Lock-Up is a Grade II* listed building in the Somerset local planning authority area, England. First listed on 11 March 1968. A C17 Lock-up.

Lock-Up

WRENN ID
hidden-lead-lichen
Grade
II*
Local Planning Authority
Somerset
Constituency
Frome and East Somerset MP: Anna Sabine (LD)
Country
England
Date first listed
11 March 1968
Type
Lock-up
Address
Lock-Up, Gay Street, Mells
OS grid reference
ST 726 489
Coordinates
51.23935, -2.3937
Source
Historic England listing

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

Description

The lock-up, dating from the 17th century, is a small rectangular structure built from Doulting rubble with dressed quoins. It features a pyramidal stone tile roof topped with a circular stone capping. The front has a central pointed arch door opening set in a block surround, which is fitted with a studded vertical plank door that has an iron surround and strap hinges. There is also a small square peephole with a hinged iron barred grille. Inside, there is a second door of a similar style. This lock-up is noted for being an unusually complete survival of its kind.

Local climate

Lock-Up receives an average of 870 mm of rain a year. This makes it wetter than 63% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 69% of listed buildings.

It experiences an average of 36 freeze-thaw cycles a year, more than 63% of listed buildings. Of these, 16 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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  • 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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