SO23 postcode

Broadband in SO23 7DD

Winchester, Winchester

Gigabit broadband is available at this postcode.

Best speedGigabit (1Gbps+)
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 24 March 2026

Flood Risk

High

Fibre (FTTP)

No

Best speed

Gigabit (1Gbps+)

Reviewed by Rex BlackwellData last verified: 24 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 7DD. 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 7DD.

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)57%
57%
10-20 Mbps
Superfast (30+ Mbps)57%
57%
30-80 Mbps
Ultrafast (100+ Mbps)52%
52%
100-300 Mbps
Full Fibre (FTTP)0%
0%
300-900 Mbps
Gigabit52%
52%
900-1,000 Mbps

Speed Distribution at SO23 7DD

10–30 Mbps (43%)
30–300 Mbps (5%)
300+ Mbps (52%)

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 7DD

Looking at SO23 7DD in Winchester? Here is what the data says. From broadband coverage to crime rates, this is the full picture. All numbers are from official sources. The guide is updated as new data becomes available.

Superfast coverage here stands at 57.1%. Nationally, 93% of UK premises have access. Some properties may struggle with speed. Ultrafast broadband (100 Mbps+) reaches 52.4% of properties. Over half of premises have access to faster tiers. Gigabit-capable connections cover 52.4% of premises. Gigabit is available but not yet widespread at this postcode.

Here is how broadband speeds break down across premises at SO23 7DD. 42.9% of connections fall in the 10 to 30 Mbps range. 4.8% of connections fall in the 30 to 300 Mbps range. 52.4% 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 7DD into daily use gives a clearer picture.

Fixed Wireless Access is not currently available at SO23 7DD. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.

0% of premises at SO23 7DD 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 57.1% of the area. NGA typically means speeds of 24 Mbps or above.

Flood risk at SO23 7DD 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.

Outdoor 4G mobile signal at SO23 7DD 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. Strong 4G coverage combined with limited fixed broadband means 4G home broadband could be a practical alternative here.

Suitability scores for SO23 7DD: remote working 35/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

SO23 7DD falls within the Winchester local authority area. The SO23 postcode area contains 691 postcodes on this site. Superfast broadband across SO23 ranges from 0% to 100%. SO23 7DD is below the area average of 95%.

How does SO23 7DD compare to its neighbours? SO23 7GJ (0.02 miles, winchester-unparished-area) has 0% superfast coverage and 0% gigabit. SO23 7TD (0.02 miles, winchester-unparished-area) has 50% superfast coverage and 50% gigabit. SO23 7TB (0.03 miles, winchester-unparished-area) has 47.2% superfast coverage and 0% gigabit. SO23 7GS (0.04 miles, winchester-unparished-area) has 100% superfast coverage and 100% gigabit. SO23 7DD has better superfast coverage than its immediate neighbours.

When choosing a broadband provider at SO23 7DD, 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.

Every part of Winchester has its own feel. This data gives you the factual starting point. A visit fills in the rest.

Pulling the data together for SO23 7DD, here is what stands out. 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.

Numbers tell part of the story for SO23 7DD. Visit at different times of day. Talk to neighbours. Check mobile signal indoors. Walk the route to the nearest school or station. Test the broadband speed from inside the property. These things do not show up in data.

This covers the key data for SO23 7DD. Broadband, property, schools, safety, and local services all in one place. For area-wide trends, see the Winchester 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 SO23 7DD

What are the broadband speeds available at SO23 7DD?

Superfast broadband (30 Mbps+) is available to 57.1% of premises at SO23 7DD. Ultrafast coverage is at 52.4%.

What is the average house price near SO23 7DD?

No recent house price data is available for SO23 7DD.

What is the flood risk for properties at SO23 7DD?

SO23 7DD has a High flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the SO23 7DD area?

School data for SO23 7DD is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in SO23 7DD compare to other areas?

Crime data for this area is being updated.

How suitable is SO23 7DD for remote working?

SO23 7DD scores 35/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at SO23 7DD?

4G outdoor coverage at SO23 7DD is 95%. Indoor coverage may be lower.

What is the most common energy efficiency rating near SO23 7DD?

EPC data for SO23 7DD is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at SO23 7DD?

Council tax band information for SO23 7DD is being updated.

How accessible are GP surgeries near SO23 7DD?

GP surgery data for SO23 7DD is being updated. Check NHS.uk for the latest.

What transport links are available near SO23 7DD?

Transport data for SO23 7DD is being updated.

Is SO23 7DD a suitable area for families?

SO23 7DD scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at SO23 7DD?

Air quality data for SO23 7DD is being updated.

How far is the nearest EV charging point from SO23 7DD?

EV charging data for SO23 7DD is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at SO23 7DD?

Ultrafast broadband (100 Mbps+) reaches 52.4% of premises. Check Openreach and local operators for FTTP availability.

Area suitability scores

SO23 7DD

Remote Worker

35

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

E01023251

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