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 2HN
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 |
|---|---|---|---|---|
| 7, Woodlands Avenue803 m away | 248 m² | 555 m² | +307 m² +124% | 2015 |
| 4, Porchester Close990 m away | 187 m² | 401 m² | +214 m² +114% | 2014 |
| 3, Russetts812 m away | 151 m² | 326 m² | +175 m² +116% | 2021 |
| 15, Nelmes Way888 m away | 113 m² | 281 m² | +168 m² +149% | 2017 |
| 9, Ayloffs Walk722 m away | 143 m² | 285 m² | +142 m² +99% | 2020 |
| 60, Brookside885 m away | 115 m² | 243 m² | +128 m² +111% | 2016 |
| 8, Brookside669 m away | 112 m² | 231 m² | +119 m² +106% | 2022 |
| 2a, Burntwood Avenue985 m away | 160 m² | 276 m² | +116 m² +73% | 2015 |
| 1, Banyards887 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.
| 256 m² |
| +114 m² +80% |
| 2023 |
| 10, Eyre Close602 m away | 96 m² | 207 m² | +111 m² +116% | 2026 |
|---|
| 47, Pemberton Avenue920 m away | 120 m² | 229 m² | +109 m² +91% | 2025 |
|---|
| 25, Warrington Gardens687 m away | 87 m² | 194 m² | +107 m² +123% | 2024 |
|---|
| 15, Haynes Road400 m away | 85 m² | 191 m² | +106 m² +125% | 2019 |
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| 5, Mendoza Close900 m away | 209 m² | 314 m² | +105 m² +50% | 2022 |
|---|
| 59, Ardleigh Green Road472 m away | 124 m² | 227 m² | +103 m² +83% | 2017 |
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| 22, Burntwood Avenue985 m away | 259 m² | 359 m² | +100 m² +39% | 2025 |
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| 8, Walden Road977 m away | 153 m² | 251 m² | +98 m² +64% | 2025 |
|---|
| 475, Upper Brentwood Road459 m away | 85 m² | 180 m² | +95 m² +112% | 2022 |
|---|
| 22, Catherine Road826 m away | 78 m² | 172 m² | +94 m² +121% | 2024 |
|---|
| 19, Fairholme Avenue667 m away | 142 m² | 235 m² | +93 m² +65% | 2021 |
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| 176, Carlton Road994 m away | 72 m² | 164 m² | +92 m² +128% | 2021 |
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| 15, Edward Close983 m away | 143 m² | 234 m² | +91 m² +64% | 2026 |
|---|
| 421, Brentwood Road325 m away | 147 m² | 236 m² | +89 m² +61% | 2023 |
|---|
| 55, Kinfauns Avenue729 m away | 72 m² | 159 m² | +87 m² +121% | 2014 |
|---|
| 3, Westmoreland Avenue177 m away | 112 m² | 192 m² | +80 m² +71% | 2025 |
|---|
| 14a, Oak Glen989 m away | 76 m² | 156 m² | +80 m² +105% | 2023 |
|---|
| 103, Heath Park Road596 m away | 219 m² | 298 m² | +79 m² +36% | 2023 |
|---|
| 18, Balmoral Road658 m away | 117 m² | 195 m² | +78 m² +67% | 2025 |
|---|
| 4, Woodcutters Close323 m away | 145 m² | 222 m² | +77 m² +53% | 2020 |
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| 18, Compton Avenue658 m away | 87 m² | 163 m² | +76 m² +87% | 2025 |
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| 147, Haynes Road350 m away | 134 m² | 208 m² | +74 m² +55% | 2021 |
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| 163, Haynes Road350 m away | 79 m² | 153 m² | +74 m² +94% | 2017 |
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| 83, Haynes Road400 m away | 93 m² | 165 m² | +72 m² +77% | 2024 |
|---|
| 41, Heath Park Road892 m away | 118 m² | 189 m² | +71 m² +60% | 2020 |
|---|
| 21, Woodlands Avenue803 m away | 251 m² | 321 m² | +70 m² +28% | 2023 |
|---|
| 24, Hazel Rise528 m away | 96 m² | 165 m² | +69 m² +72% | 2020 |
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| 6, Burntwood Avenue985 m away | 323 m² | 390 m² | +67 m² +21% | 2014 |
|---|
| 100, Cranham Road791 m away | 65 m² | 130 m² | +65 m² +100% | 2016 |
|---|
| 8, The Woodfines956 m away | 199 m² | 264 m² | +65 m² +33% | 2016 |
|---|
| 80, Stafford Avenue758 m away | 44 m² | 108 m² | +64 m² +145% | 2024 |
|---|
| 9, Russetts812 m away | 166 m² | 230 m² | +64 m² +39% | 2020 |
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| 106, Squirrels Heath Lane426 m away | 104 m² | 168 m² | +64 m² +62% | 2014 |
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| 2, Warrington Gardens634 m away | 73 m² | 135 m² | +62 m² +85% | 2026 |
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| 40, Percival Road787 m away | 45 m² | 106 m² | +61 m² +136% | 2023 |
|---|
| 94, Northumberland Avenue38 m away | 61 m² | 122 m² | +61 m² +100% | 2021 |
|---|
| 12, Slewins Lane346 m away | 77 m² | 137 m² | +60 m² +78% | 2014 |
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| 28, Wykeham Avenue834 m away | 102 m² | 161 m² | +59 m² +58% | 2023 |
|---|
| 102, Osborne Road943 m away | 84 m² | 140 m² | +56 m² +67% | 2021 |
|---|
| 88, Squirrels Heath Lane426 m away | 87 m² | 142 m² | +55 m² +63% | 2025 |
|---|
| 114, Squirrels Heath Lane604 m away | 143 m² | 198 m² | +55 m² +38% | 2023 |
|---|
| 34, Great Gardens Road725 m away | 66 m² | 121 m² | +55 m² +83% | 2017 |
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| 114, Hillview Avenue834 m away | 53 m² | 107 m² | +54 m² +102% | 2026 |
|---|
| 54, Brooklands Gardens595 m away | 72 m² | 125 m² | +53 m² +74% | 2025 |
|---|
| 100, Hillview Avenue921 m away | 135 m² | 188 m² | +53 m² +39% | 2022 |
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| 51, Stafford Avenue901 m away | 88 m² | 141 m² | +53 m² +60% | 2020 |
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| 5, Lytton Road711 m away | 85 m² | 138 m² | +53 m² +62% | 2019 |
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| 270, Carlton Road749 m away | 80 m² | 131 m² | +51 m² +64% | 2021 |
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| 12, Ashlyn Grove718 m away | 76 m² | 127 m² | +51 m² +67% | 2020 |
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| 17, Rowan Walk407 m away | 126 m² | 177 m² | +51 m² +40% | 2019 |
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| 191, Northumberland Avenue219 m away | 122 m² | 172 m² | +50 m² +41% | 2026 |
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| 17, Eugene Close250 m away | 82 m² | 132 m² | +50 m² +61% | 2025 |
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| 111a, Hillview Avenue921 m away | 126 m² | 175 m² | +49 m² +39% | 2026 |
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| 7, Hardley Crescent385 m away | 118 m² | 167 m² | +49 m² +42% | 2025 |
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| 73, Slewins Lane427 m away | 153 m² | 202 m² | +49 m² +32% | 2025 |
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| 49, Heath Park Road892 m away | 174 m² | 223 m² | +49 m² +28% | 2024 |
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| 1, Catherine Road826 m away | 72 m² | 120 m² | +48 m² +67% | 2024 |
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| Flat 8, Waterwell Court, 3a, Manor Avenue270 m away | 52 m² | 98 m² | +46 m² +88% | 2026 |
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| 31, Amery Gardens932 m away | 77 m² | 123 m² | +46 m² +60% | 2023 |
|---|
| 185, Northumberland Avenue219 m away | 83 m² | 129 m² | +46 m² +55% | 2014 |
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| 67, Heath Park Road892 m away | 117 m² | 163 m² | +46 m² +39% | 2012 |
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| 21, Lytton Road711 m away | 133 m² | 178 m² | +45 m² +34% | 2024 |
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| 69, Birch Crescent937 m away | 81 m² | 126 m² | +45 m² +56% | 2020 |
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| 46, Percival Road787 m away | 46 m² | 91 m² | +45 m² +98% | 2019 |
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| 30, Squirrels Heath Avenue924 m away | 144 m² | 188 m² | +44 m² +31% | 2024 |
|---|
| 7, Slewins Lane346 m away | 158 m² | 202 m² | +44 m² +28% | 2020 |
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| 119, Northumberland Avenue0 m away | 60 m² | 104 m² | +44 m² +73% | 2019 |
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| 26, Wallenger Avenue846 m away | 137 m² | 180 m² | +43 m² +31% | 2025 |
|---|
| 88, Cranham Road791 m away | 90 m² | 133 m² | +43 m² +48% | 2024 |
|---|
| 14, Walden Way750 m away | 207 m² | 249 m² | +42 m² +20% | 2024 |
|---|
| 53, Hazelmere Gardens493 m away | 127 m² | 169 m² | +42 m² +33% | 2022 |
|---|
| 3, Oak Glen989 m away | 73 m² | 115 m² | +42 m² +58% | 2012 |
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| 3, Pemberton Avenue798 m away | 89 m² | 130 m² | +41 m² +46% | 2025 |
|---|
| 8, Maybrick Road748 m away | 115 m² | 156 m² | +41 m² +36% | 2022 |
|---|
| 6, Thorncroft924 m away | 65 m² | 105 m² | +40 m² +62% | 2026 |
|---|
| 46, Squirrels Heath Lane331 m away | 112 m² | 152 m² | +40 m² +36% | 2022 |
|---|
| 1, Margaret Close688 m away | 95 m² | 135 m² | +40 m² +42% | 2014 |
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| 7, Cranham Road807 m away | 85 m² | 125 m² | +40 m² +47% | 2014 |
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| 130, Northumberland Avenue252 m away | 61 m² | 101 m² | +40 m² +66% | 2012 |
|---|
| 55, Haynes Road400 m away | 92 m² | 131 m² | +39 m² +42% | 2022 |
|---|
| 3, Rowan Walk407 m away | 165 m² | 204 m² | +39 m² +24% | 2020 |
|---|
| 37, Cecil Avenue979 m away | 91 m² | 130 m² | +39 m² +43% | 2019 |
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| 7, Thorncroft924 m away | 65 m² | 103 m² | +38 m² +58% | 2026 |
|---|
| 130, Ardleigh Green Road912 m away | 80 m² | 118 m² | +38 m² +48% | 2025 |
|---|
| 27, Slewins Lane346 m away | 88 m² | 126 m² | +38 m² +43% | 2024 |
|---|
| 62, Great Gardens Road648 m away | 72 m² | 110 m² | +38 m² +53% | 2021 |
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| 3, Squirrels Heath Avenue888 m away | 152 m² | 190 m² | +38 m² +25% | 2016 |
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| 13, Warrington Gardens634 m away | 76 m² | 114 m² | +38 m² +50% | 2014 |
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| 18, Thorncroft924 m away | 98 m² | 135 m² | +37 m² +38% | 2024 |
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| 62, Cecil Avenue963 m away | 112 m² | 149 m² | +37 m² +33% | 2020 |
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| 9, Brooklands Gardens614 m away | 100 m² | 137 m² | +37 m² +37% | 2016 |
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| 43, Kingsley Gardens540 m away | 92 m² | 128 m² | +36 m² +39% | 2025 |
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| 67, Cranham Road807 m away | 82 m² | 118 m² | +36 m² +44% | 2024 |
|---|
| 222, Balgores Lane484 m away | 124 m² | 160 m² | +36 m² +29% | 2022 |
|---|
| 28, Whitethorn Gardens580 m away | 84 m² | 119 m² | +35 m² +42% | 2026 |
|---|
| 32, Hazel Rise528 m away | 68 m² | 103 m² | +35 m² +51% | 2021 |
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| 29, Thorncroft924 m away | 132 m² | 167 m² | +35 m² +27% | 2016 |
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| 34, Brookside669 m away | 93 m² | 127 m² | +34 m² +37% | 2024 |
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| 33, Stafford Avenue901 m away | 59 m² | 93 m² | +34 m² +58% | 2024 |
|---|
| 60, Cranham Road843 m away | 66 m² | 100 m² | +34 m² +52% | 2020 |
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| 8, Squirrels Heath Avenue924 m away | 137 m² | 171 m² | +34 m² +25% | 2011 |
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| 26, Oak Glen989 m away | 57 m² | 91 m² | +34 m² +60% | 2011 |
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| 11, Lewis Road790 m away | 85 m² | 118 m² | +33 m² +39% | 2026 |
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| 20, Pinecroft226 m away | 102 m² | 135 m² | +33 m² +32% | 2025 |
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| 25, Oak Glen989 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 Road617 m away | 68 m² | 101 m² | +33 m² +49% | 2016 |
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| 22, Balmoral Road658 m away | 126 m² | 159 m² | +33 m² +26% | 2015 |
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| 465, Upper Brentwood Road459 m away | 87 m² | 120 m² | +33 m² +38% | 2013 |
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| 25a, Percival Road787 m away | 81 m² | 113 m² | +32 m² +40% | 2025 |
|---|
| 12, Eugene Close250 m away | 78 m² | 109 m² | +31 m² +40% | 2025 |
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| 104, Osborne Road943 m away | 101 m² | 132 m² | +31 m² +31% | 2024 |
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| 32a, Northumberland Avenue238 m away | 113 m² | 144 m² | +31 m² +27% | 2023 |
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| 82, Haynes Road309 m away | 116 m² | 146 m² | +30 m² +26% | 2024 |
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| 36, Haynes Road350 m away | 84 m² | 114 m² | +30 m² +36% | 2023 |
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| 7, Percival Road787 m away | 67 m² | 97 m² | +30 m² +45% | 2023 |
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| 92, Northumberland Avenue38 m away | 101 m² | 131 m² | +30 m² +30% | 2022 |
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| 155, Squirrels Heath Lane700 m away | 101 m² | 131 m² | +30 m² +30% | 2022 |
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| 82, Stafford Avenue758 m away | 57 m² | 87 m² | +30 m² +53% | 2019 |
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| 26, Wykeham Avenue834 m away | 111 m² | 141 m² | +30 m² +27% | 2019 |
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| 86, Cambridge Avenue837 m away | 95 m² | 125 m² | +30 m² +32% | 2019 |
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| 8, Manor Crescent80 m away | 136 m² | 166 m² | +30 m² +22% | 2017 |
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| 120, Hillview Avenue834 m away | 77 m² | 106 m² | +29 m² +38% | 2025 |
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| 452, Upper Brentwood Road648 m away | 165 m² | 194 m² | +29 m² +18% | 2021 |
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| 9, Margaret Road695 m away | 105 m² | 134 m² | +29 m² +28% | 2021 |
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| 5, Fanshawe Crescent737 m away | 146 m² | 175 m² | +29 m² +20% | 2017 |
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| 56, Great Gardens Road648 m away | 98 m² | 127 m² | +29 m² +30% | 2014 |
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| 49, Hazelmere Gardens493 m away | 83 m² | 111 m² | +28 m² +34% | 2021 |
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| 51, Amery Gardens932 m away | 74 m² | 102 m² | +28 m² +38% | 2020 |
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| 61, Balgores Lane788 m away | 157 m² | 185 m² | +28 m² +18% | 2019 |
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| 37, Crossways851 m away | 170 m² | 198 m² | +28 m² +16% | 2014 |
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| 55, Cambridge Avenue826 m away | 83 m² | 110 m² | +27 m² +33% | 2020 |
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| 1, Ardleigh Green Road601 m away | 105 m² | 132 m² | +27 m² +26% | 2018 |
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| 6, Slewins Lane346 m away | 51 m² | 78 m² | +27 m² +53% | 2017 |
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| 8, Whitethorn Gardens580 m away | 87 m² | 114 m² | +27 m² +31% | 2017 |
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| 44, Cranham Road843 m away | 98 m² | 125 m² | +27 m² +28% | 2012 |
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| 371, Brentwood Road489 m away | 87 m² | 114 m² | +27 m² +31% | 2010 |
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| 18, Hardley Crescent385 m away | 111 m² | 137 m² | +26 m² +23% | 2023 |
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| 36, Heath Park Road953 m away | 81 m² | 107 m² | +26 m² +32% | 2023 |
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| 15, Stafford Avenue901 m away | 75 m² | 101 m² | +26 m² +35% | 2022 |
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| 109a, Hillview Avenue921 m away | 88 m² | 114 m² | +26 m² +30% | 2022 |
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| 41, Cavenham Gardens446 m away | 77 m² | 103 m² | +26 m² +34% | 2021 |
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| 147, Squirrels Heath Lane604 m away | 101 m² | 127 m² | +26 m² +26% | 2012 |
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| 96, Cecil Avenue963 m away | 87 m² | 113 m² | +26 m² +30% | 2010 |
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| 16, Eugene Close250 m away | 92 m² | 117 m² | +25 m² +27% | 2023 |
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| 141, Squirrels Heath Lane604 m away | 104 m² | 129 m² | +25 m² +24% | 2022 |
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| 240, Carlton Road856 m away | 97 m² | 122 m² | +25 m² +26% | 2017 |
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| 23, Lawrence Road863 m away | 158 m² | 183 m² | +25 m² +16% | 2015 |
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| Flat 55, Nyall Court, Kidman Close565 m away | 44 m² | 68 m² | +24 m² +55% | 2024 |
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| 181, Osborne Road997 m away | 90 m² | 114 m² | +24 m² +27% | 2024 |
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| 102, Northumberland Avenue38 m away | 67 m² | 91 m² | +24 m² +36% | 2023 |
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| 52, Haynes Road350 m away | 89 m² | 113 m² | +24 m² +27% | 2023 |
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| 4, Manor Crescent80 m away | 152 m² | 176 m² | +24 m² +16% | 2022 |
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| Flat 64, Nyall Court, Kidman Close565 m away | 36 m² | 60 m² | +24 m² +67% | 2022 |
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| 54, Woodfield Drive952 m away | 84 m² | 108 m² | +24 m² +29% | 2020 |
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| 101, Heath Park Road596 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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| 27a, Osborne Road991 m away | 143 m² | 166 m² | +23 m² +16% | 2019 |
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| 6b, Slewins Lane346 m away | 51 m² | 74 m² | +23 m² +45% | 2018 |
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| 80, Heath Park Road721 m away | 43 m² | 66 m² | +23 m² +53% | 2009 |
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| 23, Clive Road813 m away | 88 m² | 110 m² | +22 m² +25% | 2025 |
|---|
| 29, Stanley Avenue938 m away | 93 m² | 115 m² | +22 m² +24% | 2025 |
|---|
| 274, Carlton Road749 m away | 96 m² | 118 m² | +22 m² +23% | 2023 |
|---|
| 18, Squirrels Heath Avenue924 m away | 122 m² | 144 m² | +22 m² +18% | 2020 |
|---|
| 132, Hillview Avenue834 m away | 45 m² | 67 m² | +22 m² +49% | 2013 |
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| 4, Academy Fields Road921 m away | 113 m² | 135 m² | +22 m² +19% | 2013 |
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| 86a, Station Road394 m away | 75 m² | 96 m² | +21 m² +28% | 2024 |
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| 115, Northumberland Avenue0 m away | 58 m² | 79 m² | +21 m² +36% | 2023 |
|---|
| 216, Carlton Road856 m away | 98 m² | 119 m² | +21 m² +21% | 2023 |
|---|
| 16, Warwick Gardens822 m away | 114 m² | 135 m² | +21 m² +18% | 2021 |
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| 13, Kingsley Court885 m away | 27 m² | 48 m² | +21 m² +78% | 2021 |
|---|
| Flat 11, Masters Court, 3, Academy Fields Road892 m away | 46 m² | 67 m² | +21 m² +46% | 2021 |
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| 12, Pinecroft226 m away | 73 m² | 94 m² | +21 m² +29% | 2019 |
|---|
| 6, Kingsley Gardens512 m away | 81 m² | 102 m² | +21 m² +26% | 2018 |
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| 330, Brentwood Road566 m away | 102 m² | 123 m² | +21 m² +21% | 2018 |
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| 144, Ardleigh Green Road912 m away | 84 m² | 105 m² | +21 m² +25% | 2014 |
|---|
| 32, Victoria House, Durham Avenue475 m away | 57 m² | 78 m² | +21 m² +37% | 2013 |
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| 35, Maybrick Road641 m away | 96 m² | 116 m² | +20 m² +21% | 2026 |
|---|
| 8, Margaret Road695 m away | 87 m² | 107 m² | +20 m² +23% | 2025 |
|---|
| 31, Durham Avenue456 m away | 90 m² | 110 m² | +20 m² +22% | 2024 |
|---|
| 83, Hillview Avenue921 m away | 84 m² | 104 m² | +20 m² +24% | 2023 |
|---|
| 153, Northumberland Avenue219 m away | 71 m² | 91 m² | +20 m² +28% | 2022 |
|---|
| 221, Osborne Road997 m away | 114 m² | 134 m² | +20 m² +18% | 2021 |
|---|
| 14, Hamilton Road857 m away | 58 m² | 78 m² | +20 m² +34% | 2011 |
|---|
| 79, Woodfield Drive940 m away | 84 m² | 104 m² | +20 m² +24% | 2011 |
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| 15, Manor Crescent80 m away | 90 m² | 109 m² | +19 m² +21% | 2026 |
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| 94, Hillview Avenue921 m away | 105 m² | 124 m² | +19 m² +18% | 2026 |
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| 35, Harwood Avenue882 m away | 74 m² | 93 m² | +19 m² +26% | 2025 |
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| 52, Hamilton Road761 m away | 83 m² | 102 m² | +19 m² +23% | 2024 |
|---|
| 29, Brooklands Gardens614 m away | 75 m² | 94 m² | +19 m² +25% | 2023 |
|---|
| 278, Carlton Road749 m away | 85 m² | 104 m² | +19 m² +22% | 2022 |
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