Old Harbour Wall is a Grade II listed building in the Northumberland local planning authority area, England. Harbour wall. 1 related planning application.

Old Harbour Wall

WRENN ID
sheer-tin-pigeon
Grade
II
Local Planning Authority
Northumberland
Constituency
North Northumberland MP: David Smith (Lab)
Country
England
Type
Harbour wall
Address
Old Harbour Wall, Garden Terrace, Alnmouth
OS grid reference
NU 244 104
Coordinates
55.38737, -1.61516
Source
Historic England listing

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

Description

The Old Harbour Wall is a Grade II listed structure, likely built in the 18th century. It is constructed from large squared stones and features a coping made of large irregular slabs. The wall stands 0.8 metres high as it runs west from Garden Terrace, then turns north alongside the tidal flats, where this section rises to 1.8 metres high externally and 0.8 metres internally. The final section of the wall turns westwards and then north again, with a rebuilt upper part that has gabled coping, ending in a rough ramp-down. The overall length of the wall is 250 metres. This structure is included in the listing for its historical significance, as Alnmouth was an important corn port in the 18th century. The harbour became silted after a flood in 1806, which altered the course of the River Aln.

Local climate

Old Harbour Wall 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
  • Related listed building consents — 1 application
  • 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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Nearby listed buildings

  1. The Old Watch Tower and Attached Walls, in Grounds of the Grange Grade II 100 m
  2. 14, Northumberland Street Grade II 166 m
  3. Seafield Grade II 171 m
  4. The Schooner Hotel Grade II 173 m
  5. Aln House Grade II 174 m
  6. K6 Telephone Kiosk Grade II 176 m
  7. 7 and 7a, Northumberland Street Grade II 187 m
  8. Seabank Grade II 191 m
  9. The Galleon Grade II 192 m
  10. The Aln Grade II 196 m