Chalcot House is a Grade II* listed building in the Wiltshire local planning authority area, England. A 18th century Country house. 2 related planning applications.
Chalcot House
- WRENN ID
- scattered-span-fog
- Grade
- II*
- Local Planning Authority
- Wiltshire
- Constituency
- South West Wiltshire MP: Dr Andrew Murrison (Con)
- Country
- England
- Type
- Country house
- Period
- 18th century
- Address
- Chalcot House, Dilton Marsh, BA13 4DF
- OS grid reference
- ST 842 488
- Coordinates
- 51.23837, -2.22636
- Source
- Historic England listing
Description
Country house, dating from the early 18th century, with elements of a late 17th-century house and later additions and alterations made in the late 18th century and 1872 by J.P. St Aubyn for the Phipps family. Constructed of Flemish bond brick with stone dressings, it has a stone slate hipped roof and brick stacks. The south front has three stories and five bays. The central doorway features a half-glazed door with Ionic columns and a pediment, set within a channelled, rusticated surround that includes a lion's mask. Flanking the door are two 12-pane sashes with alternate segmental and triangular pediments over an entablature and Ionic plasterwork. The first floor has two 12-pane sashes framing a central semi-circular niche containing an urn, with a matching arrangement of pediments above an entablature and Corinthian pilasters. Six-pane sashes are placed on the second floor, flanked by a central panel with swags and side panels also with swags. Egg and dart capitals adorn the pilasters, with an entablature below a plain blocking course. The right return has a 12-pane sash and three large sashes, all with flat arches and keystones. Cast-iron rainwater heads bear the initials CPPHM and the date 1872, and a plat band runs along the first floor. The rear elevation features five sashes and a blocking course. Remnants of a truncated 19th-century service wing remain to the right; a former dining room now serves as a kitchen and has a large, half-octagonal front with plate glass sashes. The left return presents two sashes on the ground and first floors, and two six-pane sashes on the second floor. A two-story 19th-century range attached to the left includes a canted bay window to the drawing room with French windows, and plate glass sashes on the first floor. The rear was remodelled in the 1970s, incorporating a half-octagonal porch with pilasters and the heraldic arms of the Phipps family, alongside a central gabled wing with a cornice. The interior was extensively refitted during alterations in 1871, featuring a rear stair hall with stone stairs and a cast-iron balustrade, along with joinery and fireplaces throughout the house. A late 18th-century staircase from the first floor to the attics is retained, with turned balusters and a moulded mahogany handrail. A late 17th-century roof truss is said to be incorporated within an attic partition wall. Extensive renovations in the 1970s by Pentagram Design Partnership included the demolition of the rambling 1870s service wing.
Local climate
Chalcot House receives an average of 850 mm of rain a year. This makes it wetter than 60% 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 35 freeze-thaw cycles a year, more than 55% of listed buildings. Of these, 15 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 1 transaction since 2025
- Related listed building consents — 2 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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