Finding extended homes…
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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 BH4 8BD
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 |
|---|---|---|---|---|
| 34, West Overcliff Drive486 m away | 403 m² | 608 m² | +205 m² +51% | 2011 |
| 20a, West Overcliff Drive216 m away | 190 m² | 315 m² | +125 m² +66% | 2026 |
| 140, Alumhurst Road793 m away | 160 m² | 262 m² | +102 m² +64% | 2023 |
| 99a, Alumhurst Road722 m away | 97 m² | 189 m² | +92 m² +95% | 2022 |
| 20, Cassel Avenue947 m away | 217 m² | 292 m² | +75 m² +35% | 2024 |
| 19, Alumdale Road660 m away | 128 m² | 199 m² | +71 m² +55% | 2023 |
| 18, Branksome Dene Road873 m away | 142 m² | 213 m² | +71 m² +50% | 2011 |
| Flat 8, 48, Surrey Road932 m away | 63 m² | 132 m² | +69 m² +110% | 2013 |
| 63, Alumhurst Road782 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.
| 136 m² |
| 200 m² |
| +64 m² +47% |
| 2021 |
| Flat 3, Kerley Court, 3, Kerley Road779 m away | 89 m² | 153 m² | +64 m² +72% | 2015 |
|---|
| 23, Wharfdale Road750 m away | 149 m² | 210 m² | +61 m² +41% | 2015 |
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| 43a, West Cliff Road434 m away | 122 m² | 178 m² | +56 m² +46% | 2015 |
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| 38, Burnaby Road663 m away | 123 m² | 177 m² | +54 m² +44% | 2026 |
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| 33b, Alumhurst Road863 m away | 93 m² | 147 m² | +54 m² +58% | 2026 |
|---|
| Flat 2, 30, R L Stevenson Avenue847 m away | 128 m² | 181 m² | +53 m² +41% | 2014 |
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| 9, Herbert Road895 m away | 233 m² | 286 m² | +53 m² +23% | 2014 |
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| 16, Alumdale Road660 m away | 152 m² | 203 m² | +51 m² +34% | 2017 |
|---|
| 9, Cassel Avenue848 m away | 197 m² | 247 m² | +50 m² +25% | 2021 |
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| Flat 7, 19, Mckinley Road294 m away | 143 m² | 192 m² | +49 m² +34% | 2025 |
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| Flat 1, 26, Westbourne Park Road954 m away | 88 m² | 136 m² | +48 m² +55% | 2017 |
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| 14, Mountbatten Road924 m away | 184 m² | 230 m² | +46 m² +25% | 2018 |
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| 53, Alumhurst Road782 m away | 139 m² | 185 m² | +46 m² +33% | 2014 |
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| Flat 23, The Pantechnicon, 2, Seamoor Road828 m away | 50 m² | 95 m² | +45 m² +90% | 2024 |
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| 2, Branksome Dene Road873 m away | 164 m² | 208 m² | +44 m² +27% | 2019 |
|---|
| 6, South View Place580 m away | 33 m² | 76 m² | +43 m² +130% | 2013 |
|---|
| Flat 19, Cedar Manor, 19 - 21, Poole Road495 m away | 95 m² | 137 m² | +42 m² +44% | 2026 |
|---|
| 17, Purbeck Road613 m away | 178 m² | 219 m² | +41 m² +23% | 2016 |
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| Flat 6, 9, Alumhurst Road935 m away | 34 m² | 75 m² | +41 m² +121% | 2012 |
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| 2, Clarendon Road383 m away | 120 m² | 160 m² | +40 m² +33% | 2025 |
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| Cellar Bar, 73, Seamoor Road987 m away | 65 m² | 105 m² | +40 m² +62% | 2008 |
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| 81, Alumhurst Road722 m away | 135 m² | 174 m² | +39 m² +29% | 2020 |
|---|
| Flat 2, Westcliff Apartments, 131, West Hill Road629 m away | 67 m² | 106 m² | +39 m² +58% | 2010 |
|---|
| Flat 1, 10, Mckinley Road389 m away | 152 m² | 190 m² | +38 m² +25% | 2023 |
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| Flat 8, Clive Court, 23, Marlborough Road521 m away | 49 m² | 87 m² | +38 m² +78% | 2021 |
|---|
| 15, Chine Grange, 8, Chine Crescent Road158 m away | 46 m² | 83 m² | +37 m² +80% | 2025 |
|---|
| 23, Queens Road552 m away | 29 m² | 66 m² | +37 m² +128% | 2019 |
|---|
| Apartment 5, Aquarius, 95, St Michaels Road735 m away | 38 m² | 73 m² | +35 m² +92% | 2021 |
|---|
| Flat 5, West Cliff House, 45, West Cliff Road434 m away | 52 m² | 87 m² | +35 m² +67% | 2013 |
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| Flat 1, 2, Bradburne Road821 m away | 30 m² | 64 m² | +34 m² +113% | 2016 |
|---|
| Flat 11, Chine Reach, 15, Warren Road744 m away | 52 m² | 86 m² | +34 m² +65% | 2011 |
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| Flat 10, Broadlands, 10, Marlborough Road393 m away | 55 m² | 88 m² | +33 m² +60% | 2023 |
|---|
| Flat 30, Tollard Court, West Hill Road715 m away | 85 m² | 117 m² | +32 m² +38% | 2019 |
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| Flat 14, Parkgate Manor, 8, Suffolk Road710 m away | 42 m² | 74 m² | +32 m² +76% | 2016 |
|---|
| 9, Alum Chine Road773 m away | 106 m² | 138 m² | +32 m² +30% | 2014 |
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| 4, Branksome Dene Road873 m away | 163 m² | 195 m² | +32 m² +20% | 2014 |
|---|
| 4 St. Michaels Mews, St Michaels Lane681 m away | 94 m² | 126 m² | +32 m² +34% | 2011 |
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| 1, Granville Mews, 22a, Alum Chine Road780 m away | 62 m² | 93 m² | +31 m² +50% | 2023 |
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| 3, Isabel Court, 7, Cambridge Road615 m away | 39 m² | 70 m² | +31 m² +79% | 2013 |
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| 6, Hampton Lodge, 23, Poole Road526 m away | 58 m² | 89 m² | +31 m² +53% | 2012 |
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| Flat 11, Court View, 2, Branksome Wood Road948 m away | 74 m² | 104 m² | +30 m² +41% | 2019 |
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| Flat 31, Grand Marine Court, Durley Gardens400 m away | 42 m² | 72 m² | +30 m² +71% | 2018 |
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| 32, Purbeck Road613 m away | 158 m² | 188 m² | +30 m² +19% | 2016 |
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| Flat 2, Parkgate Manor, 8, Suffolk Road710 m away | 41 m² | 71 m² | +30 m² +73% | 2016 |
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| Flat 1, Chinebridge, 37, Beaulieu Road680 m away | 88 m² | 118 m² | +30 m² +34% | 2010 |
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| 38, Purbeck Road613 m away | 166 m² | 195 m² | +29 m² +17% | 2022 |
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| Flat 2, Alum Chine View, 12, Studland Road585 m away | 54 m² | 83 m² | +29 m² +54% | 2021 |
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| Flat 1, 7, Alum Chine Road773 m away | 88 m² | 117 m² | +29 m² +33% | 2014 |
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| Flat 2, 6, Pembroke Road888 m away | 38 m² | 66 m² | +28 m² +74% | 2025 |
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| Flat 7, Lythe Place, 22, West Overcliff Drive216 m away | 64 m² | 92 m² | +28 m² +44% | 2022 |
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| 33c, Alumhurst Road863 m away | 96 m² | 124 m² | +28 m² +29% | 2017 |
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| 3, West Hill Road497 m away | 70 m² | 97 m² | +27 m² +39% | 2025 |
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| Flat 4, Stevenson Court, 11, R L Stevenson Avenue913 m away | 23 m² | 50 m² | +27 m² +117% | 2025 |
|---|
| Flat 2, The Chines, 18, Mckinley Road299 m away | 126 m² | 153 m² | +27 m² +21% | 2019 |
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| Flat 6, Parkgate Manor, 8, Suffolk Road710 m away | 37 m² | 64 m² | +27 m² +73% | 2016 |
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| Flat 5, The Peak, 64 - 68, Norwich Avenue West556 m away | 42 m² | 68 m² | +26 m² +62% | 2025 |
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| Flat 3, Alum Towers, 50, Alumhurst Road902 m away | 45 m² | 71 m² | +26 m² +58% | 2022 |
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| Flat 17, Durley Chine Court, 36, West Cliff Road248 m away | 105 m² | 131 m² | +26 m² +25% | 2021 |
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| Flat 4, Wilton House, 4, Alum Chine Road840 m away | 57 m² | 83 m² | +26 m² +46% | 2015 |
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| Flat 3, 54, Alum Chine Road884 m away | 64 m² | 90 m² | +26 m² +41% | 2013 |
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| Flat 1, Mildenhall, 25, West Cliff Road30 m away | 61 m² | 86 m² | +25 m² +41% | 2024 |
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| Flat 1, Pine Tree Court, 6, Pine Tree Glen761 m away | 64 m² | 89 m² | +25 m² +39% | 2012 |
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| 2e, Branksome Wood Road948 m away | 127 m² | 151 m² | +24 m² +19% | 2025 |
|---|
| 12, Herbert Road895 m away | 145 m² | 169 m² | +24 m² +17% | 2023 |
|---|
| Flat 18, Chine Mansions, 6, Chine Crescent Road113 m away | 63 m² | 87 m² | +24 m² +38% | 2019 |
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| 1, Upper Terrace Road803 m away | 42 m² | 66 m² | +24 m² +57% | 2018 |
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| Flat 8, Wilton House, 4, Alum Chine Road840 m away | 64 m² | 88 m² | +24 m² +38% | 2015 |
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| Flat 18, Crescent Court, 33, Chine Crescent269 m away | 72 m² | 96 m² | +24 m² +33% | 2013 |
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| Flat 1, 16, Purbeck Road613 m away | 34 m² | 58 m² | +24 m² +71% | 2011 |
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| Flat 2, Skerryvore Court, 63, Alum Chine Road850 m away | 47 m² | 70 m² | +23 m² +49% | 2024 |
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| Flat 3, 10, Mckinley Road389 m away | 123 m² | 146 m² | +23 m² +19% | 2023 |
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| 66, Homewaye House, 10, Pine Tree Glen678 m away | 41 m² | 64 m² | +23 m² +56% | 2023 |
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| 12, Surrey Gardens895 m away | 115 m² | 138 m² | +23 m² +20% | 2020 |
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| Flat 4, 24, Herbert Road895 m away | 31 m² | 54 m² | +23 m² +74% | 2019 |
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| 14a, Pembroke Road888 m away | 90 m² | 112 m² | +22 m² +24% | 2025 |
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| 4, Pembroke Road888 m away | 24 m² | 46 m² | +22 m² +92% | 2023 |
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| Flat 25, Grand Marine Court, Durley Gardens400 m away | 122 m² | 144 m² | +22 m² +18% | 2021 |
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| Flat 2, Chester House, 16, Durley Chine Road370 m away | 77 m² | 99 m² | +22 m² +29% | 2019 |
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| Flat 2, 2, Norwich Avenue659 m away | 44 m² | 66 m² | +22 m² +50% | 2019 |
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| Flat 28, Brompton Court, St Stephens Road966 m away | 82 m² | 104 m² | +22 m² +27% | 2019 |
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| Flat 42, Brompton Court, St Stephens Road966 m away | 80 m² | 102 m² | +22 m² +28% | 2019 |
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| Flat 5, Tarrants, 6, Branksome Wood Road948 m away | 95 m² | 117 m² | +22 m² +23% | 2016 |
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| 83, West Hill Road588 m away | 26 m² | 48 m² | +22 m² +85% | 2015 |
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| Flat 6, Crescent Court, 33, Chine Crescent269 m away | 74 m² | 96 m² | +22 m² +30% | 2013 |
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| 27, Durley Chine Road South242 m away | 98 m² | 120 m² | +22 m² +22% | 2011 |
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| 11, Suffolk Road661 m away | 39 m² | 61 m² | +22 m² +56% | 2010 |
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| The Penthouse, Lawn Court, 9, Surrey Road836 m away | 136 m² | 157 m² | +21 m² +15% | 2023 |
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| Flat 2, Caerlyon House, 11, Burnaby Road662 m away | 136 m² | 157 m² | +21 m² +15% | 2022 |
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| 38, St Michaels Road658 m away | 19 m² | 40 m² | +21 m² +111% | 2017 |
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| Flat 3, Grosvenor Hall, 19, Grosvenor Road709 m away | 90 m² | 111 m² | +21 m² +23% | 2016 |
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| 69, West Hill Road526 m away | 54 m² | 75 m² | +21 m² +39% | 2015 |
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| 28, R L Stevenson Avenue847 m away | 80 m² | 101 m² | +21 m² +26% | 2014 |
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| Flat 1, 42, Westbourne Park Road960 m away | 34 m² | 54 m² | +20 m² +59% | 2025 |
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| Flat 6, Nightingales, 5, Milner Road359 m away | 101 m² | 121 m² | +20 m² +20% | 2023 |
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| 18, Central Park, 8, Branksome Wood Road948 m away | 42 m² | 62 m² | +20 m² +48% | 2023 |
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| Flat 1, 22, Burnaby Road662 m away | 63 m² | 83 m² | +20 m² +32% | 2020 |
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| Flat 9, Bourneview Court, 18, St Stephens Road998 m away | 45 m² | 65 m² | +20 m² +44% | 2020 |
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| Flat 7, 97, St Michaels Road735 m away | 67 m² | 87 m² | +20 m² +30% | 2019 |
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| 27, Wharfdale Road750 m away | 98 m² | 118 m² | +20 m² +20% | 2015 |
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| Flat 6, 11, Alumhurst Road935 m away | 55 m² | 75 m² | +20 m² +36% | 2012 |
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| 32, Central Park, 8, Branksome Wood Road948 m away | 60 m² | 79 m² | +19 m² +32% | 2026 |
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| Flat 4, 6, Pembroke Road888 m away | 19 m² | 38 m² | +19 m² +100% | 2025 |
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| Flat 2, 2, Westbourne Park Road954 m away | 71 m² | 90 m² | +19 m² +27% | 2025 |
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| Flat 9, Marlborough Court, 16, Marlborough Road393 m away | 40 m² | 59 m² | +19 m² +48% | 2023 |
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| Flat 2, 19, Alumhurst Road935 m away | 40 m² | 59 m² | +19 m² +48% | 2022 |
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| Flat 1, St Georges Gate, 43, Norwich Avenue West590 m away | 49 m² | 68 m² | +19 m² +39% | 2019 |
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| Flat 2, Oakwood House 117-119, West Hill Road629 m away | 51 m² | 70 m² | +19 m² +37% | 2019 |
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| 45, Norwich Avenue West594 m away | 52 m² | 71 m² | +19 m² +37% | 2014 |
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| 10, Surrey Gardens895 m away | 107 m² | 126 m² | +19 m² +18% | 2013 |
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| Flat 3, West Cliff Views, 52, St Michaels Road658 m away | 24 m² | 42 m² | +18 m² +75% | 2024 |
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| Flat 5, Hays On The Chine, 4 - 6, Studland Road585 m away | 80 m² | 98 m² | +18 m² +23% | 2021 |
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| Flat 3, Bourneview Court, 18, St Stephens Road998 m away | 47 m² | 65 m² | +18 m² +38% | 2020 |
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| Flat 11, Royal Victoria Apartments, 17, Poole Road466 m away | 74 m² | 92 m² | +18 m² +24% | 2019 |
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| 34, St Michaels Road658 m away | 19 m² | 37 m² | +18 m² +95% | 2019 |
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| Flat 6, Bourneside, 18 - 20, Crescent Road787 m away | 61 m² | 79 m² | +18 m² +30% | 2019 |
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| Flat 6, Wheaton Grange, 16, Branksome Wood Road964 m away | 71 m² | 89 m² | +18 m² +25% | 2019 |
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| Flat 4, Westcliff Apartments, 131, West Hill Road629 m away | 56 m² | 74 m² | +18 m² +32% | 2018 |
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| Flat 2, Poole Hill Mews, 4, Upper Norwich Road603 m away | 45 m² | 63 m² | +18 m² +40% | 2013 |
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| Flat 13, Bay View Mews, 14a, West Cliff Road568 m away | 66 m² | 83 m² | +17 m² +26% | 2024 |
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| Flat 17, Tower Court, 14, West Cliff Road573 m away | 55 m² | 72 m² | +17 m² +31% | 2024 |
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| Flat 3, Cransley Court, 18, Portarlington Road297 m away | 50 m² | 67 m² | +17 m² +34% | 2022 |
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| Flat 13, Crag Hall, 15-17, Durley Gardens360 m away | 17 m² | 34 m² | +17 m² +100% | 2022 |
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| Flat 6, Alexandra Court, 4, Pine Tree Glen761 m away | 71 m² | 88 m² | +17 m² +24% | 2020 |
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| Flat 16, Parkgate Manor, 8, Suffolk Road710 m away | 39 m² | 56 m² | +17 m² +44% | 2016 |
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| Flat 4, Parkgate Manor, 8, Suffolk Road710 m away | 31 m² | 48 m² | +17 m² +55% | 2016 |
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| 11, Rosemount Road673 m away | 58 m² | 75 m² | +17 m² +29% | 2015 |
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| 37, St Michaels Road683 m away | 32 m² | 49 m² | +17 m² +53% | 2014 |
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| 24, Alum Chine Road780 m away | 101 m² | 118 m² | +17 m² +17% | 2014 |
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| 41, Norwich Road619 m away | 104 m² | 120 m² | +16 m² +15% | 2026 |
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| Flat 3, Burnaby House, 34, Burnaby Road663 m away | 71 m² | 87 m² | +16 m² +23% | 2026 |
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| 8, South View Place580 m away | 106 m² | 122 m² | +16 m² +15% | 2024 |
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| Flat 1, Westcliff Apartments, 131, West Hill Road629 m away | 60 m² | 76 m² | +16 m² +27% | 2024 |
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| 3, Royal Victoria Mews435 m away | 91 m² | 107 m² | +16 m² +18% | 2023 |
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| Flat 4, The Gables, 2, Pine Tree Glen761 m away | 61 m² | 77 m² | +16 m² +26% | 2023 |
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| Flat 7, Palermo Court, 3, Durley Chine Road400 m away | 32 m² | 48 m² | +16 m² +50% | 2021 |
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| Flat 5, Bourne River Court, 17, Surrey Road856 m away | 62 m² | 78 m² | +16 m² +26% | 2021 |
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| Flat 6, Pembroke Place, 70 - 72, Alumhurst Road824 m away | 47 m² | 63 m² | +16 m² +34% | 2020 |
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| Flat 4, Toorak, 3, Clarendon Road247 m away | 80 m² | 96 m² | +16 m² +20% | 2019 |
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| 24e, Surrey Road808 m away | 63 m² | 79 m² | +16 m² +25% | 2019 |
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| Flat 13, Norwich Court, 43, Norwich Road619 m away | 50 m² | 66 m² | +16 m² +32% | 2018 |
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| Flat 5, Grosvenor Hall, 19, Grosvenor Road709 m away | 95 m² | 111 m² | +16 m² +17% | 2016 |
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| Flat 15, Parkgate Manor, 8, Suffolk Road710 m away | 48 m² | 64 m² | +16 m² +33% | 2016 |
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| Flat 3, Chine Crescent House, 12, Chine Crescent Road207 m away | 87 m² | 103 m² | +16 m² +18% | 2014 |
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| 58c, R L Stevenson Avenue847 m away | 28 m² | 44 m² | +16 m² +57% | 2014 |
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| Flat 5, Beverley Grange, 30, Portarlington Road504 m away | 56 m² | 72 m² | +16 m² +29% | 2013 |
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| Flat 6, Albermarle, 11, Marlborough Road355 m away | 71 m² | 87 m² | +16 m² +23% | 2010 |
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| 9, Terrace Mount Residences, Terrace Road907 m away | 87 m² | 102 m² | +15 m² +17% | 2025 |
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| 28, Homewaye House, 10, Pine Tree Glen678 m away | 30 m² | 45 m² | +15 m² +50% | 2023 |
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| 13, Queens Road552 m away | 70 m² | 85 m² | +15 m² +21% | 2022 |
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| Sea Mist, 16, Studland Road585 m away | 65 m² | 80 m² | +15 m² +23% | 2022 |
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| Flat 2, Magnolia Court, 1, Clarendon Road383 m away | 87 m² | 102 m² | +15 m² +17% | 2021 |
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| Flat 8, The Boltons, 9, Durley Chine Road South242 m away | 42 m² | 57 m² | +15 m² +36% | 2019 |
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| 30, Norwich Avenue569 m away | 88 m² | 103 m² | +15 m² +17% | 2019 |
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| Flat 2, Mountbatten Lodge, 83, Alumhurst Road722 m away | 54 m² | 69 m² | +15 m² +28% | 2018 |
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| Flat 10, Parkgate Manor, 8, Suffolk Road710 m away | 41 m² | 56 m² | +15 m² +37% | 2016 |
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| Flat 8, Haven View, 32, Burnaby Road663 m away | 60 m² | 75 m² | +15 m² +25% | 2015 |
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| Flat 2, The Chine, 28 - 32, Studland Road585 m away | 60 m² | 75 m² | +15 m² +25% | 2014 |
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| Flat 13, Arncott Hall, 13, Poole Road434 m away | 42 m² | 57 m² | +15 m² +36% | 2012 |
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