NN1 postcode

Broadband in NN1 1SZ

NN1,

Superfast broadband covers 100% of premises here.

Best speedSuperfast (30Mbps+)
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data

Flood Risk

Very Low

Fibre (FTTP)

No

Best speed

Superfast (30Mbps+)

Reviewed by Sage Mitchell

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 NN1 1SZ is Superfast (30Mbps+). 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 NN1 1SZ.

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)N/A
N/A
300-900 Mbps
Gigabit0%
0%
900-1,000 Mbps

Mobile coverage

4G & 5G coverage · Ofcom Connected Nations 2025

4G Outdoor

99%

4G Indoor

85%

5G Outdoor

0%

Networks with 4G

EEO2ThreeVodafone
Ofcom Connected Nations 2025 · Data at local authority area level

Schools nearby

Nearest schools within 5 miles · Ofsted ratings as at Jan 2026

Schools data is currently unavailable.

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Flood risk

Zone 1

🟢

Very low flood risk

This postcode has no recorded flood risk from rivers or sea according to Environment Agency data.

Flood Zone

Zone 1

Risk Level

Very Low

Environment Agency / getthedata.com Open Flood Risk by Postcode

Air quality

Particulate matter & nitrogen dioxide levels

Good air quality

Air quality data not available.

PM2.5 (fine particles)3.6 μg/m³

WHO guideline: 15 μg/m³

PM10 (coarse particles)8.4 μg/m³

WHO guideline: 45 μg/m³

NO₂ (nitrogen dioxide)4.4 μg/m³

WHO guideline: 25 μg/m³

Open-Meteo Air Quality API (7-day average) · Guidelines: WHO 2021

Transport links

Nearest train stations and towns

Nearest train stations

No train stations found within 15 miles

NaPTAN · Straight-line distances

Council tax bands

Band distribution for

C

Most common: Band C

1,841/yr ·

A
30%£1,381
B
25%£1,611
C
20%£1,841
D
15%£2,071
E
5%£2,531
F
3%£2,991
G
1%£3,452
H
1%£4,142

Annual council tax estimates for , 2024/25

VOA 2025

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Living near NN1 1SZ

Considering NN1? NN1 1SZ sits here. We've gathered broadband, property, crime, school, and environmental data for this exact postcode. Ookla speed tests, Land Registry prices, Ofcom coverage stats, Police.uk crime figures. All from verified government sources. No estimates, no guesswork. Just the numbers that matter when choosing where to live.

Broadband at NN1 1SZ is solid. Superfast (30Mbps+) reaches 100% of premises. The UK average is around 93%. NN1 beats that. Enough for streaming, video calls, and smart home devices. No gigabit connections available yet. Top speeds listed as Superfast (30Mbps+).

Limited house price data for NN1 1SZ. 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: Very Low. Zone: Zone 1. Lowest category. Unlikely to flood. Insurance shouldn't be affected. Air quality: Good. PM2.5: 3.6 µg/m³. Well within WHO guidelines. Clean air here. No concerns. Good for asthma sufferers and young children.

Nearest train station: Croydon. Distance: 3543.3 miles. You'll need a car to get there. Also: Bromley South (3545.1 mi). And Wimbledon (3546.7 mi). No public EV chargers recorded nearby. Home charging would be the main option. Check Zap-Map for the latest charger locations.

Council tax: mostly Band C. Mostly lower bands. More affordable council tax. Check your exact band at gov.uk/council-tax-bands. Band affects your annual bill by hundreds of pounds.

4G outdoor coverage: 99%. Strong mobile signal across the area. 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.

Remote working score: 45/100. Workable, but check speeds with your employer. Family score: 50/100. Mixed for families. Depends on priorities. Scores factor in broadband, schools, crime, and GPs. They weight each category by its relevance. A low score doesn't mean the area is bad. It means specific factors may not suit that use case. Compare scores with nearby postcodes to spot patterns.

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.

Every figure on this page has a source. Ofcom for broadband. Police.uk for crime. Land Registry for house prices. ONS for demographics. Environment Agency for flood risk. Ookla for real speed tests. We don't estimate or interpolate. If the data isn't available, we say so.

Numbers only go so far. Visit NN1 1SZ on a weekday morning and a Saturday afternoon. Check parking availability. Listen for traffic noise. Look at the condition of nearby properties. Talk to a neighbour if you can. First impressions matter when choosing a home.

NN1 1SZ has its strengths and weak spots like anywhere. Use the data above as your starting point. Check providers and schools directly. Visit the area on a weekday and a weekend. Numbers only tell part of the story. The feel of a place matters too. We update these figures regularly as new data is released.

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 NN1 1SZ

What broadband speeds are available at NN1 1SZ?

100% of premises can get superfast broadband here. Top listed speed is Superfast (30Mbps+).

Can I get gigabit broadband at NN1 1SZ?

0% of premises here can get gigabit-capable broadband.

What are house prices like near NN1 1SZ?

Recent sale data is limited around NN1 1SZ, which often happens in mixed-use or low-turnover areas.

What schools are near NN1 1SZ?

School data is not loaded for this postcode yet.

What is the flood risk at NN1 1SZ?

NN1 1SZ is marked as Very Low flood risk in the current dataset.

How is air quality around NN1 1SZ?

Air quality is rated Good here, with PM2.5 at 3.6 µg/m³.

Are there GP surgeries near NN1 1SZ?

GP access data for this postcode is not loaded yet.

What transport links does NN1 1SZ have?

Croydon is the closest listed station to NN1 1SZ.

Is there mobile coverage at NN1 1SZ?

Outdoor 4G coverage is listed at 99% and 5G at 0% for the wider area.

Can I charge an EV near NN1 1SZ?

EV charging data is not loaded for this postcode yet.

What council tax band is common near NN1 1SZ?

Band C is the most common council tax band in NN1.

What makes NN1 1SZ different from nearby areas?

NN1 1SZ has its own mix of broadband coverage, local services, prices, and environmental signals. That is why postcode-level pages are more useful than generic town guides.

Should I compare NN1 1SZ with nearby postcodes?

Yes. Small postcode changes can mean different prices, flood signals, and service access.

Is NN1 1SZ worth checking in person?

Yes. The numbers narrow the shortlist, but walking the street still tells you things no dataset can.

How current is the data for NN1 1SZ?

This page uses official datasets that update on different cycles, so it is best used as a strong screening tool.

Area suitability scores

NN1 1SZ

Remote Worker

45

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

0

Based on broadband quality relative to average house price in the area.

Area info

Parish

NN1

District

Region

Constituency

LSOA

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