CM23 postcode
Broadband in CM23 1HA
Bishop's Stortford, East Hertfordshire
Superfast broadband covers 33.3% of premises here.
Free, independent comparison · Ofcom verified data · Updated 25 March 2026
Flood Risk
Medium
Fibre (FTTP)
No
Best speed
~30 Mbps
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.
The best available speed at CM23 1HA is ~30 Mbps. That covers your 14 Mbps estimate.
Speed Test
Check your current download speed and see how it compares to what is available at CM23 1HA.
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) | 33% | 33% | 10-20 Mbps |
| Superfast (30+ Mbps) | 33% | 33% | 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 1HA
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 East Hertfordshire
Most common: Band
Annual council tax estimates for , 2024/25
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Check Deals →Living near CM23 1HA
CM23 1HA sits in Bishop's Stortford, part of East Hertfordshire. This guide covers broadband speeds, house prices, schools, and more. Every figure comes from verified public data sources. Use it alongside your own research when comparing areas.
Superfast coverage here stands at 33.3%. Nationally, 93% of UK premises have access. Some properties may struggle with speed.
The speed distribution at CM23 1HA tells a more detailed story than headline figures alone. 66.7% of connections fall in the 10 to 30 Mbps range. 33.3% of connections fall in the 30 to 300 Mbps range. No premises here are stuck below 5 Mbps. Every property meets the basic threshold for video calls.
What do the broadband speeds at CM23 1HA mean in practice? Superfast coverage is limited here. Streaming HD video should work on one device. Multiple simultaneous streams may struggle during peak hours.
Fixed Wireless Access is not currently available at CM23 1HA. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.
The USO guarantees every UK home at least 10 Mbps. At CM23 1HA, 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 1HA 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 1HA 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. Strong 4G coverage combined with limited fixed broadband means 4G home broadband could be a practical alternative here.
Suitability scores for CM23 1HA: remote working 35/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
The local authority for CM23 1HA is East Hertfordshire. The immediate area is Bishop's Stortford, 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 1HA is below the area average of 97%.
Broadband availability varies by provider and by property. At CM23 1HA, 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.
Life in Bishop's Stortford depends on what matters to you. Broadband, transport, and local services vary by street.
Pulling the data together for CM23 1HA, here is what stands out. East Hertfordshire 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. Bishop's Stortford 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 Bishop's Stortford. 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.
That is the full data picture for CM23 1HA in Bishop's Stortford. Use it alongside your own research. For the most current broadband speeds, run a live speed test from this page. Check back periodically as data is refreshed with new releases.
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 1HA
What are the broadband speeds available at CM23 1HA?
Superfast broadband (30 Mbps+) is available to 33.3% of premises at CM23 1HA.
What is the average house price near CM23 1HA?
No recent house price data is available for CM23 1HA.
What is the flood risk for properties at CM23 1HA?
CM23 1HA has a Medium flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the CM23 1HA area?
School data for CM23 1HA is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in CM23 1HA compare to other areas?
Crime data for this area is being updated.
How suitable is CM23 1HA for remote working?
CM23 1HA scores 35/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at CM23 1HA?
4G outdoor coverage at CM23 1HA is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near CM23 1HA?
EPC data for CM23 1HA is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at CM23 1HA?
Council tax band information for CM23 1HA is being updated.
How accessible are GP surgeries near CM23 1HA?
GP surgery data for CM23 1HA is being updated. Check NHS.uk for the latest.
What transport links are available near CM23 1HA?
Transport data for CM23 1HA is being updated.
Is CM23 1HA a suitable area for families?
CM23 1HA scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at CM23 1HA?
Air quality data for CM23 1HA is being updated.
How far is the nearest EV charging point from CM23 1HA?
EV charging data for CM23 1HA is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at CM23 1HA?
Full fibre availability at CM23 1HA is being updated. Check Openreach for the latest rollout status.
Area suitability scores
CM23 1HARemote Worker
35Based 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
Bishop's Stortford
District
East Hertfordshire
Region
Constituency
LSOA
E01035590
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