College Bow, Municipal Buildings, Church Street, Dumbarton is a Grade B listed building in the West Dunbartonshire local planning authority area, Scotland. First listed on 3 March 1971. Arch.

College Bow, Municipal Buildings, Church Street, Dumbarton

WRENN ID
sleeping-landing-rush
Grade
B
Local Planning Authority
West Dunbartonshire
Constituency
West Dunbartonshire MP: Douglas McAllister (Lab)
Country
Scotland
Date first listed
3 March 1971
Type
Arch
OS grid reference
NS 397 755
Coordinates
55.94585, -4.56704
Source
Historic Environment Scotland listing

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

Description

College Bow is a structure dating from around 1453. It was removed and re-erected on College Street in 1850, and then moved to its current location in 1907. The building features a single pointed arch that springs from supporting columns, which is the only identified fragment remaining from St Mary's Collegiate Church. The structure is made of ashlar, with the outer faces of the supporting columns faced in polished ashlar, likely added during the 1907 relocation.

Local climate

College Bow, Municipal Buildings, Church Street, Dumbarton sits in one of the wettest parts of the UK, with an average of 1,490 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.

It experiences an average of 47 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 26 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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  • 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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