LL51 postcode

Broadband in LL51 9AX

Dolbenmaen, Gwynedd

Gigabit broadband is available at this postcode.

Best speedGigabit (1Gbps+)
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 15 March 2026

Flood Risk

Low

Fibre (FTTP)

No

Best speed

Gigabit (1Gbps+)

Reviewed by Rex BlackwellData last verified: 15 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 LL51 9AX. 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 LL51 9AX.

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)72%
72%
10-20 Mbps
Superfast (30+ Mbps)72%
72%
30-80 Mbps
Ultrafast (100+ Mbps)72%
72%
100-300 Mbps
Full Fibre (FTTP)0%
0%
300-900 Mbps
Gigabit72%
72%
900-1,000 Mbps

Speed Distribution at LL51 9AX

2–5 Mbps (17%)
5–10 Mbps (10%)
300+ Mbps (72%)

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: Low

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

Flood Zone

Risk Level

Low

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 Gwynedd

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 LL51 9AX

This is the area guide for LL51 9AX, located in Dolbenmaen (Gwynedd). It covers connectivity, property, safety, and local services. Every claim links back to a specific data point.

Superfast coverage here stands at 72.4%. That is below the UK average of 93%. Ultrafast (100 Mbps+) reaches 72.4% of properties. Gigabit-capable connections cover 72.4% of premises.

24.1% of premises here fall below the Universal Service Obligation of 10 Mbps. Some properties still lack adequate speeds. Next-generation access (NGA) reaches 72.4% of the area. 72.4% of connections can achieve 300 Mbps or faster.

Flood risk at LL51 9AX is rated Low. Minor precautions may be worth considering.

Coverage data includes EE,O2,Three,Vodafone.

Suitability scores for LL51 9AX: remote working 35/100, family 50/100, value 50/100. Remote workers may want to check actual speeds before committing.

Not every property at LL51 9AX gets the same speeds. Run a postcode check with each provider. Compare contract lengths and total costs, not just headline speeds.

Dolbenmaen offers a mix of local amenities and residential properties. The character of the area is best judged by visiting in person.

Data sources include Ofcom (broadband), 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. All figures are the latest available at the time of writing.

Data is a starting point. Walk the streets at different times. Test your mobile signal. Check parking, noise, and the feel of the area. Some things only a visit can reveal.

This covers the key data for LL51 9AX. Broadband, property, schools, safety, and local services all in one place. Check back periodically as data updates. For area-wide trends, see the Dolbenmaen district page.

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 LL51 9AX

What are the broadband speeds available at LL51 9AX?

Superfast broadband (30 Mbps+) is available to 72.4% of premises at LL51 9AX. Ultrafast coverage is at 72.4%.

What is the average house price near LL51 9AX?

No recent house price data is available for LL51 9AX.

What is the flood risk for properties at LL51 9AX?

LL51 9AX has a Low flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the LL51 9AX area?

School data for LL51 9AX is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in LL51 9AX compare to other areas?

Crime data for this area is being updated.

How suitable is LL51 9AX for remote working?

LL51 9AX scores 35/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at LL51 9AX?

Mobile coverage data for LL51 9AX is being updated. Check Ofcom coverage maps for the latest.

What is the most common energy efficiency rating near LL51 9AX?

EPC data for LL51 9AX is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at LL51 9AX?

Council tax band information for LL51 9AX is being updated.

How accessible are GP surgeries near LL51 9AX?

GP surgery data for LL51 9AX is being updated. Check NHS.uk for the latest.

What transport links are available near LL51 9AX?

Transport data for LL51 9AX is being updated.

Is LL51 9AX a suitable area for families?

LL51 9AX scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at LL51 9AX?

Air quality data for LL51 9AX is being updated.

How far is the nearest EV charging point from LL51 9AX?

EV charging data for LL51 9AX is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at LL51 9AX?

Ultrafast broadband (100 Mbps+) reaches 72.4% of premises. Full fibre status may vary by provider. Check Openreach and local operators for FTTP availability.

Area suitability scores

LL51 9AX

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

Dolbenmaen

District

Gwynedd

Region

Constituency

LSOA

W01000066

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