SL1 postcode
Broadband in SL1 8DZ
Burnham, Buckinghamshire
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data · Updated 13 March 2026
Flood Risk
Medium
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 SL1 8DZ. 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 SL1 8DZ.
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) | 92% | 92% | 100-300 Mbps |
| Full Fibre (FTTP) | 0% | 0% | 300-900 Mbps |
| Gigabit | 58% | 58% | 900-1,000 Mbps |
Speed Distribution at SL1 8DZ
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 Buckinghamshire
Most common: Band
Annual council tax estimates for , 2024/25
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Check Deals →Living near SL1 8DZ
Burnham is home to SL1 8DZ. 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 100%. Nationally, 93% of UK premises have access. Coverage at this postcode is strong. Ultrafast broadband (100 Mbps+) reaches 91.7% of properties. That is solid coverage for bandwidth-heavy households. Gigabit-capable connections cover 58.3% of premises. Gigabit is available but not yet widespread at this postcode.
The speed distribution at SL1 8DZ tells a more detailed story than headline figures alone. 8.3% of connections fall in the 30 to 300 Mbps range. 91.7% 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.
Translating the numbers at SL1 8DZ into daily use gives a clearer picture. 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 SL1 8DZ. 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 SL1 8DZ, 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 SL1 8DZ 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 SL1 8DZ 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 SL1 8DZ: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
The local authority for SL1 8DZ is Buckinghamshire. The immediate area is Burnham, a distinct community within the wider district. The SL1 postcode area contains 1497 postcodes on this site. Superfast broadband across SL1 ranges from 0% to 100%. SL1 8DZ is close to the area average of 97%.
How does SL1 8DZ compare to its neighbours? SL1 8ET (0.03 miles, burnham) has 100% superfast coverage and 0% gigabit. SL1 8DX (0.06 miles, burnham) has 100% superfast coverage and 100% gigabit. Coverage is broadly similar across these neighbouring postcodes.
When choosing a broadband provider at SL1 8DZ, 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.
Life in Burnham depends on what matters to you. Broadband, transport, and local services vary by street.
Pulling the data together for SL1 8DZ, here is what stands out. Connectivity at SL1 8DZ is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. Buckinghamshire 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. Burnham 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 Burnham. 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.
SL1 8DZ in Burnham: 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 SL1 8DZ
What are the broadband speeds available at SL1 8DZ?
Superfast broadband (30 Mbps+) is available to 100% of premises at SL1 8DZ. Ultrafast coverage is at 91.7%.
What is the average house price near SL1 8DZ?
No recent house price data is available for SL1 8DZ.
What is the flood risk for properties at SL1 8DZ?
SL1 8DZ has a Medium flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the SL1 8DZ area?
School data for SL1 8DZ is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in SL1 8DZ compare to other areas?
Crime data for this area is being updated.
How suitable is SL1 8DZ for remote working?
SL1 8DZ scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at SL1 8DZ?
4G outdoor coverage at SL1 8DZ is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near SL1 8DZ?
EPC data for SL1 8DZ is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at SL1 8DZ?
Council tax band information for SL1 8DZ is being updated.
How accessible are GP surgeries near SL1 8DZ?
GP surgery data for SL1 8DZ is being updated. Check NHS.uk for the latest.
What transport links are available near SL1 8DZ?
Transport data for SL1 8DZ is being updated.
Is SL1 8DZ a suitable area for families?
SL1 8DZ scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at SL1 8DZ?
Air quality data for SL1 8DZ is being updated.
How far is the nearest EV charging point from SL1 8DZ?
EV charging data for SL1 8DZ is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at SL1 8DZ?
Ultrafast broadband (100 Mbps+) reaches 91.7% of premises. Check Openreach and local operators for FTTP availability.
Area suitability scores
SL1 8DZRemote 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
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Area info
Parish
Burnham
District
Buckinghamshire
Region
Constituency
LSOA
E01017803
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