The typical property in CA20
CA20 covers Seascale and Sellafield, the Cumbrian coast town adjacent to the UK's largest nuclear site.
Area summary
CA20 sits in Cumberland Council. The outcode covers Seascale, Sellafield village, Beckermet and parts of Calder Bridge. Sellafield is the UK's largest nuclear site and has been operational since 1947 (originally as a plutonium production plant; now primarily a decommissioning and waste management facility). Housing in Seascale is mixed: 1930s and postwar semis, Victorian villas, and newer estate development much of which was built specifically for Sellafield workers.
Seascale station sits on the Cumbrian Coast line and provides services to Carlisle and Barrow-in-Furness. The A595 provides road links.
Sellafield is the dominant employer in the wider area and shapes the local rental market significantly. Demographics include a substantial workforce-driven private-rented share.
Cumberland Council operates only mandatory HMO licensing. The Renters' Rights Act 2026 has abolished Section 21 evictions. The proposed 2030 EPC C standard, if enacted, will be a meaningful cost on older stock.
What the data shows
Researched facts
Buyer notes
- Sellafield workforce dominates local rental demand
- Nuclear site proximity may affect some insurance premiums
- Cumbrian Coast line service is a value driver
The full CA20 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.
CA20 property dataNearby CA postcode districts
Compare CA20 with adjacent areas in the same postcode district.