AL4 postcode
Broadband in AL4 9HJ
Hatfield, Welwyn Hatfield
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data · Updated 25 March 2026
Flood Risk
Low
Fibre (FTTP)
No
Best speed
Gigabit (1Gbps+)
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.
Gigabit broadband (Gigabit (1Gbps+)) is available at AL4 9HJ. That covers your 14 Mbps needs with room to spare.
Speed Test
Check your current download speed and see how it compares to what is available at AL4 9HJ.
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) | 73% | 73% | 10-20 Mbps |
| Superfast (30+ Mbps) | 73% | 73% | 30-80 Mbps |
| Ultrafast (100+ Mbps) | 73% | 73% | 100-300 Mbps |
| Full Fibre (FTTP) | N/A | N/A | 300-900 Mbps |
| Gigabit | 73% | 73% | 900-1,000 Mbps |
Speed Distribution at AL4 9HJ
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: Low
This postcode is in undefined — low risk of flooding from rivers and sea.
Flood Zone
Risk Level
Low
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 Welwyn Hatfield
Most common: Band
Annual council tax estimates for , 2024/25
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Looking at AL4 9HJ in Hatfield? 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 72.7%. Nationally, 93% of UK premises have access. Some properties may struggle with speed. Ultrafast broadband (100 Mbps+) reaches 72.7% of properties. Over half of premises have access to faster tiers. Gigabit-capable connections cover 72.7% of premises. Gigabit is available but not yet widespread at this postcode.
Looking at the full speed profile for AL4 9HJ gives a better picture of what to expect. 27.3% of connections fall in the 2 to 5 Mbps range. 72.7% of connections fall in the 300 Mbps or faster range. 27% of premises get less than 5 Mbps. That is not enough for reliable video calls or streaming. Over half of connections exceed 300 Mbps. That supports multiple 4K streams, large file transfers, and cloud gaming without issue.
Here is how the broadband at AL4 9HJ maps against common household needs.
FWA broadband has not reached AL4 9HJ yet. Satellite services like Starlink or 4G home broadband routers can fill the gap where fixed-line options are limited.
0% of premises at AL4 9HJ 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 AL4 9HJ is rated Low. Minor precautions may be worth considering. Check with insurers about any loading on premiums.
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 AL4 9HJ 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 AL4 9HJ: remote working 35/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
The local authority for AL4 9HJ is Welwyn Hatfield. The immediate area is Hatfield, a distinct community within the wider district. The AL4 postcode area contains 778 postcodes on this site. Superfast broadband across AL4 ranges from 0% to 100%. AL4 9HJ is below the area average of 94%.
Broadband availability varies by provider and by property. At AL4 9HJ, 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.
Hatfield offers a mix of residential properties and local amenities. The character of any area is best judged in person.
What does all of this mean for someone considering AL4 9HJ? Welwyn Hatfield 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. Hatfield 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 Hatfield. 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.
AL4 9HJ in Hatfield: 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 AL4 9HJ
What are the broadband speeds available at AL4 9HJ?
Superfast broadband (30 Mbps+) is available to 72.7% of premises at AL4 9HJ. Ultrafast coverage is at 72.7%.
What is the average house price near AL4 9HJ?
No recent house price data is available for AL4 9HJ.
What is the flood risk for properties at AL4 9HJ?
AL4 9HJ has a Low flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the AL4 9HJ area?
School data for AL4 9HJ is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in AL4 9HJ compare to other areas?
Crime data for this area is being updated.
How suitable is AL4 9HJ for remote working?
AL4 9HJ scores 35/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at AL4 9HJ?
4G outdoor coverage at AL4 9HJ is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near AL4 9HJ?
EPC data for AL4 9HJ is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at AL4 9HJ?
Council tax band information for AL4 9HJ is being updated.
How accessible are GP surgeries near AL4 9HJ?
GP surgery data for AL4 9HJ is being updated. Check NHS.uk for the latest.
What transport links are available near AL4 9HJ?
Transport data for AL4 9HJ is being updated.
Is AL4 9HJ a suitable area for families?
AL4 9HJ scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at AL4 9HJ?
Air quality data for AL4 9HJ is being updated.
How far is the nearest EV charging point from AL4 9HJ?
EV charging data for AL4 9HJ is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at AL4 9HJ?
Ultrafast broadband (100 Mbps+) reaches 72.7% of premises. Check Openreach and local operators for FTTP availability.
Area suitability scores
AL4 9HJRemote 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
Hatfield
District
Welwyn Hatfield
Region
Constituency
LSOA
E01033313
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