CM13 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 693 postcodes across 3 sectors in Brentwood.
Full fibre
0%
Gigabit
82%
Superfast
96%
Postcodes
693
CM13 spreads across 693 postcodes in Basildon with 82.4% gigabit capacity and a 13% mid-speed share.
Broadband speeds in CM13
Share of CM13 premises by the fastest download speed available, averaged across all 693 postcodes in the district.
Gigabit via cable reaches 82.4% of premises. Speed distribution mirrors CM11: 82.5% at 300 Mbps or faster, 13% in the 30 to 300 Mbps band (the largest such share among Basildon districts in this analysis), and 1.3% below 10 Mbps. Zero below-USO and no wireless deployment. The moderate gigabit rate and substantial mid-speed segment suggest mixed cable and fibre and copper infrastructure. CM13's 13% mid-speed share is notably elevated, indicating pockets of older technology or suburban areas where fibre deployment predated gigabit cable rollout. This is not unusual for market towns; newer developments will have gigabit, whilst older quarters retain superfast. Postcode-level verification is essential before property decisions, as service varies substantially within this district.
Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.
Connectivity in detail
Below 10 Mbps USO
<1%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
0%
Premises that can use a fixed wireless access service
Broadband by sector
CM13 splits into 3 postcode sectors. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.
| Sector | Postcodes | Superfast | Full fibre | Gigabit |
|---|---|---|---|---|
| CM13 1 | 236 | 98% | 0% | 89% |
| CM13 2 | 226 | 100% | 0% | 89% |
| CM13 3 | 231 | 89% | 0% | 69% |
All CM13 1 postcodes (236)
All CM13 2 postcodes (226)
All CM13 3 postcodes (231)
Best deals
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Living in Brentwood
CM13's 13% mid-speed share is notably elevated, indicating pockets of older technology or suburban areas where fibre deployment predated gigabit cable. This is not unusual for market towns; newer developments will have gigabit, while older quarters retain superfast. Postcode-level verification is essential.
Remote worker score
54/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
CM13 broadband FAQs
What causes the wide speed split in CM13?
Older postcodes often have fibre or copper at 30 to 300 Mbps. Newer build has gigabit cable. Check your address specifically.
Is superfast broadband common here?
Yes: 13% of postcodes sit in the 30 to 300 Mbps tier, a substantial and serviceable speed band for most households.
Should I expect gigabit?
In 82.4% of postcodes, yes. In the rest, superfast or wireless. Use the Checker to confirm your postcode.
Are there investment opportunities based on speed?
Slower postcodes may see lower prices but could benefit from planned upgrades. Check council or provider timelines.
Neighbouring districts
Check your exact postcode
Every postcode in CM13 has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.
Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources