CB21 4QX postcode in South Cambridgeshire, Cambridgeshire

CB21 4QX is a postcode in South Cambridgeshire, in the Balsham ward. It is in the South Cambridgeshire parliamentary constituency and the Cambridgeshire police force area, and has been in use since September 2006.

Where CB21 4QX is, and what is near it

Map of CB21 4QX and what is near it Map of CB21 4QX: its centre point, with the 239 other postcodes in the CB21 4 sector, 4 schools (4 beyond the edge, shown by arrows), 2 railway stations (2 beyond the edge, shown by arrows) and 2 GP practices (2 beyond the edge, shown by arrows). North is up; the scale bar is 250 m. CB21 4QA: also in CB21 4CB21 4QB: also in CB21 4CB21 4QD: also in CB21 4CB21 4QE: also in CB21 4CB21 4QF: also in CB21 4CB21 4QG: also in CB21 4CB21 4QN: also in CB21 4CB21 4QQ: also in CB21 4CB21 4QR: also in CB21 4CB21 4QS: also in CB21 4CB21 4QT: also in CB21 4CB21 4QU: also in CB21 4CB21 4QY: also in CB21 4CB21 4RF: also in CB21 4CB21 4SJ: also in CB21 4 School 3.6 km2 places, 4.5–5.4 kmCastle Manor Academy 4.9 kmUnity Healthcare 5.1 kmGranta School 5.8 kmGreat Chesterford station 11.8 kmDullingham station 12.1 kmLinton CB21 4QX Map of CB21 4QX and what is near it Map of CB21 4QX: its centre point, with the 239 other postcodes in the CB21 4 sector, 4 schools (4 beyond the edge, shown by arrows), 2 railway stations (2 beyond the edge, shown by arrows) and 2 GP practices (2 beyond the edge, shown by arrows). North is up; the scale bar is 500 m. School 3.6 km4 places, 4.5–5.4 kmDullingham station 12.1 kmLinton CB21 4QX
  • CB21 4QX
  • Other postcodes in CB21 4: press one for its page
  • 4 schools
  • 2 railway stations
  • 2 GP practices
  • Further out, with the distance

Points are centre points, not buildings, and nothing drawn is a boundary. Names in italics are council wards: we hold no town or village names here. Open this area on OpenStreetMap (latitude 52.0929, longitude 0.3571)

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026; schools: Department for Education; stations and bus stops: Department for Transport; GP practices: NHS England; street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

Who looks after CB21 4QX?

ONS places a whole postcode in one council, one ward and one constituency, from a single point. A few postcodes cross a boundary, so an address at the edge can belong to the one next door. Your council tax bill or your poll card settles it for your address.

Council, police force area and constituency: ONS Postcode Directory, August 2026. What each council does: GOV.UK. The MP: UK Parliament, read 14 October 2026.

What broadband can you get at CB21 4QX?

97% of the homes and businesses at CB21 4QX can get superfast broadband (30 Mbit/s or more) from a line, and 10% gigabit, Ofcom says.

Share of homes and businesses that can get it

Gigabit (1,000 Mbit/s)

CB21 4QX 10% South Cambridgeshire 86%

Superfast (30 Mbit/s or more)

CB21 4QX 97% South Cambridgeshire 98%
Check one address, and mobile coverage, on Ofcom's checker Compare broadband at another postcode

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

When are the bins collected at CB21 4QX?

South Cambridgeshire District Council gives bin days for each home rather than each postcode. BinDayBuddy finds yours from your house number, from the council's own system.

Find the bin days for your home on BinDayBuddy

Source: BinDayBuddy, built from councils' own collection systems and public data. BinDayBuddy is run by Towpath Digital, which also runs this site. How we use it

Is CB21 4QX at risk of flooding?

From rivers and the sea, long term

The Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea does not include CB21 4QX.

Rivers and the sea only, for the land around buildings, not each building. GOV.UK's checker answers for one address, surface water included.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0.

From surface water, across South Cambridgeshire

The Environment Agency publishes this for the whole council, not for CB21 4QX: 3,011 properties in South Cambridgeshire are at high risk (3.1% of all its properties). All the figures for South Cambridgeshire

Source: Environment Agency, Risk of Flooding from Surface Water, properties at risk by local authority, version 2025-09, listed 18 September 2026, Open Government Licence v3.0.

Flood warnings

The centre of CB21 4QX is not in any of the Environment Agency's flood warning or alert areas. Part of the postcode may still be, so check your own address when you sign up.

Sign up for flood warnings, free, on GOV.UK Check flood risk at another postcode

Source: Environment Agency, flood warning areas read 17 October 2026. Open Government Licence v3.0. How we use these

What do homes sell for near CB21 4QX?

Homes in CB21 4 sold for a typical £422,500 in the 12 months to August 2026, across 98 sales, up 0.8% on the 12 months before, HM Land Registry's figures show.

£422,500 typical price, the 12 months to August 2026
£419,000 12 months to August 2025
▲ up 0.8% on the 12 months before
  • Detached £560,000 45 sales
  • Semi-detached £400,000 35 sales
  • Terraced £350,000 16 sales
  • Flat or maisonette 2 sales, too few to price

Each bar is that kind's typical price, against the most expensive kind here.

Across the whole CB21 district: a typical £461,000 from 166 sales.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Homes sold in CB21 4QX

HM Land Registry records one standard sale of homes in CB21 4QX from January 2024 to August 2026, the latest on 22 November 2024. Each sale below opens Land Registry's own record of it.

Sales at market value to a private buyer; the latest months are not complete. Own or live in a home listed here and would rather it were not? Ask us to take it off.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Food hygiene ratings at CB21 4QX

The Food Standards Agency lists one food business at CB21 4QX. Each opens the agency's own page for it, with what the council's inspector found.

Ratings run from 5, very good, to 0, urgent improvement necessary. A rating comes from the business's last inspection, and can change at the next.

Food hygiene ratings, from the Food Standards Agency

Source: Food Standards Agency, food hygiene ratings as published on 24 October 2026. Open Government Licence v3.0. How we use it

What council tax band are homes near CB21 4QX?

The Valuation Office Agency counts about 650 homes in the neighbourhood around CB21 4QX. The largest share of them, 26%, are in council tax band C. More were built before 1900 than in any other period (34%). A home's own band is set for that home: check it on GOV.UK.

Council tax bands, and a year's council tax

Council tax bands of the homes around CB21 4QX

Band D in South Cambridgeshire for 2026‑27: £2,536. For the bands the homes here are in, a year's council tax runs from £1,691 (band A) to £5,073 (band H); band C, the most common, is £2,254.

BandHomes around hereA year
Band Aabout 20 (3%)£1,691
Band Babout 40 (6%)£1,973
Band Cabout 170 (26%)£2,254
Band Dabout 120 (18%)£2,536
Band Eabout 100 (15%)£3,100
Band Fabout 110 (17%)£3,663
Band Gabout 80 (12%)£4,227
Band Habout 10 (2%)£5,073

When the homes were built

  1. 34% Before 1900
  2. 2% 1900 to 1918
  3. 6% 1919 to 1939
  4. 18% 1945 to 1964
  5. 15% 1965 to 1982
  6. 13% 1983 to 1999
  7. 6% 2000 to 2009
  8. 3% 2010 to 2019
  9. 3% 2020 or later

Averages for South Cambridgeshire before discounts, not any one home's bill.

Council tax: Ministry of Housing, Communities and Local Government, Council Tax levels set by local authorities in England 2026 to 2027, Table 10, published 25 March 2026, Open Government Licence v3.0. How we use it

Counts for the neighbourhood the centre of CB21 4QX is in (ONS area E01018220), rounded by the VOA.

Check one home's band on GOV.UK

Source: Valuation Office Agency, Council Tax: stock of properties, at 31 March 2026, Open Government Licence v3.0. How we use it

Which schools are near CB21 4QX?

The nearest open schools to CB21 4QX, in a straight line. Distance is not a catchment.

Find and compare schools in England, on GOV.UK More schools near CB21 4QX, and how we find them

Source: Department for Education, Get Information about Schools, read 17 October 2026, Open Government Licence v3.0. Each school opens its own record there. How we use it

Where is the nearest station to CB21 4QX?

The nearest railway station to the centre of CB21 4QX is Great Chesterford Rail Station, 11.8 km away in a straight line.

  • Great Chesterford Rail Station Railway station 11.8 kmDrive
  • Dullingham Rail Station Railway station 12.1 kmDrive

Straight-line distances from the centre point, not routes. Walk: under 1.2 km. Cycle: 1.2 to 5 km. Drive: further.

No bus stop within 400 metres in the Department for Transport's register.

More stations near CB21 4QX, and how we find them

Source: Department for Transport, NaPTAN, read 17 October 2026, Open Government Licence v3.0. How we use it

Which GP surgeries are near CB21 4QX?

The nearest GP practices to the centre of CB21 4QX, in a straight line. Each sets the area it takes patients from. In England, each opens its page at the Care Quality Commission, which inspects and rates it.

Find a GP on the NHS website

Source: NHS England, Organisation Data Service (GP practices), read 17 October 2026; ratings: Care Quality Commission, 1 October 2026, Open Government Licence v3.0. How we use it

Where can I charge an electric car near CB21 4QX?

OpenStreetMap maps no public charging point within 3 km of the centre of CB21 4QX on the map as of 20 October 2026. It does not have every charger: Open Charge Map's own map, linked below, may show more.

See more chargers on Open Charge Map

Source: © OpenStreetMap contributors, Open Database Licence, map as of 20 October 2026. How we use it

Which dentists are near CB21 4QX?

The nearest to the centre of CB21 4QX, in a straight line. Those in England open their page at the Care Quality Commission, which inspects them. It gives few dentists a rating.

Source: Care Quality Commission (directory of 14 October 2026), Open Government Licence v3.0. This uses Care Quality Commission information. How we use it

Which hospitals are nearest to CB21 4QX?

The nearest NHS and private hospitals and clinics in England, in a straight line, with the Care Quality Commission's latest overall rating. One in Wales or Scotland may be nearer.

Not every hospital has an accident and emergency department. In an emergency, call 999.

Source: Care Quality Commission (directory of 14 October 2026, ratings of 1 October 2026), Open Government Licence v3.0. This uses Care Quality Commission information. How we use it

Which care homes are near CB21 4QX?

The nearest care homes to the centre of CB21 4QX, in a straight line, with the Care Quality Commission's latest overall rating.

Source: Care Quality Commission (directory of 14 October 2026, ratings of 1 October 2026), Open Government Licence v3.0. This uses Care Quality Commission information. How we use it

Which vets are near CB21 4QX?

The nearest vets to the centre of CB21 4QX on OpenStreetMap, in a straight line. Each opens its entry on the map, with its opening hours and website where they are mapped.

OpenStreetMap may not have every vet. Out of hours, ring your own vet’s number first: the Royal College of Veterinary Surgeons says vets in practice must arrange round-the-clock emergency first aid and pain relief, themselves or through another service.

Source: © OpenStreetMap contributors, Open Database Licence, map as of 20 October 2026. How we use it

Is CB21 4QX in a conservation area?

The centre of CB21 4QX is not in any conservation area, listed building, tree preservation area, green belt or protected landscape that planning.data.gov.uk holds. Not every council has sent all its data, so check with the council before relying on it.

Source: planning.data.gov.uk, asked at the postcode's centre point. Open Government Licence v3.0. How we use it

How much crime is there near CB21 4QX?

Police.uk records 1 crimes and reports of anti-social behaviour within a mile of the centre of CB21 4QX in August 2026, the latest month it has published.

Anti-social behaviour1 report

Police.uk places each report at a nearby point, so this is an area, not a street.

Your local policing team on Police.uk How we work this out: crime by postcode, with the last 12 months

Source: data.police.uk, from its download of 30 September 2026, Open Government Licence v3.0. How we use it

The official record for CB21 4QX

Ward
Balsham
Parish
Horseheath
Region
East of England
Country
England
In use since
September 2006

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Around CB21 4QX

Nearby postcodes

The nearest postcodes in use, measured in a straight line between centre points.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode. How we use it

Check another postcode

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