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 HP12 4LU
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 |
|---|---|---|---|---|
| Ave-An-Rose, Highfield Avenue506 m away | 87 m² | 205 m² | +118 m² +136% | 2025 |
| 245, Rutland Avenue688 m away | 107 m² | 221 m² | +114 m² +107% | 2019 |
| 23, New Road Close232 m away | 89 m² | 197 m² | +108 m² +121% | 2020 |
| 134, Chiltern Avenue662 m away | 89 m² | 197 m² | +108 m² +121% | 2015 |
| 11a, Mentmore Road0 m away | 69 m² | 167 m² | +98 m² +142% | 2015 |
| 8, Fraser Road496 m away | 88 m² | 178 m² | +90 m² +102% | 2026 |
| Sunnyside, Pinewood Road677 m away | 75 m² | 161 m² | +86 m² +115% | 2023 |
| 83, Laburnum Road458 m away | 66 m² | 149 m² | +83 m² +126% | 2020 |
| 32, Highwood Avenue105 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.
| 90 m² |
| 165 m² |
| +75 m² +83% |
| 2025 |
| 115, Lane End Road496 m away | 72 m² | 145 m² | +73 m² +101% | 2024 |
|---|
| 10, Oak Crescent984 m away | 77 m² | 146 m² | +69 m² +90% | 2015 |
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| 1, Barbers Wood Road678 m away | 88 m² | 155 m² | +67 m² +76% | 2023 |
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| 48a, Booker Lane931 m away | 86 m² | 147 m² | +61 m² +71% | 2016 |
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| Narnia, Pinewood Road908 m away | 100 m² | 160 m² | +60 m² +60% | 2015 |
|---|
| 74, New Road410 m away | 93 m² | 151 m² | +58 m² +62% | 2020 |
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| 128, New Road320 m away | 63 m² | 116 m² | +53 m² +84% | 2023 |
|---|
| 13, The Coppice807 m away | 33 m² | 80 m² | +47 m² +142% | 2011 |
|---|
| 82, Bookerhill Road276 m away | 92 m² | 137 m² | +45 m² +49% | 2016 |
|---|
| 4, Rowliff Road566 m away | 76 m² | 121 m² | +45 m² +59% | 2016 |
|---|
| 14, Rydal Way361 m away | 82 m² | 126 m² | +44 m² +54% | 2022 |
|---|
| 291, Rutland Avenue688 m away | 84 m² | 128 m² | +44 m² +52% | 2018 |
|---|
| 54, Grenfell Avenue767 m away | 86 m² | 129 m² | +43 m² +50% | 2022 |
|---|
| 94, Whitelands Road990 m away | 90 m² | 132 m² | +42 m² +47% | 2024 |
|---|
| 19, Rydal Way361 m away | 84 m² | 126 m² | +42 m² +50% | 2020 |
|---|
| 69, Spearing Road697 m away | 57 m² | 99 m² | +42 m² +74% | 2017 |
|---|
| Janeross, Highfield Avenue506 m away | 96 m² | 137 m² | +41 m² +43% | 2024 |
|---|
| 240, New Road932 m away | 86 m² | 127 m² | +41 m² +48% | 2023 |
|---|
| 25, New Road Close232 m away | 89 m² | 130 m² | +41 m² +46% | 2018 |
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| 174, Rutland Avenue604 m away | 103 m² | 143 m² | +40 m² +39% | 2026 |
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| 34, Arundel Road149 m away | 84 m² | 122 m² | +38 m² +45% | 2026 |
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| 28, New Road410 m away | 88 m² | 126 m² | +38 m² +43% | 2024 |
|---|
| 283, Rutland Avenue688 m away | 120 m² | 157 m² | +37 m² +31% | 2014 |
|---|
| 216, Rutland Avenue612 m away | 81 m² | 117 m² | +36 m² +44% | 2025 |
|---|
| 115, New Road576 m away | 90 m² | 126 m² | +36 m² +40% | 2024 |
|---|
| 120, Chairborough Road927 m away | 75 m² | 111 m² | +36 m² +48% | 2016 |
|---|
| 44, New Road410 m away | 114 m² | 149 m² | +35 m² +31% | 2025 |
|---|
| 118, Chapel Lane881 m away | 90 m² | 125 m² | +35 m² +39% | 2022 |
|---|
| 66, Arundel Road272 m away | 71 m² | 106 m² | +35 m² +49% | 2016 |
|---|
| 25, Bookerhill Road250 m away | 89 m² | 123 m² | +34 m² +38% | 2023 |
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| 152, New Road320 m away | 85 m² | 119 m² | +34 m² +40% | 2023 |
|---|
| 177, Spearing Road510 m away | 77 m² | 110 m² | +33 m² +43% | 2026 |
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| Copperfield, Pinewood Road677 m away | 80 m² | 112 m² | +32 m² +40% | 2016 |
|---|
| Foxhill, Heathfield Road870 m away | 147 m² | 178 m² | +31 m² +21% | 2024 |
|---|
| 3, Barbers Wood Close711 m away | 124 m² | 155 m² | +31 m² +25% | 2016 |
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| 7, Wychwood Gardens332 m away | 44 m² | 75 m² | +31 m² +70% | 2014 |
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| 88, Whitelands Road990 m away | 89 m² | 120 m² | +31 m² +35% | 2013 |
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| 19, Youens Road518 m away | 110 m² | 140 m² | +30 m² +27% | 2026 |
|---|
| 59a, Arundel Road272 m away | 70 m² | 100 m² | +30 m² +43% | 2023 |
|---|
| 17, New Road642 m away | 75 m² | 104 m² | +29 m² +39% | 2023 |
|---|
| 37, Highwood Avenue267 m away | 88 m² | 117 m² | +29 m² +33% | 2022 |
|---|
| 16, The Coppice807 m away | 98 m² | 127 m² | +29 m² +30% | 2015 |
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| 78a, Booker Lane760 m away | 42 m² | 70 m² | +28 m² +67% | 2019 |
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| 65, Chiltern Avenue701 m away | 55 m² | 83 m² | +28 m² +51% | 2016 |
|---|
| 4, Middle Way550 m away | 63 m² | 91 m² | +28 m² +44% | 2013 |
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| Ashiyana, 156, Spearing Road507 m away | 70 m² | 97 m² | +27 m² +39% | 2024 |
|---|
| 6a, Lane End Road645 m away | 57 m² | 84 m² | +27 m² +47% | 2013 |
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| 39, Squirrel Lane666 m away | 117 m² | 143 m² | +26 m² +22% | 2025 |
|---|
| 120, Arundel Road212 m away | 71 m² | 97 m² | +26 m² +37% | 2014 |
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| 95, Laburnum Road458 m away | 64 m² | 89 m² | +25 m² +39% | 2016 |
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| 99, Chiltern Avenue708 m away | 89 m² | 113 m² | +24 m² +27% | 2016 |
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| 7, Woodland Close252 m away | 90 m² | 113 m² | +23 m² +26% | 2025 |
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| 88, Arundel Road206 m away | 91 m² | 114 m² | +23 m² +25% | 2023 |
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| Valley View, Hylton Road728 m away | 89 m² | 112 m² | +23 m² +26% | 2013 |
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| 68, Lane End Road645 m away | 63 m² | 86 m² | +23 m² +37% | 2011 |
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| 300, Rutland Avenue651 m away | 64 m² | 86 m² | +22 m² +34% | 2018 |
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| 99, Chairborough Road927 m away | 88 m² | 110 m² | +22 m² +25% | 2016 |
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| 75, Lane End Road645 m away | 51 m² | 72 m² | +21 m² +41% | 2020 |
|---|
| 77, Laburnum Road458 m away | 64 m² | 85 m² | +21 m² +33% | 2016 |
|---|
| 173, Spearing Road510 m away | 76 m² | 97 m² | +21 m² +28% | 2016 |
|---|
| 16, Field Road145 m away | 89 m² | 110 m² | +21 m² +24% | 2014 |
|---|
| 67, Chiltern Avenue701 m away | 63 m² | 83 m² | +20 m² +32% | 2016 |
|---|
| 18, Mentmore Close77 m away | 120 m² | 140 m² | +20 m² +17% | 2015 |
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| 277a, Rutland Avenue688 m away | 52 m² | 72 m² | +20 m² +38% | 2014 |
|---|
| 4, Warwick Avenue225 m away | 71 m² | 90 m² | +19 m² +27% | 2015 |
|---|
| 25, Fraser Road528 m away | 80 m² | 99 m² | +19 m² +24% | 2014 |
|---|
| 153, Chairborough Road845 m away | 107 m² | 125 m² | +18 m² +17% | 2026 |
|---|
| 113, Spearing Road697 m away | 67 m² | 84 m² | +17 m² +25% | 2024 |
|---|
| 77, Spearing Road697 m away | 70 m² | 87 m² | +17 m² +24% | 2022 |
|---|
| 164, Chairborough Road845 m away | 77 m² | 94 m² | +17 m² +22% | 2014 |
|---|
| 64, Chiltern Avenue701 m away | 103 m² | 120 m² | +17 m² +17% | 2013 |
|---|
| 18, Bookerhill Road250 m away | 89 m² | 105 m² | +16 m² +18% | 2026 |
|---|
| 9, Squirrel Lane693 m away | 79 m² | 95 m² | +16 m² +20% | 2024 |
|---|
| 4, Bookerhill Road250 m away | 84 m² | 100 m² | +16 m² +19% | 2021 |
|---|
| 37, Fraser Road528 m away | 80 m² | 96 m² | +16 m² +20% | 2016 |
|---|
| 37, Arundel Road149 m away | 82 m² | 97 m² | +15 m² +18% | 2017 |
|---|
| 14a, Hylton Road728 m away | 71 m² | 86 m² | +15 m² +21% | 2017 |
|---|
| 113c, Whitelands Road809 m away | 45 m² | 60 m² | +15 m² +33% | 2016 |
|---|
| 235, Rutland Avenue612 m away | 88 m² | 103 m² | +15 m² +17% | 2015 |
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