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 SE27 0JL
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 |
|---|---|---|---|---|
| 43, Crown Lane866 m away | 203 m² | 356 m² | +153 m² +75% | 2023 |
| 55, Chestnut Road627 m away | 99 m² | 222 m² | +123 m² +124% | 2022 |
| 29, Rockhampton Road586 m away | 80 m² | 198 m² | +118 m² +148% | 2015 |
| 28, Ryecroft Road959 m away | 154 m² | 269 m² | +115 m² +75% | 2016 |
| 244, Norwood Road882 m away | 115 m² | 214 m² | +99 m² +86% | 2022 |
| 6, Elder Road419 m away | 66 m² | 160 m² | +94 m² +142% | 2014 |
| 15, Bewlys Road399 m away | 110 m² | 203 m² | +93 m² +85% | 2025 |
| 6, Knollys Close696 m away | 83 m² | 175 m² | +92 m² +111% | 2022 |
| 5, Gipsy Road Gardens530 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.
| 85 m² |
| 176 m² |
| +91 m² +107% |
| 2014 |
| 75, Clive Road956 m away | 193 m² | 283 m² | +90 m² +47% | 2025 |
|---|
| Oxted Cottage, Rockhampton Road586 m away | 120 m² | 208 m² | +88 m² +73% | 2025 |
|---|
| 2, Ardlui Road758 m away | 178 m² | 266 m² | +88 m² +49% | 2011 |
|---|
| 10, Pyrmont Grove481 m away | 92 m² | 178 m² | +86 m² +93% | 2017 |
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| 17, Dassett Road498 m away | 79 m² | 160 m² | +81 m² +103% | 2020 |
|---|
| 24, Hainthorpe Road279 m away | 82 m² | 162 m² | +80 m² +98% | 2017 |
|---|
| 27, Chatsworth Way804 m away | 107 m² | 179 m² | +72 m² +67% | 2025 |
|---|
| 23a, Park Hall Road914 m away | 181 m² | 251 m² | +70 m² +39% | 2016 |
|---|
| 9, Selsdon Road362 m away | 93 m² | 158 m² | +65 m² +70% | 2020 |
|---|
| 44, Elder Road767 m away | 86 m² | 150 m² | +64 m² +74% | 2024 |
|---|
| 48, Knollys Road806 m away | 82 m² | 145 m² | +63 m² +77% | 2026 |
|---|
| 3, Darlington Road422 m away | 57 m² | 118 m² | +61 m² +107% | 2022 |
|---|
| 19, Dalton Street659 m away | 46 m² | 107 m² | +61 m² +133% | 2020 |
|---|
| 21, Eylewood Road650 m away | 80 m² | 140 m² | +60 m² +75% | 2026 |
|---|
| 2, Cambrian Close643 m away | 116 m² | 175 m² | +59 m² +51% | 2025 |
|---|
| 16, Knollys Road868 m away | 154 m² | 213 m² | +59 m² +38% | 2024 |
|---|
| Flat 2, 5, Martell Road883 m away | 42 m² | 101 m² | +59 m² +140% | 2024 |
|---|
| 37, Broxholm Road791 m away | 47 m² | 105 m² | +58 m² +123% | 2024 |
|---|
| 3, Pennington Close985 m away | 75 m² | 132 m² | +57 m² +76% | 2024 |
|---|
| 239, Leigham Court Road609 m away | 56 m² | 113 m² | +57 m² +102% | 2019 |
|---|
| 10, Glennie Road716 m away | 96 m² | 152 m² | +56 m² +58% | 2023 |
|---|
| 140, Rommany Road851 m away | 88 m² | 144 m² | +56 m² +64% | 2022 |
|---|
| 50, Egremont Road558 m away | 91 m² | 147 m² | +56 m² +62% | 2021 |
|---|
| 1b, Rosendale Road891 m away | 83 m² | 138 m² | +55 m² +66% | 2026 |
|---|
| 29, Eylewood Road650 m away | 80 m² | 135 m² | +55 m² +69% | 2021 |
|---|
| 63, Clive Road991 m away | 95 m² | 150 m² | +55 m² +58% | 2020 |
|---|
| 11, Cheviot Road378 m away | 105 m² | 159 m² | +54 m² +51% | 2023 |
|---|
| 28, Norwood Park Road776 m away | 86 m² | 140 m² | +54 m² +63% | 2019 |
|---|
| 20, Knights Hill301 m away | 40 m² | 94 m² | +54 m² +135% | 2018 |
|---|
| 29, St Julians Farm Road246 m away | 71 m² | 125 m² | +54 m² +76% | 2010 |
|---|
| 135, Thornlaw Road495 m away | 143 m² | 196 m² | +53 m² +37% | 2021 |
|---|
| 5, Lavengro Road968 m away | 92 m² | 144 m² | +52 m² +57% | 2025 |
|---|
| 61, Uffington Road538 m away | 87 m² | 139 m² | +52 m² +60% | 2020 |
|---|
| 156, Knights Hill232 m away | 74 m² | 126 m² | +52 m² +70% | 2016 |
|---|
| 411, Norwood Road952 m away | 101 m² | 152 m² | +51 m² +50% | 2022 |
|---|
| 193, Leigham Court Road908 m away | 44 m² | 95 m² | +51 m² +116% | 2021 |
|---|
| 14a, Chestnut Road556 m away | 108 m² | 159 m² | +51 m² +47% | 2015 |
|---|
| 55, Knollys Road871 m away | 59 m² | 110 m² | +51 m² +86% | 2011 |
|---|
| 405, Norwood Road952 m away | 103 m² | 153 m² | +50 m² +49% | 2026 |
|---|
| 55, Casewick Road254 m away | 139 m² | 189 m² | +50 m² +36% | 2025 |
|---|
| 45, Wolfington Road230 m away | 146 m² | 196 m² | +50 m² +34% | 2020 |
|---|
| 11, Hexham Road926 m away | 78 m² | 128 m² | +50 m² +64% | 2019 |
|---|
| 64, Selsdon Road351 m away | 137 m² | 187 m² | +50 m² +36% | 2017 |
|---|
| 297, Leigham Court Road679 m away | 137 m² | 186 m² | +49 m² +36% | 2026 |
|---|
| 95, Thurlestone Road402 m away | 40 m² | 89 m² | +49 m² +123% | 2025 |
|---|
| 17, Lancaster Avenue920 m away | 263 m² | 312 m² | +49 m² +19% | 2024 |
|---|
| 83, Clive Road956 m away | 95 m² | 144 m² | +49 m² +52% | 2011 |
|---|
| 162, Gipsy Road898 m away | 48 m² | 97 m² | +49 m² +102% | 2008 |
|---|
| 18, Lavengro Road943 m away | 102 m² | 150 m² | +48 m² +47% | 2023 |
|---|
| 36, Park Hall Road953 m away | 135 m² | 183 m² | +48 m² +36% | 2016 |
|---|
| 62, Tulsemere Road984 m away | 100 m² | 148 m² | +48 m² +48% | 2016 |
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| 18, Hexham Road897 m away | 102 m² | 149 m² | +47 m² +46% | 2025 |
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| 3, Lavengro Road968 m away | 106 m² | 153 m² | +47 m² +44% | 2025 |
|---|
| 12a, Lancaster Avenue794 m away | 90 m² | 136 m² | +46 m² +51% | 2024 |
|---|
| 118, Leigham Vale957 m away | 37 m² | 83 m² | +46 m² +124% | 2020 |
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| 94, Norwood High Street218 m away | 34 m² | 80 m² | +46 m² +135% | 2015 |
|---|
| 43, Knollys Road871 m away | 36 m² | 82 m² | +46 m² +128% | 2014 |
|---|
| 41, Eylewood Road650 m away | 86 m² | 131 m² | +45 m² +52% | 2025 |
|---|
| 89, Elder Road670 m away | 116 m² | 161 m² | +45 m² +39% | 2025 |
|---|
| 28, Crown Dale838 m away | 111 m² | 156 m² | +45 m² +41% | 2024 |
|---|
| 1, St Julians Farm Road70 m away | 149 m² | 194 m² | +45 m² +30% | 2023 |
|---|
| 50, Robson Road734 m away | 67 m² | 112 m² | +45 m² +67% | 2023 |
|---|
| 49, Rosendale Road917 m away | 55 m² | 100 m² | +45 m² +82% | 2023 |
|---|
| 25, Rockhampton Road586 m away | 76 m² | 121 m² | +45 m² +59% | 2021 |
|---|
| 339, Leigham Court Road796 m away | 141 m² | 185 m² | +44 m² +31% | 2026 |
|---|
| 46, Lavengro Road943 m away | 99 m² | 143 m² | +44 m² +44% | 2025 |
|---|
| 96, Thornlaw Road483 m away | 63 m² | 107 m² | +44 m² +70% | 2023 |
|---|
| 33, Royal Circus622 m away | 113 m² | 157 m² | +44 m² +39% | 2023 |
|---|
| Flat 2, Fern Lodge, Crown Lane891 m away | 42 m² | 86 m² | +44 m² +105% | 2023 |
|---|
| 125, Tivoli Road700 m away | 81 m² | 125 m² | +44 m² +54% | 2020 |
|---|
| 73, Clive Road956 m away | 95 m² | 138 m² | +43 m² +45% | 2025 |
|---|
| 69, Casewick Road254 m away | 130 m² | 173 m² | +43 m² +33% | 2023 |
|---|
| 37, Clive Road991 m away | 91 m² | 134 m² | +43 m² +47% | 2023 |
|---|
| 23, St Cloud Road626 m away | 89 m² | 132 m² | +43 m² +48% | 2021 |
|---|
| 54, Tritton Road832 m away | 114 m² | 157 m² | +43 m² +38% | 2019 |
|---|
| 106, Broxholm Road673 m away | 145 m² | 187 m² | +42 m² +29% | 2023 |
|---|
| 23, Casewick Road254 m away | 144 m² | 186 m² | +42 m² +29% | 2022 |
|---|
| 18, Bewlys Road399 m away | 116 m² | 158 m² | +42 m² +36% | 2022 |
|---|
| 57, Moore Road999 m away | 74 m² | 116 m² | +42 m² +57% | 2020 |
|---|
| 128, Knollys Road753 m away | 69 m² | 111 m² | +42 m² +61% | 2019 |
|---|
| 57, St Julian'S Farm Road246 m away | 149 m² | 191 m² | +42 m² +28% | 2016 |
|---|
| 32, Lavengro Road943 m away | 106 m² | 148 m² | +42 m² +40% | 2014 |
|---|
| 29a, Durban Road651 m away | 53 m² | 95 m² | +42 m² +79% | 2012 |
|---|
| 8, Windsor Close385 m away | 98 m² | 139 m² | +41 m² +42% | 2023 |
|---|
| 58, Cheviot Road394 m away | 123 m² | 163 m² | +40 m² +33% | 2023 |
|---|
| 52, Leigham Vale972 m away | 143 m² | 183 m² | +40 m² +28% | 2023 |
|---|
| 3, Cheviot Road378 m away | 110 m² | 150 m² | +40 m² +36% | 2022 |
|---|
| 100, Cheviot Road394 m away | 108 m² | 148 m² | +40 m² +37% | 2022 |
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| 51, Elder Road499 m away | 92 m² | 132 m² | +40 m² +43% | 2022 |
|---|
| 62, Dassett Road534 m away | 80 m² | 120 m² | +40 m² +50% | 2022 |
|---|
| 33, Ladas Road399 m away | 41 m² | 81 m² | +40 m² +98% | 2021 |
|---|
| 51b, Kingsmead Road973 m away | 122 m² | 162 m² | +40 m² +33% | 2016 |
|---|
| 237, Leigham Court Road609 m away | 117 m² | 156 m² | +39 m² +33% | 2023 |
|---|
| 12, Chancellor Grove923 m away | 75 m² | 114 m² | +39 m² +52% | 2022 |
|---|
| 9, Tritton Road832 m away | 113 m² | 152 m² | +39 m² +35% | 2019 |
|---|
| 54, Harpenden Road727 m away | 63 m² | 102 m² | +39 m² +62% | 2018 |
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| 146, Knights Hill232 m away | 32 m² | 71 m² | +39 m² +122% | 2015 |
|---|
| 14, Auckland Hill624 m away | 51 m² | 90 m² | +39 m² +76% | 2014 |
|---|
| 245, Leigham Court Road609 m away | 114 m² | 152 m² | +38 m² +33% | 2026 |
|---|
| 24, Glennie Road716 m away | 102 m² | 140 m² | +38 m² +37% | 2024 |
|---|
| 65, Moore Road999 m away | 84 m² | 122 m² | +38 m² +45% | 2023 |
|---|
| 13, Chestnut Road627 m away | 182 m² | 220 m² | +38 m² +21% | 2021 |
|---|
| 49, Wolfington Road230 m away | 126 m² | 164 m² | +38 m² +30% | 2020 |
|---|
| 29, Yeoman Close410 m away | 89 m² | 127 m² | +38 m² +43% | 2020 |
|---|
| 110, Casewick Road445 m away | 76 m² | 114 m² | +38 m² +50% | 2020 |
|---|
| 34, Wolfington Road115 m away | 47 m² | 85 m² | +38 m² +81% | 2013 |
|---|
| 9, Cheviot Road378 m away | 74 m² | 112 m² | +38 m² +51% | 2012 |
|---|
| 19, Valley Road951 m away | 100 m² | 137 m² | +37 m² +37% | 2024 |
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| 56, Harpenden Road727 m away | 150 m² | 187 m² | +37 m² +25% | 2020 |
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| 57, Glennie Road682 m away | 92 m² | 129 m² | +37 m² +40% | 2019 |
|---|
| 104, Cheviot Road394 m away | 108 m² | 144 m² | +36 m² +33% | 2026 |
|---|
| 37, Cheviot Road378 m away | 106 m² | 142 m² | +36 m² +34% | 2025 |
|---|
| Flat E, 193, Rommany Road793 m away | 34 m² | 70 m² | +36 m² +106% | 2023 |
|---|
| 31, Glennie Road682 m away | 95 m² | 131 m² | +36 m² +38% | 2022 |
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| 39, Crown Lane866 m away | 33 m² | 69 m² | +36 m² +109% | 2020 |
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| 49, Crown Lane866 m away | 202 m² | 238 m² | +36 m² +18% | 2018 |
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| Flat 2, 3, Hannen Road240 m away | 36 m² | 72 m² | +36 m² +100% | 2017 |
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| 32, Canterbury Grove447 m away | 83 m² | 119 m² | +36 m² +43% | 2017 |
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| 55, Tivoli Road492 m away | 67 m² | 102 m² | +35 m² +52% | 2026 |
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| 23, St Louis Road769 m away | 66 m² | 101 m² | +35 m² +53% | 2026 |
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| 74a, Wolfington Road241 m away | 83 m² | 118 m² | +35 m² +42% | 2025 |
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| 11, St Cloud Road626 m away | 102 m² | 137 m² | +35 m² +34% | 2025 |
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| 8, St Louis Road836 m away | 89 m² | 124 m² | +35 m² +39% | 2024 |
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| 71, Clive Road956 m away | 104 m² | 139 m² | +35 m² +34% | 2023 |
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| 117, Gipsy Road787 m away | 47 m² | 82 m² | +35 m² +74% | 2022 |
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| 137, Leigham Court Road996 m away | 136 m² | 171 m² | +35 m² +26% | 2022 |
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| 20, Champness Close855 m away | 73 m² | 108 m² | +35 m² +48% | 2021 |
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| 14, Waldeck Grove490 m away | 82 m² | 117 m² | +35 m² +43% | 2019 |
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| 47, Hamilton Road914 m away | 119 m² | 154 m² | +35 m² +29% | 2019 |
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| 55, Leigham Vale972 m away | 47 m² | 82 m² | +35 m² +74% | 2018 |
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| 200, Casewick Road445 m away | 85 m² | 120 m² | +35 m² +41% | 2017 |
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| 21, Ivymount Road636 m away | 94 m² | 129 m² | +35 m² +37% | 2016 |
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| 105, Tivoli Road700 m away | 84 m² | 119 m² | +35 m² +42% | 2016 |
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| 84a, Idmiston Road850 m away | 84 m² | 119 m² | +35 m² +42% | 2009 |
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| 10, Barston Road820 m away | 53 m² | 87 m² | +34 m² +64% | 2026 |
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| 26, Bloom Grove361 m away | 55 m² | 89 m² | +34 m² +62% | 2025 |
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| 25, St Cloud Road626 m away | 91 m² | 125 m² | +34 m² +37% | 2024 |
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| 46, Norwood High Street189 m away | 39 m² | 73 m² | +34 m² +87% | 2022 |
|---|
| 26a, Durban Road651 m away | 64 m² | 98 m² | +34 m² +53% | 2021 |
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| Flat 2, 75, Thornlaw Road187 m away | 68 m² | 102 m² | +34 m² +50% | 2019 |
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| Flat 1, 55, Wolfington Road230 m away | 49 m² | 83 m² | +34 m² +69% | 2016 |
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| 17, Hainthorpe Road308 m away | 144 m² | 178 m² | +34 m² +24% | 2011 |
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| 44, Dassett Road534 m away | 110 m² | 143 m² | +33 m² +30% | 2026 |
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| 15, Hubbard Road537 m away | 79 m² | 112 m² | +33 m² +42% | 2026 |
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| Flat 5, 40, Chestnut Road556 m away | 76 m² | 109 m² | +33 m² +43% | 2026 |
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| 58, Lamberhurst Road664 m away | 107 m² | 140 m² | +33 m² +31% | 2025 |
|---|
| 83, Thornlaw Road187 m away | 122 m² | 155 m² | +33 m² +27% | 2024 |
|---|
| 20, Waldeck Grove490 m away | 89 m² | 122 m² | +33 m² +37% | 2024 |
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| 68, Auckland Hill372 m away | 118 m² | 151 m² | +33 m² +28% | 2023 |
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| 91, Tivoli Road700 m away | 77 m² | 110 m² | +33 m² +43% | 2023 |
|---|
| 147, Tivoli Road700 m away | 76 m² | 109 m² | +33 m² +43% | 2023 |
|---|
| 119, Thornlaw Road495 m away | 96 m² | 129 m² | +33 m² +34% | 2022 |
|---|
| 129, Casewick Road511 m away | 109 m² | 142 m² | +33 m² +30% | 2022 |
|---|
| 12, Norwood Park Road776 m away | 88 m² | 121 m² | +33 m² +38% | 2022 |
|---|
| 107, Gipsy Road787 m away | 71 m² | 104 m² | +33 m² +46% | 2022 |
|---|
| 36, Crown Dale838 m away | 97 m² | 130 m² | +33 m² +34% | 2022 |
|---|
| 6, St Louis Road836 m away | 91 m² | 124 m² | +33 m² +36% | 2020 |
|---|
| 153, Clive Road979 m away | 60 m² | 93 m² | +33 m² +55% | 2016 |
|---|
| 66, Norwood Park Road776 m away | 85 m² | 118 m² | +33 m² +39% | 2014 |
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| 89, Clive Road956 m away | 140 m² | 173 m² | +33 m² +24% | 2014 |
|---|
| 50, Crown Dale867 m away | 90 m² | 123 m² | +33 m² +37% | 2012 |
|---|
| 34, Lamberhurst Road664 m away | 103 m² | 136 m² | +33 m² +32% | 2009 |
|---|
| 62, Ladas Road422 m away | 73 m² | 105 m² | +32 m² +44% | 2026 |
|---|
| 4, Ivymount Road636 m away | 122 m² | 154 m² | +32 m² +26% | 2026 |
|---|
| 96, Rommany Road851 m away | 74 m² | 106 m² | +32 m² +43% | 2026 |
|---|
| 18 Tina Court, 71, Knollys Road844 m away | 37 m² | 69 m² | +32 m² +86% | 2025 |
|---|
| 70, Valleyfield Road920 m away | 127 m² | 159 m² | +32 m² +25% | 2024 |
|---|
| 81, Casewick Road254 m away | 155 m² | 187 m² | +32 m² +21% | 2021 |
|---|
| 46, Cheviot Road394 m away | 95 m² | 127 m² | +32 m² +34% | 2021 |
|---|
| 91, Casewick Road511 m away | 97 m² | 129 m² | +32 m² +33% | 2019 |
|---|
| 12, Ryecroft Road959 m away | 148 m² | 180 m² | +32 m² +22% | 2016 |
|---|
| 61b, Rosendale Road917 m away | 87 m² | 119 m² | +32 m² +37% | 2011 |
|---|
| 29, Wolfington Road115 m away | 162 m² | 193 m² | +31 m² +19% | 2025 |
|---|
| 12, Rosendale Road949 m away | 146 m² | 177 m² | +31 m² +21% | 2022 |
|---|
| 104a, Thornlaw Road483 m away | 40 m² | 71 m² | +31 m² +78% | 2019 |
|---|
| 124, Canterbury Grove522 m away | 99 m² | 130 m² | +31 m² +31% | 2019 |
|---|
| 2, Dassett Road534 m away | 109 m² | 140 m² | +31 m² +28% | 2019 |
|---|
| 4, Vale Street806 m away | 95 m² | 126 m² | +31 m² +33% | 2015 |
|---|
| 89, Valleyfield Road870 m away | 145 m² | 176 m² | +31 m² +21% | 2013 |
|---|
| 90, Idmiston Road850 m away | 94 m² | 125 m² | +31 m² +33% | 2011 |
|---|
| 18, Elder Gardens539 m away | 43 m² | 74 m² | +31 m² +72% | 2010 |
|---|
| 4, Royal Circus513 m away | 95 m² | 125 m² | +30 m² +32% | 2024 |
|---|
| 74, Rosendale Road949 m away | 119 m² | 149 m² | +30 m² +25% | 2024 |
|---|
| Flat 3, Fern Lodge, Crown Lane891 m away | 42 m² | 72 m² | +30 m² +71% | 2023 |
|---|
| 16, Dalton Street659 m away | 24 m² | 54 m² | +30 m² +125% | 2022 |
|---|
| 48, Robson Road734 m away | 65 m² | 95 m² | +30 m² +46% | 2022 |
|---|
| 30, Canterbury Grove447 m away | 87 m² | 117 m² | +30 m² +34% | 2020 |
|---|
| 121, Casewick Road511 m away | 100 m² | 130 m² | +30 m² +30% | 2018 |
|---|
| Flat B, 49, Broxholm Road791 m away | 55 m² | 85 m² | +30 m² +55% | 2016 |
|---|
| 77, Thurlestone Road402 m away | 146 m² | 176 m² | +30 m² +21% | 2012 |
|---|
| 17, Waldeck Grove490 m away | 82 m² | 112 m² | +30 m² +37% | 2012 |
|---|