Harmston Hall Hospital is a Grade II* listed building in the North Kesteven local planning authority area, England. First listed on 23 August 1967. A Georgian Hospital. 2 related planning applications.
Harmston Hall Hospital
- WRENN ID
- high-brass-linden
- Grade
- II*
- Local Planning Authority
- North Kesteven
- Constituency
- Sleaford and North Hykeham MP: Dr Caroline Johnson (Con)
- Country
- England
- Date first listed
- 23 August 1967
- Type
- Hospital
- Period
- Georgian
- Address
- Harmston Hall Hospital, Church Lane, LN5 9SS
- OS grid reference
- SK 969 621
- Coordinates
- 53.14761, -0.55121
- Source
- Historic England listing
Description
This is a country house, now serving as a hospital administrative block. The main part of the house was built in 1710 for Sir George Thorold, and bears a rainwater head dated 1710. In 1775, Samuel Thorold added a taller north front, but this was later demolished in 1892 and replaced with a new front built in the same style as the original house. At the same time, the south front was restored, and the house was extended to the east and west.
The house is constructed of ashlar, set on a plinth with raised quoins and a band at first floor level. It has a deep, bracketed cornices under a slate hipped roof, punctuated by seven groups of ashlar stacks. The house is two storeys over a basement, with an attic above.
The south front, dating from the early 18th century, has a seven-bay section with a slightly projecting three-bay section topped by a pediment containing an oval window. The outer bays are slightly more widely spaced. There are six mullioned basement windows, six sash windows on the ground floor, and seven sashes above, all with segment-headed surrounds, bolection moulded surrounds, and a mix of 20th-century window frames and original 18th and 19th-century glazing bar sashes. A central doorway is approached by six steps over a bridge with a wrought iron balustrade. The door surround consists of panelled pilasters, topped with scroll brackets supporting an open curved pediment, and it has double glazed doors with a rectangular overlight. Two pedimented dormers are above. The four-bay section to the east has seven glazing bar sash windows and three pedimented dormers. A single bay, set well back to the west, has two glazing bar sash windows and a pedimented dormer.
The west front features a curved bay window with three recessed basement and three ground floor sashes, and a further pediment containing an oval window. The north front has twelve bays in total, with three bays to the west and six to the east, and projecting entrance bays between.
The late 19th-century interiors include a hall with a fine coloured marble fireplace.
Local climate
Harmston Hall Hospital sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 81% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 88% of listed buildings.
It experiences an average of 35 freeze-thaw cycles a year, more than 59% of listed buildings. Of these, 17 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 — 3 transactions since 2019
- 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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