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 N9 8NH
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 |
|---|---|---|---|---|
| 46, Cuckoo Hall Lane476 m away | 105 m² | 211 m² | +106 m² +101% | 2019 |
| 76, Cambourne Avenue601 m away | 71 m² | 162 m² | +91 m² +128% | 2025 |
| 23, Wellington Avenue959 m away | 99 m² | 190 m² | +91 m² +92% | 2022 |
| 189, St Marys Road374 m away | 87 m² | 176 m² | +89 m² +102% | 2026 |
| 147, St Edmunds Road937 m away | 86 m² | 167 m² | +81 m² +94% | 2022 |
| 15, Hamilton Avenue905 m away | 60 m² | 133 m² | +73 m² +122% | 2022 |
| 19, Bury Street579 m away | 64 m² | 134 m² | +70 m² +109% | 2024 |
| 79, King Edwards Road441 m away | 78 m² | 147 m² | +69 m² +88% | 2025 |
| 1, Lowden Road190 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.
| 105 m² |
| 173 m² |
| +68 m² +65% |
| 2020 |
| 228, Bounces Road615 m away | 91 m² | 158 m² | +67 m² +74% | 2023 |
|---|
| 24, Cornwallis Grove634 m away | 67 m² | 134 m² | +67 m² +100% | 2014 |
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| 94, St Edmunds Road904 m away | 70 m² | 135 m² | +65 m² +93% | 2025 |
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| 38, Galliard Road817 m away | 61 m² | 125 m² | +64 m² +105% | 2024 |
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| 13, Gordon Road628 m away | 71 m² | 135 m² | +64 m² +90% | 2014 |
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| 60, Northfield Road988 m away | 103 m² | 166 m² | +63 m² +61% | 2025 |
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| 24, Coniston Gardens415 m away | 63 m² | 125 m² | +62 m² +98% | 2026 |
|---|
| 195, St Marys Road374 m away | 91 m² | 153 m² | +62 m² +68% | 2025 |
|---|
| 228, Nightingale Road516 m away | 73 m² | 133 m² | +60 m² +82% | 2025 |
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| 129, Cuckoo Hall Lane621 m away | 86 m² | 146 m² | +60 m² +70% | 2025 |
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| 92, Chester Road369 m away | 72 m² | 132 m² | +60 m² +83% | 2023 |
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| 37, Woodlands Road286 m away | 80 m² | 139 m² | +59 m² +74% | 2023 |
|---|
| 38, Exeter Road731 m away | 69 m² | 127 m² | +58 m² +84% | 2021 |
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| 102, Nightingale Road540 m away | 121 m² | 177 m² | +56 m² +46% | 2021 |
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| 33, Balham Road891 m away | 128 m² | 184 m² | +56 m² +44% | 2018 |
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| 16, Southfield Road934 m away | 87 m² | 142 m² | +55 m² +63% | 2026 |
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| 54, Dartford Avenue728 m away | 88 m² | 143 m² | +55 m² +63% | 2019 |
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| 49, Lowden Road190 m away | 79 m² | 134 m² | +55 m² +70% | 2014 |
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| 165, Bounces Road557 m away | 81 m² | 134 m² | +53 m² +65% | 2022 |
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| 6, Kenwood Road774 m away | 81 m² | 134 m² | +53 m² +65% | 2022 |
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| 25, Seymour Road815 m away | 52 m² | 104 m² | +52 m² +100% | 2021 |
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| 31, Bury Street579 m away | 85 m² | 137 m² | +52 m² +61% | 2019 |
|---|
| 69, Westminster Road414 m away | 71 m² | 123 m² | +52 m² +73% | 2014 |
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| 20, Warren Close644 m away | 77 m² | 128 m² | +51 m² +66% | 2026 |
|---|
| 80, Monmouth Road857 m away | 95 m² | 145 m² | +50 m² +53% | 2025 |
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| 175, Hertford Road378 m away | 92 m² | 142 m² | +50 m² +54% | 2024 |
|---|
| 143, Croyland Road858 m away | 74 m² | 124 m² | +50 m² +68% | 2020 |
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| 53, Grosvenor Road243 m away | 74 m² | 123 m² | +49 m² +66% | 2025 |
|---|
| 300, Hertford Road224 m away | 94 m² | 143 m² | +49 m² +52% | 2023 |
|---|
| 21, Findon Road469 m away | 97 m² | 146 m² | +49 m² +51% | 2023 |
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| 96, Winchester Road984 m away | 84 m² | 132 m² | +48 m² +57% | 2021 |
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| 50, Shirley Grove636 m away | 75 m² | 122 m² | +47 m² +63% | 2026 |
|---|
| 21, Galliard Road817 m away | 99 m² | 146 m² | +47 m² +47% | 2024 |
|---|
| 63, Chichester Road963 m away | 69 m² | 116 m² | +47 m² +68% | 2022 |
|---|
| 15, St Peters Road361 m away | 90 m² | 136 m² | +46 m² +51% | 2026 |
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| 118, St Josephs Road156 m away | 85 m² | 131 m² | +46 m² +54% | 2025 |
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| 73, Chiswick Road759 m away | 78 m² | 124 m² | +46 m² +59% | 2024 |
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| 157, Cuckoo Hall Lane621 m away | 71 m² | 117 m² | +46 m² +65% | 2023 |
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| 23, Rosemary Avenue378 m away | 79 m² | 124 m² | +45 m² +57% | 2020 |
|---|
| 15, St Michaels Avenue428 m away | 60 m² | 104 m² | +44 m² +73% | 2026 |
|---|
| 208, Bounces Road615 m away | 77 m² | 121 m² | +44 m² +57% | 2026 |
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| 18, Logan Road808 m away | 70 m² | 114 m² | +44 m² +63% | 2025 |
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| 36, Colville Road436 m away | 72 m² | 116 m² | +44 m² +61% | 2023 |
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| 57, Grosvenor Road243 m away | 77 m² | 121 m² | +44 m² +57% | 2022 |
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| 14, Grosvenor Road314 m away | 69 m² | 113 m² | +44 m² +64% | 2021 |
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| 75, Chiswick Road759 m away | 84 m² | 128 m² | +44 m² +52% | 2021 |
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| 47, Bridlington Road424 m away | 77 m² | 121 m² | +44 m² +57% | 2015 |
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| 202, Winchester Road996 m away | 89 m² | 132 m² | +43 m² +48% | 2024 |
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| 42, Oxford Road632 m away | 75 m² | 117 m² | +42 m² +56% | 2023 |
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| 85, Charlton Road750 m away | 80 m² | 120 m² | +40 m² +50% | 2026 |
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| 40, Dover Road756 m away | 87 m² | 126 m² | +39 m² +45% | 2024 |
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| 4, Warren Crescent997 m away | 94 m² | 133 m² | +39 m² +41% | 2024 |
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| 19, Westoe Road807 m away | 70 m² | 109 m² | +39 m² +56% | 2021 |
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| 126, Town Road900 m away | 75 m² | 114 m² | +39 m² +52% | 2020 |
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| 1, Brierley Avenue539 m away | 92 m² | 130 m² | +38 m² +41% | 2025 |
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| 40, Exeter Road731 m away | 81 m² | 119 m² | +38 m² +47% | 2023 |
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| 427, Montagu Road963 m away | 49 m² | 87 m² | +38 m² +78% | 2010 |
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| 42, Dartford Avenue728 m away | 87 m² | 124 m² | +37 m² +43% | 2022 |
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| 22, Wellington Avenue964 m away | 85 m² | 122 m² | +37 m² +44% | 2022 |
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| 244, Hertford Road299 m away | 59 m² | 96 m² | +37 m² +63% | 2021 |
|---|
| 2a, Densworth Grove926 m away | 74 m² | 111 m² | +37 m² +50% | 2020 |
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| 20, Coniston Gardens415 m away | 68 m² | 105 m² | +37 m² +54% | 2017 |
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| 42, Galliard Road817 m away | 76 m² | 113 m² | +37 m² +49% | 2015 |
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| 23, Chester Road370 m away | 82 m² | 118 m² | +36 m² +44% | 2022 |
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| 48, Forest Road115 m away | 76 m² | 112 m² | +36 m² +47% | 2014 |
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| 66, St Peters Road349 m away | 42 m² | 77 m² | +35 m² +83% | 2026 |
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| 106, Exeter Road863 m away | 79 m² | 114 m² | +35 m² +44% | 2025 |
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| 27, Chiswick Road893 m away | 94 m² | 129 m² | +35 m² +37% | 2025 |
|---|
| 189, Bounces Road557 m away | 88 m² | 123 m² | +35 m² +40% | 2023 |
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| 16, Oxford Road632 m away | 80 m² | 115 m² | +35 m² +44% | 2019 |
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| 126, Sandhurst Road930 m away | 94 m² | 129 m² | +35 m² +37% | 2019 |
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| 51, Southfield Road903 m away | 84 m² | 119 m² | +35 m² +42% | 2015 |
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| 178, Bounces Road615 m away | 109 m² | 144 m² | +35 m² +32% | 2010 |
|---|
| 49, Gordon Road628 m away | 82 m² | 116 m² | +34 m² +41% | 2022 |
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| 121, Charlton Road750 m away | 80 m² | 114 m² | +34 m² +43% | 2016 |
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| 51, Chester Road370 m away | 74 m² | 108 m² | +34 m² +46% | 2015 |
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| 53, Westminster Road414 m away | 106 m² | 139 m² | +33 m² +31% | 2025 |
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| 12, Oxford Road632 m away | 88 m² | 121 m² | +33 m² +38% | 2025 |
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| 7, Nash Road681 m away | 83 m² | 116 m² | +33 m² +40% | 2022 |
|---|
| 199, Galliard Road857 m away | 79 m² | 112 m² | +33 m² +42% | 2021 |
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| 258, Croyland Road885 m away | 78 m² | 110 m² | +32 m² +41% | 2026 |
|---|
| 70, Lowden Road164 m away | 69 m² | 101 m² | +32 m² +46% | 2024 |
|---|
| 34, Elmcroft Avenue809 m away | 99 m² | 131 m² | +32 m² +32% | 2024 |
|---|
| 31, Westminster Road414 m away | 90 m² | 122 m² | +32 m² +36% | 2023 |
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| 45, Cornwallis Road631 m away | 94 m² | 126 m² | +32 m² +34% | 2022 |
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| 97, Grosvenor Road243 m away | 43 m² | 75 m² | +32 m² +74% | 2019 |
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| 25, Croyland Road779 m away | 82 m² | 114 m² | +32 m² +39% | 2011 |
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| 32, Wellstead Avenue658 m away | 73 m² | 104 m² | +31 m² +42% | 2025 |
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| 4, Northfield Road988 m away | 111 m² | 142 m² | +31 m² +28% | 2025 |
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| 35, Bury Street579 m away | 76 m² | 107 m² | +31 m² +41% | 2024 |
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| 28, South Road565 m away | 71 m² | 102 m² | +31 m² +44% | 2023 |
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| 1, Kingsmead Avenue459 m away | 129 m² | 160 m² | +31 m² +24% | 2022 |
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| 47, Oxford Road629 m away | 40 m² | 71 m² | +31 m² +78% | 2021 |
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| 14, Chelsfield Green811 m away | 70 m² | 101 m² | +31 m² +44% | 2021 |
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| 70, Croyland Road762 m away | 64 m² | 95 m² | +31 m² +48% | 2017 |
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| 214, Hertford Road413 m away | 59 m² | 90 m² | +31 m² +53% | 2016 |
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| 292, Nightingale Road578 m away | 65 m² | 96 m² | +31 m² +48% | 2016 |
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| 15, North Road319 m away | 74 m² | 104 m² | +30 m² +41% | 2025 |
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| 131, St Marys Road374 m away | 67 m² | 97 m² | +30 m² +45% | 2023 |
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| 7, St Alphege Road359 m away | 89 m² | 119 m² | +30 m² +34% | 2021 |
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| 185c, Town Road999 m away | 52 m² | 82 m² | +30 m² +58% | 2019 |
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| 40, Denny Road372 m away | 76 m² | 106 m² | +30 m² +39% | 2014 |
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| 13, Ranworth Road833 m away | 105 m² | 134 m² | +29 m² +28% | 2026 |
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| 19, Elstree Gardens449 m away | 85 m² | 114 m² | +29 m² +34% | 2024 |
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| 282, Nightingale Road578 m away | 86 m² | 115 m² | +29 m² +34% | 2024 |
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| 174, Croyland Road874 m away | 95 m² | 124 m² | +29 m² +31% | 2024 |
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| 28, Turin Road314 m away | 114 m² | 143 m² | +29 m² +25% | 2023 |
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| 10, Galliard Road817 m away | 57 m² | 86 m² | +29 m² +51% | 2022 |
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| 62, Tramway Avenue236 m away | 63 m² | 92 m² | +29 m² +46% | 2019 |
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| 8, Grosvenor Road314 m away | 76 m² | 105 m² | +29 m² +38% | 2019 |
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| 7, Shirley Grove623 m away | 59 m² | 88 m² | +29 m² +49% | 2018 |
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| 24, Findon Road469 m away | 92 m² | 121 m² | +29 m² +32% | 2017 |
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| 21, Chelsfield Avenue837 m away | 88 m² | 117 m² | +29 m² +33% | 2015 |
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| 35, Doncaster Road240 m away | 87 m² | 115 m² | +28 m² +32% | 2025 |
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| 133, St Marys Road374 m away | 71 m² | 99 m² | +28 m² +39% | 2025 |
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| 44, Galliard Road817 m away | 70 m² | 98 m² | +28 m² +40% | 2023 |
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| 38, Dover Road756 m away | 96 m² | 124 m² | +28 m² +29% | 2021 |
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| 5b, Balham Road891 m away | 56 m² | 84 m² | +28 m² +50% | 2020 |
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| 13, Oxford Road629 m away | 68 m² | 96 m² | +28 m² +41% | 2014 |
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| 42, Balham Road897 m away | 91 m² | 119 m² | +28 m² +31% | 2014 |
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| 23, Grosvenor Road243 m away | 118 m² | 146 m² | +28 m² +24% | 2013 |
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| 24, Southfield Road934 m away | 57 m² | 85 m² | +28 m² +49% | 2011 |
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| 35, Marsden Road795 m away | 81 m² | 108 m² | +27 m² +33% | 2026 |
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| 26, Gordon Road632 m away | 78 m² | 105 m² | +27 m² +35% | 2025 |
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| 90, Forest Road115 m away | 78 m² | 105 m² | +27 m² +35% | 2023 |
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| 101, Exeter Road863 m away | 83 m² | 110 m² | +27 m² +33% | 2022 |
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| 194, Galliard Road727 m away | 98 m² | 125 m² | +27 m² +28% | 2020 |
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| 100, Forest Road115 m away | 73 m² | 100 m² | +27 m² +37% | 2014 |
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| 57, Lowden Road190 m away | 44 m² | 71 m² | +27 m² +61% | 2014 |
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| 393, Hertford Road353 m away | 95 m² | 121 m² | +26 m² +27% | 2025 |
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| 145, Bury Street753 m away | 41 m² | 67 m² | +26 m² +63% | 2025 |
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| 124, St Edmunds Road920 m away | 91 m² | 117 m² | +26 m² +29% | 2025 |
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| 266a, St Marys Road494 m away | 63 m² | 89 m² | +26 m² +41% | 2024 |
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| 94, Sandhurst Road843 m away | 88 m² | 114 m² | +26 m² +30% | 2024 |
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| 16, Mayfield Crescent936 m away | 67 m² | 93 m² | +26 m² +39% | 2024 |
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| 64, Cambourne Avenue601 m away | 64 m² | 90 m² | +26 m² +41% | 2023 |
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| 7, Dover Road756 m away | 93 m² | 119 m² | +26 m² +28% | 2022 |
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| 238, Croyland Road885 m away | 103 m² | 129 m² | +26 m² +25% | 2020 |
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| 45, Penfold Road597 m away | 82 m² | 108 m² | +26 m² +32% | 2019 |
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| 11, Kingsmead Avenue459 m away | 77 m² | 103 m² | +26 m² +34% | 2016 |
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| 59, Lowden Road190 m away | 45 m² | 71 m² | +26 m² +58% | 2014 |
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| 37, Harton Road804 m away | 82 m² | 108 m² | +26 m² +32% | 2013 |
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| 8, Bury Street535 m away | 81 m² | 107 m² | +26 m² +32% | 2012 |
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| 57, Bath Road575 m away | 79 m² | 104 m² | +25 m² +32% | 2025 |
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| 37, Cornwallis Road631 m away | 70 m² | 95 m² | +25 m² +36% | 2022 |
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| 99, Town Road873 m away | 75 m² | 100 m² | +25 m² +33% | 2020 |
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| 44, Chaffinch Close700 m away | 44 m² | 69 m² | +25 m² +57% | 2012 |
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| 520, Hertford Road564 m away | 47 m² | 72 m² | +25 m² +53% | 2010 |
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| 13, Cornwallis Grove658 m away | 35 m² | 60 m² | +25 m² +71% | 2008 |
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| 58, Cornwallis Grove634 m away | 87 m² | 111 m² | +24 m² +28% | 2025 |
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| 22, Nelson Road970 m away | 56 m² | 80 m² | +24 m² +43% | 2024 |
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| 128, Oaklands Avenue738 m away | 56 m² | 80 m² | +24 m² +43% | 2021 |
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| 7, Elstree Gardens449 m away | 85 m² | 109 m² | +24 m² +28% | 2014 |
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| 1, Martin Close695 m away | 20 m² | 44 m² | +24 m² +120% | 2012 |
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| 32, Wellington Avenue964 m away | 85 m² | 109 m² | +24 m² +28% | 2012 |
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| 72, Westminster Road383 m away | 87 m² | 110 m² | +23 m² +26% | 2022 |
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| 5, Cambourne Avenue597 m away | 67 m² | 90 m² | +23 m² +34% | 2022 |
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| 86, Southfield Road934 m away | 85 m² | 108 m² | +23 m² +27% | 2022 |
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| 288, Hertford Road224 m away | 72 m² | 95 m² | +23 m² +32% | 2020 |
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| 53, Southfield Road903 m away | 103 m² | 126 m² | +23 m² +22% | 2019 |
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| 5, Scarborough Road517 m away | 72 m² | 95 m² | +23 m² +32% | 2014 |
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| 54, Oxford Road632 m away | 43 m² | 65 m² | +22 m² +51% | 2025 |
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| 43, King Edwards Road335 m away | 91 m² | 113 m² | +22 m² +24% | 2024 |
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| 2, Salmons Road816 m away | 122 m² | 144 m² | +22 m² +18% | 2023 |
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| 39, Devonshire Road519 m away | 80 m² | 102 m² | +22 m² +28% | 2022 |
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| 51, Beatrice Road564 m away | 113 m² | 135 m² | +22 m² +19% | 2019 |
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| 94, Oaklands Avenue738 m away | 70 m² | 92 m² | +22 m² +31% | 2019 |
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| 29, Colville Road458 m away | 98 m² | 120 m² | +22 m² +22% | 2016 |
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| 29, Dover Road756 m away | 88 m² | 110 m² | +22 m² +25% | 2014 |
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| 14, Shirley Grove636 m away | 66 m² | 88 m² | +22 m² +33% | 2011 |
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| 140, Nightingale Road457 m away | 71 m² | 93 m² | +22 m² +31% | 2010 |
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| 2, Crescent Road634 m away | 88 m² | 109 m² | +21 m² +24% | 2026 |
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| 28, Nelson Road970 m away | 81 m² | 102 m² | +21 m² +26% | 2026 |
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| 37, Denny Road385 m away | 89 m² | 110 m² | +21 m² +24% | 2025 |
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| 103, Charlton Road750 m away | 68 m² | 89 m² | +21 m² +31% | 2025 |
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| 20, Cornwallis Grove634 m away | 73 m² | 94 m² | +21 m² +29% | 2024 |
|---|
| 13, Cornwallis Avenue714 m away | 72 m² | 93 m² | +21 m² +29% | 2024 |
|---|
| 102, Charlton Road731 m away | 103 m² | 124 m² | +21 m² +20% | 2022 |
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| 117, Croyland Road858 m away | 68 m² | 89 m² | +21 m² +31% | 2022 |
|---|
| 300, Nightingale Road578 m away | 78 m² | 99 m² | +21 m² +27% | 2021 |
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| 17, Croyland Road779 m away | 82 m² | 103 m² | +21 m² +26% | 2021 |
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| 20, Oxford Close651 m away | 79 m² | 100 m² | +21 m² +27% | 2020 |
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| 34, Croyland Road655 m away | 28 m² | 49 m² | +21 m² +75% | 2010 |
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| 86, Chester Road369 m away | 90 m² | 110 m² | +20 m² +22% | 2026 |
|---|
| 296, Nightingale Road578 m away | 78 m² | 98 m² | +20 m² +26% | 2025 |
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| 253, Hertford Road278 m away | 93 m² | 113 m² | +20 m² +22% | 2024 |
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| 16, Forest Road115 m away | 71 m² | 91 m² | +20 m² +28% | 2021 |
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| 34, Oaklands Avenue670 m away | 76 m² | 96 m² | +20 m² +26% | 2020 |
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| 22, Coniston Gardens415 m away | 115 m² | 135 m² | +20 m² +17% | 2019 |
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| 20, Hickory Close947 m away | 28 m² | 48 m² | +20 m² +71% | 2019 |
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| 2, Wellington Avenue964 m away | 73 m² | 93 m² | +20 m² +27% | 2015 |
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