CO4 postcode

Broadband in CO4 5NQ

Langham, Colchester

Standard broadband is the main option at this postcode.

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Free, independent comparison · Ofcom verified data

Flood Risk

Low

Fibre (FTTP)

No

Best speed

Data pending

Reviewed by Sage Mitchell

Speed Calculator

Adjust the options below to see how much broadband speed your household needs.

2
18

HD uses ~5 Mbps per person. 4K uses ~25 Mbps.

Each person on calls needs around 10 Mbps.

Competitive gaming needs low latency as much as raw speed.

Cameras, thermostats, speakers and similar devices each use a few Mbps.

Estimated speed needed14 Mbps

Your household needs approximately 14 Mbps. We don't have speed data for CO4 5NQ yet.

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Speed Test

Check your current download speed and see how it compares to what is available at CO4 5NQ.

The test downloads a 2 MB file from our server and measures how long it takes.

This test measures download speed only. Results vary depending on network conditions.

Living near CO4 5NQ

Langham covers the CO4 5NQ postcode in Colchester. Below you'll find a data-driven picture of life here. Broadband speeds from Ofcom and Ookla. Property prices from the Land Registry. Crime from Police.uk. Demographics from the ONS. Plus schools, flood risk, mobile coverage, and more. No filler. Just facts that help you decide.

Broadband at CO4 5NQ is below average. Superfast covers just 0% of premises. The UK average sits at 93%. Big gap here. Video calls may drop. Streaming will buffer. Check if 4G or 5G home broadband is an option. Some providers offer mobile broadband alternatives. No gigabit connections available yet. Top speeds listed as unknown.

Next-gen fibre infrastructure covers 0% of premises. Older copper lines serve the rest. Copper connections lose speed with distance from the exchange.

Limited house price data for CO4 5NQ. Few residential sales on record here. Could be a commercial area, new development, or rental-heavy. Land Registry only records completed sales. Rentals and new-builds under shared ownership may not appear. Check Rightmove or Zoopla for current asking prices. Talk to local estate agents for a ground-level view.

Flood risk: Low. Zone: Zone 1. Small chance of flooding. Check if the property has a history of flood claims. Air quality: Unknown.

No public EV chargers recorded nearby. Home charging would be the main option. Check Zap-Map for the latest charger locations.

4G outdoor coverage: 95%. Good coverage. Some indoor dead spots possible. Data is at local authority level from Ofcom. Street-level signal can vary. Buildings and terrain affect actual reception. Try your handset on-site before switching provider.

A note on broadband providers. Ofcom data shows what's available. Not which provider to pick. Actual speeds depend on your line, your router, and your provider. Check BT, Sky, Virgin Media, and local FTTP operators. Compare deals at broadbandcompareuk.com or uSwitch. Contract lengths vary. 18 months is standard. Some offer 12. Ask about setup fees. They range from free to £50+. Run a speed test after installation. If speeds don't match what you're paying for, complain.

Transparency matters. Broadband data: Ofcom Connected Nations 2025. House prices: Land Registry. Crime: Police.uk. Demographics: ONS Census 2021. Flood risk: Environment Agency. Speed tests: Ookla Open Data Q4 2025. Cell towers: OpenStreetMap. All free, all public.

Research is one thing. Being there is another. Walk around CO4 5NQ at different times of day. Check if the streets feel safe after dark. Look at how well homes are maintained. Visit the nearest park or green space. These things don't show up in statistics.

CO4 5NQ has its strengths and weak spots like anywhere. Use the data above as your starting point. Check providers and schools directly. Visit the area on a weekday and a weekend. Numbers only tell part of the story. The feel of a place matters too. We update these figures regularly as new data is released.

Broadband availability

Source: Ofcom Connected Nations 2025 (Jul 2025)

TechnologyAvailableCoverageTypical Speed
Standard (ADSL)0%
0%
10-20 Mbps
Superfast (30+ Mbps)0%
0%
30-80 Mbps
Ultrafast (100+ Mbps)0%
0%
100-300 Mbps
Full Fibre (FTTP)0%
0%
300-900 Mbps
Gigabit0%
0%
900-1,000 Mbps

Speed Distribution at CO4 5NQ

5–10 Mbps (100%)

Source: Ofcom Connected Nations 2025

Mobile coverage

4G & 5G coverage · Ofcom Connected Nations 2025

4G Outdoor

95%

4G Indoor

85%

5G Outdoor

%

Networks with 4G

EEO2ThreeVodafone
Ofcom Connected Nations 2025

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Map

Schools nearby

Nearest schools within 5 miles · Ofsted ratings as at Jan 2026

Schools data is currently unavailable.

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Flood risk

🟡

Flood risk: Low

This postcode is in undefined — low risk of flooding from rivers and sea.

Flood Zone

Risk Level

Low

Environment Agency

Council tax bands

Band distribution for Colchester

Most common: Band

A
5%£1,381
B
10%£1,611
C
20%£1,841
D
25%£2,071
E
20%£2,531
F
10%£2,991
G
8%£3,452
H
2%£4,142

Annual council tax estimates for , 2024/25

VOA (Valuation Office Agency)

Transport links

Nearest train stations and towns

Nearest train stations

No train stations found within 15 miles

Network Rail / National Rail · Straight-line distances

Air quality

Particulate matter & nitrogen dioxide levels

air quality

Air quality data not available.

PM2.5 (fine particles) μg/m³

WHO guideline: 15 μg/m³

PM10 (coarse particles) μg/m³

WHO guideline: 45 μg/m³

NO₂ (nitrogen dioxide) μg/m³

WHO guideline: 25 μg/m³

DEFRA UK-AIR · Guidelines: WHO 2021

Area info

Parish

Langham

District

Colchester

Region

Constituency

LSOA

E01021655

Frequently asked questions about CO4 5NQ

What are the broadband speeds available at CO4 5NQ?

Superfast broadband (30Mbps+) is available to 0% of premises at CO4 5NQ. Maximum download speeds reach not confirmed. Ultrafast coverage is at 0%.

What is the average house price near CO4 5NQ?

No recent house price data for CO4 5NQ. Few residential sales on record, or mainly commercial properties.

What is the flood risk for properties at CO4 5NQ?

CO4 5NQ has a Low flood risk rating, classified as Unknown by the Environment Agency. There is a small chance of flooding in this area.

What is the mobile signal like at CO4 5NQ?

4G outdoor coverage at CO4 5NQ is 95%, with 5G outdoor at not yet available. Networks available include EE, O2, Three, Vodafone. Data is at local authority level from Ofcom Connected Nations.

What is the most common energy efficiency rating for homes near CO4 5NQ?

EPC data is not yet available for CO4 5NQ. Energy Performance Certificates are recorded when properties are sold or rented. Check the EPC register at epc.opendatacommunities.org for individual property ratings.

What is the air quality like at CO4 5NQ?

Air quality at CO4 5NQ is rated Unknown with PM2.5 levels at not measured. Check Open-Meteo for detailed air quality forecasts.

How far is the nearest EV charging point from CO4 5NQ?

EV charging data is not yet available for CO4 5NQ. Check Zap-Map (zap-map.com) for the latest public charging locations near you.

Can I get full fibre broadband at CO4 5NQ?

Ultrafast broadband is not currently available at CO4 5NQ. Standard and superfast options may still be available. Check with providers for the latest rollout plans.

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