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 8RU
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 Lane596 m away | 105 m² | 211 m² | +106 m² +101% | 2019 |
| 76, Cambourne Avenue689 m away | 71 m² | 162 m² | +91 m² +128% | 2025 |
| 23, Wellington Avenue864 m away | 99 m² | 190 m² | +91 m² +92% | 2022 |
| 189, St Marys Road428 m away | 87 m² | 176 m² | +89 m² +102% | 2026 |
| 147, St Edmunds Road901 m away | 86 m² | 167 m² | +81 m² +94% | 2022 |
| 15, Hamilton Avenue885 m away | 60 m² | 133 m² | +73 m² +122% | 2022 |
| 19, Bury Street467 m away | 64 m² | 134 m² | +70 m² +109% | 2024 |
| 79, King Edwards Road463 m away | 78 m² | 147 m² | +69 m² +88% | 2025 |
| 1, Lowden Road72 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 Road575 m away | 91 m² | 158 m² | +67 m² +74% | 2023 |
|---|
| 24, Cornwallis Grove556 m away | 67 m² | 134 m² | +67 m² +100% | 2014 |
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| 94, St Edmunds Road868 m away | 70 m² | 135 m² | +65 m² +93% | 2025 |
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| 38, Galliard Road773 m away | 61 m² | 125 m² | +64 m² +105% | 2024 |
|---|
| 13, Gordon Road527 m away | 71 m² | 135 m² | +64 m² +90% | 2014 |
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| 24, Coniston Gardens419 m away | 63 m² | 125 m² | +62 m² +98% | 2026 |
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| 195, St Marys Road428 m away | 91 m² | 153 m² | +62 m² +68% | 2025 |
|---|
| 228, Nightingale Road586 m away | 73 m² | 133 m² | +60 m² +82% | 2025 |
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| 129, Cuckoo Hall Lane736 m away | 86 m² | 146 m² | +60 m² +70% | 2025 |
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| 92, Chester Road271 m away | 72 m² | 132 m² | +60 m² +83% | 2023 |
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| 37, Woodlands Road313 m away | 80 m² | 139 m² | +59 m² +74% | 2023 |
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| 38, Exeter Road660 m away | 69 m² | 127 m² | +58 m² +84% | 2021 |
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| 203, Winchester Road958 m away | 71 m² | 128 m² | +57 m² +80% | 2023 |
|---|
| 102, Nightingale Road660 m away | 121 m² | 177 m² | +56 m² +46% | 2021 |
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| 33, Balham Road771 m away | 128 m² | 184 m² | +56 m² +44% | 2018 |
|---|
| 54, Dartford Avenue848 m away | 88 m² | 143 m² | +55 m² +63% | 2019 |
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| 49, Lowden Road72 m away | 79 m² | 134 m² | +55 m² +70% | 2014 |
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| 165, Bounces Road520 m away | 81 m² | 134 m² | +53 m² +65% | 2022 |
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| 6, Kenwood Road661 m away | 81 m² | 134 m² | +53 m² +65% | 2022 |
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| 25, Seymour Road724 m away | 52 m² | 104 m² | +52 m² +100% | 2021 |
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| 31, Bury Street467 m away | 85 m² | 137 m² | +52 m² +61% | 2019 |
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| 69, Westminster Road304 m away | 71 m² | 123 m² | +52 m² +73% | 2014 |
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| 20, Warren Close737 m away | 77 m² | 128 m² | +51 m² +66% | 2026 |
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| 80, Monmouth Road795 m away | 95 m² | 145 m² | +50 m² +53% | 2025 |
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| 175, Hertford Road265 m away | 92 m² | 142 m² | +50 m² +54% | 2024 |
|---|
| 143, Croyland Road765 m away | 74 m² | 124 m² | +50 m² +68% | 2020 |
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| 53, Grosvenor Road126 m away | 74 m² | 123 m² | +49 m² +66% | 2025 |
|---|
| 300, Hertford Road144 m away | 94 m² | 143 m² | +49 m² +52% | 2023 |
|---|
| 21, Findon Road357 m away | 97 m² | 146 m² | +49 m² +51% | 2023 |
|---|
| 96, Winchester Road874 m away | 84 m² | 132 m² | +48 m² +57% | 2021 |
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| 50, Shirley Grove744 m away | 75 m² | 122 m² | +47 m² +63% | 2026 |
|---|
| 21, Galliard Road741 m away | 99 m² | 146 m² | +47 m² +47% | 2024 |
|---|
| 63, Chichester Road852 m away | 69 m² | 116 m² | +47 m² +68% | 2022 |
|---|
| 15, St Peters Road281 m away | 90 m² | 136 m² | +46 m² +51% | 2026 |
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| 118, St Josephs Road245 m away | 85 m² | 131 m² | +46 m² +54% | 2025 |
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| 73, Chiswick Road639 m away | 78 m² | 124 m² | +46 m² +59% | 2024 |
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| 157, Cuckoo Hall Lane736 m away | 71 m² | 117 m² | +46 m² +65% | 2023 |
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| 23, Rosemary Avenue258 m away | 79 m² | 124 m² | +45 m² +57% | 2020 |
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| 15, St Michaels Avenue546 m away | 60 m² | 104 m² | +44 m² +73% | 2026 |
|---|
| 208, Bounces Road575 m away | 77 m² | 121 m² | +44 m² +57% | 2026 |
|---|
| 18, Logan Road720 m away | 70 m² | 114 m² | +44 m² +63% | 2025 |
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| 36, Colville Road353 m away | 72 m² | 116 m² | +44 m² +61% | 2023 |
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| 57, Grosvenor Road126 m away | 77 m² | 121 m² | +44 m² +57% | 2022 |
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| 14, Grosvenor Road193 m away | 69 m² | 113 m² | +44 m² +64% | 2021 |
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| 75, Chiswick Road639 m away | 84 m² | 128 m² | +44 m² +52% | 2021 |
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| 47, Bridlington Road439 m away | 77 m² | 121 m² | +44 m² +57% | 2015 |
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| 202, Winchester Road900 m away | 89 m² | 132 m² | +43 m² +48% | 2024 |
|---|
| 42, Oxford Road522 m away | 75 m² | 117 m² | +42 m² +56% | 2023 |
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| 111, Winchester Road918 m away | 83 m² | 124 m² | +41 m² +49% | 2025 |
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| 85, Charlton Road841 m away | 80 m² | 120 m² | +40 m² +50% | 2026 |
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| 35, Lion Road944 m away | 86 m² | 126 m² | +40 m² +47% | 2024 |
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| 40, Dover Road702 m away | 87 m² | 126 m² | +39 m² +45% | 2024 |
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| 4, Warren Crescent933 m away | 94 m² | 133 m² | +39 m² +41% | 2024 |
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| 19, Westoe Road705 m away | 70 m² | 109 m² | +39 m² +56% | 2021 |
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| 126, Town Road803 m away | 75 m² | 114 m² | +39 m² +52% | 2020 |
|---|
| 1, Brierley Avenue564 m away | 92 m² | 130 m² | +38 m² +41% | 2025 |
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| 40, Exeter Road660 m away | 81 m² | 119 m² | +38 m² +47% | 2023 |
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| 427, Montagu Road905 m away | 49 m² | 87 m² | +38 m² +78% | 2010 |
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| 60, Lion Road928 m away | 75 m² | 112 m² | +37 m² +49% | 2023 |
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| 42, Dartford Avenue848 m away | 87 m² | 124 m² | +37 m² +43% | 2022 |
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| 22, Wellington Avenue872 m away | 85 m² | 122 m² | +37 m² +44% | 2022 |
|---|
| 244, Hertford Road189 m away | 59 m² | 96 m² | +37 m² +63% | 2021 |
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| 2a, Densworth Grove860 m away | 74 m² | 111 m² | +37 m² +50% | 2020 |
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| 20, Coniston Gardens419 m away | 68 m² | 105 m² | +37 m² +54% | 2017 |
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| 42, Galliard Road773 m away | 76 m² | 113 m² | +37 m² +49% | 2015 |
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| 23, Chester Road278 m away | 82 m² | 118 m² | +36 m² +44% | 2022 |
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| 48, Forest Road43 m away | 76 m² | 112 m² | +36 m² +47% | 2014 |
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| 66, St Peters Road278 m away | 42 m² | 77 m² | +35 m² +83% | 2026 |
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| 27, Chiswick Road774 m away | 94 m² | 129 m² | +35 m² +37% | 2025 |
|---|
| 106, Exeter Road790 m away | 79 m² | 114 m² | +35 m² +44% | 2025 |
|---|
| 189, Bounces Road520 m away | 88 m² | 123 m² | +35 m² +40% | 2023 |
|---|
| 16, Oxford Road522 m away | 80 m² | 115 m² | +35 m² +44% | 2019 |
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| 51, Southfield Road1000 m away | 84 m² | 119 m² | +35 m² +42% | 2015 |
|---|
| 178, Bounces Road575 m away | 109 m² | 144 m² | +35 m² +32% | 2010 |
|---|
| 49, Gordon Road527 m away | 82 m² | 116 m² | +34 m² +41% | 2022 |
|---|
| 121, Charlton Road841 m away | 80 m² | 114 m² | +34 m² +43% | 2016 |
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| 51, Chester Road278 m away | 74 m² | 108 m² | +34 m² +46% | 2015 |
|---|
| 53, Westminster Road304 m away | 106 m² | 139 m² | +33 m² +31% | 2025 |
|---|
| 12, Oxford Road522 m away | 88 m² | 121 m² | +33 m² +38% | 2025 |
|---|
| 7, Nash Road633 m away | 83 m² | 116 m² | +33 m² +40% | 2022 |
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| 199, Galliard Road914 m away | 79 m² | 112 m² | +33 m² +42% | 2021 |
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| 258, Croyland Road792 m away | 78 m² | 110 m² | +32 m² +41% | 2026 |
|---|
| 70, Lowden Road45 m away | 69 m² | 101 m² | +32 m² +46% | 2024 |
|---|
| 34, Elmcroft Avenue901 m away | 99 m² | 131 m² | +32 m² +32% | 2024 |
|---|
| 31, Westminster Road304 m away | 90 m² | 122 m² | +32 m² +36% | 2023 |
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| 45, Cornwallis Road538 m away | 94 m² | 126 m² | +32 m² +34% | 2022 |
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| 97, Grosvenor Road126 m away | 43 m² | 75 m² | +32 m² +74% | 2019 |
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| 25, Croyland Road662 m away | 82 m² | 114 m² | +32 m² +39% | 2011 |
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| 32, Wellstead Avenue758 m away | 73 m² | 104 m² | +31 m² +42% | 2025 |
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| 35, Bury Street467 m away | 76 m² | 107 m² | +31 m² +41% | 2024 |
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| 28, South Road462 m away | 71 m² | 102 m² | +31 m² +44% | 2023 |
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| 1, Kingsmead Avenue341 m away | 129 m² | 160 m² | +31 m² +24% | 2022 |
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| 47, Oxford Road522 m away | 40 m² | 71 m² | +31 m² +78% | 2021 |
|---|
| 14, Chelsfield Green930 m away | 70 m² | 101 m² | +31 m² +44% | 2021 |
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| 70, Croyland Road643 m away | 64 m² | 95 m² | +31 m² +48% | 2017 |
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| 214, Hertford Road294 m away | 59 m² | 90 m² | +31 m² +53% | 2016 |
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| 292, Nightingale Road606 m away | 65 m² | 96 m² | +31 m² +48% | 2016 |
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| 48, Winchester Road963 m away | 96 m² | 127 m² | +31 m² +32% | 2012 |
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| 15, North Road252 m away | 74 m² | 104 m² | +30 m² +41% | 2025 |
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| 131, St Marys Road428 m away | 67 m² | 97 m² | +30 m² +45% | 2023 |
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| 7, St Alphege Road474 m away | 89 m² | 119 m² | +30 m² +34% | 2021 |
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| 185c, Town Road932 m away | 52 m² | 82 m² | +30 m² +58% | 2019 |
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| 40, Denny Road281 m away | 76 m² | 106 m² | +30 m² +39% | 2014 |
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| 13, Ranworth Road755 m away | 105 m² | 134 m² | +29 m² +28% | 2026 |
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| 17, Bunting Close759 m away | 35 m² | 64 m² | +29 m² +83% | 2026 |
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| 103, Winchester Road918 m away | 100 m² | 129 m² | +29 m² +29% | 2025 |
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| 19, Elstree Gardens333 m away | 85 m² | 114 m² | +29 m² +34% | 2024 |
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| 282, Nightingale Road606 m away | 86 m² | 115 m² | +29 m² +34% | 2024 |
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| 174, Croyland Road764 m away | 95 m² | 124 m² | +29 m² +31% | 2024 |
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| 28, Turin Road428 m away | 114 m² | 143 m² | +29 m² +25% | 2023 |
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| 11, Sawyer Close941 m away | 42 m² | 71 m² | +29 m² +69% | 2023 |
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| 10, Galliard Road773 m away | 57 m² | 86 m² | +29 m² +51% | 2022 |
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| 8, Grosvenor Road193 m away | 76 m² | 105 m² | +29 m² +38% | 2019 |
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| 62, Tramway Avenue343 m away | 63 m² | 92 m² | +29 m² +46% | 2019 |
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| 7, Shirley Grove733 m away | 59 m² | 88 m² | +29 m² +49% | 2018 |
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| 24, Findon Road357 m away | 92 m² | 121 m² | +29 m² +32% | 2017 |
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| 21, Chelsfield Avenue953 m away | 88 m² | 117 m² | +29 m² +33% | 2015 |
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| 106, Croyland Road643 m away | 73 m² | 101 m² | +28 m² +38% | 2026 |
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| 35, Doncaster Road248 m away | 87 m² | 115 m² | +28 m² +32% | 2025 |
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| 133, St Marys Road428 m away | 71 m² | 99 m² | +28 m² +39% | 2025 |
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| 44, Galliard Road773 m away | 70 m² | 98 m² | +28 m² +40% | 2023 |
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| 38, Dover Road702 m away | 96 m² | 124 m² | +28 m² +29% | 2021 |
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| 5b, Balham Road771 m away | 56 m² | 84 m² | +28 m² +50% | 2020 |
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| 13, Oxford Road522 m away | 68 m² | 96 m² | +28 m² +41% | 2014 |
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| 42, Balham Road777 m away | 91 m² | 119 m² | +28 m² +31% | 2014 |
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| 10, Sawyer Close941 m away | 44 m² | 72 m² | +28 m² +64% | 2014 |
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| 23, Grosvenor Road126 m away | 118 m² | 146 m² | +28 m² +24% | 2013 |
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| 1, Oxford Road522 m away | 42 m² | 69 m² | +27 m² +64% | 2026 |
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| 35, Marsden Road687 m away | 81 m² | 108 m² | +27 m² +33% | 2026 |
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| 26, Gordon Road534 m away | 78 m² | 105 m² | +27 m² +35% | 2025 |
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| 90, Forest Road43 m away | 78 m² | 105 m² | +27 m² +35% | 2023 |
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| 101, Exeter Road790 m away | 83 m² | 110 m² | +27 m² +33% | 2022 |
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| 194, Galliard Road830 m away | 98 m² | 125 m² | +27 m² +28% | 2020 |
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| 100, Forest Road43 m away | 73 m² | 100 m² | +27 m² +37% | 2014 |
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| 57, Lowden Road72 m away | 44 m² | 71 m² | +27 m² +61% | 2014 |
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| 393, Hertford Road437 m away | 95 m² | 121 m² | +26 m² +27% | 2025 |
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| 145, Bury Street659 m away | 41 m² | 67 m² | +26 m² +63% | 2025 |
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| 124, St Edmunds Road915 m away | 91 m² | 117 m² | +26 m² +29% | 2025 |
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| 266a, St Marys Road543 m away | 63 m² | 89 m² | +26 m² +41% | 2024 |
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| 94, Sandhurst Road963 m away | 88 m² | 114 m² | +26 m² +30% | 2024 |
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| 16, Mayfield Crescent1000 m away | 67 m² | 93 m² | +26 m² +39% | 2024 |
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| 64, Cambourne Avenue689 m away | 64 m² | 90 m² | +26 m² +41% | 2023 |
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| 7, Dover Road702 m away | 93 m² | 119 m² | +26 m² +28% | 2022 |
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| 238, Croyland Road792 m away | 103 m² | 129 m² | +26 m² +25% | 2020 |
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| 45, Penfold Road670 m away | 82 m² | 108 m² | +26 m² +32% | 2019 |
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| 11, Kingsmead Avenue341 m away | 77 m² | 103 m² | +26 m² +34% | 2016 |
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| 59, Lowden Road72 m away | 45 m² | 71 m² | +26 m² +58% | 2014 |
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| 37, Harton Road707 m away | 82 m² | 108 m² | +26 m² +32% | 2013 |
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| 8, Bury Street418 m away | 81 m² | 107 m² | +26 m² +32% | 2012 |
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| 22, Salmons Road715 m away | 91 m² | 116 m² | +25 m² +27% | 2026 |
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| 57, Bath Road499 m away | 79 m² | 104 m² | +25 m² +32% | 2025 |
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| 37, Cornwallis Road538 m away | 70 m² | 95 m² | +25 m² +36% | 2022 |
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| 99, Town Road775 m away | 75 m² | 100 m² | +25 m² +33% | 2020 |
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| 44, Chaffinch Close749 m away | 44 m² | 69 m² | +25 m² +57% | 2012 |
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| 13, Cornwallis Grove579 m away | 35 m² | 60 m² | +25 m² +71% | 2008 |
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| 94, Grosvenor Road150 m away | 71 m² | 95 m² | +24 m² +34% | 2026 |
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| 58, Cornwallis Grove556 m away | 87 m² | 111 m² | +24 m² +28% | 2025 |
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| 16, Lion Road928 m away | 75 m² | 99 m² | +24 m² +32% | 2025 |
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| 22, Nelson Road870 m away | 56 m² | 80 m² | +24 m² +43% | 2024 |
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| 128, Oaklands Avenue804 m away | 56 m² | 80 m² | +24 m² +43% | 2021 |
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| 7, Elstree Gardens333 m away | 85 m² | 109 m² | +24 m² +28% | 2014 |
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| 1, Martin Close723 m away | 20 m² | 44 m² | +24 m² +120% | 2012 |
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| 32, Wellington Avenue872 m away | 85 m² | 109 m² | +24 m² +28% | 2012 |
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| 72, Westminster Road276 m away | 87 m² | 110 m² | +23 m² +26% | 2022 |
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| 5, Cambourne Avenue690 m away | 67 m² | 90 m² | +23 m² +34% | 2022 |
|---|
| 16, Stowe Gardens956 m away | 69 m² | 92 m² | +23 m² +33% | 2022 |
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| 288, Hertford Road144 m away | 72 m² | 95 m² | +23 m² +32% | 2020 |
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| 53, Southfield Road1000 m away | 103 m² | 126 m² | +23 m² +22% | 2019 |
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| 5, Scarborough Road636 m away | 72 m² | 95 m² | +23 m² +32% | 2014 |
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| 43, King Edwards Road386 m away | 91 m² | 113 m² | +22 m² +24% | 2024 |
|---|
| 2, Salmons Road715 m away | 122 m² | 144 m² | +22 m² +18% | 2023 |
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| 39, Devonshire Road529 m away | 80 m² | 102 m² | +22 m² +28% | 2022 |
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| 51, Beatrice Road680 m away | 113 m² | 135 m² | +22 m² +19% | 2019 |
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| 94, Oaklands Avenue804 m away | 70 m² | 92 m² | +22 m² +31% | 2019 |
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| 29, Colville Road378 m away | 98 m² | 120 m² | +22 m² +22% | 2016 |
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| 29, Dover Road702 m away | 88 m² | 110 m² | +22 m² +25% | 2014 |
|---|
| 14, Shirley Grove744 m away | 66 m² | 88 m² | +22 m² +33% | 2011 |
|---|
| 140, Nightingale Road561 m away | 71 m² | 93 m² | +22 m² +31% | 2010 |
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| 2, Crescent Road539 m away | 88 m² | 109 m² | +21 m² +24% | 2026 |
|---|
| 28, Nelson Road870 m away | 81 m² | 102 m² | +21 m² +26% | 2026 |
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| 37, Denny Road289 m away | 89 m² | 110 m² | +21 m² +24% | 2025 |
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| 103, Charlton Road841 m away | 68 m² | 89 m² | +21 m² +31% | 2025 |
|---|
| 20, Cornwallis Grove556 m away | 73 m² | 94 m² | +21 m² +29% | 2024 |
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| 13, Cornwallis Avenue632 m away | 72 m² | 93 m² | +21 m² +29% | 2024 |
|---|
| 117, Croyland Road765 m away | 68 m² | 89 m² | +21 m² +31% | 2022 |
|---|
| 102, Charlton Road826 m away | 103 m² | 124 m² | +21 m² +20% | 2022 |
|---|
| 300, Nightingale Road606 m away | 78 m² | 99 m² | +21 m² +27% | 2021 |
|---|
| 17, Croyland Road662 m away | 82 m² | 103 m² | +21 m² +26% | 2021 |
|---|
| 20, Oxford Close538 m away | 79 m² | 100 m² | +21 m² +27% | 2020 |
|---|
| 34, Croyland Road535 m away | 28 m² | 49 m² | +21 m² +75% | 2010 |
|---|
| 86, Chester Road271 m away | 90 m² | 110 m² | +20 m² +22% | 2026 |
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