SG4 8SX

• 0 crimes within 500 mAugust, none in July eitherNorth Hertfordshire 015D: 39 a year per 1,000 peopleMap point
• Knebworth, 3.8 kmThe nearest station, in a straight lineExact point
• No schools within 800 mNearest is 1.6 km awayExact point
• No property in SG4 8SX listed at risk of floodingFrom rivers or the sea, with flood defences, in the Environment Agency's assessmentPostcode
• England’s least deprived 20%This neighbourhood, North Hertfordshire 015DNeighbourhood
• £418,857 average priceFor the whole of North Hertfordshire, July 2026Council
• No GP practices within 1 kmNone found within 2 kmPostcode
• No supermarkets within 1 kmNone found within 2 kmExact point
• Gigabit broadband for every home and business at SG4 8SXSuperfast for 100%. What can be ordered, January 2026Postcode
• Low road and rail noise at SG4 8SXRoad 54 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
• 9.8 µg/m³ nitrogen dioxideModelled yearly average for this 1 km square, 20251 km grid

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.

Your MP

• Kevin BonaviaLabourMP for Stevenage

As of 18 October 2026, from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

• 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.