Broadband in CB3 9NX

Grantchester is home to CB3 9NX. Whether you live here or plan to move, the data below paints a clear picture. Broadband, schools, crime, house prices, and local services all follow. The numbers speak for themselves.

66.7% of premises at CB3 9NX can access superfast broadband. The UK average is 93%. There is room for improvement here. Ultrafast broadband (100 Mbps+) reaches 66.7% of properties. Over half of premises have access to faster tiers. Gigabit-capable connections cover 66.7% of premises. Gigabit is available but not yet widespread at this postcode.

The speed distribution at CB3 9NX tells a more detailed story than headline figures alone. 33.3% of connections fall in the 10 to 30 Mbps range. 66.7% 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.

Here is how the broadband at CB3 9NX maps against common household needs.

FWA broadband has not reached CB3 9NX yet. Satellite services like Starlink or 4G home broadband routers can fill the gap where fixed-line options are limited.

The USO guarantees every UK home at least 10 Mbps. At CB3 9NX, 0% of properties do not meet this threshold. 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 CB3 9NX is rated Medium. 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 CB3 9NX 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. Strong 4G coverage combined with limited fixed broadband means 4G home broadband could be a practical alternative here.

Suitability scores for CB3 9NX: remote working 35/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

CB3 9NX falls within the South Cambridgeshire local authority area. The immediate area is Grantchester, a distinct community within the wider district. The CB3 postcode area contains 378 postcodes on this site. Superfast broadband across CB3 ranges from 0% to 100%. CB3 9NX is below the area average of 98%.

Broadband availability varies by provider and by property. At CB3 9NX, check individual coverage tools from BT, Sky, Virgin Media, and local operators. 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.

Grantchester offers a mix of residential properties and local amenities. The character of any area is best judged in person.

Pulling the data together for CB3 9NX, here is what stands out. South Cambridgeshire 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. Grantchester 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.

Numbers tell part of the story for CB3 9NX. Visit at different times of day. Talk to neighbours. Check mobile signal indoors. Walk the route to the nearest school or station. Test the broadband speed from inside the property. These things do not show up in data.

That is the full data picture for CB3 9NX in Grantchester. Use it alongside your own research. For the most current broadband speeds, run a live speed test from this page. Check back periodically as data is refreshed with new releases.