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 CM17 9DH
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 |
|---|---|---|---|---|
| Copper Beech, Harlow Common598 m away | 183 m² | 280 m² | +97 m² +53% | 2017 |
| 15, Doulton Close995 m away | 112 m² | 204 m² | +92 m² +82% | 2015 |
| 5, Oaktree Gardens243 m away | 94 m² | 185 m² | +91 m² +97% | 2022 |
| 53, Elwood873 m away | 67 m² | 140 m² | +73 m² +109% | 2015 |
| 153, Doulton Close955 m away | 83 m² | 154 m² | +71 m² +86% | 2023 |
| 30, Aynsley Gardens797 m away | 84 m² | 154 m² | +70 m² +83% | 2025 |
| Waterlees, Harlow Common718 m away | 357 m² | 426 m² | +69 m² +19% | 2026 |
| 185, Malkin Drive722 m away | 98 m² | 167 m² | +69 m² +70% | 2024 |
| 16, Hillside322 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.
| 62 m² |
| 131 m² |
| +69 m² +111% |
| 2021 |
| 41, Whieldon Grange508 m away | 152 m² | 216 m² | +64 m² +42% | 2024 |
|---|
| 3, Red Lion Crescent196 m away | 100 m² | 162 m² | +62 m² +62% | 2012 |
|---|
| 24, Burley Hill266 m away | 107 m² | 168 m² | +61 m² +57% | 2021 |
|---|
| 119, Ashworth Place828 m away | 97 m² | 158 m² | +61 m² +63% | 2019 |
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| Fivetowns, Harlow Common598 m away | 118 m² | 176 m² | +58 m² +49% | 2017 |
|---|
| 245, Malkin Drive589 m away | 60 m² | 117 m² | +57 m² +95% | 2019 |
|---|
| 79, Albert Gardens521 m away | 68 m² | 124 m² | +56 m² +82% | 2019 |
|---|
| 61, Ashworth Place858 m away | 91 m² | 145 m² | +54 m² +59% | 2025 |
|---|
| 104, Fullers Mead246 m away | 89 m² | 143 m² | +54 m² +61% | 2023 |
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| 56, Fullers Mead213 m away | 83 m² | 135 m² | +52 m² +63% | 2025 |
|---|
| 44, Malkin Drive728 m away | 120 m² | 169 m² | +49 m² +41% | 2025 |
|---|
| 2, Chamberlain Close717 m away | 49 m² | 98 m² | +49 m² +100% | 2021 |
|---|
| 74, Aynsley Gardens746 m away | 78 m² | 125 m² | +47 m² +60% | 2023 |
|---|
| 231, Potters Field110 m away | 84 m² | 131 m² | +47 m² +56% | 2010 |
|---|
| Blackbird, Red Lion Lane232 m away | 66 m² | 112 m² | +46 m² +70% | 2020 |
|---|
| 1, Chelsea Gardens778 m away | 44 m² | 88 m² | +44 m² +100% | 2021 |
|---|
| 11, Potters Field85 m away | 43 m² | 83 m² | +40 m² +93% | 2022 |
|---|
| 37, Heathcote Gardens971 m away | 102 m² | 140 m² | +38 m² +37% | 2015 |
|---|
| 73, Mallards Rise857 m away | 58 m² | 93 m² | +35 m² +60% | 2026 |
|---|
| 13, Heathcote Gardens971 m away | 121 m² | 156 m² | +35 m² +29% | 2025 |
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| 11, Hillside322 m away | 69 m² | 104 m² | +35 m² +51% | 2020 |
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| 15, Ashworth Place858 m away | 171 m² | 206 m² | +35 m² +20% | 2018 |
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| 154, Rushton Grove993 m away | 123 m² | 158 m² | +35 m² +28% | 2016 |
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| 21, Heathcote Gardens971 m away | 84 m² | 118 m² | +34 m² +40% | 2015 |
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| 2, Potter Street565 m away | 162 m² | 196 m² | +34 m² +21% | 2013 |
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| 8, Whieldon Grange508 m away | 151 m² | 184 m² | +33 m² +22% | 2025 |
|---|
| 90, Perry Spring0 m away | 71 m² | 104 m² | +33 m² +46% | 2017 |
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| 10, Burley Hill266 m away | 26 m² | 58 m² | +32 m² +123% | 2025 |
|---|
| 65, Tickenhall Drive595 m away | 53 m² | 84 m² | +31 m² +58% | 2021 |
|---|
| 47, Burley Hill266 m away | 61 m² | 91 m² | +30 m² +49% | 2025 |
|---|
| 266, Malkin Drive589 m away | 55 m² | 85 m² | +30 m² +55% | 2019 |
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| 86, Potter Street327 m away | 63 m² | 93 m² | +30 m² +48% | 2017 |
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| 148, Doulton Close955 m away | 91 m² | 121 m² | +30 m² +33% | 2015 |
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| 54, Wedgewood Drive758 m away | 67 m² | 96 m² | +29 m² +43% | 2020 |
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| 12, Heathcote Gardens971 m away | 82 m² | 111 m² | +29 m² +35% | 2020 |
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| 133, Chapel Fields446 m away | 66 m² | 95 m² | +29 m² +44% | 2016 |
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| 51, Doulton Close995 m away | 73 m² | 102 m² | +29 m² +40% | 2014 |
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| 61, Davenport724 m away | 69 m² | 97 m² | +28 m² +41% | 2024 |
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| 10, Kingsdon Lane457 m away | 108 m² | 136 m² | +28 m² +26% | 2022 |
|---|
| 2, Wayside Bungalows232 m away | 146 m² | 174 m² | +28 m² +19% | 2013 |
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| 45, Whieldon Grange508 m away | 166 m² | 193 m² | +27 m² +16% | 2025 |
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| 11, Whieldon Grange508 m away | 117 m² | 144 m² | +27 m² +23% | 2021 |
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| 175, Malkin Drive722 m away | 62 m² | 87 m² | +25 m² +40% | 2023 |
|---|
| 3, Coalport Close303 m away | 70 m² | 95 m² | +25 m² +36% | 2020 |
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| 49, Bentley Drive586 m away | 80 m² | 105 m² | +25 m² +31% | 2020 |
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| 27, Belfield Gardens423 m away | 78 m² | 102 m² | +24 m² +31% | 2013 |
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| 1, Whalebone Cottages, London Road840 m away | 105 m² | 128 m² | +23 m² +22% | 2022 |
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| 20, Brenthall Towers, Potter Street369 m away | 23 m² | 46 m² | +23 m² +100% | 2018 |
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| 30, Doulton Close995 m away | 83 m² | 106 m² | +23 m² +28% | 2013 |
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| 47, Pytt Field773 m away | 60 m² | 82 m² | +22 m² +37% | 2025 |
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| 6, Doulton Close995 m away | 54 m² | 76 m² | +22 m² +41% | 2024 |
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| 146, Spencers Croft921 m away | 75 m² | 97 m² | +22 m² +29% | 2022 |
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| 154, Malkin Drive722 m away | 78 m² | 100 m² | +22 m² +28% | 2021 |
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| 52, Albert Gardens604 m away | 58 m² | 80 m² | +22 m² +38% | 2016 |
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| 65, Albert Gardens521 m away | 58 m² | 79 m² | +21 m² +36% | 2024 |
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| 45, Mallards Rise857 m away | 58 m² | 79 m² | +21 m² +36% | 2024 |
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| 196, Malkin Drive583 m away | 105 m² | 126 m² | +21 m² +20% | 2023 |
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| 80, Coalport Close313 m away | 59 m² | 79 m² | +20 m² +34% | 2025 |
|---|
| 71, Malkin Drive728 m away | 32 m² | 52 m² | +20 m² +63% | 2023 |
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| 43, Pytt Field773 m away | 64 m² | 84 m² | +20 m² +31% | 2022 |
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| 59, Abbeydale Close531 m away | 60 m² | 80 m² | +20 m² +33% | 2020 |
|---|
| 50, Belfield Gardens423 m away | 103 m² | 123 m² | +20 m² +19% | 2015 |
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| 79, Chapel Fields475 m away | 108 m² | 128 m² | +20 m² +19% | 2015 |
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| 12, Fenton Grange654 m away | 75 m² | 95 m² | +20 m² +27% | 2013 |
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| 87, Bentley Drive559 m away | 74 m² | 93 m² | +19 m² +26% | 2026 |
|---|
| 70, Elwood800 m away | 116 m² | 135 m² | +19 m² +16% | 2024 |
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| 34, The Gardiners850 m away | 69 m² | 88 m² | +19 m² +28% | 2024 |
|---|
| 57, Chelsea Gardens778 m away | 57 m² | 76 m² | +19 m² +33% | 2023 |
|---|
| 84, Tickenhall Drive595 m away | 65 m² | 84 m² | +19 m² +29% | 2022 |
|---|
| 50, Tickenhall Drive545 m away | 59 m² | 78 m² | +19 m² +32% | 2014 |
|---|
| 106, Wedgewood Drive758 m away | 80 m² | 99 m² | +19 m² +24% | 2010 |
|---|
| 35, Hillside322 m away | 81 m² | 99 m² | +18 m² +22% | 2024 |
|---|
| 20, Bentley Drive586 m away | 82 m² | 100 m² | +18 m² +22% | 2024 |
|---|
| 67, Wedgewood Drive758 m away | 66 m² | 84 m² | +18 m² +27% | 2020 |
|---|
| 141, Doulton Close955 m away | 55 m² | 73 m² | +18 m² +33% | 2015 |
|---|
| 161, Fullers Mead368 m away | 69 m² | 87 m² | +18 m² +26% | 2014 |
|---|
| 19, Heathcote Gardens971 m away | 77 m² | 94 m² | +17 m² +22% | 2025 |
|---|
| 157, Coalport Close130 m away | 62 m² | 79 m² | +17 m² +27% | 2024 |
|---|
| 8, Potter Street565 m away | 53 m² | 70 m² | +17 m² +32% | 2024 |
|---|
| 17, Fenton Grange654 m away | 107 m² | 124 m² | +17 m² +16% | 2020 |
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| 44, Westbury Rise449 m away | 80 m² | 97 m² | +17 m² +21% | 2018 |
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| 34, Sheldon Close884 m away | 63 m² | 80 m² | +17 m² +27% | 2018 |
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| 55, The Gardiners919 m away | 53 m² | 70 m² | +17 m² +32% | 2018 |
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| 122a, Carters Mead569 m away | 30 m² | 46 m² | +16 m² +53% | 2024 |
|---|
| 80, Albert Gardens521 m away | 68 m² | 84 m² | +16 m² +24% | 2019 |
|---|
| 34, Bentley Drive586 m away | 89 m² | 105 m² | +16 m² +18% | 2016 |
|---|
| 71, Spencers Croft839 m away | 68 m² | 84 m² | +16 m² +24% | 2014 |
|---|
| 143, Doulton Close955 m away | 54 m² | 70 m² | +16 m² +30% | 2014 |
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| 92, Rushton Grove955 m away | 53 m² | 68 m² | +15 m² +28% | 2025 |
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| 12, Chelsea Gardens778 m away | 61 m² | 76 m² | +15 m² +25% | 2024 |
|---|
| 30, Westbury Rise449 m away | 63 m² | 78 m² | +15 m² +24% | 2023 |
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| 35, Coalport Close303 m away | 60 m² | 75 m² | +15 m² +25% | 2022 |
|---|
| 113a, Carters Mead569 m away | 38 m² | 53 m² | +15 m² +39% | 2019 |
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| 27, Chapel Fields616 m away | 92 m² | 107 m² | +15 m² +16% | 2019 |
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| 66, Rushton Grove883 m away | 98 m² | 113 m² | +15 m² +15% | 2018 |
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| 110, Spencers Croft900 m away | 82 m² | 97 m² | +15 m² +18% | 2015 |
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| 30, Albert Gardens604 m away | 86 m² | 101 m² | +15 m² +17% | 2013 |
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| 93, Perry Spring0 m away | 60 m² | 75 m² | +15 m² +25% | 2011 |
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| 31, Burley Hill266 m away | 59 m² | 74 m² | +15 m² +25% | 2011 |
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