TR21 postcode
Broadband in TR21 0HE
St Mary's, Isles of Scilly
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data · Updated 5 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 TR21 0HE. 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 TR21 0HE.
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) | 67% | 67% | 10-20 Mbps |
| Superfast (30+ Mbps) | 67% | 67% | 30-80 Mbps |
| Ultrafast (100+ Mbps) | 33% | 33% | 100-300 Mbps |
| Full Fibre (FTTP) | N/A | N/A | 300-900 Mbps |
| Gigabit | 33% | 33% | 900-1,000 Mbps |
Speed Distribution at TR21 0HE
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 Isles of Scilly
Most common: Band
Annual council tax estimates for , 2024/25
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Check Deals →Living near TR21 0HE
TR21 0HE sits in St Mary's, part of Isles of Scilly. 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.
66.7% of premises at TR21 0HE can access superfast broadband. The UK average is 93%. There is room for improvement here. Ultrafast broadband (100 Mbps+) reaches 33.3% of properties. Fewer than half of homes here can get ultrafast speeds. Gigabit-capable connections cover 33.3% of premises. Gigabit is available but not yet widespread at this postcode.
The speed distribution at TR21 0HE tells a more detailed story than headline figures alone. 33.3% of connections fall in the 30 to 300 Mbps range. 33.3% 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. 33.3% of premises can hit 300 Mbps or more. That is enough for demanding multi-device households.
What do the broadband speeds at TR21 0HE mean in practice?
Fixed Wireless Access is not currently available at TR21 0HE. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.
33.3% of premises at TR21 0HE 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 66.7% of the area. NGA typically means speeds of 24 Mbps or above.
Flood risk at TR21 0HE 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 TR21 0HE 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 TR21 0HE: remote working 35/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
TR21 0HE falls within the Isles of Scilly local authority area. The immediate area is St Mary's, a distinct community within the wider district. The TR21 postcode area contains 67 postcodes on this site. Superfast broadband across TR21 ranges from 50% to 100%. TR21 0HE is below the area average of 96%.
How does TR21 0HE compare to its neighbours? TR21 0LE (0.04 miles, st-mary-s) has 100% superfast coverage and 100% gigabit. TR21 0LQ (0.05 miles, st-mary-s) has 100% superfast coverage and 100% gigabit. Neighbouring postcodes tend to have better superfast coverage.
Not every property at TR21 0HE 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.
Life in St Mary's depends on what matters to you. Broadband, transport, and local services vary by street.
What does all of this mean for someone considering TR21 0HE? Isles of Scilly 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. St Mary's 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 St Mary's. 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.
TR21 0HE in St Mary's: 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 TR21 0HE
What are the broadband speeds available at TR21 0HE?
Superfast broadband (30 Mbps+) is available to 66.7% of premises at TR21 0HE. Ultrafast coverage is at 33.3%.
What is the average house price near TR21 0HE?
No recent house price data is available for TR21 0HE.
What is the flood risk for properties at TR21 0HE?
TR21 0HE has a Medium flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the TR21 0HE area?
School data for TR21 0HE is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in TR21 0HE compare to other areas?
Crime data for this area is being updated.
How suitable is TR21 0HE for remote working?
TR21 0HE scores 35/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at TR21 0HE?
4G outdoor coverage at TR21 0HE is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near TR21 0HE?
EPC data for TR21 0HE is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at TR21 0HE?
Council tax band information for TR21 0HE is being updated.
How accessible are GP surgeries near TR21 0HE?
GP surgery data for TR21 0HE is being updated. Check NHS.uk for the latest.
What transport links are available near TR21 0HE?
Transport data for TR21 0HE is being updated.
Is TR21 0HE a suitable area for families?
TR21 0HE scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at TR21 0HE?
Air quality data for TR21 0HE is being updated.
How far is the nearest EV charging point from TR21 0HE?
EV charging data for TR21 0HE is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at TR21 0HE?
Ultrafast broadband (100 Mbps+) reaches 33.3% of premises. Check Openreach and local operators for FTTP availability.
Area suitability scores
TR21 0HERemote Worker
35Based 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
St Mary's
District
Isles of Scilly
Region
Constituency
LSOA
E01019077
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