21 Main St., Randalstown, Co.Antrim is a Grade B1 listed building in the Antrim and Newtownabbey local planning authority area, Northern Ireland. First listed on 20 September 1974. 1 related planning application.

21 Main St., Randalstown, Co.Antrim

WRENN ID
secret-screen-solstice
Grade
B1
Local Planning Authority
Antrim and Newtownabbey
Constituency
South Antrim MP: Robin Swann (UUP)
Country
Northern Ireland
Date first listed
20 September 1974
Irish grid reference
J 082 904
Coordinates
54.74994, -6.31943
Source
NI Environment Agency listing

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

Local climate

21 Main St., Randalstown, Co.Antrim receives an average of 950 mm of rain a year. This makes it wetter than 73% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 57% of listed buildings.

It experiences an average of 16 freeze-thaw cycles a year, fewer than 84% of listed buildings. Of these, 9 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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
  • No flood data for this area
  • 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. Northern Bank, 5 Main Street, Randalstown, Antrim, Co Antrim, BT41 3AB Grade B1 46 m
  2. The Forge, John Street, Randalstown, Antrim, Co Antrim Grade B1 105 m
  3. The White House, New Street, Randalstown, Antrim, Co Antrim Grade Record Only 111 m
  4. 7 Parade Ground, Randalstown, Antrim, Co Antrim, BT41 3AA Grade B2 118 m
  5. 6 Parade Ground, Randalstown, Antrim, Co Antrim, BT41 3AA Grade B2 119 m
  6. 5 Parade Ground, Randalstown, Antrim, Co Antrim, BT41 3AA Grade B2 124 m
  7. 4 Parade Ground, Randalstown, Antrim, Co Antrim, BT41 3AA Grade B2 128 m
  8. 3 Parade Ground, Randalstown, Antrim, Co Antrim, BT41 3AA Grade B2 132 m
  9. 26 New Street, Randalstown, Antrim, Co Antrim, BT41 3AF Grade B1 133 m
  10. 2 Parade Ground, Randalstown, Antrim, Co Antrim, BT41 3AA Grade B2 137 m