CM23 postcode

Broadband in CM23 1HS

Farnham, Uttlesford

Gigabit broadband is available at this postcode.

Best speedGigabit (1Gbps+)
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 7 March 2026

Flood Risk

Medium

Fibre (FTTP)

No

Best speed

Gigabit (1Gbps+)

Reviewed by Arthur TuringData last verified: 7 March 2026

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

Gigabit broadband (Gigabit (1Gbps+)) is available at CM23 1HS. That covers your 14 Mbps needs with room to spare.

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Speed Test

Check your current download speed and see how it compares to what is available at CM23 1HS.

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.

Broadband availability

Source: Ofcom Connected Nations 2025 (Jul 2025)

TechnologyAvailableCoverageTypical Speed
Standard (ADSL)100%
100%
10-20 Mbps
Superfast (30+ Mbps)100%
100%
30-80 Mbps
Ultrafast (100+ Mbps)100%
100%
100-300 Mbps
Full Fibre (FTTP)0%
0%
300-900 Mbps
Gigabit100%
100%
900-1,000 Mbps

Speed Distribution at CM23 1HS

100%
300+ 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

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: Medium

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

Flood Zone

Risk Level

Medium

Environment Agency

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

Transport links

Nearest train stations and towns

Nearest train stations

No train stations found within 15 miles

Network Rail / National Rail · Straight-line distances

Council tax bands

Band distribution for Uttlesford

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)

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Living near CM23 1HS

Looking at CM23 1HS in Farnham? Here is what the data says. From broadband coverage to crime rates, this is the full picture. All numbers are from official sources. The guide is updated as new data becomes available.

Superfast coverage here stands at 100%. Nationally, 93% of UK premises have access. Coverage at this postcode is strong. Ultrafast broadband (100 Mbps+) reaches 100% of properties. That is solid coverage for bandwidth-heavy households. Gigabit-capable connections cover 100% of premises. Most homes can access gigabit speeds if they choose to.

Here is how broadband speeds break down across premises at CM23 1HS. 100% of connections fall in the 300 Mbps or faster range. No premises here are stuck below 5 Mbps. Every property meets the basic threshold for video calls. Over half of connections exceed 300 Mbps. That supports multiple 4K streams, large file transfers, and cloud gaming without issue.

Translating the numbers at CM23 1HS into daily use gives a clearer picture. Most premises have superfast speeds. Remote working with video calls and cloud tools should be manageable for most households.

FWA broadband has not reached CM23 1HS yet. Satellite services like Starlink or 4G home broadband routers can fill the gap where fixed-line options are limited.

The USO guarantees every UK home at least 10 Mbps. At CM23 1HS, 0% of properties do not meet this threshold. Every property here meets the minimum standard. That is not the case everywhere. Next-generation access (NGA) reaches 100% of the area. NGA typically means speeds of 24 Mbps or above.

Flood risk at CM23 1HS is rated Medium. Check Environment Agency flood maps for detailed information. Specialist flood insurance may be needed.

The three most common bands are D (25%), C (20%), E (20%). Band D corresponds to 1991 property values of £68,001 to £88,000. Current values are typically much higher. The spread across mid-range bands suggests a varied housing stock.

Outdoor 4G mobile signal at CM23 1HS is available across 95% of the area. Indoor 4G drops to 85%. Some signal loss indoors is normal. Most calls and data should still work inside. Coverage data covers EE, O2, Three, Vodafone. Check each operator individually, as coverage varies by network.

Suitability scores for CM23 1HS: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

The local authority for CM23 1HS is Uttlesford. The immediate area is Farnham, a distinct community within the wider district. The CM23 postcode area contains 1097 postcodes on this site. Superfast broadband across CM23 ranges from 0% to 100%. CM23 1HS is close to the area average of 97%.

How does CM23 1HS compare to its neighbours? CM23 1HT (0.04 miles, farnham) has 100% superfast coverage and 95% gigabit. CM23 1HR (0.05 miles, farnham) has 100% superfast coverage and 66.7% gigabit. Coverage is broadly similar across these neighbouring postcodes.

Broadband availability varies by provider and by property. At CM23 1HS, check individual coverage tools from BT, Sky, Virgin Media, and local operators. If fibre is unavailable, consider 4G home broadband or satellite as alternatives. Speeds may still be adequate for most uses. Compare contract lengths, total costs over the term, and exit fees. The cheapest monthly rate is not always the best deal.

Every part of Farnham has its own feel. This data gives you the factual starting point. A visit fills in the rest.

Pulling the data together for CM23 1HS, here is what stands out. Connectivity at CM23 1HS is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. Uttlesford as a local authority area has its own planning priorities, council services, and infrastructure investment plans. Check the council website for the latest. The data covers what can be measured. Farnham has its own character that numbers alone cannot capture. Use these figures as a filter, then visit to get the full picture.

Data sources include Ofcom (broadband and mobile), Land Registry (house prices), Police.uk (crime), Ofsted (schools), Environment Agency (flood risk), and Open-Meteo (air quality). Council tax data comes from the Valuation Office Agency. EPC data is from DLUHC. Transport data uses NaPTAN. Speed distribution figures are from Ofcom Connected Nations. All figures are the latest available at the time of writing.

Before making a decision about CM23 1HS, visit in person. Check the commute at rush hour. Try the mobile signal indoors. Look at local shops and green spaces. Ask about broadband reliability, not just speed. Data sets the scene, but real life fills in the gaps.

CM23 1HS in Farnham: broadband, house prices, crime, schools, and more. All from verified sources. Run a speed test above for a live reading. Compare with nearby postcodes to see how this area stacks up against its neighbours.

More local data is being added for this postcode

This page already has postcode-specific content, and more data-backed sections will appear as the remaining local datasets finish processing.

Frequently asked questions about CM23 1HS

What are the broadband speeds available at CM23 1HS?

Superfast broadband (30 Mbps+) is available to 100% of premises at CM23 1HS. Ultrafast coverage is at 100%.

What is the average house price near CM23 1HS?

No recent house price data is available for CM23 1HS.

What is the flood risk for properties at CM23 1HS?

CM23 1HS has a Medium flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the CM23 1HS area?

School data for CM23 1HS is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in CM23 1HS compare to other areas?

Crime data for this area is being updated.

How suitable is CM23 1HS for remote working?

CM23 1HS scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at CM23 1HS?

4G outdoor coverage at CM23 1HS is 95%. Indoor coverage may be lower.

What is the most common energy efficiency rating near CM23 1HS?

EPC data for CM23 1HS is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at CM23 1HS?

Council tax band information for CM23 1HS is being updated.

How accessible are GP surgeries near CM23 1HS?

GP surgery data for CM23 1HS is being updated. Check NHS.uk for the latest.

What transport links are available near CM23 1HS?

Transport data for CM23 1HS is being updated.

Is CM23 1HS a suitable area for families?

CM23 1HS scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at CM23 1HS?

Air quality data for CM23 1HS is being updated.

How far is the nearest EV charging point from CM23 1HS?

EV charging data for CM23 1HS is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at CM23 1HS?

Ultrafast broadband (100 Mbps+) reaches 100% of premises. Check Openreach and local operators for FTTP availability.

Area suitability scores

CM23 1HS

Remote Worker

55

Based on superfast broadband coverage, FTTP %, and 4G mobile outdoor coverage.

Family

50

Based on Ofsted school ratings, crime rate, flood risk, and GP surgery proximity.

Value for Money

50

Based on broadband quality relative to average house price in the area.

Map

Area info

Parish

Farnham

District

Uttlesford

Region

Constituency

LSOA

E01022089

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