WD3 postcode
Broadband in WD3 4LZ
Sarratt, Three Rivers
Standard broadband is the main option at this postcode.
Compare Broadband Deals →Free, independent comparison · Ofcom verified data · Updated 26 March 2026
Flood Risk
Low
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 WD3 4LZ yet.
Speed Test
Check your current download speed and see how it compares to what is available at WD3 4LZ.
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) | N/A | N/A | 300-900 Mbps |
| Gigabit | 0% | 0% | 900-1,000 Mbps |
Speed Distribution at WD3 4LZ
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 Three Rivers
Most common: Band
Annual council tax estimates for , 2024/25
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Check Deals →Living near WD3 4LZ
WD3 4LZ sits in Sarratt, part of Three Rivers. 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.
0% of premises at WD3 4LZ can access superfast broadband. The UK average is 93%. There is room for improvement here.
The speed distribution at WD3 4LZ tells a more detailed story than headline figures alone. 100% of connections fall in the below 2 Mbps range. 100% of premises get less than 5 Mbps. That is not enough for reliable video calls or streaming.
Translating the numbers at WD3 4LZ into daily use gives a clearer picture. 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. The concentration of slow connections here is significant. For households that depend on the internet, checking real speeds before moving is essential. Satellite broadband via Starlink is worth considering.
FWA broadband has not reached WD3 4LZ yet. Satellite services like Starlink or 4G home broadband routers can fill the gap where fixed-line options are limited.
75% of premises at WD3 4LZ fall below the Universal Service Obligation of 10 Mbps. Properties below the USO can request a connection from BT under the scheme. Next-generation access (NGA) reaches 100% of the area. NGA typically means speeds of 24 Mbps or above.
Flood risk at WD3 4LZ 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 WD3 4LZ 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 WD3 4LZ: remote working 50/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
WD3 4LZ falls within the Three Rivers local authority area. The immediate area is Sarratt, a distinct community within the wider district. The WD3 postcode area contains 1206 postcodes on this site. Superfast broadband across WD3 ranges from 0% to 100%.
How does WD3 4LZ compare to its neighbours? WD3 4LY (0.05 miles, sarratt) has 0% superfast coverage and 0% gigabit.
When choosing a broadband provider at WD3 4LZ, check what technology reaches your specific address. Availability varies by street and sometimes by building. 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.
Sarratt 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 WD3 4LZ? Broadband is the main concern at WD3 4LZ. With no superfast coverage, check what alternatives exist before committing. 4G home broadband, satellite, or community fibre schemes may fill the gap. Three Rivers 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. Sarratt 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 WD3 4LZ, 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.
This covers the key data for WD3 4LZ. Broadband, property, schools, safety, and local services all in one place. For area-wide trends, see the Sarratt hub page. Bookmark this page and check back as new data arrives.
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 WD3 4LZ
What are the broadband speeds available at WD3 4LZ?
Broadband is available at WD3 4LZ. Contact local providers for specific speed information.
What is the average house price near WD3 4LZ?
No recent house price data is available for WD3 4LZ.
What is the flood risk for properties at WD3 4LZ?
WD3 4LZ has a Low flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the WD3 4LZ area?
School data for WD3 4LZ is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in WD3 4LZ compare to other areas?
Crime data for this area is being updated.
How suitable is WD3 4LZ for remote working?
WD3 4LZ scores 50/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at WD3 4LZ?
4G outdoor coverage at WD3 4LZ is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near WD3 4LZ?
EPC data for WD3 4LZ is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at WD3 4LZ?
Council tax band information for WD3 4LZ is being updated.
How accessible are GP surgeries near WD3 4LZ?
GP surgery data for WD3 4LZ is being updated. Check NHS.uk for the latest.
What transport links are available near WD3 4LZ?
Transport data for WD3 4LZ is being updated.
Is WD3 4LZ a suitable area for families?
WD3 4LZ scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at WD3 4LZ?
Air quality data for WD3 4LZ is being updated.
How far is the nearest EV charging point from WD3 4LZ?
EV charging data for WD3 4LZ is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at WD3 4LZ?
Full fibre availability at WD3 4LZ is being updated. Check Openreach for the latest rollout status.
Area suitability scores
WD3 4LZRemote 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
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Area info
Parish
Sarratt
District
Three Rivers
Region
Constituency
LSOA
E01023854
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