18 and 20, High Street is a Grade II listed building in the North Northamptonshire local planning authority area, England. First listed on 31 March 1988. House.

18 and 20, High Street

WRENN ID
eternal-thatch-rook
Grade
II
Local Planning Authority
North Northamptonshire
Constituency
Corby and East Northamptonshire MP: Lee Barron (Lab)
Country
England
Date first listed
31 March 1988
Type
House
Address
18 and 20, High Street, Collyweston, PE9 3PW
OS grid reference
SK 995 028
Coordinates
52.61412, -0.53159
Source
Historic England listing

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

Description

Nos 18 and 20 High Street is a house that has been converted into two dwellings. The datestone indicates it was built in 1637, with alterations made in the 18th and 19th centuries. The building is constructed from squared coursed limestone and features a Collyweston slate roof. It originally had a two-unit plan with a central carriage arch. The structure is two storeys high with an attic and presents an irregular four-window range.

On the left side, there is a 17th-century five-light, two-storey, canted bay window with ovolo moulded stone mullions and a gable above that has moulded kneelers. The right side has large 19th-century casements set under wood lintels. In the attic, there is a central gabled eaves dormer that contains a 19th-century casement and a 17th-century pargetted gable with the inscribed date. A 20th-century door, located to the right of centre, is set under a flat stone arch and leads to No. 15.

To the left, there is an open cross passage under a wood lintel that was originally a carriage arch but has since been modified. The building features stone stacks at the ridge and end, and the bay to the right has been reconstructed in the 19th century. The interior has not been inspected, but it is noted to have some 17th-century plasterwork on the first floor.

Local climate

18 and 20, High Street 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 84% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 82% of listed buildings.

It experiences an average of 32 freeze-thaw cycles a year, fewer than 59% 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.

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