Seaweed Hut on foreshore is a Grade II listed building in the Pembrokeshire Coast National Park local planning authority area, Wales. First listed on 8 December 1995. Hut.

Seaweed Hut on foreshore

WRENN ID
pale-plinth-heron
Grade
II
Local Planning Authority
Pembrokeshire Coast National Park
Constituency
Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
Country
Wales
Date first listed
8 December 1995
Type
Hut
Address
Seaweed Hut on foreshore, Freshwater West, Castlemartin
OS grid reference
SR 885 993
Coordinates
51.65335, -5.05848
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The Seaweed Hut is a small, 19th-century structure on the foreshore at Freshwater West Bay, built to support the local laver bread trade. Established in 1879 by Swansea speculators who employed women from the nearby village of Angle to gather seaweed, these drying huts were constructed by the men of the village. By the early 20th century, around twenty such huts existed in the area, used for storing and drying seaweed before it was sent to Pembroke and Swansea. The trade ceased around 1940.

This surviving hut, thought to date from before 1906, is smaller than others illustrated in Country Life in 1967, which were approximately twice as long. Originally, a 1975 survey described it as ruinous with only four pairs of rafters, most having a small collar near the apex; planking remained on the east side, and traces of reed thatch, and possibly marram grass thatch, were noted. The hut was restored in 1978 by the Pembroke Borough Junior Civic Trust, and is now owned by the National Trust and cared for by the Pembrokeshire Coast National Park.

The hut measures approximately 3.3 metres wide by 4.5 metres long, standing on a levelled turf platform. It is constructed with six rafters on each side, resting on a base of stones set in the ground, and joined at the apex without a ridge piece. The rafters are horizontally boarded with 5cm gaps and reed-thatched, with turf at the apex. Vertical boarding is present at each gable. The floor is made of sand, where the seaweed would have been dried. The door is now missing.

The hut is listed to recognize its significance as evidence of a local trade in gathering a natural foodstuff, likely rooted in ancient traditions. Despite restoration, it demonstrates simple construction methods.

Local climate

Seaweed Hut on foreshore sits in a wetter-than-average part of the UK, with an average of 1,120 mm of rain a year. This makes it wetter than 88% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.

It experiences an average of 1 freeze-thaw cycle a year, fewer than 99% of listed buildings. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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