SO23 postcode

Broadband in SO23 9TW

Winchester, Winchester

Gigabit broadband is available at this postcode.

Best speedGigabit (1Gbps+)
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 10 March 2026

Flood Risk

High

Fibre (FTTP)

No

Best speed

Gigabit (1Gbps+)

Reviewed by Sage MitchellData last verified: 10 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

Gigabit broadband (Gigabit (1Gbps+)) is available at SO23 9TW. That covers your 14 Mbps needs with room to spare.

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Speed Test

Check your current download speed and see how it compares to what is available at SO23 9TW.

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)95%
95%
100-300 Mbps
Full Fibre (FTTP)0%
0%
300-900 Mbps
Gigabit95%
95%
900-1,000 Mbps

Speed Distribution at SO23 9TW

95%
30–300 Mbps (5%)
300+ Mbps (95%)

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 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 SO23 9TW

This is the area guide for SO23 9TW, located in Winchester. It covers connectivity, property, safety, and local services. Every claim links back to a specific data point. Read on for the detail.

100% of premises at SO23 9TW can access superfast broadband. The UK average is 93%. This postcode meets or exceeds that benchmark. Ultrafast broadband (100 Mbps+) reaches 95% of properties. That is solid coverage for bandwidth-heavy households. Gigabit-capable connections cover 95% of premises. Most homes can access gigabit speeds if they choose to.

Looking at the full speed profile for SO23 9TW gives a better picture of what to expect. 5% of connections fall in the 30 to 300 Mbps range. 95% 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.

Translating the numbers at SO23 9TW into daily use gives a clearer picture. Most premises have superfast speeds. Remote working with video calls and cloud tools should be manageable for most households.

FWA broadband has not reached SO23 9TW yet. Satellite services like Starlink or 4G home broadband routers can fill the gap where fixed-line options are limited.

0% of premises at SO23 9TW 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 100% of the area. NGA typically means speeds of 24 Mbps or above.

Flood risk at SO23 9TW 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 SO23 9TW 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.

Suitability scores for SO23 9TW: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

The local authority for SO23 9TW is Winchester. The SO23 postcode area contains 691 postcodes on this site. Superfast broadband across SO23 ranges from 0% to 100%. SO23 9TW is close to the area average of 95%.

How does SO23 9TW compare to its neighbours? SO23 9SX (0.03 miles, winchester-unparished-area) has 100% superfast coverage and 100% gigabit. SO23 9SU (0.05 miles, winchester-unparished-area) has 100% superfast coverage and 60% gigabit. SO23 9TT (0.06 miles, winchester-unparished-area) has 100% superfast coverage and 100% gigabit. Coverage is broadly similar across these neighbouring postcodes.

Not every property at SO23 9TW 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 Winchester depends on what matters to you. Broadband, transport, and local services vary by street.

Pulling the data together for SO23 9TW, here is what stands out. Connectivity at SO23 9TW 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. Winchester 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.

Before making a decision about SO23 9TW, visit in person. Check the commute at rush hour. Try the mobile signal indoors. Look at local shops and green spaces. Ask about broadband reliability, not just speed. Data sets the scene, but real life fills in the gaps.

SO23 9TW in Winchester: 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 SO23 9TW

What are the broadband speeds available at SO23 9TW?

Superfast broadband (30 Mbps+) is available to 100% of premises at SO23 9TW. Ultrafast coverage is at 95%.

What is the average house price near SO23 9TW?

No recent house price data is available for SO23 9TW.

What is the flood risk for properties at SO23 9TW?

SO23 9TW has a High flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the SO23 9TW area?

School data for SO23 9TW is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in SO23 9TW compare to other areas?

Crime data for this area is being updated.

How suitable is SO23 9TW for remote working?

SO23 9TW scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at SO23 9TW?

4G outdoor coverage at SO23 9TW is 95%. Indoor coverage may be lower.

What is the most common energy efficiency rating near SO23 9TW?

EPC data for SO23 9TW is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at SO23 9TW?

Council tax band information for SO23 9TW is being updated.

How accessible are GP surgeries near SO23 9TW?

GP surgery data for SO23 9TW is being updated. Check NHS.uk for the latest.

What transport links are available near SO23 9TW?

Transport data for SO23 9TW is being updated.

Is SO23 9TW a suitable area for families?

SO23 9TW scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at SO23 9TW?

Air quality data for SO23 9TW is being updated.

How far is the nearest EV charging point from SO23 9TW?

EV charging data for SO23 9TW is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at SO23 9TW?

Ultrafast broadband (100 Mbps+) reaches 95% of premises. Check Openreach and local operators for FTTP availability.

Area suitability scores

SO23 9TW

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

Area info

Parish

Winchester

District

Winchester

Region

Constituency

LSOA

E01023266

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