The Portman Chapel is a Grade I listed building in the Dorset local planning authority area, England. First listed on 14 July 1955. A 1745 Chapel. 3 related planning applications.

The Portman Chapel

WRENN ID
steep-zinc-pine
Grade
I
Local Planning Authority
Dorset
Constituency
North Dorset MP: Simon Hoare (Con)
Country
England
Date first listed
14 July 1955
Type
Chapel
Address
The Portman Chapel, Bryanston Old Buildings
OS grid reference
ST 874 070
Coordinates
50.86285, -2.17946
Source
Historic England listing

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

Description

The Portman Chapel is a parish church, now a private chapel, built in 1745 with a late 19th-century vestry added. The exterior features rendered walls with rusticated stone quoins that form angle pilasters, and it has slate roofs with pedimented stone gables. The nave and chancel are undifferentiated, and there is a south vestry. The north wall includes two Palladian windows with stone architraves and glazing bars, although the westernmost window has part of its architrave missing. There is a blind Palladian window at the east end. The south wall has a round-headed window that blocks a former priest's door, flanked by Ionic columns and an entablature with a reeded frieze and paterae. The west doorway is also flanked by Ionic columns that support a segmental pediment above a panelled door. The west end features a wooden bell-cote with a clock beneath a lead-covered cupola.

Inside, notable features include a coved ceiling, fielded oak panels on the walls, an 18th-century painted plaster and wood reredos, and several 18th-century monuments.

Local climate

The Portman Chapel receives an average of 810 mm of rain a year. This makes it drier than 52% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 63% of listed buildings.

It experiences an average of 25 freeze-thaw cycles a year, fewer than 73% of listed buildings. Of these, 10 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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