40, Knight Street is a Grade II* listed building in the East Hertfordshire local planning authority area, England. First listed on 6 June 1952. A C16 House. 1 related planning application.

40, Knight Street

WRENN ID
lapsed-lime-ash
Grade
II*
Local Planning Authority
East Hertfordshire
Constituency
Hertford and Stortford MP: Josh Dean (Lab)
Country
England
Date first listed
6 June 1952
Type
House
Address
40, Knight Street, Sawbridgeworth, CM21 9AX
OS grid reference
TL 483 148
Coordinates
51.81265, 0.15109
Source
Historic England listing

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

Description

This is a late 16th-century house, with significant alterations and refronting in the early 18th and early 19th centuries, and retaining 18th-century interiors. Originally timber-framed, the building now has two storeys and steep, old red tile roofs, hipped over the main part but gabled to the north. The north part of the building originally served as the service wing of a larger 16th-century house. The brick facade represents a partial rebuilding of the earlier structure. The facade displays a seamless transition between 18th and 19th-century brickwork, with red brick on the south and yellow brick on the north, without corresponding internal structural divisions.

The rear features a projecting staircase. The south part of the front was refronted around 1720 with red brick, incorporating lighter red dressings and gauged and moulded brick architectural details. Giant order pilasters define the corners. The two-storey, four-window-wide section has a parapet and segmental-headed window openings with projecting brick keystones. Sash windows, with 6/6 panes, are slightly recessed; the first-floor sashes have segmental heads, while those on the ground floor are square. The second window from the north has a higher sill level over the front door. A projecting plinth and brick entablature extend over the pilasters, featuring a panel on the parapet. Pilaster detailing includes a necking below the entablature, and the floor band and entablature mouldings break forward over each window's keystone. A narrow, two-storey extension of yellow brick was added in the 19th century, extending the brick front northward; it lacks a parapet and has a token brick band, with windows set lower than the main section. The windows have segmental-headed openings with rendered arches and slightly recessed sash windows.

The entrance hall and a panelled room on the south side retain their 18th-century character. The house is documented in Nathaniel Lloyd’s “A History of English Brickwork” (1928). It is a notable building, with a brick facade that predates that of number 28 Knight Street.

Local climate

40, Knight Street sits in one of the driest parts of the UK, with an average of 690 mm of rain a year. This makes it drier than 95% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 91% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, fewer than 52% 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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  • Related listed building consents — 1 application
  • 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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