© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Pembrey Old Harbour is a post-medieval and modern pier located on the Carmarthenshire coast of Wales. The structure sits upon Silurian sedimentary bedrock, ancient rocks formed over 400 million years ago when this region lay beneath shallow seas. The harbour represents the maritime infrastructure developed to serve the local community and wider coastal trade during the post-medieval period onwards.
The pier's construction reflects the evolution of Welsh harbour facilities as coastal settlements sought improved access for fishing, cargo handling and communication. Built upon the solid foundation of Paleozoic sedimentary rock, the structure has withstood the challenging marine environment of the Bristol Channel coastline. The site's geology provided stable ground for the substantial stonework required to resist wave action and tidal forces.
Pembrey Old Harbour is protected as a scheduled monument under Cadw, the Welsh Heritage Monuments service, with the reference number CM296. This recognition reflects its significance as a physical record of post-medieval and modern economic activity and engineering along the South Wales coast. The harbour remains an important landmark within the local landscape, documenting the region's connection to maritime industry and coastal settlement patterns.
Pembrey Old Harbour is a scheduled monument protected by Cadw under reference CM296. View the official record →
Pembrey Old Harbour is a post-medieval and modern pier located on the Carmarthenshire coast of Wales. It is designated a Scheduled Ancient Monument by Cadw under reference CM296.
Pembrey Old Harbour dates from the post medieval/modern period, and is classified as a pier. It is one of over 32,000 scheduled monuments protected across the UK.
Pembrey Old Harbour is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is CM296.
Several scheduled monuments lie within 10 km, including St Cennydd's Church Cross-shaft (8.6 km), Three Camps on Harding's Down (9.4 km), Burnt Mound on Rhossili Down (9.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Pembrey Old Harbour's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Pembrey Old Harbour stands on Paleozoic sedimentary rocks, bedrock that formed in the Silurian. The rock here is sedimentary rocks.