CM23 postcode
Broadband in CM23 1HD
Farnham, Uttlesford
Standard broadband is the main option at this postcode.
Compare Broadband Deals →Free, independent comparison · Ofcom verified data · Updated 27 March 2026
Flood Risk
Medium
Fibre (FTTP)
No
Best speed
Data pending
Speed Calculator
Adjust the options below to see how much broadband speed your household needs.
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.
Your household needs approximately 14 Mbps. We don't have speed data for CM23 1HD yet.
Speed Test
Check your current download speed and see how it compares to what is available at CM23 1HD.
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)
| Technology | Available | Coverage | Typical 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 |
| Gigabit | 0% | 0% | 900-1,000 Mbps |
Speed Distribution at CM23 1HD
Source: Ofcom Connected Nations 2025
Mobile coverage
4G & 5G coverage · Ofcom Connected Nations 2025
4G Outdoor
4G Indoor
5G Outdoor
Networks with 4G
Schools nearby
Nearest schools within 5 miles · Ofsted ratings as at Jan 2026
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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
Air quality
Particulate matter & nitrogen dioxide levels
air quality
Air quality data not available.
WHO guideline: 15 μg/m³
WHO guideline: 45 μg/m³
WHO guideline: 25 μg/m³
Transport links
Nearest train stations and towns
Nearest train stations
No train stations found within 15 miles
Council tax bands
Band distribution for Uttlesford
Most common: Band
Annual council tax estimates for , 2024/25
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Check Deals →Living near CM23 1HD
Farnham is home to CM23 1HD. Whether you live here or plan to move, the data below paints a clear picture. Broadband, schools, crime, house prices, and local services all follow. The numbers speak for themselves.
Superfast coverage here stands at 0%. Nationally, 93% of UK premises have access. Some properties may struggle with speed.
Looking at the full speed profile for CM23 1HD gives a better picture of what to expect. 66.7% of connections fall in the below 2 Mbps range. 33.3% of connections fall in the 10 to 30 Mbps range. 67% of premises get less than 5 Mbps. That is not enough for reliable video calls or streaming.
Here is how the broadband at CM23 1HD maps against common household needs. With no superfast coverage, streaming is limited. Standard definition video may work, but HD and 4K are unlikely to run smoothly. Downloading large files will take significantly longer than average. Limited superfast coverage means remote workers should test their connection carefully. Video calls may drop or pixelate. A mobile hotspot can serve as a backup.
Fixed Wireless Access is not currently available at CM23 1HD. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.
0% of premises at CM23 1HD fall below the Universal Service Obligation of 10 Mbps. 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 1HD 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.
4G outdoor coverage at CM23 1HD reaches 95%. 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 1HD: remote working 50/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
The local authority for CM23 1HD 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%.
Not every property at CM23 1HD gets the same speeds. Run a postcode check with each provider before signing up. Headline speeds are not guarantees. 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 1HD, here is what stands out. Broadband is the main concern at CM23 1HD. With no superfast coverage, check what alternatives exist before committing. 4G home broadband, satellite, or community fibre schemes may fill the gap. 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.
Data is a starting point for Farnham. Walk the streets at different times. Test your mobile signal. Check parking, noise levels, and the feel of the neighbourhood. Run a speed test on the actual connection. Some things only a visit can reveal.
CM23 1HD 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 1HD
What are the broadband speeds available at CM23 1HD?
Broadband is available at CM23 1HD. Contact local providers for specific speed information.
What is the average house price near CM23 1HD?
No recent house price data is available for CM23 1HD.
What is the flood risk for properties at CM23 1HD?
CM23 1HD has a Medium flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the CM23 1HD area?
School data for CM23 1HD is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in CM23 1HD compare to other areas?
Crime data for this area is being updated.
How suitable is CM23 1HD for remote working?
CM23 1HD scores 50/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at CM23 1HD?
4G outdoor coverage at CM23 1HD is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near CM23 1HD?
EPC data for CM23 1HD is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at CM23 1HD?
Council tax band information for CM23 1HD is being updated.
How accessible are GP surgeries near CM23 1HD?
GP surgery data for CM23 1HD is being updated. Check NHS.uk for the latest.
What transport links are available near CM23 1HD?
Transport data for CM23 1HD is being updated.
Is CM23 1HD a suitable area for families?
CM23 1HD scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at CM23 1HD?
Air quality data for CM23 1HD is being updated.
How far is the nearest EV charging point from CM23 1HD?
EV charging data for CM23 1HD is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at CM23 1HD?
Full fibre availability at CM23 1HD is being updated. Check Openreach for the latest rollout status.
Area suitability scores
CM23 1HDRemote Worker
50Based on superfast broadband coverage, FTTP %, and 4G mobile outdoor coverage.
Family
50Based on Ofsted school ratings, crime rate, flood risk, and GP surgery proximity.
Value for Money
50Based 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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