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 N15 3LP
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 |
|---|---|---|---|---|
| 114, Boundary Road529 m away | 119 m² | 238 m² | +119 m² +100% | 2014 |
| 69, Mayes Road999 m away | 174 m² | 285 m² | +111 m² +64% | 2025 |
| 126, Boundary Road529 m away | 103 m² | 206 m² | +103 m² +100% | 2014 |
| 55, Beresford Road808 m away | 70 m² | 163 m² | +93 m² +133% | 2021 |
| 17, Falkland Road723 m away | 68 m² | 158 m² | +90 m² +132% | 2023 |
| 226, Boundary Road765 m away | 91 m² | 178 m² | +87 m² +96% | 2015 |
| 65, Walpole Road887 m away | 176 m² | 262 m² | +86 m² +49% | 2024 |
| 349, Wightman Road795 m away | 64 m² | 148 m² | +84 m² +131% | 2018 |
| 43, Meads Road389 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.
| 87 m² |
| 169 m² |
| +82 m² +94% |
| 2025 |
| 167, Carlingford Road383 m away | 63 m² | 142 m² | +79 m² +125% | 2026 |
|---|
| 92, Hampden Road480 m away | 95 m² | 172 m² | +77 m² +81% | 2011 |
|---|
| 125b, Willingdon Road493 m away | 79 m² | 153 m² | +74 m² +94% | 2020 |
|---|
| 85, Allison Road796 m away | 122 m² | 196 m² | +74 m² +61% | 2013 |
|---|
| 45, Meads Road389 m away | 87 m² | 160 m² | +73 m² +84% | 2026 |
|---|
| 131, Russell Avenue593 m away | 89 m² | 159 m² | +70 m² +79% | 2014 |
|---|
| 135, Effingham Road637 m away | 111 m² | 180 m² | +69 m² +62% | 2021 |
|---|
| 64, Turnpike Lane596 m away | 55 m² | 123 m² | +68 m² +124% | 2022 |
|---|
| 158, Walpole Road874 m away | 85 m² | 153 m² | +68 m² +80% | 2021 |
|---|
| 41, Rusper Road452 m away | 78 m² | 145 m² | +67 m² +86% | 2026 |
|---|
| 160, Carlingford Road370 m away | 59 m² | 126 m² | +67 m² +114% | 2018 |
|---|
| 45b, Langham Road591 m away | 49 m² | 115 m² | +66 m² +135% | 2024 |
|---|
| 211, Downhills Way810 m away | 90 m² | 155 m² | +65 m² +72% | 2025 |
|---|
| 129, Seymour Road925 m away | 124 m² | 189 m² | +65 m² +52% | 2022 |
|---|
| 76, Downhills Way757 m away | 80 m² | 145 m² | +65 m² +81% | 2020 |
|---|
| 106, Russell Avenue547 m away | 83 m² | 147 m² | +64 m² +77% | 2026 |
|---|
| 169, Downhills Way810 m away | 92 m² | 156 m² | +64 m² +70% | 2023 |
|---|
| 75, Woodlands Park Road862 m away | 96 m² | 160 m² | +64 m² +67% | 2023 |
|---|
| 19, Mannock Road160 m away | 97 m² | 161 m² | +64 m² +66% | 2022 |
|---|
| 37, Rusper Road452 m away | 103 m² | 167 m² | +64 m² +62% | 2019 |
|---|
| 43, Effingham Road767 m away | 98 m² | 161 m² | +63 m² +64% | 2024 |
|---|
| 101, Belmont Road421 m away | 111 m² | 174 m² | +63 m² +57% | 2023 |
|---|
| 151, Willingdon Road493 m away | 115 m² | 177 m² | +62 m² +54% | 2025 |
|---|
| 90, Lausanne Road497 m away | 70 m² | 131 m² | +61 m² +87% | 2026 |
|---|
| 113, Allison Road796 m away | 134 m² | 195 m² | +61 m² +46% | 2018 |
|---|
| 25, Keston Road856 m away | 108 m² | 168 m² | +60 m² +56% | 2026 |
|---|
| 95, Langham Road265 m away | 58 m² | 118 m² | +60 m² +103% | 2025 |
|---|
| 7, Belmont Avenue332 m away | 61 m² | 121 m² | +60 m² +98% | 2025 |
|---|
| 85, Raleigh Road467 m away | 135 m² | 195 m² | +60 m² +44% | 2025 |
|---|
| 27, Effingham Road767 m away | 98 m² | 158 m² | +60 m² +61% | 2021 |
|---|
| 80, Alexandra Road682 m away | 134 m² | 194 m² | +60 m² +45% | 2020 |
|---|
| 111, Glenwood Road727 m away | 97 m² | 156 m² | +59 m² +61% | 2019 |
|---|
| 38, Beresford Road824 m away | 108 m² | 166 m² | +58 m² +54% | 2023 |
|---|
| 67, Fairfax Road700 m away | 59 m² | 117 m² | +58 m² +98% | 2018 |
|---|
| 28, Willingdon Road376 m away | 121 m² | 179 m² | +58 m² +48% | 2016 |
|---|
| 26, Farrant Avenue733 m away | 59 m² | 117 m² | +58 m² +98% | 2014 |
|---|
| 57, Falkland Road528 m away | 114 m² | 171 m² | +57 m² +50% | 2026 |
|---|
| 11, Westbeech Road435 m away | 71 m² | 127 m² | +56 m² +79% | 2026 |
|---|
| 196a, Langham Road75 m away | 66 m² | 122 m² | +56 m² +85% | 2025 |
|---|
| 48, Downhills Avenue957 m away | 85 m² | 141 m² | +56 m² +66% | 2025 |
|---|
| 19, Salisbury Road964 m away | 45 m² | 101 m² | +56 m² +124% | 2024 |
|---|
| 110, Langham Road241 m away | 117 m² | 173 m² | +56 m² +48% | 2023 |
|---|
| 11, Mannock Road210 m away | 113 m² | 169 m² | +56 m² +50% | 2022 |
|---|
| 71, Harringay Road639 m away | 89 m² | 145 m² | +56 m² +63% | 2019 |
|---|
| 84, Walpole Road684 m away | 81 m² | 136 m² | +55 m² +68% | 2025 |
|---|
| 45, Hewitt Road927 m away | 120 m² | 175 m² | +55 m² +46% | 2022 |
|---|
| 112, Carlingford Road206 m away | 54 m² | 108 m² | +54 m² +100% | 2023 |
|---|
| 9, Alfoxton Avenue323 m away | 62 m² | 116 m² | +54 m² +87% | 2015 |
|---|
| 158, Carlingford Road370 m away | 132 m² | 185 m² | +53 m² +40% | 2024 |
|---|
| 8, Boreham Road792 m away | 99 m² | 152 m² | +53 m² +54% | 2022 |
|---|
| 95, Boundary Road287 m away | 103 m² | 156 m² | +53 m² +51% | 2018 |
|---|
| 33, Ritches Road964 m away | 45 m² | 98 m² | +53 m² +118% | 2012 |
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| 434, St Anns Road868 m away | 58 m² | 110 m² | +52 m² +90% | 2025 |
|---|
| 61, Falkland Road528 m away | 119 m² | 171 m² | +52 m² +44% | 2024 |
|---|
| 111, Seymour Road925 m away | 99 m² | 151 m² | +52 m² +53% | 2024 |
|---|
| 147, Boundary Road535 m away | 119 m² | 171 m² | +52 m² +44% | 2021 |
|---|
| 18, Russell Avenue512 m away | 82 m² | 134 m² | +52 m² +63% | 2014 |
|---|
| 162, Walpole Road874 m away | 99 m² | 151 m² | +52 m² +53% | 2012 |
|---|
| 30, Kirkstall Avenue943 m away | 112 m² | 163 m² | +51 m² +46% | 2025 |
|---|
| 31, Burghley Road593 m away | 103 m² | 154 m² | +51 m² +50% | 2021 |
|---|
| 15, Harringay Road779 m away | 95 m² | 145 m² | +50 m² +53% | 2026 |
|---|
| 92, Downhills Way757 m away | 88 m² | 138 m² | +50 m² +57% | 2024 |
|---|
| 214, Boundary Road765 m away | 122 m² | 172 m² | +50 m² +41% | 2021 |
|---|
| 35, Cranleigh Road806 m away | 116 m² | 166 m² | +50 m² +43% | 2014 |
|---|
| 48, Salisbury Road992 m away | 38 m² | 88 m² | +50 m² +132% | 2009 |
|---|
| 24, Graham Road154 m away | 82 m² | 131 m² | +49 m² +60% | 2026 |
|---|
| 68, Beresford Road824 m away | 118 m² | 167 m² | +49 m² +42% | 2022 |
|---|
| Zinnia, Stanmore Road285 m away | 71 m² | 120 m² | +49 m² +69% | 2018 |
|---|
| 7, Seymour Road995 m away | 116 m² | 165 m² | +49 m² +42% | 2016 |
|---|
| 62, Downhills Way623 m away | 89 m² | 137 m² | +48 m² +54% | 2025 |
|---|
| 106, Hewitt Road885 m away | 131 m² | 179 m² | +48 m² +37% | 2024 |
|---|
| 72, Falkland Road549 m away | 105 m² | 153 m² | +48 m² +46% | 2022 |
|---|
| 37, Willingdon Road411 m away | 102 m² | 150 m² | +48 m² +47% | 2018 |
|---|
| 13, Linden Road509 m away | 137 m² | 185 m² | +48 m² +35% | 2016 |
|---|
| 136, Sirdar Road367 m away | 78 m² | 126 m² | +48 m² +62% | 2014 |
|---|
| 2, Boreham Road792 m away | 43 m² | 91 m² | +48 m² +112% | 2014 |
|---|
| 77, Allison Road796 m away | 127 m² | 174 m² | +47 m² +37% | 2026 |
|---|
| 223, Gladstone Avenue839 m away | 100 m² | 147 m² | +47 m² +47% | 2026 |
|---|
| 149, Russell Avenue686 m away | 131 m² | 178 m² | +47 m² +36% | 2025 |
|---|
| 10, Frobisher Road729 m away | 122 m² | 169 m² | +47 m² +39% | 2025 |
|---|
| 166, Higham Road865 m away | 87 m² | 134 m² | +47 m² +54% | 2023 |
|---|
| 63, Falkland Road528 m away | 117 m² | 164 m² | +47 m² +40% | 2020 |
|---|
| 102, Harringay Road645 m away | 88 m² | 135 m² | +47 m² +53% | 2020 |
|---|
| 27, Sandringham Road550 m away | 100 m² | 147 m² | +47 m² +47% | 2019 |
|---|
| Flat 3, 5, Belmont Road408 m away | 45 m² | 92 m² | +47 m² +104% | 2018 |
|---|
| 12l, Woodlands Park Road713 m away | 62 m² | 109 m² | +47 m² +76% | 2018 |
|---|
| 148, High Road874 m away | 34 m² | 81 m² | +47 m² +138% | 2015 |
|---|
| 74, Hampden Road657 m away | 62 m² | 109 m² | +47 m² +76% | 2012 |
|---|
| 143, Effingham Road637 m away | 53 m² | 99 m² | +46 m² +87% | 2025 |
|---|
| 41, Fairfax Road700 m away | 94 m² | 140 m² | +46 m² +49% | 2018 |
|---|
| Flat 1, 4, Etherley Road777 m away | 33 m² | 79 m² | +46 m² +139% | 2013 |
|---|
| 22, Park Ridings778 m away | 92 m² | 137 m² | +45 m² +49% | 2026 |
|---|
| 53, Carlingford Road45 m away | 120 m² | 165 m² | +45 m² +38% | 2025 |
|---|
| 28, Lausanne Road642 m away | 53 m² | 98 m² | +45 m² +85% | 2025 |
|---|
| 210, Downhills Park Road295 m away | 92 m² | 137 m² | +45 m² +49% | 2023 |
|---|
| 54, Beresford Road824 m away | 123 m² | 168 m² | +45 m² +37% | 2023 |
|---|
| 36, Sydney Road543 m away | 108 m² | 153 m² | +45 m² +42% | 2021 |
|---|
| 6, Waldeck Road192 m away | 117 m² | 162 m² | +45 m² +38% | 2019 |
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| 42b, Park Road559 m away | 53 m² | 98 m² | +45 m² +85% | 2019 |
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| 78, Hampden Road657 m away | 60 m² | 105 m² | +45 m² +75% | 2014 |
|---|
| 114, Seymour Road952 m away | 128 m² | 172 m² | +44 m² +34% | 2025 |
|---|
| 28, Stanmore Road307 m away | 133 m² | 177 m² | +44 m² +33% | 2023 |
|---|
| 108, Sydney Road543 m away | 126 m² | 170 m² | +44 m² +35% | 2023 |
|---|
| 68, Avondale Road822 m away | 99 m² | 143 m² | +44 m² +44% | 2020 |
|---|
| 74, Clinton Road910 m away | 72 m² | 116 m² | +44 m² +61% | 2020 |
|---|
| 22, Beresford Road824 m away | 101 m² | 145 m² | +44 m² +44% | 2017 |
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| 46, Alexandra Road637 m away | 67 m² | 111 m² | +44 m² +66% | 2010 |
|---|
| 79l, Carlingford Road45 m away | 68 m² | 111 m² | +43 m² +63% | 2026 |
|---|
| 127, Beresford Road702 m away | 109 m² | 152 m² | +43 m² +39% | 2026 |
|---|
| 58, Allison Road898 m away | 62 m² | 105 m² | +43 m² +69% | 2025 |
|---|
| 147, Russell Avenue686 m away | 89 m² | 132 m² | +43 m² +48% | 2022 |
|---|
| 69, Effingham Road767 m away | 95 m² | 138 m² | +43 m² +45% | 2020 |
|---|
| 110, Carlingford Road206 m away | 118 m² | 161 m² | +43 m² +36% | 2019 |
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| 122, Allison Road817 m away | 127 m² | 170 m² | +43 m² +34% | 2018 |
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| 20, Fairfax Road739 m away | 80 m² | 123 m² | +43 m² +54% | 2017 |
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| 44, Ritches Road964 m away | 98 m² | 141 m² | +43 m² +44% | 2015 |
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| 196, Lymington Avenue665 m away | 39 m² | 82 m² | +43 m² +110% | 2013 |
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| 11, Colina Road726 m away | 44 m² | 86 m² | +42 m² +95% | 2026 |
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| 47, Effingham Road767 m away | 99 m² | 141 m² | +42 m² +42% | 2024 |
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| 201, Langham Road0 m away | 116 m² | 158 m² | +42 m² +36% | 2023 |
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| 63, Hornsey Park Road853 m away | 117 m² | 159 m² | +42 m² +36% | 2022 |
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| 132, Hewitt Avenue615 m away | 44 m² | 86 m² | +42 m² +95% | 2021 |
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| 98, Gladstone Avenue672 m away | 63 m² | 105 m² | +42 m² +67% | 2021 |
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| 41a, Clinton Road910 m away | 69 m² | 111 m² | +42 m² +61% | 2019 |
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| 52, Turnpike Lane487 m away | 60 m² | 102 m² | +42 m² +70% | 2014 |
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| 14, Cranleigh Road853 m away | 107 m² | 148 m² | +41 m² +38% | 2026 |
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| 141, Farrant Avenue807 m away | 76 m² | 117 m² | +41 m² +54% | 2025 |
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| 26, Stanmore Road307 m away | 127 m² | 168 m² | +41 m² +32% | 2024 |
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| 4, Bourn Avenue997 m away | 86 m² | 127 m² | +41 m² +48% | 2019 |
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| 85, Carlingford Road45 m away | 36 m² | 77 m² | +41 m² +114% | 2018 |
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| 109, Allison Road796 m away | 136 m² | 177 m² | +41 m² +30% | 2018 |
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| 3, Albany Close577 m away | 57 m² | 97 m² | +40 m² +70% | 2026 |
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| 21, Belmont Avenue332 m away | 35 m² | 75 m² | +40 m² +114% | 2025 |
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| 5, Coombe Road921 m away | 84 m² | 124 m² | +40 m² +48% | 2023 |
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| 41, Sirdar Road436 m away | 62 m² | 102 m² | +40 m² +65% | 2022 |
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| 60, Fairfax Road739 m away | 97 m² | 137 m² | +40 m² +41% | 2022 |
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| 72, Willingdon Road444 m away | 113 m² | 153 m² | +40 m² +35% | 2021 |
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| 79, Fairfax Road576 m away | 101 m² | 141 m² | +40 m² +40% | 2021 |
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| 1, Hastings Road956 m away | 95 m² | 135 m² | +40 m² +42% | 2017 |
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| 10, Hawke Park Road306 m away | 86 m² | 126 m² | +40 m² +47% | 2014 |
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| 22, Hewitt Avenue545 m away | 94 m² | 134 m² | +40 m² +43% | 2014 |
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| Flat A, 353, Wightman Road795 m away | 55 m² | 95 m² | +40 m² +73% | 2014 |
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| 42, Glenwood Road653 m away | 57 m² | 97 m² | +40 m² +70% | 2013 |
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| 50, Clarence Road986 m away | 80 m² | 120 m² | +40 m² +50% | 2012 |
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| 18, Belmont Avenue332 m away | 107 m² | 147 m² | +40 m² +37% | 2011 |
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| 99, Hewitt Road858 m away | 125 m² | 165 m² | +40 m² +32% | 2009 |
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| 21, Waldegrave Road421 m away | 107 m² | 146 m² | +39 m² +36% | 2026 |
|---|
| 23, Coleraine Road526 m away | 118 m² | 157 m² | +39 m² +33% | 2024 |
|---|
| 25, Belmont Avenue332 m away | 114 m² | 153 m² | +39 m² +34% | 2021 |
|---|
| 67, Raleigh Road467 m away | 128 m² | 167 m² | +39 m² +30% | 2020 |
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| 83, Willingdon Road493 m away | 46 m² | 85 m² | +39 m² +85% | 2020 |
|---|
| 40, Fairfax Road739 m away | 94 m² | 133 m² | +39 m² +41% | 2019 |
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| 153, Boundary Road535 m away | 102 m² | 140 m² | +38 m² +37% | 2026 |
|---|
| 119, Higham Road848 m away | 87 m² | 125 m² | +38 m² +44% | 2026 |
|---|
| 41, Willingdon Road411 m away | 111 m² | 149 m² | +38 m² +34% | 2025 |
|---|
| 79, Moselle Avenue872 m away | 85 m² | 123 m² | +38 m² +45% | 2024 |
|---|
| 73, Cranleigh Road895 m away | 81 m² | 119 m² | +38 m² +47% | 2023 |
|---|
| 325, Wightman Road795 m away | 126 m² | 164 m² | +38 m² +30% | 2022 |
|---|
| 53, Seymour Road995 m away | 125 m² | 163 m² | +38 m² +30% | 2020 |
|---|
| 43, Mannock Road160 m away | 92 m² | 130 m² | +38 m² +41% | 2019 |
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| 1, Caversham Road606 m away | 87 m² | 125 m² | +38 m² +44% | 2018 |
|---|
| Flat 1, 316, Philip Lane954 m away | 28 m² | 66 m² | +38 m² +136% | 2018 |
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| 69, Westbury Avenue407 m away | 32 m² | 70 m² | +38 m² +119% | 2017 |
|---|
| 37b, Burghley Road593 m away | 70 m² | 108 m² | +38 m² +54% | 2017 |
|---|
| 67, Seymour Road995 m away | 54 m² | 92 m² | +38 m² +70% | 2017 |
|---|
| 133b, Sydney Road527 m away | 41 m² | 79 m² | +38 m² +93% | 2015 |
|---|
| 82b, Sydney Road543 m away | 62 m² | 100 m² | +38 m² +61% | 2014 |
|---|
| 20, Clarendon Road633 m away | 75 m² | 112 m² | +37 m² +49% | 2026 |
|---|
| 137, Downhills Way810 m away | 103 m² | 140 m² | +37 m² +36% | 2022 |
|---|
| 89, Belmont Road421 m away | 119 m² | 156 m² | +37 m² +31% | 2021 |
|---|
| 26, Brampton Road931 m away | 102 m² | 139 m² | +37 m² +36% | 2021 |
|---|
| 19, Hewitt Road927 m away | 129 m² | 166 m² | +37 m² +29% | 2020 |
|---|
| 8, Frobisher Road729 m away | 115 m² | 152 m² | +37 m² +32% | 2018 |
|---|
| 7, Clarendon Road633 m away | 95 m² | 132 m² | +37 m² +39% | 2017 |
|---|
| 11, Hewitt Road927 m away | 122 m² | 159 m² | +37 m² +30% | 2016 |
|---|
| 93, Langham Road265 m away | 113 m² | 149 m² | +36 m² +32% | 2025 |
|---|
| 39, Avondale Road708 m away | 77 m² | 113 m² | +36 m² +47% | 2024 |
|---|
| 50, Fairfax Road739 m away | 92 m² | 128 m² | +36 m² +39% | 2023 |
|---|
| 30, Effingham Road778 m away | 104 m² | 140 m² | +36 m² +35% | 2022 |
|---|
| 18, Station Crescent958 m away | 75 m² | 111 m² | +36 m² +48% | 2022 |
|---|
| 65, Beresford Road808 m away | 93 m² | 129 m² | +36 m² +39% | 2021 |
|---|
| 87, Fairfax Road576 m away | 117 m² | 153 m² | +36 m² +31% | 2018 |
|---|
| 50, Lausanne Road642 m away | 69 m² | 105 m² | +36 m² +52% | 2018 |
|---|
| 463a, Lordship Lane902 m away | 57 m² | 93 m² | +36 m² +63% | 2018 |
|---|
| 5, Temple Terrace900 m away | 90 m² | 126 m² | +36 m² +40% | 2017 |
|---|
| 33, Clarendon Road633 m away | 97 m² | 133 m² | +36 m² +37% | 2016 |
|---|
| 8, Ripon Road894 m away | 77 m² | 113 m² | +36 m² +47% | 2012 |
|---|
| 77, Station Crescent960 m away | 74 m² | 110 m² | +36 m² +49% | 2010 |
|---|
| 147, Fairfax Road576 m away | 90 m² | 125 m² | +35 m² +39% | 2026 |
|---|
| 317, Wightman Road795 m away | 112 m² | 147 m² | +35 m² +31% | 2026 |
|---|
| 124, Farrant Avenue807 m away | 78 m² | 113 m² | +35 m² +45% | 2026 |
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