CM20 3HL postcode in Harlow, Essex

CM20 3HL is a postcode in Harlow, in the Mark Hall ward. It is in the Harlow parliamentary constituency and the Essex police force area, and has been in use since January 1980.

Where CM20 3HL is, and what is near it

Map of CM20 3HL and what is near it Map of CM20 3HL: its centre point, with the 194 other postcodes in the CM20 3 sector, 4 schools, 2 railway stations (1 beyond the edge, shown by arrows), 3 GP practices and 15 bus stops. North is up; the scale bar is 500 m. CM20 3AB: also in CM20 3CM20 3AF: also in CM20 3CM20 3AG: also in CM20 3CM20 3AH: also in CM20 3CM20 3AN: also in CM20 3CM20 3AP: also in CM20 3CM20 3AQ: also in CM20 3CM20 3AS: also in CM20 3CM20 3AX: also in CM20 3CM20 3BA: also in CM20 3CM20 3BB: also in CM20 3CM20 3BD: also in CM20 3CM20 3BE: also in CM20 3CM20 3BG: also in CM20 3CM20 3BH: also in CM20 3CM20 3BJ: also in CM20 3CM20 3BL: also in CM20 3CM20 3BN: also in CM20 3CM20 3BQ: also in CM20 3CM20 3BS: also in CM20 3CM20 3BW: also in CM20 3CM20 3BY: also in CM20 3CM20 3DA: also in CM20 3CM20 3DB: also in CM20 3CM20 3DD: also in CM20 3CM20 3DE: also in CM20 3CM20 3DF: also in CM20 3CM20 3DG: also in CM20 3CM20 3DH: also in CM20 3CM20 3DJ: also in CM20 3CM20 3DL: also in CM20 3CM20 3DN: also in CM20 3CM20 3DP: also in CM20 3CM20 3DR: also in CM20 3CM20 3DT: also in CM20 3CM20 3DU: also in CM20 3CM20 3DW: also in CM20 3CM20 3DY: also in CM20 3CM20 3DZ: also in CM20 3CM20 3EA: also in CM20 3CM20 3EB: also in CM20 3CM20 3ED: also in CM20 3CM20 3EE: also in CM20 3CM20 3EF: also in CM20 3CM20 3EG: also in CM20 3CM20 3EH: also in CM20 3CM20 3EJ: also in CM20 3CM20 3EL: also in CM20 3CM20 3EN: also in CM20 3CM20 3EP: also in CM20 3CM20 3ER: also in CM20 3CM20 3ES: also in CM20 3CM20 3ET: also in CM20 3CM20 3EU: also in CM20 3CM20 3EW: also in CM20 3CM20 3EX: also in CM20 3CM20 3EY: also in CM20 3CM20 3EZ: also in CM20 3CM20 3FA: also in CM20 3CM20 3FB: also in CM20 3CM20 3FD: also in CM20 3CM20 3FF: also in CM20 3CM20 3GA: also in CM20 3CM20 3GN: also in CM20 3CM20 3GQ: also in CM20 3CM20 3HB: also in CM20 3CM20 3HD: also in CM20 3CM20 3HE: also in CM20 3CM20 3HF: also in CM20 3CM20 3HG: also in CM20 3CM20 3HH: also in CM20 3CM20 3HJ: also in CM20 3CM20 3HN: also in CM20 3CM20 3HP: also in CM20 3CM20 3HQ: also in CM20 3CM20 3HR: also in CM20 3CM20 3HS: also in CM20 3CM20 3HT: also in CM20 3CM20 3HU: also in CM20 3CM20 3HX: also in CM20 3CM20 3HY: also in CM20 3CM20 3HZ: also in CM20 3CM20 3JA: also in CM20 3CM20 3JB: also in CM20 3CM20 3JD: also in CM20 3CM20 3JE: also in CM20 3CM20 3JF: also in CM20 3CM20 3JH: also in CM20 3CM20 3JJ: also in CM20 3CM20 3JL: also in CM20 3CM20 3JN: also in CM20 3CM20 3JP: also in CM20 3CM20 3JR: also in CM20 3CM20 3JS: also in CM20 3CM20 3JT: also in CM20 3CM20 3JU: also in CM20 3CM20 3JW: also in CM20 3CM20 3JX: also in CM20 3CM20 3JY: also in CM20 3CM20 3LA: also in CM20 3CM20 3LB: also in CM20 3CM20 3LD: also in CM20 3CM20 3LE: also in CM20 3CM20 3LG: also in CM20 3CM20 3LH: also in CM20 3CM20 3LJ: also in CM20 3CM20 3LL: also in CM20 3CM20 3LN: also in CM20 3CM20 3LP: also in CM20 3CM20 3LR: also in CM20 3CM20 3LS: also in CM20 3CM20 3LT: also in CM20 3CM20 3LU: also in CM20 3CM20 3LW: also in CM20 3CM20 3LX: also in CM20 3CM20 3LY: also in CM20 3CM20 3LZ: also in CM20 3CM20 3NA: also in CM20 3CM20 3NB: also in CM20 3CM20 3ND: also in CM20 3CM20 3NE: also in CM20 3CM20 3NG: also in CM20 3CM20 3NH: also in CM20 3CM20 3NJ: also in CM20 3CM20 3NL: also in CM20 3CM20 3NN: also in CM20 3CM20 3NP: also in CM20 3CM20 3NR: also in CM20 3CM20 3NT: also in CM20 3CM20 3NU: also in CM20 3CM20 3NW: also in CM20 3CM20 3NX: also in CM20 3CM20 3PA: also in CM20 3CM20 3PB: also in CM20 3CM20 3PD: also in CM20 3CM20 3PE: also in CM20 3CM20 3PF: also in CM20 3CM20 3PG: also in CM20 3CM20 3PH: also in CM20 3CM20 3PJ: also in CM20 3CM20 3PL: also in CM20 3CM20 3PN: also in CM20 3CM20 3PP: also in CM20 3CM20 3PQ: also in CM20 3CM20 3PR: also in CM20 3CM20 3PS: also in CM20 3CM20 3PT: also in CM20 3CM20 3PU: also in CM20 3CM20 3PX: also in CM20 3CM20 3PY: also in CM20 3CM20 3QA: also in CM20 3CM20 3QB: also in CM20 3CM20 3QD: also in CM20 3CM20 3QE: also in CM20 3CM20 3QF: also in CM20 3CM20 3QG: also in CM20 3CM20 3QH: also in CM20 3CM20 3QJ: also in CM20 3CM20 3QL: also in CM20 3CM20 3QN: also in CM20 3CM20 3QP: also in CM20 3CM20 3QR: also in CM20 3CM20 3QS: also in CM20 3CM20 3QT: also in CM20 3CM20 3QU: also in CM20 3CM20 3QW: also in CM20 3CM20 3QX: also in CM20 3CM20 3QY: also in CM20 3CM20 3RA: also in CM20 3CM20 3RB: also in CM20 3CM20 3RD: also in CM20 3CM20 3RE: also in CM20 3CM20 3RF: also in CM20 3CM20 3RG: also in CM20 3CM20 3RH: also in CM20 3CM20 3RL: also in CM20 3CM20 3RN: also in CM20 3CM20 3RP: also in CM20 3CM20 3RQ: also in CM20 3CM20 3RR: also in CM20 3CM20 3RS: also in CM20 3CM20 3RT: also in CM20 3CM20 3RU: also in CM20 3CM20 3RW: also in CM20 3CM20 3RX: also in CM20 3CM20 3RY: also in CM20 3CM20 3RZ: also in CM20 3CM20 3SA: also in CM20 3CM20 3SD: also in CM20 3CM20 3SX: also in CM20 3CM20 3SY: also in CM20 3CM20 3SZ: also in CM20 3 Harlow Mill station 2.5 kmHarlow CM20 3HL Map of CM20 3HL and what is near it Map of CM20 3HL: its centre point, with the 194 other postcodes in the CM20 3 sector, 4 schools, 2 railway stations (1 beyond the edge, shown by arrows), 3 GP practices and 15 bus stops. North is up; the scale bar is 500 m. Netteswell CM20 3HL
  • CM20 3HL
  • Other postcodes in CM20 3: press one for its page
  • 4 schools
  • 2 railway stations
  • 3 GP practices
  • 15 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 51.7701, longitude 0.1163)

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 CM20 3HL?

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 CM20 3HL?

Every home and business at CM20 3HL can get gigabit broadband from a line, Ofcom says.

Share of homes and businesses that can get it

Gigabit (1,000 Mbit/s)

CM20 3HL 100% Harlow 91%

Superfast (30 Mbit/s or more)

CM20 3HL 100% Harlow 97%
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 CM20 3HL?

BinDayBuddy has not read Harlow Council's days for CM20 3HL today. It reads them from the council's own system when you ask.

Check the bin days for CM20 3HL 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 CM20 3HL 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 CM20 3HL.

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 Harlow

The Environment Agency publishes this for the whole council, not for CM20 3HL: 7,221 properties in Harlow are at high risk (13.3% of all its properties). All the figures for Harlow

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 CM20 3HL 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 CM20 3HL?

Homes in CM20 3 sold for a typical £330,000 in the 12 months to August 2026, across 69 sales, up 4.3% on the 12 months before, HM Land Registry's figures show.

£330,000 typical price, the 12 months to August 2026
£316,250 12 months to August 2025
▲ up 4.3% on the 12 months before
  • Semi-detached £380,000 5 sales
  • Terraced £335,000 55 sales
  • Flat or maisonette £187,500 9 sales

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

Across the whole CM20 district: a typical £325,000 from 195 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 CM20 3HL

HM Land Registry records 2 standard sales of homes in CM20 3HL from January 2024 to August 2026, the latest on 26 June 2026. 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

What council tax band are homes near CM20 3HL?

The Valuation Office Agency counts about 610 homes in the neighbourhood around CM20 3HL. Over half of them (77%) are in council tax band C. More were built from 1945 to 1964 than in any other period (84%). 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 CM20 3HL

Band D in Harlow for 2026‑27: £2,299. For the bands the homes here are in, a year's council tax runs from £1,532 (band A) to £2,810 (band E); band C, the most common, is £2,043.

BandHomes around hereA year
Band Aabout 30 (5%)£1,532
Band Babout 90 (15%)£1,788
Band Cabout 470 (77%)£2,043
Band Dabout 10 (2%)£2,299
Band Eabout 10 (2%)£2,810
Band Ffewer than 5£3,320
Band Gwithheld£3,831
Band Hfewer than 5£4,597

When the homes were built

  1. None Before 1900
  2. None 1900 to 1918
  3. None 1919 to 1939
  4. 84% 1945 to 1964
  5. 11% 1965 to 1982
  6. 5% 1983 to 1999
  7. None 2000 to 2009
  8. None 2010 to 2019
  9. None 2020 or later

Before 1900, 1900 to 1918, 1919 to 1939, 2000 to 2009, 2010 to 2019, 2020 or later: none of the homes the VOA counts here.

Averages for Harlow 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 CM20 3HL is in (ONS area E01021847), 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 CM20 3HL?

The nearest open schools to CM20 3HL, in a straight line. Distance is not a catchment.

Find and compare schools in England, on GOV.UK More schools near CM20 3HL, 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 CM20 3HL?

The nearest railway station to the centre of CM20 3HL is Harlow Town Rail Station, 1.9 km away in a straight line.

  • Harlow Town Rail Station Railway station 1.9 kmCycle
  • Harlow Mill Rail Station Railway station 2.5 kmCycle

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

15 bus stops within 400 metres, the nearest Blackbush Spring, 80 m away.

More stations near CM20 3HL, 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 CM20 3HL?

The nearest GP practices to the centre of CM20 3HL, 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 CM20 3HL?

0 within 1 km 2 within 3 km

The nearest charging points to the centre of CM20 3HL, as OpenStreetMap had them on 20 October 2026:

  • Chargemaster Charging point · 2 chargers · CCS, CHAdeMO 2.6 kmCycle
  • Chargemaster Charging point · 2 chargers · Type 2, CHAdeMO 2.6 kmCycle

OpenStreetMap is mapped by volunteers. It does not have every charger, and not every one it has gives its speed or plugs. Check a charger's own app before you set off.

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 CM20 3HL?

The nearest to the centre of CM20 3HL, 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 CM20 3HL?

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 CM20 3HL?

The nearest care homes to the centre of CM20 3HL, 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 CM20 3HL?

The nearest NHS pharmacies to the centre of CM20 3HL, 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 CM20 3HL?

The nearest vets to the centre of CM20 3HL 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 CM20 3HL in a conservation area?

The centre of CM20 3HL 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 CM20 3HL?

Police.uk records 447 crimes and reports of anti-social behaviour within a mile of the centre of CM20 3HL in August 2026, the latest month it has published.

Violence and sexual offences147 reports
Anti-social behaviour55 reports
Shoplifting51 reports
Public order36 reports
Criminal damage and arson35 reports
Other theft35 reports

Also: drugs 22, vehicle crime 19, burglary 15, other crime 10, robbery 8, possession of weapons 8, bicycle theft 4, theft from the person 2.

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 CM20 3HL

Ward
Mark Hall
Parish
Not in a parish
Region
East of England
Country
England
Built-up area
Harlow
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 CM20 3HL

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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