81.1% of homes and businesses in Chelmsford can get full fibre broadband, close to the UK figure of 81%. That's up 5.9 points in a year: 5,547 more premises can now order it. 446 still can't get 10 Mbit/s from a fixed line.
Fastest download speed available, share of all 86,129 premises (homes and businesses), January 2026.
Share of premises that can order full fibre (and gigabit, which also counts cable).
Full fibre Gigabit-capable (incl. cable)
| Chelmsford | England | UK | |
|---|---|---|---|
| Full fibre | 81.1% | 81.3% | 81% |
| Gigabit-capable | 87.9% | 88.4% | 87.8% |
| Superfast (30 Mbit/s+) | 97.8% | 97.8% | 97.7% |
| Can't get 10 Mbit/s | 0.5% | 0.6% | 0.7% |
Chelmsford ranks 182nd of 361 UK council areas for full fibre coverage (see all).
12,900 of 88,936 premises in BDUK's records (14.5%) can't get a gigabit-capable connection yet. Here's what's planned for them.
Contracted build here is due to finish by September 2030.
Average across each district's postcodes. Tap a column to sort.
| CM1 | 92% | 97% | 0.3% | 1452 |
|---|---|---|---|---|
| CM2 | 90% | 98% | 0% | 1298 |
| CM3 | 76% | 94% | 1.4% | 1564 |
| CM4 | 48% | 91% | 1.6% | 425 |
81.1% of premises in Chelmsford could order full fibre in January 2026, and 87.9% could get gigabit speeds (full fibre or cable). Coverage varies street by street, so check your postcode.
Full fibre coverage in Chelmsford went from 75.2% in January 2025 to 81.1% in January 2026: 5,547 more premises.
446 premises in Chelmsford (0.5%) can't get 10 Mbit/s download speeds from a fixed line, and 121 can't get what Ofcom calls decent broadband from a fixed line or fixed wireless.
About 53% of premises that can get full fibre in Chelmsford have taken it up. The rest are still on older copper or cable lines, often paying similar prices for slower speeds.
12,900 premises in Chelmsford can't get gigabit broadband yet. 3,768 are in a provider's own build plans, 3,062 are in a government Project Gigabit contract due to finish by September 2030, and 6,070 have no plan yet (May 2026). Enter your postcode above to see what's planned where you live.
Of the 4 postcode districts we cover for Chelmsford, CM1 has the most gigabit coverage (92% on average) and CM4 the least (48%).
99.9% of premises in Chelmsford have outdoor 5G coverage from at least one mobile network (Ofcom, high-confidence predictions, January 2026). 4G indoors from all four networks reaches 85.6%.