CM2 DISTRICT · CHELMSFORD
Great Baddow mobile coverage Three 100% indoors here, 83% across Chelmsford CM2 · Chelmsford
No network wins CM2 on overall coverage: all four score 100/100.
CM2: Great Baddow, Sandon, Boreham, Writtle, Galleywood, Margaretting, West Hanningfield, Chelmer.
CM2 scores
=
EE
=
O2
=
Three
=
Vodafone
Ofcom Mobile Coverage data (May 2025), measured across 175 addresses in 6 sampled postcodes: CM2 0TD, CM2 7NG, CM2 9DX, CM2 9JU, CM2 9RA, CM2 9TF. Methodology.
How CM2 compares
Against the Chelmsford average
- Three indoors: 100% here, 83% across Chelmsford (+17).
Weakest spot in Chelmsford: CM9 Maldon, where Three reaches 50% indoors.
Indoor signal around CM2
| District | km away | EE | O2 | Three | Vodafone |
|---|---|---|---|---|---|
| CM2 Great Baddow (here) | – | 100% | 100% | 100% | 100% |
| CM1 Writtle, Broomfield | 4 | 100% | 100% | 100% | 100% |
| CM3 Hanningfield, Sandon | 7 | 100% | 96% | 100% | 63% |
| CM4 Billericay, Margaretting | 8 | 100% | 100% | 100% | 100% |
| CM8 Witham, Cressing | 14 | 100% | 100% | 100% | 100% |
| Chelmsford average | – | 97% | 98% | 83% | 93% |
Biggest difference nearby: Vodafone indoors, 100% here and 63% in CM3 Hanningfield, 7 km away.
Compare plans
1pMobile runs on EE's network: £5 a month for 5GB (read 19 October 2026). A price, not a coverage ranking: Ofcom separates no network here.
1pMobile plans →Some links on this page are affiliate links. How we rank.