21 Castle Street, Aberdeen is a Grade B listed building in the Aberdeen City local planning authority area, Scotland. First listed on 12 January 1967. 3 related planning applications.

21 Castle Street, Aberdeen

WRENN ID
tattered-lancet-merlin
Grade
B
Local Planning Authority
Aberdeen City
Constituency
Aberdeen South MP: Douglas Lumsden (Con)
Country
Scotland
Date first listed
12 January 1967
Address
21 Castle Street, Aberdeen, AB11 5BQ
OS grid reference
NJ 945 064
Coordinates
57.14868, -2.09239
Source
Historic Environment Scotland listing

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

Description

The Clachan, located at 19-20 Castle Street in Aberdeen, is a possibly late 18th century, four-storey and attic, seven-bay Classical tenement building. The ground floor has been altered for commercial use, and there are projecting wings at the rear of the building. The exterior features grey granite ashlar, with rubble and render on the rear. The front of Nos 19 and 20 is distinguished by channelled Ionic pilasters that separate the openings at the ground level. There are rectangular pend entrance openings that are off-centre, with the one on the far right leading to Peacock's Close. The building has piended canted dormers.

The upper storeys predominantly feature 12-pane timber sash and case windows, while the shop on the right has plate glass windows. The roof is covered with grey slates, and there are raised skews. Tall, coped, brick and granite gable stacks complete the structure.

Local climate

21 Castle Street, Aberdeen receives an average of 880 mm of rain a year. This makes it wetter than 64% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 82% of listed buildings.

It experiences an average of 8 freeze-thaw cycles a year, fewer than 93% of listed buildings. Of these, 6 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 — 3 applications
  • 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. 1 Chapel Court, Aberdeen Grade B 10 m
  2. Castle Inn, 17 Castle Street, Aberdeen Grade B 19 m
  3. 5 Chapel Court, Aberdeen Grade B 22 m
  4. 5 Justice Street, Aberdeen Grade B 23 m
  5. 4 Chapel Court, Aberdeen Grade B 25 m
  6. 15, 16 Castle Street, Aberdeen Grade C 26 m
  7. St Peters Roman Catholic Church Presbytery, 3 Chapel Court, Aberdeen Grade B 27 m
  8. St Peter's Roman Catholic Church, 2 Chapel Court, Aberdeen Grade B 27 m
  9. Former School To South Of St Andrews Cathedral, King Street Grade C 28 m
  10. 12, 13 Castle Street, Aberdeen Grade C 35 m