18 and 20, Kneesworth Street is a Grade II listed building in the North Hertfordshire local planning authority area, England. First listed on 11 June 1976. House.
18 and 20, Kneesworth Street
- WRENN ID
- fallen-gallery-mallow
- Grade
- II
- Local Planning Authority
- North Hertfordshire
- Constituency
- North East Hertfordshire MP: Chris Hinchliff (Lab)
- Country
- England
- Date first listed
- 11 June 1976
- Type
- House
- Address
- 18 and 20, Kneesworth Street, Royston, SG8 5AA
- OS grid reference
- TL 355 407
- Coordinates
- 52.04883, -0.02447
- Source
- Historic England listing
Description
Nos 18 and 20 on Kneesworth Street are buildings dating from the 16th century or early 17th century. They feature colour washed rough plaster and a tiled roof with a coved cornice. A central, massive red brick chimneystack has been partly rebuilt. The buildings are two storeys high with attics and have two ground floor canted bay sash windows. There are also three lattice casement windows with wooden mullions and transoms, featuring pointed arched lights that oversail the first floor. The lower 19th-century north wing has an eaves cornice and a low pitched roof, with a colour washed brick ground floor that includes two sash windows set in reveals under cambered arches. Nos 14 to 22 (even) form a group with these buildings.
Local climate
18 and 20, Kneesworth Street sits in one of the driest parts of the UK, with an average of 700 mm of rain a year. This makes it drier than 92% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 78% 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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- 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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