SN1 postcode
Broadband in SN1 1SG
South Swindon, Swindon
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data · Updated 18 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 SN1 1SG. That covers your 14 Mbps needs with room to spare.
Speed Test
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Broadband availability
Source: Ofcom Connected Nations 2025 (Jul 2025)
| Technology | Available | Coverage | Typical Speed |
|---|---|---|---|
| Standard (ADSL) | 92% | 92% | 10-20 Mbps |
| Superfast (30+ Mbps) | 92% | 92% | 30-80 Mbps |
| Ultrafast (100+ Mbps) | 92% | 92% | 100-300 Mbps |
| Full Fibre (FTTP) | N/A | N/A | 300-900 Mbps |
| Gigabit | 92% | 92% | 900-1,000 Mbps |
Speed Distribution at SN1 1SG
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 Swindon
Most common: Band
Annual council tax estimates for , 2024/25
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SN1 1SG sits in South Swindon, part of Swindon. 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.
92.3% of premises at SN1 1SG can access superfast broadband. The UK average is 93%. There is room for improvement here. Ultrafast broadband (100 Mbps+) reaches 92.3% of properties. That is solid coverage for bandwidth-heavy households. Gigabit-capable connections cover 92.3% of premises. Most homes can access gigabit speeds if they choose to.
The speed distribution at SN1 1SG tells a more detailed story than headline figures alone. 7.7% of connections fall in the 10 to 30 Mbps range. 92.3% 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 SN1 1SG 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 SN1 1SG. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.
0% of premises at SN1 1SG 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 92.3% of the area. NGA typically means speeds of 24 Mbps or above.
Flood risk at SN1 1SG 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.
Outdoor 4G mobile signal at SN1 1SG 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 SN1 1SG: remote working 50/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
SN1 1SG falls within the Swindon local authority area. The immediate area is South Swindon, a distinct community within the wider district. The SN1 postcode area contains 743 postcodes on this site. Superfast broadband across SN1 ranges from 0% to 100%. SN1 1SG is below the area average of 98%.
How does SN1 1SG compare to its neighbours? SN1 1SQ (0.03 miles, south-swindon) has 26.3% superfast coverage and 26.3% gigabit. SN1 5PA (0.03 miles, south-swindon) has 100% superfast coverage and 100% gigabit. SN1 5PL (0.04 miles, south-swindon) has 97.6% superfast coverage and 97.6% gigabit. SN1 1JS (0.04 miles, south-swindon) has 100% superfast coverage and 100% gigabit. SN1 1SG has better superfast coverage than its immediate neighbours.
Not every property at SN1 1SG 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.
South Swindon offers a mix of residential properties and local amenities. The character of any area is best judged in person.
Pulling the data together for SN1 1SG, here is what stands out. Connectivity at SN1 1SG is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. Swindon 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. South Swindon 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 South Swindon. 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.
This covers the key data for SN1 1SG. Broadband, property, schools, safety, and local services all in one place. For area-wide trends, see the South Swindon 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 SN1 1SG
What are the broadband speeds available at SN1 1SG?
Superfast broadband (30 Mbps+) is available to 92.3% of premises at SN1 1SG. Ultrafast coverage is at 92.3%.
What is the average house price near SN1 1SG?
No recent house price data is available for SN1 1SG.
What is the flood risk for properties at SN1 1SG?
SN1 1SG has a Medium flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the SN1 1SG area?
School data for SN1 1SG is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in SN1 1SG compare to other areas?
Crime data for this area is being updated.
How suitable is SN1 1SG for remote working?
SN1 1SG scores 50/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at SN1 1SG?
4G outdoor coverage at SN1 1SG is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near SN1 1SG?
EPC data for SN1 1SG is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at SN1 1SG?
Council tax band information for SN1 1SG is being updated.
How accessible are GP surgeries near SN1 1SG?
GP surgery data for SN1 1SG is being updated. Check NHS.uk for the latest.
What transport links are available near SN1 1SG?
Transport data for SN1 1SG is being updated.
Is SN1 1SG a suitable area for families?
SN1 1SG scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at SN1 1SG?
Air quality data for SN1 1SG is being updated.
How far is the nearest EV charging point from SN1 1SG?
EV charging data for SN1 1SG is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at SN1 1SG?
Ultrafast broadband (100 Mbps+) reaches 92.3% of premises. Check Openreach and local operators for FTTP availability.
Area suitability scores
SN1 1SGRemote 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
Area info
Parish
South Swindon
District
Swindon
Region
Constituency
LSOA
E01032714
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