SL4 postcode
Broadband in SL4 4SZ
Winkfield, Bracknell Forest
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data · Updated 20 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 SL4 4SZ. 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 SL4 4SZ.
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) | 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 |
| Gigabit | 100% | 100% | 900-1,000 Mbps |
Speed Distribution at SL4 4SZ
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 Bracknell Forest
Most common: Band
Annual council tax estimates for , 2024/25
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Check Deals →Living near SL4 4SZ
Winkfield is home to SL4 4SZ. 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.
100% of premises at SL4 4SZ can access superfast broadband. The UK average is 93%. This postcode meets or exceeds that benchmark. 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.
The speed distribution at SL4 4SZ tells a more detailed story than headline figures alone. 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.
Here is how the broadband at SL4 4SZ maps against common household needs. Most premises have superfast speeds. Remote working with video calls and cloud tools should be manageable for most households.
Fixed Wireless Access is not currently available at SL4 4SZ. 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 SL4 4SZ, 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 SL4 4SZ 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 SL4 4SZ 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 SL4 4SZ: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
SL4 4SZ falls within the Bracknell Forest local authority area. The immediate area is Winkfield, a distinct community within the wider district. The SL4 postcode area contains 1282 postcodes on this site. Superfast broadband across SL4 ranges from 0% to 100%. SL4 4SZ is above the area average of 93%.
How does SL4 4SZ compare to its neighbours? SL4 4TG (0.03 miles, winkfield) has 100% superfast coverage and 100% gigabit. SL4 4TB (0.03 miles, winkfield) has 100% superfast coverage and 100% gigabit. SL4 4FB (0.04 miles, winkfield) has 100% superfast coverage and 100% gigabit. SL4 4TF (0.04 miles, winkfield) has 100% superfast coverage and 94.7% gigabit. Coverage is broadly similar across these neighbouring postcodes.
Not every property at SL4 4SZ 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.
Winkfield 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 SL4 4SZ? Connectivity at SL4 4SZ is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. Bracknell Forest 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. Winkfield 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 Winkfield. 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 SL4 4SZ in Winkfield. 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 SL4 4SZ
What are the broadband speeds available at SL4 4SZ?
Superfast broadband (30 Mbps+) is available to 100% of premises at SL4 4SZ. Ultrafast coverage is at 100%.
What is the average house price near SL4 4SZ?
No recent house price data is available for SL4 4SZ.
What is the flood risk for properties at SL4 4SZ?
SL4 4SZ has a Low flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the SL4 4SZ area?
School data for SL4 4SZ is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in SL4 4SZ compare to other areas?
Crime data for this area is being updated.
How suitable is SL4 4SZ for remote working?
SL4 4SZ scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at SL4 4SZ?
4G outdoor coverage at SL4 4SZ is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near SL4 4SZ?
EPC data for SL4 4SZ is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at SL4 4SZ?
Council tax band information for SL4 4SZ is being updated.
How accessible are GP surgeries near SL4 4SZ?
GP surgery data for SL4 4SZ is being updated. Check NHS.uk for the latest.
What transport links are available near SL4 4SZ?
Transport data for SL4 4SZ is being updated.
Is SL4 4SZ a suitable area for families?
SL4 4SZ scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at SL4 4SZ?
Air quality data for SL4 4SZ is being updated.
How far is the nearest EV charging point from SL4 4SZ?
EV charging data for SL4 4SZ is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at SL4 4SZ?
Ultrafast broadband (100 Mbps+) reaches 100% of premises. Check Openreach and local operators for FTTP availability.
Area suitability scores
SL4 4SZRemote Worker
55Based 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
Winkfield
District
Bracknell Forest
Region
Constituency
LSOA
E01016252
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