No.1 Reservoir is a Grade II listed building in the Cheltenham local planning authority area, England. First listed on 2 April 2015. Reservoir.
No.1 Reservoir
- WRENN ID
- sacred-floor-root
- Grade
- II
- Local Planning Authority
- Cheltenham
- Constituency
- Cheltenham MP: Max Wilkinson (LD)
- Country
- England
- Date first listed
- 2 April 2015
- Type
- Reservoir
- OS grid reference
- SO 973 221
- Coordinates
- 51.89816, -2.03985
- Source
- Historic England listing
Description
No. 1 Reservoir is an underground reservoir built in 1824 for the Cheltenham Water Works Company, designed by civil engineer James Walker. It has a capacity of 413,000 gallons.
The reservoir is constructed from limestone, with a brick roof. The entrance portal is made of rubble stone with limestone ashlar dressings and features wrought-iron railings. The portal, located above ground on higher ground at the rear, is approximately 2.5 meters high. It includes an entrance bay with a square top, a central doorway with a flat limestone lintel, and limestone ashlar quoins. Curving ashlar walls flank the portal, sweeping downwards and forward to meet the ground, topped with spear-headed railings that extend to either side.
The underground reservoir itself measures 25.6 meters square and has an internal height of 4.3 meters. It consists of four parallel rectangular chambers with walls made of limestone masonry, inverted-arched masonry floors, and brick jack-arched roofs. Each internal wall features four arched openings that allow water to flow between the chambers.
Local climate
No.1 Reservoir receives an average of 800 mm of rain a year. This makes it drier than 55% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 52% of listed buildings.
It experiences an average of 42 freeze-thaw cycles a year, more than 80% of listed buildings. Of these, 21 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
- No related consent applications matched
- 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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