SO21 postcode

Broadband in SO21 1BH

Itchen Valley, Winchester

Superfast broadband covers 100% of premises here.

Best speed~30 Mbps
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 13 March 2026

Flood Risk

Medium

Fibre (FTTP)

No

Best speed

~30 Mbps

Reviewed by Rex BlackwellData last verified: 13 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 SO21 1BH 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 SO21 1BH.

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)100%
100%
10-20 Mbps
Superfast (30+ Mbps)100%
100%
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 SO21 1BH

100%
30–300 Mbps (100%)

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: Medium

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

Flood Zone

Risk Level

Medium

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 Winchester

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 SO21 1BH

This is the area guide for SO21 1BH, located in Itchen Valley (Winchester). It covers connectivity, property, safety, and local services. Every claim links back to a specific data point. Read on for the detail.

Superfast broadband (30 Mbps+) coverage at SO21 1BH stands at 100%. That is above the UK average of 93%.

Here is how broadband speeds break down across premises at SO21 1BH. 100% of connections fall in the 30 to 300 Mbps range. No premises here are stuck below 5 Mbps. Every property meets the basic threshold for video calls.

Here is how the broadband at SO21 1BH 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 SO21 1BH. 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 SO21 1BH, 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 SO21 1BH 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 SO21 1BH 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 SO21 1BH: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

SO21 1BH falls within the Winchester local authority area. The immediate area is Itchen Valley, a distinct community within the wider district. The SO21 postcode area contains 732 postcodes on this site. Superfast broadband across SO21 ranges from 0% to 100%. SO21 1BH is above the area average of 79%.

How does SO21 1BH compare to its neighbours? SO21 1BJ (0.05 miles, itchen-valley) has 100% superfast coverage and 0% gigabit. Coverage is broadly similar across these neighbouring postcodes.

When choosing a broadband provider at SO21 1BH, 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.

Itchen Valley offers a mix of residential properties and local amenities. The character of any area is best judged in person.

Looking at the overall picture for SO21 1BH, a few things are worth highlighting. Connectivity at SO21 1BH is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. Winchester 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. Itchen Valley 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 Itchen Valley. 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 SO21 1BH in Itchen Valley. 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 SO21 1BH

What are the broadband speeds available at SO21 1BH?

Superfast broadband (30 Mbps+) is available to 100% of premises at SO21 1BH.

What is the average house price near SO21 1BH?

No recent house price data is available for SO21 1BH.

What is the flood risk for properties at SO21 1BH?

SO21 1BH has a Medium flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the SO21 1BH area?

School data for SO21 1BH is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in SO21 1BH compare to other areas?

Crime data for this area is being updated.

How suitable is SO21 1BH for remote working?

SO21 1BH scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at SO21 1BH?

4G outdoor coverage at SO21 1BH is 95%. Indoor coverage may be lower.

What is the most common energy efficiency rating near SO21 1BH?

EPC data for SO21 1BH is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at SO21 1BH?

Council tax band information for SO21 1BH is being updated.

How accessible are GP surgeries near SO21 1BH?

GP surgery data for SO21 1BH is being updated. Check NHS.uk for the latest.

What transport links are available near SO21 1BH?

Transport data for SO21 1BH is being updated.

Is SO21 1BH a suitable area for families?

SO21 1BH scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at SO21 1BH?

Air quality data for SO21 1BH is being updated.

How far is the nearest EV charging point from SO21 1BH?

EV charging data for SO21 1BH is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at SO21 1BH?

Full fibre availability at SO21 1BH is being updated. Check Openreach for the latest rollout status.

Area suitability scores

SO21 1BH

Remote Worker

55

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

Explore nearby postcodes

Area info

Parish

Itchen Valley

District

Winchester

Region

Constituency

LSOA

E01023236

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