bolney Road |
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.
| 297 m² |
| 449 m² |
| +152 m² +51% |
| 2020 |
| 52, Makins Road777 m away | 119 m² | 254 m² | +135 m² +113% | 2024 |
|---|
| 1, Cromwell Close897 m away | 94 m² | 227 m² | +133 m² +141% | 2026 |
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| Woodhill, Harpsden Woods624 m away | 418 m² | 549 m² | +131 m² +31% | 2026 |
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| 56, Makins Road777 m away | 132 m² | 263 m² | +131 m² +99% | 2025 |
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| Grovelands, St Andrews Road698 m away | 133 m² | 262 m² | +129 m² +97% | 2014 |
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| Incline Cottage, Gillotts Lane358 m away | 203 m² | 324 m² | +121 m² +60% | 2021 |
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| 82, St Andrews Road842 m away | 160 m² | 279 m² | +119 m² +74% | 2016 |
|---|
| Hillcrest, Peppard Lane502 m away | 113 m² | 222 m² | +109 m² +96% | 2025 |
|---|
| 73, Blandy Road569 m away | 128 m² | 226 m² | +98 m² +77% | 2021 |
|---|
| 15, Makins Road900 m away | 126 m² | 221 m² | +95 m² +75% | 2018 |
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| 45, Berkshire Road580 m away | 159 m² | 249 m² | +90 m² +57% | 2019 |
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| 48, Berkshire Road712 m away | 91 m² | 180 m² | +89 m² +98% | 2024 |
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| 46, Cromwell Road812 m away | 141 m² | 229 m² | +88 m² +62% | 2025 |
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| 28, Coldharbour Close759 m away | 163 m² | 243 m² | +80 m² +49% | 2020 |
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| 22, Belle Vue Road737 m away | 107 m² | 185 m² | +78 m² +73% | 2020 |
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| 34, Western Road829 m away | 157 m² | 233 m² | +76 m² +48% | 2021 |
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| 27, Belle Vue Road761 m away | 94 m² | 166 m² | +72 m² +77% | 2020 |
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| 54, Berkshire Road580 m away | 145 m² | 213 m² | +68 m² +47% | 2019 |
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| 4, Wootton Road841 m away | 161 m² | 226 m² | +65 m² +40% | 2024 |
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| 15, Cromwell Road812 m away | 98 m² | 157 m² | +59 m² +60% | 2011 |
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| Landfall, St Andrews Road749 m away | 257 m² | 313 m² | +56 m² +22% | 2016 |
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| 46, Rotherfield Road615 m away | 239 m² | 293 m² | +54 m² +23% | 2022 |
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| 39, Berkshire Road580 m away | 124 m² | 177 m² | +53 m² +43% | 2013 |
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| 45, St Andrews Road966 m away | 151 m² | 201 m² | +50 m² +33% | 2020 |
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| 209, Greys Road976 m away | 42 m² | 92 m² | +50 m² +119% | 2017 |
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| 12, Coldharbour Close759 m away | 116 m² | 165 m² | +49 m² +42% | 2021 |
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| 31, Belle Vue Road761 m away | 157 m² | 205 m² | +48 m² +31% | 2023 |
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| 40, Makins Road953 m away | 134 m² | 180 m² | +46 m² +34% | 2023 |
|---|
| 7, Gillotts Close864 m away | 97 m² | 140 m² | +43 m² +44% | 2022 |
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| 71, St Andrews Road698 m away | 177 m² | 219 m² | +42 m² +24% | 2022 |
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| 6, Western Road931 m away | 183 m² | 225 m² | +42 m² +23% | 2016 |
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| 1, Gillotts Close864 m away | 87 m² | 123 m² | +36 m² +41% | 2026 |
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| Highlands, St Andrews Road698 m away | 223 m² | 259 m² | +36 m² +16% | 2014 |
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| 87, St Andrews Road667 m away | 158 m² | 192 m² | +34 m² +22% | 2021 |
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| 22, Western Road931 m away | 134 m² | 167 m² | +33 m² +25% | 2023 |
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| 55, St Andrews Road846 m away | 193 m² | 226 m² | +33 m² +17% | 2019 |
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| 16, Berkshire Road712 m away | 144 m² | 176 m² | +32 m² +22% | 2023 |
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| 33, Makins Road766 m away | 123 m² | 155 m² | +32 m² +26% | 2022 |
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| 20, Manor Road567 m away | 89 m² | 118 m² | +29 m² +33% | 2023 |
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| 39, St Andrews Road966 m away | 142 m² | 169 m² | +27 m² +19% | 2026 |
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| 28, Makins Road953 m away | 87 m² | 114 m² | +27 m² +31% | 2025 |
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| 25, Western Avenue979 m away | 95 m² | 122 m² | +27 m² +28% | 2022 |
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| Mia, Western Avenue979 m away | 96 m² | 122 m² | +26 m² +27% | 2015 |
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| 231, Greys Road852 m away | 159 m² | 184 m² | +25 m² +16% | 2020 |
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| 80, Makins Road777 m away | 98 m² | 123 m² | +25 m² +26% | 2013 |
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| 25, Belle Vue Road761 m away | 116 m² | 139 m² | +23 m² +20% | 2025 |
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| 3, Cromwell Close897 m away | 113 m² | 136 m² | +23 m² +20% | 2025 |
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| 20, Western Avenue979 m away | 81 m² | 102 m² | +21 m² +26% | 2020 |
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| 5, Sherwood Gardens951 m away | 57 m² | 78 m² | +21 m² +37% | 2014 |
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| 7, Gillotts Hill288 m away | 112 m² | 132 m² | +20 m² +18% | 2026 |
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| 78, Makins Road777 m away | 101 m² | 120 m² | +19 m² +19% | 2025 |
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| Devoncot0 m away | 82 m² | 101 m² | +19 m² +23% | 2011 |
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| 13, Manor Road677 m away | 93 m² | 111 m² | +18 m² +19% | 2018 |
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| 8, Gillotts Hill288 m away | 93 m² | 111 m² | +18 m² +19% | 2014 |
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| 34, Makins Road953 m away | 99 m² | 114 m² | +15 m² +15% | 2025 |
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| 100, Greys Road895 m away | 88 m² | 103 m² | +15 m² +17% | 2019 |
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