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 RM1 4JA
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 |
|---|---|---|---|---|
| 26, Park Drive208 m away | 162 m² | 328 m² | +166 m² +102% | 2018 |
| 33, Oaklands Avenue484 m away | 145 m² | 297 m² | +152 m² +105% | 2023 |
| 88, Eastern Avenue East497 m away | 106 m² | 225 m² | +119 m² +112% | 2025 |
| 50, Mashiters Walk388 m away | 112 m² | 231 m² | +119 m² +106% | 2021 |
| 68, Havering Road701 m away | 103 m² | 215 m² | +112 m² +109% | 2024 |
| 123a, Pettits Lane576 m away | 94 m² | 205 m² | +111 m² +118% | 2025 |
| 87, Havering Road701 m away | 109 m² | 209 m² | +100 m² +92% | 2022 |
| 1, Ivey Villas, 62, Brooklands Road559 m away | 98 m² | 195 m² | +97 m² +99% | 2022 |
| 20, Park Drive208 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.
| 160 m² |
| 256 m² |
| +96 m² +60% |
| 2025 |
| 23, Parkland Avenue717 m away | 126 m² | 220 m² | +94 m² +75% | 2024 |
|---|
| 52, Mashiters Walk388 m away | 92 m² | 185 m² | +93 m² +101% | 2019 |
|---|
| 30, Lake Rise791 m away | 119 m² | 209 m² | +90 m² +76% | 2026 |
|---|
| 84, Pettits Lane549 m away | 148 m² | 235 m² | +87 m² +59% | 2023 |
|---|
| 111, Parkside Avenue431 m away | 85 m² | 171 m² | +86 m² +101% | 2021 |
|---|
| 15, The Avenue211 m away | 93 m² | 178 m² | +85 m² +91% | 2023 |
|---|
| 34, Knightsbridge Gardens962 m away | 74 m² | 156 m² | +82 m² +111% | 2019 |
|---|
| 51, Mawney Road779 m away | 104 m² | 185 m² | +81 m² +78% | 2015 |
|---|
| 71, Lake Rise757 m away | 106 m² | 186 m² | +80 m² +75% | 2018 |
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| 82, Marshalls Drive575 m away | 91 m² | 169 m² | +78 m² +86% | 2026 |
|---|
| 37, Havering Drive244 m away | 139 m² | 216 m² | +77 m² +55% | 2020 |
|---|
| 86, Mawney Road870 m away | 125 m² | 199 m² | +74 m² +59% | 2016 |
|---|
| 148, Pettits Lane784 m away | 72 m² | 146 m² | +74 m² +103% | 2013 |
|---|
| 32, Pettits Lane546 m away | 91 m² | 160 m² | +69 m² +76% | 2025 |
|---|
| 57, Eastern Avenue East516 m away | 60 m² | 129 m² | +69 m² +115% | 2016 |
|---|
| 47, Hainault Road449 m away | 93 m² | 160 m² | +67 m² +72% | 2024 |
|---|
| 61, Marshalls Drive437 m away | 87 m² | 154 m² | +67 m² +77% | 2022 |
|---|
| 109, Pettits Lane549 m away | 100 m² | 165 m² | +65 m² +65% | 2025 |
|---|
| 37, Kingston Road874 m away | 97 m² | 160 m² | +63 m² +65% | 2023 |
|---|
| 34, Poplar Street845 m away | 88 m² | 148 m² | +60 m² +68% | 2024 |
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| 6, Erroll Road854 m away | 104 m² | 163 m² | +59 m² +57% | 2026 |
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| 21, The Avenue211 m away | 94 m² | 153 m² | +59 m² +63% | 2023 |
|---|
| 34, Heather Drive845 m away | 63 m² | 121 m² | +58 m² +92% | 2026 |
|---|
| 33, Wainfleet Avenue951 m away | 85 m² | 143 m² | +58 m² +68% | 2026 |
|---|
| 25, The Chase135 m away | 116 m² | 174 m² | +58 m² +50% | 2024 |
|---|
| 2, Pettley Gardens874 m away | 51 m² | 109 m² | +58 m² +114% | 2022 |
|---|
| 104, Como Street678 m away | 87 m² | 143 m² | +56 m² +64% | 2025 |
|---|
| 102, Marks Road991 m away | 92 m² | 148 m² | +56 m² +61% | 2024 |
|---|
| 104, Seymer Road197 m away | 83 m² | 138 m² | +55 m² +66% | 2026 |
|---|
| 25, Linden Street567 m away | 163 m² | 217 m² | +54 m² +33% | 2025 |
|---|
| 85, Eastern Avenue East642 m away | 87 m² | 141 m² | +54 m² +62% | 2019 |
|---|
| 45, Pettits Lane546 m away | 121 m² | 173 m² | +52 m² +43% | 2020 |
|---|
| 43, Heather Drive845 m away | 58 m² | 110 m² | +52 m² +90% | 2016 |
|---|
| 255, Pettits Lane North947 m away | 93 m² | 144 m² | +51 m² +55% | 2025 |
|---|
| 4, Lofthaus Apartments, 47a, Market Place589 m away | 75 m² | 125 m² | +50 m² +67% | 2026 |
|---|
| 2, Hamilton Avenue622 m away | 104 m² | 154 m² | +50 m² +48% | 2021 |
|---|
| 114, North Street342 m away | 75 m² | 124 m² | +49 m² +65% | 2022 |
|---|
| 17, Heather Drive845 m away | 60 m² | 108 m² | +48 m² +80% | 2020 |
|---|
| 155, Pettits Lane667 m away | 93 m² | 139 m² | +46 m² +49% | 2026 |
|---|
| 59, Willow Street683 m away | 75 m² | 121 m² | +46 m² +61% | 2018 |
|---|
| 4, Lake Rise791 m away | 144 m² | 190 m² | +46 m² +32% | 2014 |
|---|
| 118, Havering Road805 m away | 84 m² | 129 m² | +45 m² +54% | 2020 |
|---|
| 12, Mashiters Walk282 m away | 100 m² | 143 m² | +43 m² +43% | 2025 |
|---|
| 38, Mawney Road722 m away | 126 m² | 169 m² | +43 m² +34% | 2023 |
|---|
| 32, Hamilton Avenue622 m away | 95 m² | 138 m² | +43 m² +45% | 2020 |
|---|
| 3, Pettits Lane607 m away | 139 m² | 181 m² | +42 m² +30% | 2024 |
|---|
| 62, Havering Drive244 m away | 88 m² | 130 m² | +42 m² +48% | 2021 |
|---|
| 71, Portnoi Close800 m away | 89 m² | 131 m² | +42 m² +47% | 2015 |
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| 62, Fontayne Avenue483 m away | 86 m² | 127 m² | +41 m² +48% | 2025 |
|---|
| Squirrels Lodge, 2a, Havering Drive201 m away | 193 m² | 234 m² | +41 m² +21% | 2021 |
|---|
| 14, Poplar Street845 m away | 82 m² | 123 m² | +41 m² +50% | 2021 |
|---|
| 12, Erroll Road854 m away | 86 m² | 125 m² | +39 m² +45% | 2024 |
|---|
| 78, Seymer Road197 m away | 40 m² | 79 m² | +39 m² +98% | 2022 |
|---|
| 10, Pettits Close737 m away | 92 m² | 130 m² | +38 m² +41% | 2026 |
|---|
| 87, Parkside Avenue431 m away | 74 m² | 112 m² | +38 m² +51% | 2025 |
|---|
| 23, Heather Drive845 m away | 57 m² | 95 m² | +38 m² +67% | 2019 |
|---|
| 12, Heather Drive845 m away | 55 m² | 93 m² | +38 m² +69% | 2014 |
|---|
| 22, Oaklands Avenue484 m away | 147 m² | 184 m² | +37 m² +25% | 2024 |
|---|
| 98, Havering Road701 m away | 122 m² | 159 m² | +37 m² +30% | 2024 |
|---|
| 122, Pettits Lane576 m away | 100 m² | 136 m² | +36 m² +36% | 2021 |
|---|
| 1, Saffron Road942 m away | 88 m² | 124 m² | +36 m² +41% | 2021 |
|---|
| 27, Heather Avenue778 m away | 101 m² | 137 m² | +36 m² +36% | 2020 |
|---|
| 9, Oaks Avenue819 m away | 67 m² | 102 m² | +35 m² +52% | 2026 |
|---|
| 195, Pettits Lane784 m away | 94 m² | 129 m² | +35 m² +37% | 2025 |
|---|
| 15, Dickens Way421 m away | 198 m² | 233 m² | +35 m² +18% | 2022 |
|---|
| 38, Woodlands Road646 m away | 63 m² | 98 m² | +35 m² +56% | 2019 |
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| 98, Marks Road991 m away | 94 m² | 129 m² | +35 m² +37% | 2017 |
|---|
| 144, Hainault Road783 m away | 80 m² | 115 m² | +35 m² +44% | 2016 |
|---|
| 86, Mashiters Walk434 m away | 94 m² | 128 m² | +34 m² +36% | 2026 |
|---|
| 53, Mcintosh Road252 m away | 114 m² | 148 m² | +34 m² +30% | 2024 |
|---|
| 146, Parkside Avenue581 m away | 62 m² | 96 m² | +34 m² +55% | 2023 |
|---|
| 10, Maple Street811 m away | 113 m² | 147 m² | +34 m² +30% | 2022 |
|---|
| 115, Cedar Road853 m away | 102 m² | 136 m² | +34 m² +33% | 2020 |
|---|
| 29, Wainfleet Avenue951 m away | 82 m² | 116 m² | +34 m² +41% | 2019 |
|---|
| 149, Parkside Avenue605 m away | 61 m² | 95 m² | +34 m² +56% | 2018 |
|---|
| 114, Lake Rise790 m away | 91 m² | 125 m² | +34 m² +37% | 2018 |
|---|
| 127, Mawney Road960 m away | 114 m² | 147 m² | +33 m² +29% | 2024 |
|---|
| 48, Woodlands Road646 m away | 156 m² | 189 m² | +33 m² +21% | 2022 |
|---|
| 144, Mildmay Road986 m away | 96 m² | 128 m² | +32 m² +33% | 2023 |
|---|
| 7, Heather Drive845 m away | 51 m² | 83 m² | +32 m² +63% | 2021 |
|---|
| 121, Parkside Avenue431 m away | 45 m² | 77 m² | +32 m² +71% | 2020 |
|---|
| 20, Erroll Road854 m away | 137 m² | 168 m² | +31 m² +23% | 2021 |
|---|
| 7, Wainfleet Avenue951 m away | 89 m² | 120 m² | +31 m² +35% | 2013 |
|---|
| 113, Parkside Avenue431 m away | 63 m² | 94 m² | +31 m² +49% | 2012 |
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| 27, Woodlands Road646 m away | 91 m² | 121 m² | +30 m² +33% | 2025 |
|---|
| 11, Junction Road785 m away | 21 m² | 51 m² | +30 m² +143% | 2021 |
|---|
| 33, High Street828 m away | 41 m² | 71 m² | +30 m² +73% | 2021 |
|---|
| 64, South Street894 m away | 52 m² | 82 m² | +30 m² +58% | 2020 |
|---|
| 135, Pettits Lane576 m away | 93 m² | 123 m² | +30 m² +32% | 2019 |
|---|
| 28a, Rosedale Road671 m away | 84 m² | 114 m² | +30 m² +36% | 2018 |
|---|
| 157, Index Apartments, Mercury Gardens704 m away | 70 m² | 99 m² | +29 m² +41% | 2022 |
|---|
| 65, Portnoi Close800 m away | 91 m² | 120 m² | +29 m² +32% | 2022 |
|---|
| 16, Havering Drive201 m away | 120 m² | 149 m² | +29 m² +24% | 2021 |
|---|
| 71, Marshalls Drive575 m away | 56 m² | 85 m² | +29 m² +52% | 2014 |
|---|
| 135, Dorset Avenue213 m away | 126 m² | 154 m² | +28 m² +22% | 2026 |
|---|
| 41, Verve Apartments, 5, Mercury Gardens939 m away | 32 m² | 60 m² | +28 m² +88% | 2026 |
|---|
| 10, Beech Street777 m away | 77 m² | 105 m² | +28 m² +36% | 2024 |
|---|
| 31, Malt House Place816 m away | 56 m² | 84 m² | +28 m² +50% | 2021 |
|---|
| 66, Cedar Road765 m away | 80 m² | 108 m² | +28 m² +35% | 2016 |
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| 169, North Street308 m away | 44 m² | 72 m² | +28 m² +64% | 2014 |
|---|
| 18, Collier Row Lane751 m away | 101 m² | 129 m² | +28 m² +28% | 2013 |
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| 43, Mawney Road779 m away | 94 m² | 121 m² | +27 m² +29% | 2024 |
|---|
| 38, Marshalls Drive399 m away | 72 m² | 98 m² | +26 m² +36% | 2022 |
|---|
| 184, North Street271 m away | 142 m² | 168 m² | +26 m² +18% | 2021 |
|---|
| 2, Raphael Avenue696 m away | 126 m² | 152 m² | +26 m² +21% | 2017 |
|---|
| 12, Rosemary Avenue665 m away | 144 m² | 169 m² | +25 m² +17% | 2023 |
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| 143a, Mawney Road960 m away | 35 m² | 60 m² | +25 m² +71% | 2021 |
|---|
| 32, Como Street551 m away | 107 m² | 132 m² | +25 m² +23% | 2019 |
|---|
| 34, Priests Avenue724 m away | 82 m² | 107 m² | +25 m² +30% | 2018 |
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| 20, Maxim Tower, Mercury Gardens692 m away | 39 m² | 64 m² | +25 m² +64% | 2015 |
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| 94, Seymer Road197 m away | 76 m² | 100 m² | +24 m² +32% | 2024 |
|---|
| 11, Vine Street778 m away | 79 m² | 103 m² | +24 m² +30% | 2024 |
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| 5, Olive Street656 m away | 98 m² | 122 m² | +24 m² +24% | 2023 |
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| 6, Woodlands Road646 m away | 103 m² | 127 m² | +24 m² +23% | 2021 |
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| Flat 62, Nayland Court, Market Place573 m away | 68 m² | 92 m² | +24 m² +35% | 2018 |
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| 119, Eastern Avenue East642 m away | 99 m² | 123 m² | +24 m² +24% | 2014 |
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| 93, Seymer Road243 m away | 80 m² | 104 m² | +24 m² +30% | 2013 |
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| 85, Mawney Road857 m away | 150 m² | 174 m² | +24 m² +16% | 2009 |
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| 49, Brooklands Road559 m away | 77 m² | 100 m² | +23 m² +30% | 2026 |
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| 4, Aveley Road365 m away | 74 m² | 97 m² | +23 m² +31% | 2025 |
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| 116, Pettits Lane576 m away | 136 m² | 159 m² | +23 m² +17% | 2021 |
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| 30, Ferndale Road964 m away | 77 m² | 100 m² | +23 m² +30% | 2020 |
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| 32, Kingston Road874 m away | 143 m² | 166 m² | +23 m² +16% | 2019 |
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| 106, Mildmay Road986 m away | 81 m² | 103 m² | +22 m² +27% | 2025 |
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| 35, Eastern Avenue East467 m away | 65 m² | 87 m² | +22 m² +34% | 2024 |
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| 64, Exon Apartments, Mercury Gardens668 m away | 54 m² | 76 m² | +22 m² +41% | 2024 |
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| Apartment 5, Rubicon Court, 21 - 23, North Street608 m away | 43 m² | 65 m² | +22 m² +51% | 2019 |
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| 22, The Avenue211 m away | 117 m² | 139 m² | +22 m² +19% | 2017 |
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| 5, Wainfleet Avenue951 m away | 86 m² | 108 m² | +22 m² +26% | 2016 |
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| 2, Heather Drive845 m away | 102 m² | 124 m² | +22 m² +22% | 2012 |
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| 105, Mashiters Walk480 m away | 98 m² | 119 m² | +21 m² +21% | 2025 |
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| 85, Dorset Avenue213 m away | 96 m² | 117 m² | +21 m² +22% | 2023 |
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| Flat 3, Graveney Court, Riverside Close395 m away | 53 m² | 74 m² | +21 m² +40% | 2023 |
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| 9, Beech Street777 m away | 111 m² | 132 m² | +21 m² +19% | 2022 |
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| 6, Hainault Road449 m away | 66 m² | 87 m² | +21 m² +32% | 2021 |
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| 182, Hainault Road926 m away | 85 m² | 106 m² | +21 m² +25% | 2021 |
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| Flat 1, Hill Court, Main Road753 m away | 60 m² | 81 m² | +21 m² +35% | 2020 |
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| 94, Dorset Avenue213 m away | 81 m² | 102 m² | +21 m² +26% | 2019 |
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| 95, Lake Rise757 m away | 95 m² | 116 m² | +21 m² +22% | 2019 |
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| 44, Heather Drive845 m away | 115 m² | 136 m² | +21 m² +18% | 2019 |
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| 8, Malt House Place816 m away | 40 m² | 61 m² | +21 m² +53% | 2016 |
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| 5, Hill Grove378 m away | 91 m² | 111 m² | +20 m² +22% | 2025 |
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| Flat 6, Chartwell Place, Junction Road705 m away | 65 m² | 85 m² | +20 m² +31% | 2022 |
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| 31, Rosedale Road577 m away | 100 m² | 120 m² | +20 m² +20% | 2018 |
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| 7, The Avenue211 m away | 129 m² | 149 m² | +20 m² +16% | 2014 |
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| 27, Maxim Tower, Mercury Gardens692 m away | 40 m² | 60 m² | +20 m² +50% | 2011 |
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| 9, Collier Row Lane768 m away | 64 m² | 83 m² | +19 m² +30% | 2024 |
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| 14, Beech Street777 m away | 77 m² | 96 m² | +19 m² +25% | 2024 |
|---|
| 22, Knightsbridge Gardens962 m away | 76 m² | 95 m² | +19 m² +25% | 2021 |
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| 7, Yew Tree Gardens878 m away | 89 m² | 108 m² | +19 m² +21% | 2019 |
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| 96, Como Street678 m away | 103 m² | 121 m² | +18 m² +17% | 2025 |
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| Flat 8, Chartwell Place, Junction Road705 m away | 47 m² | 65 m² | +18 m² +38% | 2024 |
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| Flat 11, Magnolia Court, 31, Mawney Road779 m away | 66 m² | 84 m² | +18 m² +27% | 2023 |
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| 11, Kingston Road909 m away | 55 m² | 73 m² | +18 m² +33% | 2022 |
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| 117, Dorset Avenue213 m away | 78 m² | 96 m² | +18 m² +23% | 2020 |
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| 32, Malt House Place816 m away | 41 m² | 59 m² | +18 m² +44% | 2020 |
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| 7, Heather Glen726 m away | 83 m² | 101 m² | +18 m² +22% | 2019 |
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| Flat 11, Fernleigh Court, 95, Mawney Road912 m away | 38 m² | 56 m² | +18 m² +47% | 2016 |
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| 12, Medora Road497 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
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| Flat 7, Amber Court, High Street779 m away | 41 m² | 58 m² | +17 m² +41% | 2025 |
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| 13, Oaks Avenue819 m away | 95 m² | 112 m² | +17 m² +18% | 2024 |
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| 4, Hainault Road449 m away | 75 m² | 92 m² | +17 m² +23% | 2023 |
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| 70, Mildmay Road925 m away | 81 m² | 98 m² | +17 m² +21% | 2023 |
|---|
| 57, Parkside Avenue353 m away | 84 m² | 101 m² | +17 m² +20% | 2021 |
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| 66, Exon Apartments, Mercury Gardens668 m away | 32 m² | 49 m² | +17 m² +53% | 2021 |
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| 20, Malt House Place816 m away | 41 m² | 58 m² | +17 m² +41% | 2020 |
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| 98, Lake Rise790 m away | 101 m² | 118 m² | +17 m² +17% | 2016 |
|---|
| 22, Saffron Road942 m away | 78 m² | 95 m² | +17 m² +22% | 2013 |
|---|
| 53, Mawney Road779 m away | 102 m² | 119 m² | +17 m² +17% | 2012 |
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| 92, Eastern Avenue East497 m away | 107 m² | 124 m² | +17 m² +16% | 2011 |
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| 22, Angel Way725 m away | 61 m² | 78 m² | +17 m² +28% | 2011 |
|---|
| 17, Medora Road497 m away | 98 m² | 114 m² | +16 m² +16% | 2025 |
|---|
| Flat 8, Magnolia Court, 31, Mawney Road779 m away | 66 m² | 82 m² | +16 m² +24% | 2023 |
|---|
| 35, Medora Road497 m away | 83 m² | 99 m² | +16 m² +19% | 2020 |
|---|
| 8, Pettits Close737 m away | 82 m² | 98 m² | +16 m² +20% | 2019 |
|---|
| 17, Havering Road570 m away | 103 m² | 119 m² | +16 m² +16% | 2012 |
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| 25, Malt House Place816 m away | 41 m² | 57 m² | +16 m² +39% | 2012 |
|---|
| Flat 22, Oak House, Cottons Approach937 m away | 48 m² | 64 m² | +16 m² +33% | 2011 |
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| Flat 11, Byron Court, 25 - 31, South Street766 m away | 30 m² | 46 m² | +16 m² +53% | 2010 |
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| Flat 4, North Park Court, 1a, Parkside Avenue392 m away | 45 m² | 60 m² | +15 m² +33% | 2026 |
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| 37, Maxim Tower, Mercury Gardens692 m away | 47 m² | 62 m² | +15 m² +32% | 2025 |
|---|
| 9, Ferndale Road964 m away | 71 m² | 86 m² | +15 m² +21% | 2025 |
|---|
| 38, Ashmour Gardens581 m away | 58 m² | 73 m² | +15 m² +26% | 2024 |
|---|
| 77, Havering Road701 m away | 91 m² | 106 m² | +15 m² +16% | 2024 |
|---|
| 179, Hainault Road799 m away | 82 m² | 97 m² | +15 m² +18% | 2024 |
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| 10, Ives Gardens994 m away | 96 m² | 111 m² | +15 m² +16% | 2024 |
|---|
| Flat 5, Magnolia Court, 31, Mawney Road779 m away | 66 m² | 81 m² | +15 m² +23% | 2023 |
|---|
| Flat 2, Magnolia Court, 31, Mawney Road779 m away | 66 m² | 81 m² | +15 m² +23% | 2023 |
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| 26, Brooklands Road561 m away | 94 m² | 109 m² | +15 m² +16% | 2022 |
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| Flat 1, The Gatehouse, High Street787 m away | 47 m² | 62 m² | +15 m² +32% | 2019 |
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| 52, Marks Road991 m away | 73 m² | 88 m² | +15 m² +21% | 2019 |
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