CM1 1BY — Chelmsford
Sold prices, broadband, crime and local data for the CM1 1BY postcode, UK.
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Sold house prices at CM1 1BY
| Date | Price | Address | Type |
|---|---|---|---|
| 20 Mar 2026 | £265,000 | 14 Dunn Side | Flat |
| 20 Mar 2026 | £285,000 | 50 Dunn Side | Flat |
| 5 Jun 2025 | £316,000 | 58 Dunn Side | Flat |
| 16 May 2025 | £232,000 | 106 Dunn Side | Flat |
| 11 Feb 2025 | £325,000 | 108 Dunn Side | Flat |
| 10 Jul 2024 | £290,000 | 42 Dunn Side | Flat |
| 30 Jan 2024 | £288,000 | 66 Dunn Side | Flat |
| 24 Nov 2023 | £529,700 | 26 Dunn Side | Terraced |
| 13 Oct 2023 | £293,000 | 110 Dunn Side | Flat |
| 10 Oct 2023 | £291,000 | 92 Dunn Side | Flat |
| 29 Sep 2023 | £232,500 | 82 Dunn Side | Flat |
| 5 Sep 2023 | £305,500 | 94 Dunn Side | Flat |
| 29 Aug 2023 | £305,000 | 84 Dunn Side | Flat |
| 17 Mar 2023 | £235,000 | 52 Dunn Side | Flat |
| 7 Oct 2022 | £311,000 | 78 Dunn Side | Flat |
Broadband at CM1 1BY
Superfast (30Mb+)
100%
Gigabit-capable
100%
Median download
—
Median upload
—
Figures are Ofcom availability data for this exact postcode. Use the checker above for a live lookup including mobile signal on all four networks.
Energy performance certificates at CM1 1BY
30 EPCs are registered at this postcode (England & Wales register, certificates lodged since 2012; older ones may have expired or been replaced).
| Property | Rating | Registered |
|---|---|---|
| 120 Dunn Side | Band C | Jun 2026 |
| 72 Dunn Side | Band B | Jun 2026 |
| 92 Dunn Side | Band B | May 2026 |
| 129 Dunnside | Band C | May 2026 |
| 96 Dunn Side | Band B | May 2026 |
| 74 Dunn Side | Band B | May 2026 |
| 80 Dunn Side | Band B | Apr 2026 |
| 104 Dunn Side | Band B | Apr 2026 |
| 54 Dunn Side | Band B | Apr 2026 |
| 4 Dunn Side | Band B | Apr 2026 |
| 112 Dunn Side | Band B | Apr 2026 |
| 68 Dunn Side | Band B | Apr 2026 |
| 98 Dunn Side | Band B | Apr 2026 |
| 100 Dunn Side | Band B | Apr 2026 |
| 44 Dunn Side | Band B | Mar 2026 |
Source: MHCLG Energy Performance of Buildings Data. Typical ratings for the wider district are on the CM1 area report.
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Contains HM Land Registry data © Crown copyright and database right 2026; crime data from police.uk; broadband data from Ofcom Connected Nations — Open Government Licence v3.0.