Finding extended homes…
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Sign in to keep them on every device →Finding extended homes…
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 RM11 2HX
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 |
|---|---|---|---|---|
| 5, Elm Grove771 m away | 316 m² | 730 m² | +414 m² +131% | 2013 |
| 15, Freeman Way958 m away | 321 m² | 657 m² | +336 m² +105% | 2024 |
| 7, Woodlands Avenue453 m away | 248 m² | 555 m² | +307 m² +124% | 2015 |
| 21, Parkstone Avenue842 m away | 283 m² | 526 m² | +243 m² +86% | 2017 |
| 4, Porchester Close645 m away | 187 m² | 401 m² | +214 m² +114% | 2014 |
| 4, Nelmes Road844 m away | 162 m² | 372 m² | +210 m² +130% | 2014 |
| 8, Ernest Road921 m away | 218 m² | 422 m² | +204 m² +94% | 2016 |
| 3, Russetts605 m away | 151 m² | 326 m² | +175 m² +116% | 2021 |
| 12, Rockchase Gardens766 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.
| 378 m² |
| +170 m² +82% |
| 2020 |
| 14, Elm Grove771 m away | 305 m² | 474 m² | +169 m² +55% | 2025 |
|---|
| 15, Nelmes Way599 m away | 113 m² | 281 m² | +168 m² +149% | 2017 |
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| 41, Nelmes Way668 m away | 201 m² | 362 m² | +161 m² +80% | 2025 |
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| 18, Nelmes Crescent809 m away | 105 m² | 261 m² | +156 m² +149% | 2023 |
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| 16, Berther Road994 m away | 146 m² | 292 m² | +146 m² +100% | 2026 |
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| 9, Ayloffs Walk406 m away | 143 m² | 285 m² | +142 m² +99% | 2020 |
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| 16, Ernest Road921 m away | 458 m² | 587 m² | +129 m² +28% | 2023 |
|---|
| 60, Brookside550 m away | 115 m² | 243 m² | +128 m² +111% | 2016 |
|---|
| 8, Brookside322 m away | 112 m² | 231 m² | +119 m² +106% | 2022 |
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| 12, Freeman Way958 m away | 206 m² | 323 m² | +117 m² +57% | 2023 |
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| 2a, Burntwood Avenue658 m away | 160 m² | 276 m² | +116 m² +73% | 2015 |
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| 1, Banyards611 m away | 142 m² | 256 m² | +114 m² +80% | 2023 |
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| 23, Elm Grove684 m away | 526 m² | 638 m² | +112 m² +21% | 2026 |
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| 10, Eyre Close945 m away | 96 m² | 207 m² | +111 m² +116% | 2026 |
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| 25, Warrington Gardens559 m away | 87 m² | 194 m² | +107 m² +123% | 2024 |
|---|
| 15, Haynes Road422 m away | 85 m² | 191 m² | +106 m² +125% | 2019 |
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| 5, Mendoza Close557 m away | 209 m² | 314 m² | +105 m² +50% | 2022 |
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| 59, Ardleigh Green Road122 m away | 124 m² | 227 m² | +103 m² +83% | 2017 |
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| 22, Burntwood Avenue658 m away | 259 m² | 359 m² | +100 m² +39% | 2025 |
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| 8, Walden Road733 m away | 153 m² | 251 m² | +98 m² +64% | 2025 |
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| 65, Hillview Avenue835 m away | 65 m² | 162 m² | +97 m² +149% | 2017 |
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| 475, Upper Brentwood Road797 m away | 85 m² | 180 m² | +95 m² +112% | 2022 |
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| 421, Brentwood Road672 m away | 147 m² | 236 m² | +89 m² +61% | 2023 |
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| 55, Kinfauns Avenue719 m away | 72 m² | 159 m² | +87 m² +121% | 2014 |
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| 37, Primrose Glen908 m away | 62 m² | 148 m² | +86 m² +139% | 2026 |
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| 15, The Sheilings968 m away | 114 m² | 198 m² | +84 m² +74% | 2023 |
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| 12, Nelmes Road844 m away | 184 m² | 265 m² | +81 m² +44% | 2025 |
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| 3, Westmoreland Avenue505 m away | 112 m² | 192 m² | +80 m² +71% | 2025 |
|---|
| 14a, Oak Glen928 m away | 76 m² | 156 m² | +80 m² +105% | 2023 |
|---|
| 7, Berther Road935 m away | 106 m² | 186 m² | +80 m² +75% | 2020 |
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| 29, Nelmes Crescent798 m away | 146 m² | 225 m² | +79 m² +54% | 2023 |
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| 103, Heath Park Road877 m away | 219 m² | 298 m² | +79 m² +36% | 2023 |
|---|
| 18, Balmoral Road971 m away | 117 m² | 195 m² | +78 m² +67% | 2025 |
|---|
| 4, Woodcutters Close517 m away | 145 m² | 222 m² | +77 m² +53% | 2020 |
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| 18, Compton Avenue976 m away | 87 m² | 163 m² | +76 m² +87% | 2025 |
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| 7, Nelmes Road844 m away | 258 m² | 333 m² | +75 m² +29% | 2018 |
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| 147, Haynes Road0 m away | 134 m² | 208 m² | +74 m² +55% | 2021 |
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| 163, Haynes Road0 m away | 79 m² | 153 m² | +74 m² +94% | 2017 |
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| 83, Haynes Road422 m away | 93 m² | 165 m² | +72 m² +77% | 2024 |
|---|
| 274, Osborne Road966 m away | 108 m² | 180 m² | +72 m² +67% | 2024 |
|---|
| 21, Woodlands Avenue453 m away | 251 m² | 321 m² | +70 m² +28% | 2023 |
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| 24, Hazel Rise584 m away | 96 m² | 165 m² | +69 m² +72% | 2020 |
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| 6, Burntwood Avenue658 m away | 323 m² | 390 m² | +67 m² +21% | 2014 |
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| 8, The Woodfines664 m away | 199 m² | 264 m² | +65 m² +33% | 2016 |
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| 100, Cranham Road810 m away | 65 m² | 130 m² | +65 m² +100% | 2016 |
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| 80, Stafford Avenue887 m away | 44 m² | 108 m² | +64 m² +145% | 2024 |
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| 9, Russetts605 m away | 166 m² | 230 m² | +64 m² +39% | 2020 |
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| 106, Squirrels Heath Lane584 m away | 104 m² | 168 m² | +64 m² +62% | 2014 |
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| 2, Warrington Gardens473 m away | 73 m² | 135 m² | +62 m² +85% | 2026 |
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| 19a, Ernest Road907 m away | 155 m² | 217 m² | +62 m² +40% | 2023 |
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| 40, Percival Road723 m away | 45 m² | 106 m² | +61 m² +136% | 2023 |
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| 94, Northumberland Avenue319 m away | 61 m² | 122 m² | +61 m² +100% | 2021 |
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| 24, Primrose Glen902 m away | 67 m² | 128 m² | +61 m² +91% | 2014 |
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| 12, Slewins Lane544 m away | 77 m² | 137 m² | +60 m² +78% | 2014 |
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| 28, Wykeham Avenue605 m away | 102 m² | 161 m² | +59 m² +58% | 2023 |
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| 33, Wakerfield Close918 m away | 165 m² | 224 m² | +59 m² +36% | 2020 |
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| 38, Nelmes Crescent809 m away | 152 m² | 211 m² | +59 m² +39% | 2016 |
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| 70, Primrose Glen902 m away | 66 m² | 122 m² | +56 m² +85% | 2026 |
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| 102, Osborne Road943 m away | 84 m² | 140 m² | +56 m² +67% | 2021 |
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| 88, Squirrels Heath Lane584 m away | 87 m² | 142 m² | +55 m² +63% | 2025 |
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| 114, Squirrels Heath Lane671 m away | 143 m² | 198 m² | +55 m² +38% | 2023 |
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| 34, Great Gardens Road848 m away | 66 m² | 121 m² | +55 m² +83% | 2017 |
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| 114, Hillview Avenue768 m away | 53 m² | 107 m² | +54 m² +102% | 2026 |
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| 54, Brooklands Gardens537 m away | 72 m² | 125 m² | +53 m² +74% | 2025 |
|---|
| 100, Hillview Avenue773 m away | 135 m² | 188 m² | +53 m² +39% | 2022 |
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| 51, Stafford Avenue959 m away | 88 m² | 141 m² | +53 m² +60% | 2020 |
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| 5, Lytton Road927 m away | 85 m² | 138 m² | +53 m² +62% | 2019 |
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| 4, Ernest Road921 m away | 250 m² | 302 m² | +52 m² +21% | 2016 |
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| 12, Ashlyn Grove783 m away | 76 m² | 127 m² | +51 m² +67% | 2020 |
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| 17, Rowan Walk324 m away | 126 m² | 177 m² | +51 m² +40% | 2019 |
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| 191, Northumberland Avenue491 m away | 122 m² | 172 m² | +50 m² +41% | 2026 |
|---|
| 17, Eugene Close600 m away | 82 m² | 132 m² | +50 m² +61% | 2025 |
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| 38, Hillview Avenue806 m away | 91 m² | 141 m² | +50 m² +55% | 2024 |
|---|
| 19, Hillview Avenue835 m away | 107 m² | 157 m² | +50 m² +47% | 2021 |
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| 111a, Hillview Avenue773 m away | 126 m² | 175 m² | +49 m² +39% | 2026 |
|---|
| 73, Slewins Lane490 m away | 153 m² | 202 m² | +49 m² +32% | 2025 |
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| 7, Hardley Crescent520 m away | 118 m² | 167 m² | +49 m² +42% | 2025 |
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| 16, Nelmes Crescent809 m away | 118 m² | 165 m² | +47 m² +40% | 2022 |
|---|
| Flat 8, Waterwell Court, 3a, Manor Avenue561 m away | 52 m² | 98 m² | +46 m² +88% | 2026 |
|---|
| 23, Macdonald Avenue944 m away | 64 m² | 110 m² | +46 m² +72% | 2023 |
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| 185, Northumberland Avenue491 m away | 83 m² | 129 m² | +46 m² +55% | 2014 |
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| 21, Lytton Road927 m away | 133 m² | 178 m² | +45 m² +34% | 2024 |
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| 252, Osborne Road966 m away | 81 m² | 126 m² | +45 m² +56% | 2024 |
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| 69, Birch Crescent774 m away | 81 m² | 126 m² | +45 m² +56% | 2020 |
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| 46, Percival Road723 m away | 46 m² | 91 m² | +45 m² +98% | 2019 |
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| 6, Nelmes Close947 m away | 199 m² | 243 m² | +44 m² +22% | 2025 |
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| 7, Slewins Lane544 m away | 158 m² | 202 m² | +44 m² +28% | 2020 |
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| 119, Northumberland Avenue350 m away | 60 m² | 104 m² | +44 m² +73% | 2019 |
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| 88, Cranham Road810 m away | 90 m² | 133 m² | +43 m² +48% | 2024 |
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| 14, Walden Way508 m away | 207 m² | 249 m² | +42 m² +20% | 2024 |
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| 71, Macdonald Avenue944 m away | 167 m² | 209 m² | +42 m² +25% | 2024 |
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| 53, Hazelmere Gardens598 m away | 127 m² | 169 m² | +42 m² +33% | 2022 |
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| 3, Oak Glen928 m away | 73 m² | 115 m² | +42 m² +58% | 2012 |
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| 8, Maybrick Road805 m away | 115 m² | 156 m² | +41 m² +36% | 2022 |
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| 5a, Nelmes Road844 m away | 235 m² | 276 m² | +41 m² +17% | 2015 |
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| 46, Squirrels Heath Lane602 m away | 112 m² | 152 m² | +40 m² +36% | 2022 |
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| 7, Cranham Road906 m away | 85 m² | 125 m² | +40 m² +47% | 2014 |
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| 1, Margaret Close931 m away | 95 m² | 135 m² | +40 m² +42% | 2014 |
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| 130, Northumberland Avenue492 m away | 61 m² | 101 m² | +40 m² +66% | 2012 |
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| 55, Haynes Road422 m away | 92 m² | 131 m² | +39 m² +42% | 2022 |
|---|
| 3, Rowan Walk324 m away | 165 m² | 204 m² | +39 m² +24% | 2020 |
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| 37, Cecil Avenue888 m away | 91 m² | 130 m² | +39 m² +43% | 2019 |
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| 130, Ardleigh Green Road929 m away | 80 m² | 118 m² | +38 m² +48% | 2025 |
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| 27, Slewins Lane544 m away | 88 m² | 126 m² | +38 m² +43% | 2024 |
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| 62, Great Gardens Road691 m away | 72 m² | 110 m² | +38 m² +53% | 2021 |
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| 13, Warrington Gardens473 m away | 76 m² | 114 m² | +38 m² +50% | 2014 |
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| 62, Cecil Avenue860 m away | 112 m² | 149 m² | +37 m² +33% | 2020 |
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| 9, Brooklands Gardens533 m away | 100 m² | 137 m² | +37 m² +37% | 2016 |
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| 43, Kingsley Gardens529 m away | 92 m² | 128 m² | +36 m² +39% | 2025 |
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| 67, Cranham Road906 m away | 82 m² | 118 m² | +36 m² +44% | 2024 |
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| 222, Balgores Lane824 m away | 124 m² | 160 m² | +36 m² +29% | 2022 |
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| 28, Whitethorn Gardens483 m away | 84 m² | 119 m² | +35 m² +42% | 2026 |
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| 32, Hazel Rise584 m away | 68 m² | 103 m² | +35 m² +51% | 2021 |
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| 34, Brookside322 m away | 93 m² | 127 m² | +34 m² +37% | 2024 |
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| 33, Stafford Avenue959 m away | 59 m² | 93 m² | +34 m² +58% | 2024 |
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| 60, Cranham Road958 m away | 66 m² | 100 m² | +34 m² +52% | 2020 |
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| 26, Oak Glen928 m away | 57 m² | 91 m² | +34 m² +60% | 2011 |
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| 11, Lewis Road674 m away | 85 m² | 118 m² | +33 m² +39% | 2026 |
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| 20, Pinecroft560 m away | 102 m² | 135 m² | +33 m² +32% | 2025 |
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| 25, Oak Glen928 m away | 60 m² | 93 m² | +33 m² +55% | 2025 |
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| 127, Osborne Road943 m away | 82 m² | 115 m² | +33 m² +40% | 2017 |
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| 46, Salisbury Road856 m away | 68 m² | 101 m² | +33 m² +49% | 2016 |
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| 22, Balmoral Road971 m away | 126 m² | 159 m² | +33 m² +26% | 2015 |
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| 465, Upper Brentwood Road797 m away | 87 m² | 120 m² | +33 m² +38% | 2013 |
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| 25a, Percival Road723 m away | 81 m² | 113 m² | +32 m² +40% | 2025 |
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| 25, Platford Green862 m away | 101 m² | 133 m² | +32 m² +32% | 2017 |
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| 12, Eugene Close600 m away | 78 m² | 109 m² | +31 m² +40% | 2025 |
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| 15, The Witherings866 m away | 188 m² | 219 m² | +31 m² +16% | 2025 |
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| 28, Nelmes Crescent809 m away | 116 m² | 147 m² | +31 m² +27% | 2024 |
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| 104, Osborne Road943 m away | 101 m² | 132 m² | +31 m² +31% | 2024 |
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| 32a, Northumberland Avenue302 m away | 113 m² | 144 m² | +31 m² +27% | 2023 |
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| 82, Haynes Road44 m away | 116 m² | 146 m² | +30 m² +26% | 2024 |
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| 36, Haynes Road399 m away | 84 m² | 114 m² | +30 m² +36% | 2023 |
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| 7, Percival Road723 m away | 67 m² | 97 m² | +30 m² +45% | 2023 |
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| 92, Northumberland Avenue319 m away | 101 m² | 131 m² | +30 m² +30% | 2022 |
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| 155, Squirrels Heath Lane703 m away | 101 m² | 131 m² | +30 m² +30% | 2022 |
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| 8, The Sheilings968 m away | 193 m² | 223 m² | +30 m² +16% | 2022 |
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| 26, Wykeham Avenue605 m away | 111 m² | 141 m² | +30 m² +27% | 2019 |
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| 82, Stafford Avenue887 m away | 57 m² | 87 m² | +30 m² +53% | 2019 |
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| 8, Manor Crescent369 m away | 136 m² | 166 m² | +30 m² +22% | 2017 |
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| 120, Hillview Avenue768 m away | 77 m² | 106 m² | +29 m² +38% | 2025 |
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| 452, Upper Brentwood Road928 m away | 165 m² | 194 m² | +29 m² +18% | 2021 |
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| 9, Margaret Road958 m away | 105 m² | 134 m² | +29 m² +28% | 2021 |
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| 5, Fanshawe Crescent579 m away | 146 m² | 175 m² | +29 m² +20% | 2017 |
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| 56, Great Gardens Road691 m away | 98 m² | 127 m² | +29 m² +30% | 2014 |
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| 49, Hazelmere Gardens598 m away | 83 m² | 111 m² | +28 m² +34% | 2021 |
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| 31a, Butts Green Road761 m away | 38 m² | 66 m² | +28 m² +74% | 2013 |
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| 234, Osborne Road966 m away | 99 m² | 126 m² | +27 m² +27% | 2024 |
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| 1, Ardleigh Green Road317 m away | 105 m² | 132 m² | +27 m² +26% | 2018 |
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| 8, Whitethorn Gardens483 m away | 87 m² | 114 m² | +27 m² +31% | 2017 |
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| 6, Slewins Lane544 m away | 51 m² | 78 m² | +27 m² +53% | 2017 |
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| 44, Cranham Road958 m away | 98 m² | 125 m² | +27 m² +28% | 2012 |
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| 50, Hillview Avenue806 m away | 84 m² | 111 m² | +27 m² +32% | 2011 |
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| 371, Brentwood Road722 m away | 87 m² | 114 m² | +27 m² +31% | 2010 |
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| 22, Primrose Glen902 m away | 65 m² | 91 m² | +26 m² +40% | 2024 |
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| 18, Hardley Crescent520 m away | 111 m² | 137 m² | +26 m² +23% | 2023 |
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| 109a, Hillview Avenue773 m away | 88 m² | 114 m² | +26 m² +30% | 2022 |
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| 15, Stafford Avenue959 m away | 75 m² | 101 m² | +26 m² +35% | 2022 |
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| 41, Cavenham Gardens620 m away | 77 m² | 103 m² | +26 m² +34% | 2021 |
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| 76, Hillview Avenue806 m away | 68 m² | 94 m² | +26 m² +38% | 2016 |
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| 147, Squirrels Heath Lane671 m away | 101 m² | 127 m² | +26 m² +26% | 2012 |
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| 96, Cecil Avenue860 m away | 87 m² | 113 m² | +26 m² +30% | 2010 |
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| 16, Eugene Close600 m away | 92 m² | 117 m² | +25 m² +27% | 2023 |
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| 141, Squirrels Heath Lane671 m away | 104 m² | 129 m² | +25 m² +24% | 2022 |
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| 23a, Butts Green Road761 m away | 40 m² | 64 m² | +24 m² +60% | 2025 |
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| Flat 55, Nyall Court, Kidman Close771 m away | 44 m² | 68 m² | +24 m² +55% | 2024 |
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| 181, Osborne Road893 m away | 90 m² | 114 m² | +24 m² +27% | 2024 |
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| 102, Northumberland Avenue319 m away | 67 m² | 91 m² | +24 m² +36% | 2023 |
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| 52, Haynes Road399 m away | 89 m² | 113 m² | +24 m² +27% | 2023 |
|---|
| 4, Manor Crescent369 m away | 152 m² | 176 m² | +24 m² +16% | 2022 |
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| Flat 64, Nyall Court, Kidman Close771 m away | 36 m² | 60 m² | +24 m² +67% | 2022 |
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| 101, Heath Park Road877 m away | 118 m² | 141 m² | +23 m² +19% | 2023 |
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| 90, Osborne Road943 m away | 104 m² | 127 m² | +23 m² +22% | 2019 |
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| 6b, Slewins Lane544 m away | 51 m² | 74 m² | +23 m² +45% | 2018 |
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| 132, Hillview Avenue768 m away | 45 m² | 67 m² | +22 m² +49% | 2013 |
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| 86a, Station Road743 m away | 75 m² | 96 m² | +21 m² +28% | 2024 |
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| 115, Northumberland Avenue350 m away | 58 m² | 79 m² | +21 m² +36% | 2023 |
|---|
| 33, Macdonald Avenue944 m away | 69 m² | 90 m² | +21 m² +30% | 2021 |
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| 12, Pinecroft560 m away | 73 m² | 94 m² | +21 m² +29% | 2019 |
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| 6, Kingsley Gardens520 m away | 81 m² | 102 m² | +21 m² +26% | 2018 |
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| 330, Brentwood Road759 m away | 102 m² | 123 m² | +21 m² +21% | 2018 |
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| 144, Ardleigh Green Road929 m away | 84 m² | 105 m² | +21 m² +25% | 2014 |
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| 32, Victoria House, Durham Avenue744 m away | 57 m² | 78 m² | +21 m² +37% | 2013 |
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| 35, Maybrick Road737 m away | 96 m² | 116 m² | +20 m² +21% | 2026 |
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| 8, Margaret Road958 m away | 87 m² | 107 m² | +20 m² +23% | 2025 |
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| 31, Durham Avenue746 m away | 90 m² | 110 m² | +20 m² +22% | 2024 |
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| 83, Hillview Avenue773 m away | 84 m² | 104 m² | +20 m² +24% | 2023 |
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| 153, Northumberland Avenue491 m away | 71 m² | 91 m² | +20 m² +28% | 2022 |
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| 221, Osborne Road893 m away | 114 m² | 134 m² | +20 m² +18% | 2021 |
|---|
| 11, Nelmes Close947 m away | 122 m² | 142 m² | +20 m² +16% | 2016 |
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| 15, Manor Crescent369 m away | 90 m² | 109 m² | +19 m² +21% | 2026 |
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