CM21 9AA postcode in Sawbridgeworth, Hertfordshire

CM21 9AA is a postcode in Sawbridgeworth, in the Sawbridgeworth ward of East Hertfordshire. It is in the Hertford and Stortford parliamentary constituency and the Hertfordshire police force area, and has been in use since January 1980. It is a large-user postcode, which Royal Mail gives to a single address that gets a lot of mail.

Flooding Not on the at-risk list The Environment Agency lists no home or business here in an area at risk from rivers or the sea Typical price £375,000 Homes sold in CM21 9, last 12 months. ▼ 2.7% on the year before Nearest school Fawbert and Barnard Infants' School 250 m in a straight line Nearest station Sawbridgeworth 800 m in a straight line

Where CM21 9AA is, and what is near it

Map of CM21 9AA and what is near it Map of CM21 9AA: its centre point, with the 174 other postcodes in the CM21 9 sector, 4 schools (2 beyond the edge, shown by arrows), 2 railway stations (1 beyond the edge, shown by arrows), 3 GP practices (2 beyond the edge, shown by arrows) and 5 bus stops, over roads, rivers and built-up areas. North is up; the scale bar is 250 m. CM21 9AB: also in CM21 9CM21 9AD: also in CM21 9CM21 9AE: also in CM21 9CM21 9AG: also in CM21 9CM21 9AH: also in CM21 9CM21 9AJ: also in CM21 9CM21 9AN: also in CM21 9CM21 9AQ: also in CM21 9CM21 9AR: also in CM21 9CM21 9AT: also in CM21 9CM21 9AX: also in CM21 9CM21 9AY: also in CM21 9CM21 9AZ: also in CM21 9CM21 9BA: also in CM21 9CM21 9BB: also in CM21 9CM21 9BD: also in CM21 9CM21 9BE: also in CM21 9CM21 9BG: also in CM21 9CM21 9BH: also in CM21 9CM21 9BJ: also in CM21 9CM21 9BL: also in CM21 9CM21 9BN: also in CM21 9CM21 9BQ: also in CM21 9CM21 9BW: also in CM21 9CM21 9DA: also in CM21 9CM21 9DB: also in CM21 9CM21 9EB: also in CM21 9CM21 9EF: also in CM21 9CM21 9EH: also in CM21 9CM21 9EJ: also in CM21 9CM21 9EL: also in CM21 9CM21 9EN: also in CM21 9CM21 9EP: also in CM21 9CM21 9ER: also in CM21 9CM21 9ES: also in CM21 9CM21 9ET: also in CM21 9CM21 9EW: also in CM21 9CM21 9FD: also in CM21 9CM21 9FG: also in CM21 9CM21 9FH: also in CM21 9CM21 9FJ: also in CM21 9CM21 9FN: also in CM21 9CM21 9FP: also in CM21 9CM21 9FQ: also in CM21 9CM21 9FR: also in CM21 9CM21 9GY: also in CM21 9CM21 9GZ: also in CM21 9CM21 9HG: also in CM21 9CM21 9HJ: also in CM21 9CM21 9HL: also in CM21 9CM21 9HN: also in CM21 9CM21 9JE: also in CM21 9CM21 9JF: also in CM21 9CM21 9JG: also in CM21 9CM21 9JJ: also in CM21 9CM21 9JL: also in CM21 9CM21 9JN: also in CM21 9CM21 9JS: also in CM21 9CM21 9JT: also in CM21 9CM21 9JX: also in CM21 9CM21 9JY: also in CM21 9CM21 9JZ: also in CM21 9CM21 9LD: also in CM21 9CM21 9LJ: also in CM21 9CM21 9LL: also in CM21 9CM21 9LN: also in CM21 9CM21 9LZ: also in CM21 9CM21 9NA: also in CM21 9CM21 9NB: also in CM21 9CM21 9ND: also in CM21 9CM21 9NE: also in CM21 9CM21 9NF: also in CM21 9CM21 9NG: also in CM21 9CM21 9NH: also in CM21 9CM21 9NJ: also in CM21 9CM21 9NL: also in CM21 9CM21 9NP: also in CM21 9CM21 9NQ: also in CM21 9CM21 9NU: also in CM21 9CM21 9NX: also in CM21 9CM21 9PE: also in CM21 9CM21 9PF: also in CM21 9CM21 9PL: also in CM21 9CM21 9PX: also in CM21 9CM21 9PY: also in CM21 9CM21 9PZ: also in CM21 9CM21 9QA: also in CM21 9CM21 9QD: also in CM21 9CM21 9QE: also in CM21 9CM21 9QG: also in CM21 9CM21 9QH: also in CM21 9CM21 9QJ: also in CM21 9CM21 9QL: also in CM21 9CM21 9QN: also in CM21 9CM21 9QP: also in CM21 9CM21 9QU: also in CM21 9CM21 9QW: also in CM21 9CM21 9RA: also in CM21 9CM21 9RB: also in CM21 9CM21 9RE: also in CM21 9CM21 9RF: also in CM21 9CM21 9TD: also in CM21 9 GP 1.4 km2 places, 2.7–3.3 kmSawbridgeworth CM21 9AA Map of CM21 9AA and what is near it Map of CM21 9AA: its centre point, with the 174 other postcodes in the CM21 9 sector, 4 schools (2 beyond the edge, shown by arrows), 2 railway stations (1 beyond the edge, shown by arrows), 3 GP practices (2 beyond the edge, shown by arrows) and 5 bus stops, over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Leventhorpe 900 mGP 1.4 km2 places, 2.7–3.3 kmSawbridgeworth CM21 9AA
  • CM21 9AA
  • Other postcodes in CM21 9: press one for its page
  • 4 schools
  • 2 railway stations
  • 3 GP practices
  • 5 bus stops
  • 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 51.8126, longitude 0.1489)

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; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026; street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

Who looks after CM21 9AA?

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 CM21 9AA?

Ofcom gives no broadband figures for CM21 9AA. It reports postcodes with homes or businesses it can match to its data, so a new postcode, or one with no premises on its list, has none.

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 CM21 9AA?

BinDayBuddy reads bin days from councils' own collection systems. It may have the days for CM21 9AA.

Check the bin days for CM21 9AA 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 CM21 9AA 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 CM21 9AA.

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 East Hertfordshire

The Environment Agency publishes this for the whole council, not for CM21 9AA: 3,439 properties in East Hertfordshire are at high risk (4.3% of all its properties). All the figures for East Hertfordshire

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 CM21 9AA 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 CM21 9AA?

Homes in CM21 9 sold for a typical £375,000 in the 12 months to August 2026, across 84 sales, down 2.7% on the 12 months before, HM Land Registry's figures show.

£375,000 typical price, the 12 months to August 2026
£385,500 12 months to August 2025
▼ down 2.7% on the 12 months before
  • Detached £670,000 17 sales
  • Semi-detached £480,000 20 sales
  • Terraced £330,000 21 sales
  • Flat or maisonette £220,000 26 sales

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

Across the whole CM21 district: a typical £428,500 from 128 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 CM21 9AA

HM Land Registry records no standard sales of homes in CM21 9AA from January 2024 to August 2026. The prices above are for the homes around 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

What council tax band are homes near CM21 9AA?

The Valuation Office Agency counts about 890 homes in the neighbourhood around CM21 9AA. The largest share of them, 24%, are in council tax band C. More were built from 1965 to 1982 than in any other period (26%). 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 CM21 9AA

Band D in East Hertfordshire for 2026‑27: £2,455. For the bands the homes here are in, a year's council tax runs from £1,637 (band A) to £4,910 (band H); band C, the most common, is £2,182.

BandHomes around hereA year
Band Aabout 20 (2%)£1,637
Band Babout 160 (18%)£1,909
Band Cabout 210 (24%)£2,182
Band Dabout 150 (17%)£2,455
Band Eabout 210 (24%)£3,000
Band Fabout 70 (8%)£3,546
Band Gabout 60 (7%)£4,091
Band Habout 10 (1%)£4,910

When the homes were built

  1. 24% Before 1900
  2. 6% 1900 to 1918
  3. 9% 1919 to 1939
  4. 11% 1945 to 1964
  5. 26% 1965 to 1982
  6. 16% 1983 to 1999
  7. 6% 2000 to 2009
  8. 2% 2010 to 2019
  9. None 2020 or later

2020 or later: none of the homes the VOA counts here.

Averages for East Hertfordshire 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 CM21 9AA is in (ONS area E01023502), 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 CM21 9AA?

The nearest open schools to CM21 9AA, in a straight line. Distance is not a catchment.

Primary

Secondary

Find and compare schools in England, on GOV.UK More schools near CM21 9AA, 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 CM21 9AA?

The nearest railway station to the centre of CM21 9AA is Sawbridgeworth Rail Station, 800 metres away in a straight line.

  • Sawbridgeworth Rail Station Railway station 800 mWalk
  • Harlow Mill Rail Station Railway station 2.7 kmCycle

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

5 bus stops within 400 metres, the nearest White Lion PH, 112 m away.

More stations near CM21 9AA, 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 CM21 9AA?

The nearest GP practices to the centre of CM21 9AA, 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 CM21 9AA?

OpenStreetMap maps no public charging point within 3 km of the centre of CM21 9AA 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 CM21 9AA?

The nearest to the centre of CM21 9AA, 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 CM21 9AA?

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 CM21 9AA?

The nearest care homes to the centre of CM21 9AA, 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 pharmacies are near CM21 9AA?

The nearest NHS pharmacies to the centre of CM21 9AA, in a straight line. Those in England show the opening hours they gave the NHS (list published July 2026) and open their page on the NHS website. A few work online or by post only: check before you go.

Hours can change on bank holidays. For urgent help when a pharmacy is closed, call NHS 111.

Source: NHS Business Services Authority (phone numbers: NHS Organisation Data Service), Open Government Licence v3.0. How we use it

Which vets are near CM21 9AA?

The nearest vets to the centre of CM21 9AA 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 CM21 9AA in a conservation area?

The centre of CM21 9AA is in one area with planning rules of its own, as planning.data.gov.uk holds them:

Work on a home here, and on its trees, may need permission that it would not need elsewhere. The council's planning team has the rules for one address. Not every council has sent all its data.

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 CM21 9AA?

Police.uk records 69 crimes and reports of anti-social behaviour within a mile of the centre of CM21 9AA in August 2026, the latest month it has published.

Violence and sexual offences20 reports
Anti-social behaviour15 reports
Public order8 reports
Vehicle crime8 reports
Burglary5 reports
Criminal damage and arson4 reports

Also: drugs 3, other crime 3, shoplifting 1, other theft 1, robbery 1.

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 CM21 9AA

Ward
Sawbridgeworth
Parish
Sawbridgeworth
Region
East of England
Country
England
Built-up area
Sawbridgeworth
Rural or urban
Urban, nearer to a major town or city
In use since
January 1980

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

Where to check what we do not hold

Around CM21 9AA

Go wider

Every postcode in the same sector, district or postcode area.

CM21 9 sector CM21 district CM postcode area Sawbridgeworth postcodes

Questions about a postcode

Nearby postcodes

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

CM21 9QD20 mCM21 9AR40 mCM21 9AN50 mCM21 9GY50 mCM21 9QL70 mCM21 9AQ80 m
All of CM21

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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