HA1 postcode
Broadband in HA1 3JZ
Harrow, Harrow
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data
Flood Risk
High
Fibre (FTTP)
TBC
Best speed
80%
Speed Calculator
Adjust the options below to see how much broadband speed your household needs.
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.
Your household needs approximately 14 Mbps. We don't have speed data for HA1 3JZ yet.
Speed Test
Check your current download speed and see how it compares to what is available at HA1 3JZ.
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 HA1 3JZ
HA1 3JZ is in Harrow. This guide pulls together data from Ofcom, Land Registry, Police.uk, and more. Every figure is specific to this postcode or its local area. We cover broadband, real-world speeds, house prices, and crime. Plus schools, flood risk, air quality, transport, and GP access. Use it to compare against other postcodes you're considering.
Limited house price data for HA1 3JZ. 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: High. Zone: Zone 1. Higher flood risk area. Check the Environment Agency flood map in detail. This will affect insurance costs. 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.
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.
Before committing to HA1 3JZ, visit at different times. Morning rush hour tells you about traffic and parking. Evening shows you noise levels. Weekends reveal how busy local shops and parks get. Check the walk to the nearest school or station yourself.
Those are the facts for HA1 3JZ. 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.
| Technology | Available | Coverage | Typical Speed |
|---|---|---|---|
| Standard (ADSL) | 100% | 100% | 10-20 Mbps |
| Superfast (30+ Mbps) | 100% | 100% | TBC |
| Ultrafast (100+ Mbps) | 80% | 80% | TBC |
| Full Fibre (FTTP) | N/A | N/A | TBC |
| Gigabit | 80% | 80% | TBC |
Speed Distribution at HA1 3JZ
Source: Ofcom Connected Nations 2025
Mobile coverage
4G & 5G coverage · Ofcom Connected Nations 2025
4G Outdoor
4G Indoor
5G Outdoor
Networks with 4G
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Map
Schools nearby
Nearest schools within 5 miles · Ofsted ratings as at Jan 2026
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🔴
Flood risk: High
This postcode is in undefined — high risk of flooding from rivers and sea.
Flood Zone
Risk Level
High
Council tax bands
Band distribution for Harrow
Most common: Band
Annual council tax estimates for , 2024/25
Transport links
Nearest train stations and towns
Air quality
Particulate matter & nitrogen dioxide levels
air quality
Air quality data not available.
WHO guideline: 15 μg/m³
WHO guideline: 45 μg/m³
WHO guideline: 25 μg/m³
Area info
Parish
Harrow
District
Harrow
Region
Constituency
LSOA
E01002134
Frequently asked questions about HA1 3JZ
What are the broadband speeds available at HA1 3JZ?
Superfast broadband (30Mbps+) is available to 100% of premises at HA1 3JZ. Maximum download speeds reach not confirmed. Ultrafast coverage is at 80%.
What is the average house price near HA1 3JZ?
No recent house price data for HA1 3JZ. Few residential sales on record, or mainly commercial properties.
What is the flood risk for properties at HA1 3JZ?
HA1 3JZ has a High 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 HA1 3JZ?
4G outdoor coverage at HA1 3JZ 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 HA1 3JZ?
EPC data is not yet available for HA1 3JZ. 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 HA1 3JZ?
Air quality at HA1 3JZ 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 HA1 3JZ?
EV charging data is not yet available for HA1 3JZ. Check Zap-Map (zap-map.com) for the latest public charging locations near you.
Can I get full fibre broadband at HA1 3JZ?
Ultrafast broadband (100Mbps+) is available to 80% of premises at HA1 3JZ. Gigabit coverage reaches 80%. Providers like BT, Virgin Media, or local full fibre operators may serve this area.
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