AL4 0NX postcode in Colney Heath, Hertfordshire
AL4 0NX 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 0NX is, and what is near it
- AL4 0NX
- Other postcodes in AL4 0: press one for its page
- 4 schools
- 2 railway stations
- 3 GP practices
- 4 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 51.7354, longitude -0.2448)
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 0NX?
- Welwyn HatfieldDistrict council Welwyn Hatfield: bins, council tax, planning
- HertfordshireCounty council Hertfordshire: schools, roads, care
- Council tax bandSet for each home, not for a postcode. The bands and a year's charge around AL4 0NX Check a council tax band on GOV.UK
- HertfordshirePolice force area
- Welwyn HatfieldParliamentary constituency. Its MP is Andrew Lewin (Labour), as Parliament lists them. Contact Andrew Lewin
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 0NX?
Every home and business at AL4 0NX can get gigabit broadband from a line, Ofcom says.
Welwyn Hatfield: 88%
Welwyn Hatfield: 98%
The line marks the figure across Welwyn Hatfield.
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 0NX?
BinDayBuddy has not read Welwyn Hatfield Council's days for AL4 0NX today. It reads them from the council's own system when you ask.
Check the bin days for AL4 0NX on BinDayBuddySource: 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 0NX 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 0NX.
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 0NX: 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 0NX 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 postcodeSource: 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 0NX?
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.
- 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 postcodeSource: 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 0NX
HM Land Registry records no standard sales of homes in AL4 0NX 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 AL4 0NX?
The Valuation Office Agency counts about 730 homes in the neighbourhood around AL4 0NX. 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
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.
| Band | Homes around here | A year |
|---|---|---|
| Band A | about 100 (14%) | £1,635 |
| Band B | withheld | £1,907 |
| Band C | about 40 (5%) | £2,180 |
| Band D | about 100 (14%) | £2,452 |
| Band E | about 210 (29%) | £2,997 |
| Band F | about 140 (19%) | £3,542 |
| Band G | about 120 (16%) | £4,087 |
| Band H | about 20 (3%) | £4,905 |
When the homes were built
- 11% Before 1900
- 6% 1900 to 1918
- 23% 1919 to 1939
- 15% 1945 to 1964
- 14% 1965 to 1982
- 18% 1983 to 1999
- 4% 2000 to 2009
- 6% 2010 to 2019
- 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 0NX is in (ONS area E01035608), rounded by the VOA.
Check one home's band on GOV.UKSource: 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 0NX?
The nearest open schools to AL4 0NX, in a straight line. Distance is not a catchment.
Primary
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 0NX?
The nearest railway station to the centre of AL4 0NX is Welham Green Rail Station, 2.4 km away in a straight line.
- Welham Green Rail Station Railway station 2.4 kmCycle
- Brookmans Park 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.
4 bus stops within 400 metres, the nearest Tollgate Farm, 89 m away.
More stations near AL4 0NX, and how we find themSource: Department for Transport, NaPTAN, read 17 October 2026, Open Government Licence v3.0. How we use it
Which GP surgeries are near AL4 0NX?
The nearest GP practices to the centre of AL4 0NX, 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.
- Potterells Medical Centre Care Quality Commission rating: Good CQC report September 2026 · Phone 01707 273338 2.7 kmCycle
- Burvill House Surgery Care Quality Commission rating: Good CQC report August 2022, over 3 years old · Phone 01707 269091 3.1 kmCycle
- Lister House Surgery Care Quality Commission rating: Good CQC report February 2024 · Phone 01707 283450 3.5 kmCycle
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 0NX?
The nearest charging points to the centre of AL4 0NX, as OpenStreetMap had them on 20 October 2026:
- St Albans Supercharger Charging point · 8 chargers · CCS · up to 250 kW 2.8 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 MapSource: © OpenStreetMap contributors, Open Database Licence, map as of 20 October 2026. How we use it
Which dentists are near AL4 0NX?
The nearest to the centre of AL4 0NX, in a straight line. Those in England open their page at the Care Quality Commission, which inspects them. It gives few dentists a rating.
- Hilltop Dental Surgery Phone 01707 264144 1.7 kmCycle
- Welham Green Dental Practice Phone 01707 272942 1.9 kmCycle
- Hatfield Dental Phone 01707 266731 3.3 kmCycle
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 0NX?
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.
- One Hatfield Hospital Care Quality Commission rating: Good CQC report September 2019, over 3 years old · Phone 01707 443333 4.0 kmCycle
- Queen Elizabeth II Hospital Care Quality Commission rating: Requires improvement CQC report December 2019, over 3 years old · Phone 01438 314333 6.6 kmDrive
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 0NX?
The nearest care homes to the centre of AL4 0NX, in a straight line, with the Care Quality Commission's latest overall rating.
- The Laurel Phone 07988 810861 250 mWalk
- Rookery House Care Quality Commission rating: Requires improvement CQC report July 2023, over 3 years old · Phone 07988 810861 1.9 kmCycle
- Oak Cottage Care Quality Commission rating: Inadequate CQC report February 2026 · Phone 01707 269594 2.4 kmCycle
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 0NX?
The nearest NHS pharmacies to the centre of AL4 0NX, 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.
- Jade Pharmacy (South Hatfield) Mon to Fri 9am to 1pm, 2pm to 6pm; Sat and Sun closed · Phone 01707 262242 1.7 kmCycle
- Kean Pharmacy Mon to Fri 9am to 5:30pm; Sat 9am to 1pm; Sun closed · Phone 01707 262644 1.8 kmCycle
- Brookmans Park Pharmacy Mon to Fri 9am to 1pm, 2pm to 6pm; Sat and Sun closed · Phone 01707 652667 3.3 kmCycle
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 0NX?
The nearest vets to the centre of AL4 0NX on OpenStreetMap, in a straight line. Each opens its entry on the map, with its opening hours and website where they are mapped.
- Village Vet - Caytons Phone +44 1727 852667 2.8 kmCycle
- Bishops Veterinary Surgery Phone +44 1707 272772 3.2 kmCycle
- Equine Referral Hospital 3.4 kmCycle
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 0NX in a conservation area?
The centre of AL4 0NX 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 0NX?
Police.uk records 42 crimes and reports of anti-social behaviour within a mile of the centre of AL4 0NX in August 2026, the latest month it has published.
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 monthsSource: data.police.uk, from its download of 30 September 2026, Open Government Licence v3.0. How we use it
The official record for AL4 0NX
- Ward
- Welham Green and Hatfield South
- Parish
- North Mymms
- Region
- East of England
- Country
- England
- Built-up area
- Colney Heath
- 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
- Food hygiene ratings: Food hygiene ratings, from the Food Standards Agency
Around AL4 0NX
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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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