Mymms Hall Farmhouse is a Grade II listed building in the Hertsmere local planning authority area, England. First listed on 20 May 1949. House. 6 related planning applications.
Mymms Hall Farmhouse
- WRENN ID
- scarred-jamb-cream
- Grade
- II
- Local Planning Authority
- Hertsmere
- Constituency
- Hertsmere MP: Sir Oliver Dowden (Con)
- Country
- England
- Date first listed
- 20 May 1949
- Type
- House
- Address
- Mymms Hall Farmhouse, Mutton Lane, EN6 3NL
- OS grid reference
- TL 232 019
- Coordinates
- 51.70268, -0.21737
- Source
- Historic England listing
Description
Mymms Hall Farmhouse is a house that has been converted into two dwellings. It has origins dating back to the early 16th century and was extended in the 17th century. The building was refronted and significantly altered in the 18th and 19th centuries. It features a timber frame with a brick casing and a tiled roof, designed in a half H plan with an apparent hall and crosswings, along with a rear extension on the right side.
The farmhouse is two storeys high with attics in the wings. The front has a four-bay central range, with the entrance located in the second bay from the right, which is sheltered by a Tuscan porch. On the ground floor, there is a canted bay with a crenellated parapet to the right, and two French windows to the left. The first floor has sash windows with cambered heads. The gables over the wings are bargeboarded, and there are two lower roofs over the main range. A large cement-rendered axial ridge stack is located at the center, featuring two diagonally set shafts.
The 17th-century extension at the rear right is fronted with stock bricks in a rat trap bond and has a tiled roof with a separate ridge. This extension is also two storeys high and has four unequally spaced bays, with a central entrance and glazing bar sashes with cambered heads. A large axial ridge stack is positioned to the right of center, with four diagonally set shafts, and there is a stack at the junction with the main range. A lower two-storey extension is located at the far right, which includes a lean-to addition. At the rear of this wing, there is an entrance under a porch and two Yorkshire casements.
The left and longer crosswing of the main range represents the smaller 16th-century house, which has been refronted and altered. Inside, there is an exposed cambered tie beam from the 16th century on the front wall of the left crosswing, along with a clasped purlin roof featuring queen struts and jowled posts. A chimney was inserted in the late 16th or early 17th century. The rear right extension has a roof of similar construction but has been largely rebuilt. Additionally, there are two arms of a homestead moat to the south.
Local climate
Mymms Hall Farmhouse 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 91% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 90% of listed buildings.
It experiences an average of 33 freeze-thaw cycles a year, fewer than 54% of listed buildings. Of these, 15 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.
- No sale records on file
- Related listed building consents — 6 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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