49, 49a, and 51, High Street is a Grade II listed building in the Hertsmere local planning authority area, England. First listed on 12 August 1985. House. 8 related planning applications.

49, 49a, and 51, High Street

WRENN ID
fading-rafter-wind
Grade
II
Local Planning Authority
Hertsmere
Constituency
Hertsmere MP: Sir Oliver Dowden (Con)
Country
England
Date first listed
12 August 1985
Type
House
Address
49, 49a, and 51, High Street, WD23 1BD
OS grid reference
TQ 132 952
Coordinates
51.64452, -0.36517
Source
Historic England listing

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

Description

This is a house, later used as shops and offices, dating from the late 16th or early 17th century, with alterations in the 19th and 20th centuries. It is timber-framed and has a roughcast exterior with applied timbers. The roof is tiled, with older tiles on number 49 and modern tiles on number 51. The building is an L-shaped hall house. It has two storeys and an attic with a double jetty to the front and left return. The front has three windows. The ground floor has shop fronts, and the central entrance has a reeded surround dating from the early 19th century. The first floor has three sash windows with leaded panes; the central window is smaller. Applied timber studs with ogee heads are visible on each panel. The jettied attic rests on shaped corbels and has decorative applied timber. A central gabled dormer window has two leaded lights. A large central ridge stack has a central square shaft and two diagonal shafts. The left gable end has casement windows and ovolo moulded bressumers. Original brackets remain below the sill of the first-floor window. Some original timber framing has been restored with 19th-century applied studs. A timber-framed cross wing to the rear right has a cement roughcast finish, a slightly lower ridge line, and an exposed purlin in the rear gable. Further additions are visible at the rear. Inside, there are ovolo moulded axial binding beams with bar stops and a clasped purlin roof.

Local climate

49, 49a, and 51, High 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 93% 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 30 freeze-thaw cycles a year, fewer than 65% of listed buildings. Of these, 13 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 — 5 transactions since 2001
  • Related listed building consents — 8 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
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