SM4 postcode
Broadband in SM4 4NJ
Merton, Merton
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data
Flood Risk
Low
Fibre (FTTP)
No
Best speed
Gigabit (1Gbps+)
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.
Gigabit broadband (Gigabit (1Gbps+)) is available at SM4 4NJ. That covers your 14 Mbps needs with room to spare.
Speed Test
Check your current download speed and see how it compares to what is available at SM4 4NJ.
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.
Living near SM4 4NJ
What's SM4 4NJ actually like? We checked Merton's data across 15+ categories. Broadband speeds and real-world performance. House prices and recent sales. Crime rates and categories. Schools, flood risk, air quality, GP access, and transport links. Everything below comes from official public data. Updated regularly. Specific to this postcode wherever possible.
Strong broadband in this part of Merton. Superfast (30Mbps+) reaches 100% of premises. The UK average is around 93%. Merton beats that. Ultrafast (100Mbps+) covers 100%. That puts Merton ahead of most UK postcodes. Enough for streaming, video calls, and smart home devices. Gigabit connections: 100% coverage. Most homes here can get future-proof speeds.
Next-gen fibre infrastructure covers 100% of premises. Most of the area has modern fibre connections.
Limited house price data for SM4 4NJ. 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: Low. Zone: Zone 1. Small chance of flooding. Check if the property has a history of flood claims. 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.
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 SM4 4NJ 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.
SM4 4NJ 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.
Broadband availability
Source: Ofcom Connected Nations 2025 (Jul 2025)
| Technology | Available | Coverage | Typical Speed |
|---|---|---|---|
| Standard (ADSL) | 100% | 100% | 10-20 Mbps |
| Superfast (30+ Mbps) | 100% | 100% | 30-80 Mbps |
| Ultrafast (100+ Mbps) | 100% | 100% | 100-300 Mbps |
| Full Fibre (FTTP) | 0% | 0% | 300-900 Mbps |
| Gigabit | 100% | 100% | 900-1,000 Mbps |
Speed Distribution at SM4 4NJ
Source: Ofcom Connected Nations 2025
Mobile coverage
4G & 5G coverage · Ofcom Connected Nations 2025
4G Outdoor
4G Indoor
5G Outdoor
Networks with 4G
Compare broadband in SM4 4NJ
Find the best broadband packages available at your address.
Map
Schools nearby
Nearest schools within 5 miles · Ofsted ratings as at Jan 2026
Ready to switch? See what's available at your address.
Check Deals →Flood risk
🟡
Flood risk: Low
This postcode is in undefined — low risk of flooding from rivers and sea.
Flood Zone
Risk Level
Low
Council tax bands
Band distribution for Merton
Most common: Band
Annual council tax estimates for , 2024/25
Transport links
Nearest train stations and towns
Nearest train stations
No train stations found within 15 miles
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
Merton
District
Merton
Region
Constituency
LSOA
E01003419
Frequently asked questions about SM4 4NJ
What are the broadband speeds available at SM4 4NJ?
Superfast broadband (30Mbps+) is available to 100% of premises at SM4 4NJ. Maximum download speeds reach not confirmed. Ultrafast coverage is at 100%.
What is the average house price near SM4 4NJ?
No recent house price data for SM4 4NJ. Few residential sales on record, or mainly commercial properties.
What is the flood risk for properties at SM4 4NJ?
SM4 4NJ has a Low flood risk rating, classified as Unknown by the Environment Agency. There is a small chance of flooding in this area.
What is the mobile signal like at SM4 4NJ?
4G outdoor coverage at SM4 4NJ 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 SM4 4NJ?
EPC data is not yet available for SM4 4NJ. 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 SM4 4NJ?
Air quality at SM4 4NJ 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 SM4 4NJ?
EV charging data is not yet available for SM4 4NJ. Check Zap-Map (zap-map.com) for the latest public charging locations near you.
Can I get full fibre broadband at SM4 4NJ?
Ultrafast broadband (100Mbps+) is available to 100% of premises at SM4 4NJ. Gigabit coverage reaches 100%. Providers like BT, Virgin Media, or local full fibre operators may serve this area.
Best deals
Compare broadband deals in SM4 4NJ
Find the best packages from UK providers in minutes.
Broadband deals for SM4 4NJ
Compare Deals