18-20, Main Street is a Grade II listed building in the North Northamptonshire local planning authority area, England. First listed on 2 August 1972. House.
18-20, Main Street
- WRENN ID
- last-pavement-soot
- Grade
- II
- Local Planning Authority
- North Northamptonshire
- Constituency
- Daventry MP: Stuart Andrew (Con)
- Country
- England
- Date first listed
- 2 August 1972
- Type
- House
- Address
- 18-20, Main Street, Sywell
- OS grid reference
- SP 823 672
- Coordinates
- 52.29692, -0.79439
- Source
- Historic England listing
Description
18-20 Main Street is a pair of three houses built between 1860 and 1864 for Lady Overstone. They are constructed from regularly coursed lias stone with brick dressings and feature a slate roof. Originally, each house had a two-unit plan and stands two storeys high. The front facade displays a three-window range consisting of two-light wood-mullioned windows with cast-iron lozenge glazing bars, all set under flat brick arches with brick dressings. The centre window on the first floor is a half dormer. The flanking bays project slightly, with the right bay having a one-window range. Slit windows are located at the apex of the roof. Number 19 features a 20th-century door to the left of centre, also under a flat brick arch with brick dressings. The eaves overhang with plain bargeboards, and there are brick stacks at the ridge. The left and right elevations each have gabled porches with three-light windows and half dormers. The interiors have not been inspected.
Local climate
18-20, Main 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 83% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 84% of listed buildings.
It experiences an average of 36 freeze-thaw cycles a year, more than 61% 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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- 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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