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SO21 postcode

Broadband in SO21 1PH

Twyford, Winchester

Superfast broadband covers 25% of premises here.

Best speed0%
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data

Flood Risk

Medium

Fibre (FTTP)

No

Best speed

0%

Reviewed by Arthur Turing

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

Your household needs approximately 14 Mbps. We don't have speed data for SO21 1PH yet.

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Speed Test

Check your current download speed and see how it compares to what is available at SO21 1PH.

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)

Living near SO21 1PH

What's SO21 1PH actually like? We checked Twyford's data across 15+ categories. Broadband speeds and real-world performance. House prices and recent sales. Crime rates and categories. Schools, flood risk, air quality, GP access, and transport links. Everything below comes from official public data. Updated regularly. Specific to this postcode wherever possible.

Broadband at SO21 1PH is below average. Superfast covers just 25% of premises. The UK average sits at 93%. Big gap here. Video calls may drop. Streaming will buffer. Check if 4G or 5G home broadband is an option. Some providers offer mobile broadband alternatives. No gigabit connections available yet. Top speeds listed as unknown.

Next-gen fibre infrastructure covers 100% of premises. Most of the area has modern fibre connections.

Limited house price data for SO21 1PH. Few residential sales on record here. Could be a commercial area, new development, or rental-heavy. Land Registry only records completed sales. Rentals and new-builds under shared ownership may not appear. Check Rightmove or Zoopla for current asking prices. Talk to local estate agents for a ground-level view.

Flood risk: Medium. Zone: Zone 1. Moderate flood risk. Get a flood risk assessment before buying. Insurance premiums may be higher. Air quality: Unknown.

No public EV chargers recorded nearby. Home charging would be the main option. Check Zap-Map for the latest charger locations.

4G outdoor coverage: 95%. Good coverage. Some indoor dead spots possible. Data is at local authority level from Ofcom. Street-level signal can vary. Buildings and terrain affect actual reception. Try your handset on-site before switching provider.

A note on broadband providers. Ofcom data shows what's available. Not which provider to pick. Actual speeds depend on your line, your router, and your provider. Check BT, Sky, Virgin Media, and local FTTP operators. Compare deals at broadbandcompareuk.com or uSwitch. Contract lengths vary. 18 months is standard. Some offer 12. Ask about setup fees. They range from free to £50+. Run a speed test after installation. If speeds don't match what you're paying for, complain.

All data on this page comes from official public sources. Ofcom publishes broadband stats yearly. Police.uk updates monthly. The Land Registry records every sale. We pull it together so you can see the full picture in one place.

Research is one thing. Being there is another. Walk around SO21 1PH at different times of day. Check if the streets feel safe after dark. Look at how well homes are maintained. Visit the nearest park or green space. These things don't show up in statistics.

Those are the facts for SO21 1PH. Compare with other postcodes you're considering. Each section above links to its official source. The data is objective. Your priorities decide which trade-offs matter. What works for a young professional differs from a family with children. Check back for updated figures as new data comes in.

TechnologyAvailableCoverageTypical Speed
Standard (ADSL)25%
25%
10-20 Mbps
Superfast (30+ Mbps)25%
25%
30-80 Mbps
Ultrafast (100+ Mbps)0%
0%
100-300 Mbps
Full Fibre (FTTP)N/A
N/A
300-900 Mbps
Gigabit0%
0%
900-1,000 Mbps

Speed Distribution at SO21 1PH

10–30 Mbps (75%)
30–300 Mbps (25%)

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

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Map

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

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)

Transport links

Nearest train stations and towns

Network Rail / National Rail · Straight-line distances

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

Area info

Parish

Twyford

District

Winchester

Region

Constituency

LSOA

E01023226

Frequently asked questions about SO21 1PH

What are the broadband speeds available at SO21 1PH?

Superfast broadband (30Mbps+) is available to 25% of premises at SO21 1PH. Maximum download speeds reach not confirmed. Ultrafast coverage is at 0%.

What is the average house price near SO21 1PH?

No recent house price data for SO21 1PH. Few residential sales on record, or mainly commercial properties.

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

SO21 1PH has a Medium flood risk rating, classified as Unknown by the Environment Agency. Check the Environment Agency flood map for detailed risk information.

What is the mobile signal like at SO21 1PH?

4G outdoor coverage at SO21 1PH is 95%, with 5G outdoor at not yet available. Networks available include EE, O2, Three, Vodafone. Data is at local authority level from Ofcom Connected Nations.

What is the most common energy efficiency rating for homes near SO21 1PH?

EPC data is not yet available for SO21 1PH. Energy Performance Certificates are recorded when properties are sold or rented. Check the EPC register at epc.opendatacommunities.org for individual property ratings.

What is the air quality like at SO21 1PH?

Air quality at SO21 1PH is rated Unknown with PM2.5 levels at not measured. Check Open-Meteo for detailed air quality forecasts.

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

EV charging data is not yet available for SO21 1PH. Check Zap-Map (zap-map.com) for the latest public charging locations near you.

Can I get full fibre broadband at SO21 1PH?

Ultrafast broadband is not currently available at SO21 1PH. Standard and superfast options may still be available. Check with providers for the latest rollout plans.

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