The typical property in BN18
BN18 covers Arundel, Walberton and the western Arun Valley, West Sussex with the Norman castle and the South Downs National Park.
Area summary
BN18 sits in Arun District Council, West Sussex. The outcode covers Arundel, Walberton, Yapton, Slindon and surrounding villages. Arundel is a small market town dominated by Arundel Castle (Grade I-listed Norman castle, the seat of the Duke of Norfolk) and the Grade I-listed Catholic Cathedral of Our Lady and St Philip Howard. The town centre is a tightly controlled conservation area. Most of the outcode sits within the South Downs National Park. Housing is mixed: medieval and Georgian listed buildings in Arundel, Victorian villas, 1930s semis, and pockets of newer development.
Arundel station sits on the Arun Valley line and provides services to London Victoria in around 90 minutes and Brighton via Ford. The A27 trunk road runs through the outcode.
Employment patterns include the castle and cathedral, tourism, agriculture and commuting into Brighton, Worthing and London. Demographics skew older and more affluent.
Arun District operates only mandatory HMO licensing in BN18. The Renters' Rights Act 2026 has abolished Section 21 evictions. The proposed 2030 EPC C standard, if enacted, will be a substantial cost on the listed and pre-1900 stock that dominates Arundel.
What the data shows
Researched facts
Buyer notes
- Listed buildings dominate Arundel centre, consent rules are very tight
- National Park designation limits development on many rural plots
- Solid-wall older stock has very high EPC upgrade costs
The full BN18 data page
Sold price history, crime totals, EPC distribution, council tax bands and more, pulled live from HM Land Registry, Police UK and the EPC Register.
BN18 property dataNearby BN postcode districts
Compare BN18 with adjacent areas in the same postcode district.