The Old Watch Tower and Attached Walls, in Grounds of the Grange is a Grade II listed building in the Northumberland local planning authority area, England. Former harbourmaster's office.
The Old Watch Tower and Attached Walls, in Grounds of the Grange
- WRENN ID
- unlit-keystone-pine
- Grade
- II
- Local Planning Authority
- Northumberland
- Constituency
- North Northumberland MP: David Smith (Lab)
- Country
- England
- Type
- Former harbourmaster's office
- Address
- The Old Watch Tower and Attached Walls, in Grounds of the Grange, Northumberland Street, Alnmouth
- OS grid reference
- NU 245 105
- Coordinates
- 55.38799, -1.61401
- Source
- Historic England listing
Description
The Old Watch Tower and attached walls, located in the grounds of The Grange, is a former harbourmaster's office, likely built in the early 18th century. The structure is primarily constructed of brick in an irregular stretcher bond, except for the external faces and lower courses of the office's walls, which are made of large squared stone. The walls feature flat slab coping, and the building has a Welsh slate roof.
The office is a two-storey square building with a front that displays two round arches, which are fitted with 20th-century glazing, and a renewed 16-pane sash window above, supported by a soldier lintel. The roof is pyramidal and topped with a restored griffin weathervane. The left side of the building has a similar window, while the right side features a restored stone stair leading to a renewed door, also under a soldier lintel.
To the south, there is an attached wall that stands 1.5 metres high with gabled coping, and to the east, a longer attached wall rises to 5 metres, featuring flat coping and a slightly higher central section.
Local climate
The Old Watch Tower and Attached Walls, in Grounds of the Grange receives an average of 840 mm of rain a year. This makes it wetter than 56% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 55% of listed buildings.
It experiences an average of 8 freeze-thaw cycles a year, fewer than 94% of listed buildings. Of these, 5 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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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