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 CM13 1NJ
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 |
|---|---|---|---|---|
| Oakwood, 51, Park Avenue827 m away | 202 m² | 354 m² | +152 m² +75% | 2023 |
| 89, Rayleigh Road667 m away | 115 m² | 266 m² | +151 m² +131% | 2015 |
| 8, Tennyson Road671 m away | 116 m² | 253 m² | +137 m² +118% | 2020 |
| 32, Arnolds Avenue932 m away | 91 m² | 206 m² | +115 m² +126% | 2019 |
| 34, Hall Green Lane719 m away | 118 m² | 228 m² | +110 m² +93% | 2025 |
| Eversley, Kingsley Road618 m away | 142 m² | 249 m² | +107 m² +75% | 2024 |
| 55, Hall Green Lane707 m away | 133 m² | 240 m² | +107 m² +80% | 2019 |
| 13, Tennyson Road671 m away | 154 m² | 259 m² | +105 m² +68% | 2021 |
| 25, Tennyson Road671 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.
| 133 m² |
| 235 m² |
| +102 m² +77% |
| 2015 |
| 4, Lordship Close750 m away | 127 m² | 228 m² | +101 m² +80% | 2020 |
|---|
| 11, Poplar Drive800 m away | 127 m² | 225 m² | +98 m² +77% | 2025 |
|---|
| 24, Delta Road197 m away | 92 m² | 187 m² | +95 m² +103% | 2019 |
|---|
| 239, Rayleigh Road106 m away | 62 m² | 149 m² | +87 m² +140% | 2021 |
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| 18, Oakwood Avenue521 m away | 83 m² | 167 m² | +84 m² +101% | 2021 |
|---|
| 69, Goodwood Avenue640 m away | 71 m² | 155 m² | +84 m² +118% | 2021 |
|---|
| 18, Park Avenue941 m away | 118 m² | 202 m² | +84 m² +71% | 2021 |
|---|
| 8, Woodland Close884 m away | 58 m² | 140 m² | +82 m² +141% | 2019 |
|---|
| 227, Hanging Hill Lane507 m away | 121 m² | 200 m² | +79 m² +65% | 2019 |
|---|
| 4, Arnolds Avenue896 m away | 56 m² | 134 m² | +78 m² +139% | 2024 |
|---|
| 222, Hanging Hill Lane653 m away | 172 m² | 249 m² | +77 m² +45% | 2025 |
|---|
| 113, Rayleigh Road351 m away | 93 m² | 170 m² | +77 m² +83% | 2017 |
|---|
| 77, Queenswood Avenue638 m away | 82 m² | 157 m² | +75 m² +91% | 2023 |
|---|
| 53, Park Avenue827 m away | 179 m² | 252 m² | +73 m² +41% | 2026 |
|---|
| 7, Lyndhurst Way833 m away | 102 m² | 174 m² | +72 m² +71% | 2024 |
|---|
| 26, Park Avenue941 m away | 124 m² | 196 m² | +72 m² +58% | 2019 |
|---|
| 121, Rayleigh Road351 m away | 214 m² | 284 m² | +70 m² +33% | 2020 |
|---|
| 65, Woodland Avenue809 m away | 68 m² | 136 m² | +68 m² +100% | 2022 |
|---|
| 6, Delta Road197 m away | 71 m² | 139 m² | +68 m² +96% | 2016 |
|---|
| 3, Mount Pleasant Avenue396 m away | 86 m² | 153 m² | +67 m² +78% | 2022 |
|---|
| 2, Sunray Avenue465 m away | 89 m² | 156 m² | +67 m² +75% | 2020 |
|---|
| 67, Hall Green Lane706 m away | 161 m² | 225 m² | +64 m² +40% | 2021 |
|---|
| 6, Graham Close794 m away | 95 m² | 159 m² | +64 m² +67% | 2019 |
|---|
| 4, Park Avenue941 m away | 148 m² | 210 m² | +62 m² +42% | 2024 |
|---|
| 40, Burses Way980 m away | 96 m² | 158 m² | +62 m² +65% | 2015 |
|---|
| 89, Woodland Avenue769 m away | 90 m² | 150 m² | +60 m² +67% | 2021 |
|---|
| 8, Burses Way788 m away | 90 m² | 149 m² | +59 m² +66% | 2022 |
|---|
| 2, Farm Close652 m away | 82 m² | 140 m² | +58 m² +71% | 2025 |
|---|
| 91, Long Ridings Avenue837 m away | 89 m² | 147 m² | +58 m² +65% | 2025 |
|---|
| 73, Goodwood Avenue640 m away | 131 m² | 189 m² | +58 m² +44% | 2024 |
|---|
| 17, Tennyson Road671 m away | 132 m² | 189 m² | +57 m² +43% | 2022 |
|---|
| 10, Leafy Way941 m away | 98 m² | 154 m² | +56 m² +57% | 2020 |
|---|
| 17, Alpha Road0 m away | 45 m² | 99 m² | +54 m² +120% | 2018 |
|---|
| 17, Surman Crescent915 m away | 96 m² | 150 m² | +54 m² +56% | 2014 |
|---|
| 42, Pine Crescent832 m away | 72 m² | 126 m² | +54 m² +75% | 2013 |
|---|
| 7, Farm Close652 m away | 129 m² | 182 m² | +53 m² +41% | 2014 |
|---|
| 200, Hanging Hill Lane829 m away | 118 m² | 168 m² | +50 m² +42% | 2026 |
|---|
| 47, Poplar Drive800 m away | 112 m² | 162 m² | +50 m² +45% | 2024 |
|---|
| 8, Copeman Road382 m away | 78 m² | 128 m² | +50 m² +64% | 2022 |
|---|
| 62, Long Ridings Avenue923 m away | 81 m² | 131 m² | +50 m² +62% | 2018 |
|---|
| 10, Carpenter Path415 m away | 89 m² | 138 m² | +49 m² +55% | 2012 |
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| 10, Coleridge Walk608 m away | 80 m² | 128 m² | +48 m² +60% | 2026 |
|---|
| 31, Byron Road463 m away | 85 m² | 133 m² | +48 m² +56% | 2020 |
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| 59, Arnolds Avenue897 m away | 60 m² | 108 m² | +48 m² +80% | 2020 |
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| 31, Edwards Way323 m away | 83 m² | 130 m² | +47 m² +57% | 2026 |
|---|
| 20, Wid Close768 m away | 100 m² | 147 m² | +47 m² +47% | 2023 |
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| 14, Newlands Close442 m away | 85 m² | 132 m² | +47 m² +55% | 2018 |
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| 5, Woodland Avenue909 m away | 97 m² | 144 m² | +47 m² +48% | 2014 |
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| 56, Queenswood Avenue794 m away | 82 m² | 128 m² | +46 m² +56% | 2023 |
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| 51, Wash Road346 m away | 83 m² | 129 m² | +46 m² +55% | 2019 |
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| 58, Woodland Avenue769 m away | 69 m² | 114 m² | +45 m² +65% | 2017 |
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| 248, Hanging Hill Lane653 m away | 69 m² | 114 m² | +45 m² +65% | 2015 |
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| 170, Rayleigh Road204 m away | 84 m² | 128 m² | +44 m² +52% | 2022 |
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| 2, Cedar Close266 m away | 83 m² | 127 m² | +44 m² +53% | 2022 |
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| 30, Arnolds Avenue932 m away | 81 m² | 125 m² | +44 m² +54% | 2013 |
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| 11, Cedar Road120 m away | 47 m² | 90 m² | +43 m² +91% | 2018 |
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| 33, Cedar Road120 m away | 137 m² | 179 m² | +42 m² +31% | 2026 |
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| 49, Long Ridings Avenue923 m away | 91 m² | 133 m² | +42 m² +46% | 2024 |
|---|
| 25, Park Avenue941 m away | 249 m² | 291 m² | +42 m² +17% | 2021 |
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| 2, Lordship Close750 m away | 146 m² | 187 m² | +41 m² +28% | 2026 |
|---|
| 14, Copeman Road382 m away | 66 m² | 107 m² | +41 m² +62% | 2024 |
|---|
| 146, Hutton Drive396 m away | 71 m² | 112 m² | +41 m² +58% | 2014 |
|---|
| 23, Woodland Close884 m away | 75 m² | 115 m² | +40 m² +53% | 2022 |
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| 35, Woodland Avenue909 m away | 80 m² | 119 m² | +39 m² +49% | 2021 |
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| 34, Coram Green427 m away | 84 m² | 122 m² | +38 m² +45% | 2021 |
|---|
| 11, Coleridge Walk608 m away | 111 m² | 148 m² | +37 m² +33% | 2024 |
|---|
| 41, Arnolds Avenue897 m away | 63 m² | 100 m² | +37 m² +59% | 2018 |
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| 28, Byron Road514 m away | 100 m² | 137 m² | +37 m² +37% | 2016 |
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| 46, Tomlyns Close387 m away | 125 m² | 162 m² | +37 m² +30% | 2015 |
|---|
| 153, Rayleigh Road351 m away | 141 m² | 177 m² | +36 m² +26% | 2025 |
|---|
| 21, Hall Green Lane719 m away | 175 m² | 211 m² | +36 m² +21% | 2015 |
|---|
| 115, Rayleigh Road351 m away | 134 m² | 169 m² | +35 m² +26% | 2025 |
|---|
| 23, Newmans Drive976 m away | 159 m² | 194 m² | +35 m² +22% | 2024 |
|---|
| 4, Collins Way682 m away | 157 m² | 192 m² | +35 m² +22% | 2023 |
|---|
| 3, Tennyson Road671 m away | 105 m² | 140 m² | +35 m² +33% | 2020 |
|---|
| 59, Woodland Avenue809 m away | 99 m² | 134 m² | +35 m² +35% | 2016 |
|---|
| 171, Rayleigh Road351 m away | 75 m² | 109 m² | +34 m² +45% | 2025 |
|---|
| 1, Carswell Close54 m away | 88 m² | 122 m² | +34 m² +39% | 2023 |
|---|
| 43, Arnolds Avenue897 m away | 78 m² | 112 m² | +34 m² +44% | 2022 |
|---|
| 149, Woodland Avenue657 m away | 70 m² | 104 m² | +34 m² +49% | 2021 |
|---|
| 68, Coram Green436 m away | 68 m² | 102 m² | +34 m² +50% | 2014 |
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| 222, Rayleigh Road345 m away | 79 m² | 112 m² | +33 m² +42% | 2022 |
|---|
| 26, Woodland Avenue809 m away | 86 m² | 119 m² | +33 m² +38% | 2013 |
|---|
| 5, Oakbank459 m away | 111 m² | 143 m² | +32 m² +29% | 2023 |
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| 6, Beaumont Gardens573 m away | 143 m² | 173 m² | +30 m² +21% | 2026 |
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| 91, Whittington Road463 m away | 36 m² | 66 m² | +30 m² +83% | 2025 |
|---|
| 71, Goodwood Avenue640 m away | 141 m² | 171 m² | +30 m² +21% | 2025 |
|---|
| 6, Waltham Close712 m away | 96 m² | 126 m² | +30 m² +31% | 2023 |
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| 113, Whittington Road512 m away | 79 m² | 109 m² | +30 m² +38% | 2018 |
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| 147, Rayleigh Road351 m away | 96 m² | 126 m² | +30 m² +31% | 2016 |
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| 45, Long Ridings Avenue923 m away | 87 m² | 116 m² | +29 m² +33% | 2026 |
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| 37, Boundary Drive553 m away | 71 m² | 100 m² | +29 m² +41% | 2024 |
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| 3, Magdalen Gardens504 m away | 74 m² | 103 m² | +29 m² +39% | 2022 |
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| 48, Hall Green Lane707 m away | 114 m² | 143 m² | +29 m² +25% | 2018 |
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| Dryden, Kingsley Road545 m away | 173 m² | 202 m² | +29 m² +17% | 2015 |
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| 31, Hall Green Lane719 m away | 148 m² | 177 m² | +29 m² +20% | 2012 |
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| 30, Woodland Avenue809 m away | 61 m² | 89 m² | +28 m² +46% | 2025 |
|---|
| 15, Lyndhurst Way833 m away | 120 m² | 147 m² | +27 m² +23% | 2025 |
|---|
| 16, Coram Green427 m away | 69 m² | 96 m² | +27 m² +39% | 2022 |
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| 64, Rayleigh Road608 m away | 82 m² | 109 m² | +27 m² +33% | 2014 |
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| 37, Byron Road463 m away | 83 m² | 109 m² | +26 m² +31% | 2026 |
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| 15, Newlands Close442 m away | 107 m² | 133 m² | +26 m² +24% | 2023 |
|---|
| 60, Hall Green Lane707 m away | 115 m² | 141 m² | +26 m² +23% | 2015 |
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| 20, Pine Crescent755 m away | 83 m² | 109 m² | +26 m² +31% | 2015 |
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| 21, Surman Crescent915 m away | 79 m² | 105 m² | +26 m² +33% | 2014 |
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| 7, Arnolds Close843 m away | 83 m² | 109 m² | +26 m² +31% | 2013 |
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| 5, Oakland Gardens950 m away | 105 m² | 130 m² | +25 m² +24% | 2025 |
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| 15, Woodland Avenue909 m away | 116 m² | 141 m² | +25 m² +22% | 2024 |
|---|
| 7, Storr Gardens699 m away | 112 m² | 137 m² | +25 m² +22% | 2021 |
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| 39, Cedar Road120 m away | 64 m² | 89 m² | +25 m² +39% | 2019 |
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| 1, Goodwood Avenue640 m away | 122 m² | 147 m² | +25 m² +20% | 2019 |
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| 17, Clifton Way897 m away | 104 m² | 129 m² | +25 m² +24% | 2018 |
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| 2, Broxted Mews651 m away | 145 m² | 169 m² | +24 m² +17% | 2026 |
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| 4, Harrison Close346 m away | 100 m² | 124 m² | +24 m² +24% | 2025 |
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| 67, Cedar Road267 m away | 66 m² | 90 m² | +24 m² +36% | 2023 |
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| 28, Burses Way788 m away | 135 m² | 159 m² | +24 m² +18% | 2019 |
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| 1, Colet Road514 m away | 76 m² | 100 m² | +24 m² +32% | 2013 |
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| 9, Shaw Crescent847 m away | 82 m² | 105 m² | +23 m² +28% | 2026 |
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| 31c, Tennyson Road671 m away | 91 m² | 114 m² | +23 m² +25% | 2025 |
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| 7, Springfield Avenue557 m away | 76 m² | 99 m² | +23 m² +30% | 2024 |
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| 8, Randalls Drive191 m away | 81 m² | 104 m² | +23 m² +28% | 2019 |
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| 51, Woodland Avenue809 m away | 64 m² | 87 m² | +23 m² +36% | 2019 |
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| 3, Alpha Road0 m away | 105 m² | 128 m² | +23 m² +22% | 2014 |
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| 10, Crushes Close121 m away | 122 m² | 145 m² | +23 m² +19% | 2014 |
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| Flat 1, Booths Court, Poplar Drive932 m away | 63 m² | 85 m² | +22 m² +35% | 2026 |
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| 42, Hutton Village670 m away | 56 m² | 78 m² | +22 m² +39% | 2022 |
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| 11, Boundary Drive465 m away | 78 m² | 100 m² | +22 m² +28% | 2020 |
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| 26, Boundary Drive465 m away | 55 m² | 77 m² | +22 m² +40% | 2018 |
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| 98, Woodland Avenue657 m away | 58 m² | 79 m² | +21 m² +36% | 2019 |
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| 13, Randalls Drive191 m away | 101 m² | 121 m² | +20 m² +20% | 2026 |
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| 15, Pine Crescent755 m away | 65 m² | 85 m² | +20 m² +31% | 2021 |
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| 5, Sunray Avenue465 m away | 125 m² | 145 m² | +20 m² +16% | 2019 |
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| 5, Harrison Close346 m away | 110 m² | 130 m² | +20 m² +18% | 2016 |
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| 32, Burses Way788 m away | 113 m² | 132 m² | +19 m² +17% | 2023 |
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| 94, Arnolds Avenue806 m away | 87 m² | 106 m² | +19 m² +22% | 2022 |
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| 1, Ardleigh Gardens280 m away | 71 m² | 90 m² | +19 m² +27% | 2018 |
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| 42, Edwards Way323 m away | 82 m² | 101 m² | +19 m² +23% | 2014 |
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| 61, Arnolds Avenue897 m away | 61 m² | 79 m² | +18 m² +30% | 2024 |
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| 19, Kelvedon Close357 m away | 60 m² | 78 m² | +18 m² +30% | 2021 |
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| 50, Goodwood Avenue600 m away | 95 m² | 113 m² | +18 m² +19% | 2020 |
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| 27, Mount Pleasant Avenue396 m away | 120 m² | 138 m² | +18 m² +15% | 2018 |
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| 24, Oakwood Avenue521 m away | 63 m² | 81 m² | +18 m² +29% | 2015 |
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| 190, Rayleigh Road204 m away | 83 m² | 101 m² | +18 m² +22% | 2011 |
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| 13, Pinewood Way702 m away | 81 m² | 98 m² | +17 m² +21% | 2023 |
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| 28, Boundary Drive465 m away | 77 m² | 94 m² | +17 m² +22% | 2021 |
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| 5, Wash Road201 m away | 84 m² | 101 m² | +17 m² +20% | 2019 |
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| 9, Rosemead Gardens836 m away | 106 m² | 123 m² | +17 m² +16% | 2017 |
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| 80, Long Ridings Avenue802 m away | 81 m² | 98 m² | +17 m² +21% | 2015 |
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| 46, Arnolds Avenue932 m away | 98 m² | 115 m² | +17 m² +17% | 2012 |
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| 18, Newlands Close442 m away | 99 m² | 115 m² | +16 m² +16% | 2015 |
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| 73, Arnolds Avenue838 m away | 81 m² | 97 m² | +16 m² +20% | 2012 |
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| 3, Rosen Crescent357 m away | 61 m² | 76 m² | +15 m² +25% | 2025 |
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| 12, Alpha Road0 m away | 75 m² | 90 m² | +15 m² +20% | 2018 |
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| 6, Storr Gardens699 m away | 90 m² | 105 m² | +15 m² +17% | 2015 |
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| 78, Long Ridings Avenue802 m away | 92 m² | 107 m² | +15 m² +16% | 2014 |
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