AL4 0QS postcode in Colney Heath, Hertfordshire

AL4 0QS is a postcode in Colney Heath, in the Welham Green and Hatfield South ward of Welwyn Hatfield. It is in the Welwyn Hatfield parliamentary constituency and the Hertfordshire police force area, and has been in use since January 1980.

Where AL4 0QS is, and what is near it

Map of AL4 0QS and what is near it Map of AL4 0QS: its centre point, with the 290 other postcodes in the AL4 0 sector, 4 schools (3 beyond the edge, shown by arrows), 2 railway stations (2 beyond the edge, shown by arrows), 3 GP practices (3 beyond the edge, shown by arrows) and 2 bus stops. North is up; the scale bar is 500 m. AL4 0FS: also in AL4 0AL4 0FU: also in AL4 0AL4 0JR: also in AL4 0AL4 0JS: also in AL4 0AL4 0LG: also in AL4 0AL4 0LW: also in AL4 0AL4 0NE: also in AL4 0AL4 0NP: also in AL4 0AL4 0NR: also in AL4 0AL4 0NS: also in AL4 0AL4 0NU: also in AL4 0AL4 0NX: also in AL4 0AL4 0PA: also in AL4 0AL4 0PH: also in AL4 0AL4 0PL: also in AL4 0AL4 0PP: also in AL4 0AL4 0PQ: also in AL4 0AL4 0PR: also in AL4 0AL4 0PS: also in AL4 0AL4 0PT: also in AL4 0AL4 0PU: also in AL4 0AL4 0PX: also in AL4 0AL4 0PY: also in AL4 0AL4 0PZ: also in AL4 0AL4 0QA: also in AL4 0AL4 0QD: also in AL4 0AL4 0QE: also in AL4 0AL4 0QF: also in AL4 0AL4 0QG: also in AL4 0AL4 0QH: also in AL4 0AL4 0QJ: also in AL4 0AL4 0QL: also in AL4 0AL4 0QN: also in AL4 0AL4 0QP: also in AL4 0AL4 0QQ: also in AL4 0AL4 0QR: also in AL4 0AL4 0QT: also in AL4 0AL4 0QW: also in AL4 0AL4 0RX: also in AL4 0AL4 0SB: also in AL4 0 Links Hatfield Academy 1.6 kmSchool 1.6 kmWelham Green station 2.4 kmGP 2.9 kmHill End AL4 0QS Map of AL4 0QS and what is near it Map of AL4 0QS: its centre point, with the 290 other postcodes in the AL4 0 sector, 4 schools (2 beyond the edge, shown by arrows), 2 railway stations (2 beyond the edge, shown by arrows), 3 GP practices (3 beyond the edge, shown by arrows) and 2 bus stops. North is up; the scale bar is 500 m. School 1.6 kmWelham Green station 2.4 kmGP 2.9 kmHill End AL4 0QS
  • AL4 0QS
  • Other postcodes in AL4 0: press one for its page
  • 4 schools
  • 2 railway stations
  • 3 GP practices
  • 2 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 51.7410, longitude -0.2441)

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 AL4 0QS?

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 AL4 0QS?

Every home and business at AL4 0QS can get gigabit broadband from a line, Ofcom says.

Share of homes and businesses that can get it

Gigabit (1,000 Mbit/s)

AL4 0QS 100% Welwyn Hatfield 88%

Superfast (30 Mbit/s or more)

AL4 0QS 100% Welwyn Hatfield 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 AL4 0QS?

BinDayBuddy reads bin days from councils' own collection systems. It may have the days for AL4 0QS.

Check the bin days for AL4 0QS 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 AL4 0QS 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 AL4 0QS.

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 Welwyn Hatfield

The Environment Agency publishes this for the whole council, not for AL4 0QS: 1,254 properties in Welwyn Hatfield are at high risk (2% of all its properties). All the figures for Welwyn Hatfield

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 AL4 0QS 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 AL4 0QS?

Homes in AL4 0 sold for a typical £701,250 in the 12 months to August 2026, across 112 sales, down 3.6% on the 12 months before, HM Land Registry's figures show.

£701,250 typical price, the 12 months to August 2026
£727,500 12 months to August 2025
▼ down 3.6% on the 12 months before
  • Detached £790,000 31 sales
  • Semi-detached £710,000 51 sales
  • Terraced £543,000 21 sales
  • Flat or maisonette £310,000 9 sales

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

Across the whole AL4 district: a typical £640,000 from 305 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 AL4 0QS

HM Land Registry records 3 standard sales of homes in AL4 0QS from January 2024 to August 2026, the latest on 26 July 2024. The middle sale was £550,000, from £500,000 to £610,000. Across AL4 0, the typical price in the 12 months to August 2026 was £701,250. 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 AL4 0QS?

The Valuation Office Agency counts about 730 homes in the neighbourhood around AL4 0QS. The largest share of them, 29%, are in council tax band E. More were built from 1919 to 1939 than in any other period (23%). 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 AL4 0QS

Band D in Welwyn Hatfield for 2026‑27: £2,452. For the bands the homes here are in, a year's council tax runs from £1,635 (band A) to £4,905 (band H); band E, the most common, is £2,997.

BandHomes around hereA year
Band Aabout 100 (14%)£1,635
Band Bwithheld£1,907
Band Cabout 40 (5%)£2,180
Band Dabout 100 (14%)£2,452
Band Eabout 210 (29%)£2,997
Band Fabout 140 (19%)£3,542
Band Gabout 120 (16%)£4,087
Band Habout 20 (3%)£4,905

When the homes were built

  1. 11% Before 1900
  2. 6% 1900 to 1918
  3. 23% 1919 to 1939
  4. 15% 1945 to 1964
  5. 14% 1965 to 1982
  6. 18% 1983 to 1999
  7. 4% 2000 to 2009
  8. 6% 2010 to 2019
  9. 3% 2020 or later

Averages for Welwyn Hatfield 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 AL4 0QS is in (ONS area E01035608), 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 AL4 0QS?

The nearest open schools to AL4 0QS, in a straight line. Distance is not a catchment.

Find and compare schools in England, on GOV.UK More schools near AL4 0QS, 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 AL4 0QS?

The nearest railway station to the centre of AL4 0QS is Welham Green Rail Station, 2.4 km away in a straight line.

  • Welham Green Rail Station Railway station 2.4 kmCycle
  • Hatfield (Herts) Rail Station Railway station 3.2 kmCycle

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

2 bus stops within 400 metres, the nearest Roestock Lane, 163 m away.

More stations near AL4 0QS, 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 AL4 0QS?

The nearest GP practices to the centre of AL4 0QS, 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 AL4 0QS?

0 within 1 km 1 within 3 km

The nearest charging points to the centre of AL4 0QS, as OpenStreetMap had them on 20 October 2026:

  • St Albans Supercharger Charging point · 8 chargers · CCS · up to 250 kW 2.5 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 AL4 0QS?

The nearest to the centre of AL4 0QS, 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 AL4 0QS?

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 AL4 0QS?

The nearest care homes to the centre of AL4 0QS, 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 AL4 0QS?

The nearest NHS pharmacies to the centre of AL4 0QS, 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 AL4 0QS?

The nearest vets to the centre of AL4 0QS 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 AL4 0QS in a conservation area?

The centre of AL4 0QS 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 AL4 0QS?

Police.uk records 71 crimes and reports of anti-social behaviour within a mile of the centre of AL4 0QS in August 2026, the latest month it has published.

Anti-social behaviour28 reports
Violence and sexual offences19 reports
Other theft9 reports
Public order4 reports
Criminal damage and arson4 reports
Bicycle theft2 reports

Also: drugs 2, theft from the person 1, robbery 1, other crime 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 AL4 0QS

Ward
Welham Green and Hatfield South
Parish
North Mymms
Region
East of England
Country
England
Built-up area
Colney Heath
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 AL4 0QS

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

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