CB4 postcode
Broadband in CB4 1JY
Cambridge, Cambridge
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data · Updated 19 March 2026
Flood Risk
High
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 CB4 1JY. That covers your 14 Mbps needs with room to spare.
Speed Test
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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)
| 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 CB4 1JY
Source: Ofcom Connected Nations 2025
Mobile coverage
4G & 5G coverage · Ofcom Connected Nations 2025
4G Outdoor
4G Indoor
5G Outdoor
Networks with 4G
Schools nearby
Nearest schools within 5 miles · Ofsted ratings as at Jan 2026
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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
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
Transport links
Nearest train stations and towns
Nearest train stations
No train stations found within 15 miles
Council tax bands
Band distribution for Cambridge
Most common: Band
Annual council tax estimates for , 2024/25
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This is the area guide for CB4 1JY, located in Cambridge. It covers connectivity, property, safety, and local services. Every claim links back to a specific data point. Read on for the detail.
Superfast coverage here stands at 100%. Nationally, 93% of UK premises have access. Coverage at this postcode is strong. Ultrafast broadband (100 Mbps+) reaches 100% of properties. That is solid coverage for bandwidth-heavy households. Gigabit-capable connections cover 100% of premises. Most homes can access gigabit speeds if they choose to.
The speed distribution at CB4 1JY tells a more detailed story than headline figures alone. 100% 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 CB4 1JY into daily use gives a clearer picture. Most premises have superfast speeds. Remote working with video calls and cloud tools should be manageable for most households.
Fixed Wireless Access is not currently available at CB4 1JY. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.
0% of premises at CB4 1JY 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 100% of the area. NGA typically means speeds of 24 Mbps or above.
Flood risk at CB4 1JY 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 CB4 1JY 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.
Suitability scores for CB4 1JY: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
The local authority for CB4 1JY is Cambridge. The CB4 postcode area contains 890 postcodes on this site. Superfast broadband across CB4 ranges from 0% to 100%. CB4 1JY is close to the area average of 99%.
How does CB4 1JY compare to its neighbours? CB4 1AD (0.03 miles, cambridge-unparished-area) has 100% superfast coverage and 100% gigabit. CB4 1WE (0.03 miles, cambridge-unparished-area) has 0% superfast coverage and 0% gigabit. CB4 1UZ (0.04 miles, cambridge-unparished-area) has 100% superfast coverage and 83.3% gigabit. CB4 1UY (0.04 miles, cambridge-unparished-area) has 93.8% superfast coverage and 87.5% gigabit. CB4 1JY has better superfast coverage than its immediate neighbours.
When choosing a broadband provider at CB4 1JY, 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.
Life in Cambridge depends on what matters to you. Broadband, transport, and local services vary by street.
Looking at the overall picture for CB4 1JY, a few things are worth highlighting. Connectivity at CB4 1JY is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. Cambridge 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. Cambridge 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.
Data is a starting point for Cambridge. Walk the streets at different times. Test your mobile signal. Check parking, noise levels, and the feel of the neighbourhood. Run a speed test on the actual connection. Some things only a visit can reveal.
This covers the key data for CB4 1JY. Broadband, property, schools, safety, and local services all in one place. For area-wide trends, see the Cambridge 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 CB4 1JY
What are the broadband speeds available at CB4 1JY?
Superfast broadband (30 Mbps+) is available to 100% of premises at CB4 1JY. Ultrafast coverage is at 100%.
What is the average house price near CB4 1JY?
No recent house price data is available for CB4 1JY.
What is the flood risk for properties at CB4 1JY?
CB4 1JY has a High flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the CB4 1JY area?
School data for CB4 1JY is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in CB4 1JY compare to other areas?
Crime data for this area is being updated.
How suitable is CB4 1JY for remote working?
CB4 1JY scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at CB4 1JY?
4G outdoor coverage at CB4 1JY is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near CB4 1JY?
EPC data for CB4 1JY is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at CB4 1JY?
Council tax band information for CB4 1JY is being updated.
How accessible are GP surgeries near CB4 1JY?
GP surgery data for CB4 1JY is being updated. Check NHS.uk for the latest.
What transport links are available near CB4 1JY?
Transport data for CB4 1JY is being updated.
Is CB4 1JY a suitable area for families?
CB4 1JY scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at CB4 1JY?
Air quality data for CB4 1JY is being updated.
How far is the nearest EV charging point from CB4 1JY?
EV charging data for CB4 1JY is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at CB4 1JY?
Ultrafast broadband (100 Mbps+) reaches 100% of premises. Check Openreach and local operators for FTTP availability.
Area suitability scores
CB4 1JYRemote Worker
55Based on superfast broadband coverage, FTTP %, and 4G mobile outdoor coverage.
Family
50Based on Ofsted school ratings, crime rate, flood risk, and GP surgery proximity.
Value for Money
50Based on broadband quality relative to average house price in the area.
Map
Area info
Parish
Cambridge
District
Cambridge
Region
Constituency
LSOA
E01018009
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