AL4 0NX
PostcodeA postcode in Welwyn Hatfield 017C, Welham Green and Hatfield South ward, Welwyn Hatfield.
This report describes the area around AL4 0NX, not any one home. Each figure is shown at the level it was published: the postcode, a 1 km square, the neighbourhood or the whole council, as its tag says.
Around AL4 0NX
- 5 crimes within 500 mAugust, down 17% on JulyWelwyn Hatfield 017C: 68 a year per 1,000 peopleMap point
- Welham Green, 2.4 kmAbout 29 minutes on footExact point
- No schools within 800 mNearest is 1.4 km awayExact point
- No property in AL4 0NX listed at risk of floodingFrom rivers or the sea, with flood defences, in the Environment Agency's assessmentPostcode
- England’s least deprived 30%This neighbourhood, Welwyn Hatfield 017CNeighbourhood
- £448,681 average priceFor the whole of Welwyn Hatfield, July 2026Council
- No GP practices within 1 kmNone found within 2 kmPostcode
- No supermarkets within 1 kmNearest is 1.6 km awayExact point
- Gigabit broadband for every home and business at AL4 0NXSuperfast for 100%. What can be ordered, January 2026Postcode
- Moderate road and rail noise at AL4 0NXRoad 56 dB, rail under 40 dB or not modelled (Lden, modelled for 2021)Postcode
- In a radon Affected Area, class 2 of 61% to 3% of homes in this 1 km square are estimated to be at or above the radon Action Level1 km grid
- 13.4 µg/m³ nitrogen dioxideModelled yearly average for this 1 km square, 20251 km grid
Schools near AL4 0NX
Within 2 km, nearest first| School | Distance | Latest Ofsted outcome |
|---|---|---|
| Colney Heath Primary School Primary | 1.4 km 17 minutes on foot | Good (overall), November 2022, before the school changed |
| St Mary's Church of England VA Primary School, Welham Green Primary. 50% met the expected standard at KS2 (2024/25) | 1.5 km 19 minutes on foot | Graded inspection, March 2025: no overall grade |
| De Havilland Primary School Primary. 61% met the expected standard at KS2 (2024/25) | 1.9 km 24 minutes on foot | Good (overall), September 2023 |
Distances are in a straight line. Councils and schools set catchments and admissions, which Open Index doesn’t map: the council’s schools pages. Ofsted outcomes are as published, each with its date; grades under different frameworks can’t be compared.
Recent sales near AL4 0NX
Latest sale at each postcode- £590,000Fellowes Lane, AL4 0QAJune 2025, semi-detached, established, freehold240 m
- £605,000Tollgate Road, AL4 0PXJanuary 2025, semi-detached, established, freehold290 m
- £725,000Tollgate Road, AL4 0PYNovember 2025, terraced, established, freehold300 m
- £925,000Osier Road, AL4 0LGDecember 2025, detached, new build, freehold360 m
- £475,000Admirals Close, AL4 0QDOctober 2023, terraced, established, freehold360 m
- £472,500Salix Place, AL4 0LWNovember 2025, semi-detached, new build, freehold380 m
- £668,000Withy Close, AL4 0JRSeptember 2025, semi-detached, new build, freehold450 m
- £637,500Hall Gardens, AL4 0QFMarch 2025, detached, established, freehold460 m
HM Land Registry sales at nearby postcodes, by street and postcode only, never a house number. Sales take weeks to be registered. Every sale on the map
The neighbourhood: Welwyn Hatfield 017C
Everything about Welwyn Hatfield 017CThe postcode district: AL4
Everything about AL4Your MP
- Andrew LewinLabourMP for Welwyn Hatfield
As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.
Where these figures come from
- Street-level crimeAugust 2026Map point
- Rail and Tube stations2024/25Exact point
- SchoolsExact point
- Flood risk by postcodeJune 2026Postcode
- English Indices of Deprivation 20252025Neighbourhood
- Average house priceJuly 2026Council
- GP practicesPostcode
- SupermarketsExact point
- Broadband by postcodeJanuary 2026Postcode
- Road and rail noise by postcode2021Postcode
- Radon potential1 km grid
- Nitrogen dioxide (NO2)20251 km grid
Counts, distances and walking times are worked out by Open Index from each layer’s published points and outlines, in a straight line from the postcode’s centre. Street names © OpenStreetMap contributors.