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 RG9 1TD
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 |
|---|---|---|---|---|
| 4, Parkside663 m away | 311 m² | 497 m² | +186 m² +60% | 2026 |
| 71, Kings Road691 m away | 134 m² | 301 m² | +167 m² +125% | 2018 |
| 28, Western Road796 m away | 145 m² | 307 m² | +162 m² +112% | 2026 |
| The Walled Garden, Bell Lane871 m away | 174 m² | 334 m² | +160 m² +92% | 2022 |
| 1, Cromwell Close616 m away | 94 m² | 227 m² | +133 m² +141% | 2026 |
| Grovelands, St Andrews Road767 m away | 133 m² | 262 m² | +129 m² +97% | 2014 |
| 77, St Marks Road443 m away | 83 m² | 205 m² | +122 m² +147% | 2018 |
| 82, St Andrews Road618 m away | 160 m² | 279 m² | +119 m² +74% | 2016 |
| 72a, St Marks Road420 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.
| 102 m² |
| 220 m² |
| +118 m² +116% |
| 2014 |
| Field House, 43, Deanfield Avenue185 m away | 209 m² | 325 m² | +116 m² +56% | 2024 |
|---|
| Hillcrest, Peppard Lane987 m away | 113 m² | 222 m² | +109 m² +96% | 2025 |
|---|
| 72, St Marks Road420 m away | 121 m² | 225 m² | +104 m² +86% | 2014 |
|---|
| 36, Perpetual House, Station Road437 m away | 87 m² | 187 m² | +100 m² +115% | 2020 |
|---|
| Appletree Lodge, Normanstead281 m away | 161 m² | 260 m² | +99 m² +61% | 2015 |
|---|
| 73, Blandy Road960 m away | 128 m² | 226 m² | +98 m² +77% | 2021 |
|---|
| 14, Kings Road502 m away | 100 m² | 192 m² | +92 m² +92% | 2013 |
|---|
| 45, Berkshire Road917 m away | 159 m² | 249 m² | +90 m² +57% | 2019 |
|---|
| 48, Berkshire Road762 m away | 91 m² | 180 m² | +89 m² +98% | 2024 |
|---|
| 46, Cromwell Road759 m away | 141 m² | 229 m² | +88 m² +62% | 2025 |
|---|
| 55, St Marks Road443 m away | 126 m² | 214 m² | +88 m² +70% | 2022 |
|---|
| 2, St Andrews Road458 m away | 102 m² | 187 m² | +85 m² +83% | 2016 |
|---|
| 11, St Marks Road373 m away | 126 m² | 210 m² | +84 m² +67% | 2025 |
|---|
| 14, Wilson Avenue880 m away | 71 m² | 155 m² | +84 m² +118% | 2018 |
|---|
| 28, Coldharbour Close843 m away | 163 m² | 243 m² | +80 m² +49% | 2020 |
|---|
| 22, Belle Vue Road771 m away | 107 m² | 185 m² | +78 m² +73% | 2020 |
|---|
| Flat 1, 3, River Terrace480 m away | 62 m² | 138 m² | +76 m² +123% | 2026 |
|---|
| 34, Western Road796 m away | 157 m² | 233 m² | +76 m² +48% | 2021 |
|---|
| 27, Belle Vue Road763 m away | 94 m² | 166 m² | +72 m² +77% | 2020 |
|---|
| 88, Kings Road637 m away | 134 m² | 205 m² | +71 m² +53% | 2015 |
|---|
| 54, Berkshire Road917 m away | 145 m² | 213 m² | +68 m² +47% | 2019 |
|---|
| 18, Haywards Close460 m away | 112 m² | 179 m² | +67 m² +60% | 2018 |
|---|
| 56, Greys Hill57 m away | 89 m² | 155 m² | +66 m² +74% | 2015 |
|---|
| 4, Wootton Road918 m away | 161 m² | 226 m² | +65 m² +40% | 2024 |
|---|
| 11, Vicarage Road309 m away | 125 m² | 190 m² | +65 m² +52% | 2014 |
|---|
| 4, Walton Avenue565 m away | 132 m² | 196 m² | +64 m² +48% | 2022 |
|---|
| Flat 1, 74, St Marks Road420 m away | 130 m² | 191 m² | +61 m² +47% | 2020 |
|---|
| 76, Greys Road79 m away | 54 m² | 115 m² | +61 m² +113% | 2017 |
|---|
| 12, Cooper Road902 m away | 127 m² | 188 m² | +61 m² +48% | 2016 |
|---|
| 15, Cromwell Road759 m away | 98 m² | 157 m² | +59 m² +60% | 2011 |
|---|
| Landfall, St Andrews Road797 m away | 257 m² | 313 m² | +56 m² +22% | 2016 |
|---|
| 51, Upton Close486 m away | 44 m² | 98 m² | +54 m² +123% | 2023 |
|---|
| 69, St Marks Road443 m away | 197 m² | 251 m² | +54 m² +27% | 2022 |
|---|
| 31, Greys Road237 m away | 213 m² | 266 m² | +53 m² +25% | 2019 |
|---|
| 39, Berkshire Road917 m away | 124 m² | 177 m² | +53 m² +43% | 2013 |
|---|
| 20a, Niagara Road772 m away | 62 m² | 113 m² | +51 m² +82% | 2026 |
|---|
| 19, St Andrews Road500 m away | 86 m² | 137 m² | +51 m² +59% | 2024 |
|---|
| 18, Valley Road948 m away | 86 m² | 137 m² | +51 m² +59% | 2018 |
|---|
| 45, St Andrews Road541 m away | 151 m² | 201 m² | +50 m² +33% | 2020 |
|---|
| 209, Greys Road515 m away | 42 m² | 92 m² | +50 m² +119% | 2017 |
|---|
| 38, Queen Street346 m away | 134 m² | 183 m² | +49 m² +37% | 2025 |
|---|
| 9, Baronsmead745 m away | 145 m² | 194 m² | +49 m² +34% | 2024 |
|---|
| Rupert Cottage, Rupert Close856 m away | 206 m² | 255 m² | +49 m² +24% | 2022 |
|---|
| 12, Coldharbour Close843 m away | 116 m² | 165 m² | +49 m² +42% | 2021 |
|---|
| 90, Northfield End911 m away | 93 m² | 142 m² | +49 m² +53% | 2021 |
|---|
| 67, Kings Road691 m away | 118 m² | 166 m² | +48 m² +41% | 2023 |
|---|
| 31, Belle Vue Road763 m away | 157 m² | 205 m² | +48 m² +31% | 2023 |
|---|
| 56, Deanfield Road479 m away | 101 m² | 149 m² | +48 m² +48% | 2015 |
|---|
| 4, Ravenscroft Road647 m away | 124 m² | 170 m² | +46 m² +37% | 2025 |
|---|
| 31a, Deanfield Avenue185 m away | 136 m² | 181 m² | +45 m² +33% | 2023 |
|---|
| 4, Cooper Road902 m away | 72 m² | 117 m² | +45 m² +63% | 2023 |
|---|
| 24, Queen Street346 m away | 90 m² | 134 m² | +44 m² +49% | 2025 |
|---|
| 2, Norman Avenue192 m away | 176 m² | 220 m² | +44 m² +25% | 2023 |
|---|
| 70, St Marks Road420 m away | 121 m² | 165 m² | +44 m² +36% | 2020 |
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| 162, Greys Road998 m away | 191 m² | 234 m² | +43 m² +23% | 2020 |
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| 30, Crisp Road841 m away | 44 m² | 87 m² | +43 m² +98% | 2009 |
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| 131, Reading Road552 m away | 87 m² | 129 m² | +42 m² +48% | 2025 |
|---|
| 71, St Andrews Road767 m away | 177 m² | 219 m² | +42 m² +24% | 2022 |
|---|
| 6, Western Road640 m away | 183 m² | 225 m² | +42 m² +23% | 2016 |
|---|
| 9, Haywards Close460 m away | 112 m² | 153 m² | +41 m² +37% | 2026 |
|---|
| 18, St Andrews Road463 m away | 208 m² | 249 m² | +41 m² +20% | 2025 |
|---|
| 26, Niagara Road772 m away | 76 m² | 116 m² | +40 m² +53% | 2023 |
|---|
| 39, St Marks Road443 m away | 176 m² | 215 m² | +39 m² +22% | 2015 |
|---|
| 13, Baronsmead745 m away | 93 m² | 132 m² | +39 m² +42% | 2014 |
|---|
| 17, Haywards Close460 m away | 115 m² | 153 m² | +38 m² +33% | 2024 |
|---|
| Bell Street House, 84, Bell Street664 m away | 106 m² | 144 m² | +38 m² +36% | 2021 |
|---|
| 50, Wilson Avenue880 m away | 35 m² | 72 m² | +37 m² +106% | 2024 |
|---|
| 8, Wyndale Close411 m away | 89 m² | 126 m² | +37 m² +42% | 2020 |
|---|
| 29, Leaver Road416 m away | 35 m² | 72 m² | +37 m² +106% | 2014 |
|---|
| Magnolia Cottage, Northfield End911 m away | 176 m² | 212 m² | +36 m² +20% | 2022 |
|---|
| Highlands, St Andrews Road767 m away | 223 m² | 259 m² | +36 m² +16% | 2014 |
|---|
| 8, Wilson Avenue880 m away | 84 m² | 119 m² | +35 m² +42% | 2024 |
|---|
| 10, Gravel Hill321 m away | 72 m² | 107 m² | +35 m² +49% | 2023 |
|---|
| 38, King James Way753 m away | 75 m² | 110 m² | +35 m² +47% | 2023 |
|---|
| 8, Norman Avenue192 m away | 218 m² | 253 m² | +35 m² +16% | 2020 |
|---|
| 12, Kings Road502 m away | 109 m² | 144 m² | +35 m² +32% | 2020 |
|---|
| 74, Greys Road79 m away | 56 m² | 91 m² | +35 m² +63% | 2012 |
|---|
| 136a, Greys Road998 m away | 122 m² | 156 m² | +34 m² +28% | 2024 |
|---|
| 87, St Andrews Road899 m away | 158 m² | 192 m² | +34 m² +22% | 2021 |
|---|
| 47, Deanfield Road225 m away | 121 m² | 155 m² | +34 m² +28% | 2015 |
|---|
| 23, Luker Avenue854 m away | 81 m² | 115 m² | +34 m² +42% | 2014 |
|---|
| 34, Kings Road502 m away | 99 m² | 132 m² | +33 m² +33% | 2025 |
|---|
| 30, Thamesfield, Wargrave Road761 m away | 35 m² | 68 m² | +33 m² +94% | 2024 |
|---|
| 22, Western Road640 m away | 134 m² | 167 m² | +33 m² +25% | 2023 |
|---|
| 99, Deanfield Road479 m away | 126 m² | 159 m² | +33 m² +26% | 2021 |
|---|
| 55, St Andrews Road621 m away | 193 m² | 226 m² | +33 m² +17% | 2019 |
|---|
| 88, Vicarage Road779 m away | 126 m² | 159 m² | +33 m² +26% | 2014 |
|---|
| 10, St Marks Road343 m away | 110 m² | 143 m² | +33 m² +30% | 2012 |
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| 16, Berkshire Road762 m away | 144 m² | 176 m² | +32 m² +22% | 2023 |
|---|
| 34, Valley Road948 m away | 132 m² | 164 m² | +32 m² +24% | 2021 |
|---|
| 174, Greys Road998 m away | 74 m² | 106 m² | +32 m² +43% | 2021 |
|---|
| 9, Vicarage Road309 m away | 151 m² | 183 m² | +32 m² +21% | 2018 |
|---|
| 66, West Street353 m away | 60 m² | 92 m² | +32 m² +53% | 2018 |
|---|
| 2, Acacia House, Ancastle Green481 m away | 33 m² | 65 m² | +32 m² +97% | 2015 |
|---|
| 64, Greys Road79 m away | 87 m² | 118 m² | +31 m² +36% | 2026 |
|---|
| 20, Haywards Close460 m away | 121 m² | 152 m² | +31 m² +26% | 2022 |
|---|
| 1, Boston Road727 m away | 75 m² | 106 m² | +31 m² +41% | 2020 |
|---|
| 35, Kings Road514 m away | 65 m² | 96 m² | +31 m² +48% | 2019 |
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| 35, Friday Street392 m away | 54 m² | 85 m² | +31 m² +57% | 2016 |
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| 79, Kings Road691 m away | 132 m² | 163 m² | +31 m² +23% | 2015 |
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| 33, Kings Road514 m away | 66 m² | 96 m² | +30 m² +45% | 2026 |
|---|
| 11, Marmion Road609 m away | 98 m² | 128 m² | +30 m² +31% | 2026 |
|---|
| 41, Valley Road895 m away | 176 m² | 206 m² | +30 m² +17% | 2025 |
|---|
| 50, St Marks Road420 m away | 185 m² | 215 m² | +30 m² +16% | 2023 |
|---|
| 8, Grove Road615 m away | 68 m² | 98 m² | +30 m² +44% | 2021 |
|---|
| 29, Gainsborough Hill527 m away | 95 m² | 125 m² | +30 m² +32% | 2019 |
|---|
| 186, Reading Road805 m away | 94 m² | 124 m² | +30 m² +32% | 2019 |
|---|
| 10, Hamilton Avenue275 m away | 156 m² | 186 m² | +30 m² +19% | 2018 |
|---|
| 14, Queen Street346 m away | 104 m² | 134 m² | +30 m² +29% | 2018 |
|---|
| 92, Reading Road652 m away | 98 m² | 128 m² | +30 m² +31% | 2014 |
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| 41, Luker Avenue991 m away | 80 m² | 109 m² | +29 m² +36% | 2025 |
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| 20, Manor Road897 m away | 89 m² | 118 m² | +29 m² +33% | 2023 |
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| 39, Milton Close312 m away | 100 m² | 129 m² | +29 m² +29% | 2022 |
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| 155, Reading Road680 m away | 126 m² | 155 m² | +29 m² +23% | 2021 |
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| 15, Vicarage Road309 m away | 153 m² | 182 m² | +29 m² +19% | 2016 |
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| 29, The Close385 m away | 67 m² | 95 m² | +28 m² +42% | 2023 |
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| 65, Valley Road895 m away | 118 m² | 146 m² | +28 m² +24% | 2021 |
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| 26, Duke Street328 m away | 47 m² | 75 m² | +28 m² +60% | 2020 |
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| 34, St Andrews Road463 m away | 159 m² | 187 m² | +28 m² +18% | 2017 |
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| 32, Albert Road195 m away | 60 m² | 88 m² | +28 m² +47% | 2014 |
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| 37, Greys Road237 m away | 137 m² | 164 m² | +27 m² +20% | 2026 |
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| 39, St Andrews Road541 m away | 142 m² | 169 m² | +27 m² +19% | 2026 |
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| 5, Boston Road727 m away | 62 m² | 89 m² | +27 m² +44% | 2024 |
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| 6, Harcourt Close467 m away | 153 m² | 180 m² | +27 m² +18% | 2023 |
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| 25, Western Avenue699 m away | 95 m² | 122 m² | +27 m² +28% | 2022 |
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| 11, Luker Avenue854 m away | 54 m² | 81 m² | +27 m² +50% | 2018 |
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| 10, Radnor Close714 m away | 141 m² | 168 m² | +27 m² +19% | 2013 |
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| 54b, Friday Street388 m away | 43 m² | 69 m² | +26 m² +60% | 2024 |
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| 79, Crisp Road842 m away | 80 m² | 106 m² | +26 m² +33% | 2024 |
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| 10, Grange Road640 m away | 93 m² | 119 m² | +26 m² +28% | 2023 |
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| 18, Greys Hill57 m away | 50 m² | 76 m² | +26 m² +52% | 2019 |
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| 112, Reading Road652 m away | 103 m² | 129 m² | +26 m² +25% | 2015 |
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| Mia, Western Avenue699 m away | 96 m² | 122 m² | +26 m² +27% | 2015 |
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| 14, Upton Close456 m away | 86 m² | 111 m² | +25 m² +29% | 2026 |
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| Tikgehill House, 23, Northfield End762 m away | 125 m² | 150 m² | +25 m² +20% | 2026 |
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| 14, Leicester Close843 m away | 155 m² | 180 m² | +25 m² +16% | 2024 |
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| Holly Lodge, Norman Avenue192 m away | 80 m² | 105 m² | +25 m² +31% | 2022 |
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| 231, Greys Road757 m away | 159 m² | 184 m² | +25 m² +16% | 2020 |
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| 20b, Queen Street346 m away | 146 m² | 171 m² | +25 m² +17% | 2019 |
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| 47, King James Way753 m away | 67 m² | 91 m² | +24 m² +36% | 2026 |
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| 160, Reading Road805 m away | 115 m² | 139 m² | +24 m² +21% | 2026 |
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| 62, Deanfield Road479 m away | 140 m² | 164 m² | +24 m² +17% | 2022 |
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| 3, Beech House, Ancastle Green493 m away | 62 m² | 86 m² | +24 m² +39% | 2015 |
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| 44, Ancastle Green439 m away | 79 m² | 102 m² | +23 m² +29% | 2026 |
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| 3, Cromwell Close616 m away | 113 m² | 136 m² | +23 m² +20% | 2025 |
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| 1, Baronsmead745 m away | 81 m² | 104 m² | +23 m² +28% | 2025 |
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| 25, Belle Vue Road763 m away | 116 m² | 139 m² | +23 m² +20% | 2025 |
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| 11, Kings Close444 m away | 91 m² | 114 m² | +23 m² +25% | 2024 |
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| 6, Periam Close836 m away | 58 m² | 81 m² | +23 m² +40% | 2013 |
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| 26, Deanfield Road225 m away | 134 m² | 157 m² | +23 m² +17% | 2010 |
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| 7, Kings Close444 m away | 93 m² | 115 m² | +22 m² +24% | 2025 |
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| 54, Upton Close486 m away | 109 m² | 131 m² | +22 m² +20% | 2024 |
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| 14, Albert Road195 m away | 91 m² | 113 m² | +22 m² +24% | 2023 |
|---|
| 43, Gainsborough Road493 m away | 73 m² | 95 m² | +22 m² +30% | 2023 |
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| 18, Gainsborough Road563 m away | 79 m² | 101 m² | +22 m² +28% | 2022 |
|---|
| 17, Niagara Road772 m away | 63 m² | 85 m² | +22 m² +35% | 2022 |
|---|
| 16, Park Road584 m away | 64 m² | 86 m² | +22 m² +34% | 2020 |
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| 8, Leaver Road416 m away | 42 m² | 64 m² | +22 m² +52% | 2019 |
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| 78, New Street589 m away | 63 m² | 85 m² | +22 m² +35% | 2019 |
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| 9, Niagara Road772 m away | 72 m² | 94 m² | +22 m² +31% | 2019 |
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| 14, St Marks Road343 m away | 99 m² | 121 m² | +22 m² +22% | 2016 |
|---|
| 12, Grange Road640 m away | 93 m² | 115 m² | +22 m² +24% | 2016 |
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| 15, Valley Road895 m away | 89 m² | 111 m² | +22 m² +25% | 2015 |
|---|
| 8, Greys Hill57 m away | 50 m² | 72 m² | +22 m² +44% | 2012 |
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| 10, Damer Gardens597 m away | 99 m² | 120 m² | +21 m² +21% | 2026 |
|---|
| 15, Albert Road195 m away | 79 m² | 100 m² | +21 m² +27% | 2022 |
|---|
| 2, Lime Court580 m away | 76 m² | 97 m² | +21 m² +28% | 2021 |
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| 20, Western Avenue699 m away | 81 m² | 102 m² | +21 m² +26% | 2020 |
|---|
| 152, Reading Road805 m away | 90 m² | 111 m² | +21 m² +23% | 2019 |
|---|
| 78, Kings Road637 m away | 131 m² | 152 m² | +21 m² +16% | 2017 |
|---|
| 155, Greys Road219 m away | 68 m² | 89 m² | +21 m² +31% | 2015 |
|---|
| 11, Singers Close451 m away | 90 m² | 111 m² | +21 m² +23% | 2014 |
|---|
| 32, Adam Court625 m away | 83 m² | 104 m² | +21 m² +25% | 2014 |
|---|
| 5, Sherwood Gardens778 m away | 57 m² | 78 m² | +21 m² +37% | 2014 |
|---|
| 49, Gravel Hill291 m away | 29 m² | 50 m² | +21 m² +72% | 2011 |
|---|
| 19, Gainsborough Road568 m away | 75 m² | 95 m² | +20 m² +27% | 2014 |
|---|
| 5, Deanfield Avenue185 m away | 106 m² | 126 m² | +20 m² +19% | 2013 |
|---|
| 29, Damer Gardens597 m away | 112 m² | 131 m² | +19 m² +17% | 2024 |
|---|
| 34, Wilson Avenue880 m away | 87 m² | 106 m² | +19 m² +22% | 2023 |
|---|
| 51, Luker Avenue991 m away | 64 m² | 83 m² | +19 m² +30% | 2023 |
|---|
| 41, Kings Road514 m away | 75 m² | 94 m² | +19 m² +25% | 2021 |
|---|
| 4, Acacia House, Ancastle Green481 m away | 66 m² | 85 m² | +19 m² +29% | 2015 |
|---|
| 51, Kings Road514 m away | 87 m² | 106 m² | +19 m² +22% | 2015 |
|---|
| 6, Kings Close444 m away | 86 m² | 105 m² | +19 m² +22% | 2014 |
|---|
| 8, Ruperts Lane793 m away | 120 m² | 139 m² | +19 m² +16% | 2013 |
|---|
| 7, Greys Hill245 m away | 90 m² | 108 m² | +18 m² +20% | 2026 |
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| The Tin Store, 1b, Niagara Road772 m away | 65 m² | 83 m² | +18 m² +28% | 2022 |
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| 56, Kings Road502 m away | 65 m² | 83 m² | +18 m² +28% | 2021 |
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| Percy Cottage, 56, Market Place313 m away | 78 m² | 96 m² | +18 m² +23% | 2020 |
|---|
| 5, Walton Avenue565 m away | 88 m² | 106 m² | +18 m² +20% | 2019 |
|---|
| 13, Manor Road787 m away | 93 m² | 111 m² | +18 m² +19% | 2018 |
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