The Watch-House is a Grade II listed building in the East Suffolk local planning authority area, England. First listed on 22 November 2004. Coastguard watch-house.

The Watch-House

WRENN ID
woven-stair-willow
Grade
II
Local Planning Authority
East Suffolk
Constituency
Suffolk Coastal MP: Jenny Riddell-Carpenter (Lab)
Country
England
Date first listed
22 November 2004
Type
Coastguard watch-house
Address
The Watch-House, Sizewell Gap, Leiston
OS grid reference
TM 475 627
Coordinates
52.20734, 1.62169
Source
Historic England listing

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

Description

This is a coastguard watch-house, built around 1823. It is constructed of brick with a slate roof and a brick stack. Originally a single-story open plan building, a second story was added to the eastern end to create a watch-tower. The eastern facade retains a triangular bay window at first floor level, supported by a dragon beam, which sits above a planked double door at ground floor level. This door provided access for the rocket-cart. A planked door is located on the southern facade, and a square window provides additional light to the watch-tower at first floor level. The original double door on the western elevation has been filled in with brick. A small musket gun port on the northern elevation, originally opposite the southern door, has also been filled in. A small coal store has been added to the east of the building.

Internally, the ground floor has been divided at the western end by a modern stud wall. The original wooden runners for the rocket-cart remain in the eastern part of the building. A staircase with a removable section below a small landing is located in the south-eastern corner, providing access to the first floor. A planked wooden cupboard is in the north-eastern corner.

At first floor level, the stairwell is surrounded by a rail with hexagonal knobs and can be closed by a trap door. The walls are partly lined with tongue-and-groove panelling. An original fireplace with a mantle shelf, incorporating brackets for fixing a telescope, is located on the northern wall. A musket rack is on the west wall, which is boarded to the ceiling. A small peep hole, which can be opened or closed by a sliding wooden panel, is positioned to the south of the musket rack.

The watch-house was built in the 1820s, during the consolidation of the preventative waterguard and the formation of the coastguard. A lease for the watch-house at Leiston is recorded from 1823, and the building is specifically mentioned in the 1840 tithe records. It remained in use until the 1980s and is now owned by Suffolk Coastal District Council. This watch-house is a particularly fine example, having remained largely unaltered and retaining a significant number of its original fixtures and fittings.

Local climate

The Watch-House receives an average of 780 mm of rain a year. This makes it drier than 62% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 79% of listed buildings.

It experiences an average of 6 freeze-thaw cycles a year, fewer than 96% of listed buildings. Of these, 4 follow at least 1 mm of rain in the preceding 48 hours. 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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