SL4 postcode

Broadband in SL4 2JQ

Windsor and Maidenhead, Windsor and Maidenhead

Superfast broadband covers 32.5% of premises here.

Best speed~30 Mbps
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 21 March 2026

Flood Risk

High

Fibre (FTTP)

No

Best speed

~30 Mbps

Reviewed by Sage MitchellData last verified: 21 March 2026

Speed Calculator

Adjust the options below to see how much broadband speed your household needs.

2
18

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.

Estimated speed needed14 Mbps

The best available speed at SL4 2JQ is ~30 Mbps. That covers your 14 Mbps estimate.

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Speed Test

Check your current download speed and see how it compares to what is available at SL4 2JQ.

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)

TechnologyAvailableCoverageTypical 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
Gigabit0%
0%
900-1,000 Mbps

Speed Distribution at SL4 2JQ

2–5 Mbps (5%)
10–30 Mbps (63%)
30–300 Mbps (33%)

Source: Ofcom Connected Nations 2025

Mobile coverage

4G & 5G coverage · Ofcom Connected Nations 2025

4G Outdoor

95%

4G Indoor

85%

5G Outdoor

%

Networks with 4G

EEO2ThreeVodafone
Ofcom Connected Nations 2025

Schools nearby

Nearest schools within 5 miles · Ofsted ratings as at Jan 2026

Schools data is currently unavailable.

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Flood risk

🔴

Flood risk: High

This postcode is in undefined — high risk of flooding from rivers and sea.

Flood Zone

Risk Level

High

Environment Agency

Air quality

Particulate matter & nitrogen dioxide levels

air quality

Air quality data not available.

PM2.5 (fine particles) μg/m³

WHO guideline: 15 μg/m³

PM10 (coarse particles) μg/m³

WHO guideline: 45 μg/m³

NO₂ (nitrogen dioxide) μg/m³

WHO guideline: 25 μg/m³

DEFRA UK-AIR · Guidelines: WHO 2021

Transport links

Nearest train stations and towns

Nearest train stations

No train stations found within 15 miles

Network Rail / National Rail · Straight-line distances

Council tax bands

Band distribution for Windsor and Maidenhead

Most common: Band

A
5%£1,381
B
10%£1,611
C
20%£1,841
D
25%£2,071
E
20%£2,531
F
10%£2,991
G
8%£3,452
H
2%£4,142

Annual council tax estimates for , 2024/25

VOA (Valuation Office Agency)

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Living near SL4 2JQ

Looking at SL4 2JQ in Windsor and Maidenhead? 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 32.5%. Nationally, 93% of UK premises have access. Some properties may struggle with speed.

Looking at the full speed profile for SL4 2JQ gives a better picture of what to expect. 5% of connections fall in the 2 to 5 Mbps range. 62.5% of connections fall in the 10 to 30 Mbps range. 32.5% of connections fall in the 30 to 300 Mbps range.

What do the broadband speeds at SL4 2JQ mean in practice? Superfast coverage is limited here. Streaming HD video should work on one device. Multiple simultaneous streams may struggle during peak hours.

FWA broadband has not reached SL4 2JQ yet. Satellite services like Starlink or 4G home broadband routers can fill the gap where fixed-line options are limited.

The USO guarantees every UK home at least 10 Mbps. At SL4 2JQ, 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 47.5% of the area. NGA typically means speeds of 24 Mbps or above.

Flood risk at SL4 2JQ is rated High. 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 SL4 2JQ 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. Strong 4G coverage combined with limited fixed broadband means 4G home broadband could be a practical alternative here.

Suitability scores for SL4 2JQ: remote working 35/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

The local authority for SL4 2JQ is Windsor and Maidenhead. The SL4 postcode area contains 1282 postcodes on this site. Superfast broadband across SL4 ranges from 0% to 100%. SL4 2JQ is below the area average of 93%.

Broadband availability varies by provider and by property. At SL4 2JQ, 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.

Every part of Windsor and Maidenhead has its own feel. This data gives you the factual starting point. A visit fills in the rest.

What does all of this mean for someone considering SL4 2JQ? Windsor and Maidenhead 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. Windsor and Maidenhead 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 Windsor and Maidenhead. 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.

SL4 2JQ in Windsor and Maidenhead: 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 SL4 2JQ

What are the broadband speeds available at SL4 2JQ?

Superfast broadband (30 Mbps+) is available to 32.5% of premises at SL4 2JQ.

What is the average house price near SL4 2JQ?

No recent house price data is available for SL4 2JQ.

What is the flood risk for properties at SL4 2JQ?

SL4 2JQ has a High flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the SL4 2JQ area?

School data for SL4 2JQ is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in SL4 2JQ compare to other areas?

Crime data for this area is being updated.

How suitable is SL4 2JQ for remote working?

SL4 2JQ scores 35/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at SL4 2JQ?

4G outdoor coverage at SL4 2JQ is 95%. Indoor coverage may be lower.

What is the most common energy efficiency rating near SL4 2JQ?

EPC data for SL4 2JQ is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at SL4 2JQ?

Council tax band information for SL4 2JQ is being updated.

How accessible are GP surgeries near SL4 2JQ?

GP surgery data for SL4 2JQ is being updated. Check NHS.uk for the latest.

What transport links are available near SL4 2JQ?

Transport data for SL4 2JQ is being updated.

Is SL4 2JQ a suitable area for families?

SL4 2JQ scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at SL4 2JQ?

Air quality data for SL4 2JQ is being updated.

How far is the nearest EV charging point from SL4 2JQ?

EV charging data for SL4 2JQ is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at SL4 2JQ?

Full fibre availability at SL4 2JQ is being updated. Check Openreach for the latest rollout status.

Area suitability scores

SL4 2JQ

Remote Worker

35

Based on superfast broadband coverage, FTTP %, and 4G mobile outdoor coverage.

Family

50

Based on Ofsted school ratings, crime rate, flood risk, and GP surgery proximity.

Value for Money

50

Based on broadband quality relative to average house price in the area.

Map

Area info

Parish

Windsor and Maidenhead

District

Windsor and Maidenhead

Region

Constituency

LSOA

E01016567

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