Southernwood is a Grade II listed building in the Dacorum local planning authority area, England. First listed on 26 January 1967. House.

Southernwood

WRENN ID
stranded-screen-grain
Grade
II
Local Planning Authority
Dacorum
Constituency
Harpenden and Berkhamsted MP: Victoria Collins (LD)
Country
England
Date first listed
26 January 1967
Type
House
Address
Southernwood, Trowley Hill Road, Flamstead, AL3 8EE
OS grid reference
TL 078 145
Coordinates
51.8192, -0.43723
Source
Historic England listing

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

Description

Southernwood is a house located on Trowley Hill Road, dating from the early 18th century for the front block, with rear wings likely from the 17th century. It features a late 20th-century front porch, door, and window frames. The building is constructed of sandy red brick in Flemish bond, with roughcast rear wings that are probably timber framed, and it has steep old red tile roofs, hipped on the front block.

The house is symmetrical, two storeys high with attics, and three windows wide, facing east. It has an ovolo moulded plinth course, a modillion brick eaves band, and a pronounced bellcast to the roof eaves. The central entrance is flanked by end chimneys, and there are two single-storey wings at the rear, with the southern wing being longer.

The front features tall windows with stained quoins around them, gauged flat arches that are dark stained, and cross windows with lattice leaded glazing. There is a county firemark present. The round-headed doorway has panelled reveals, a transom, and an impost with a continuous reeded band, leading to a 20th-century hardwood panelled door. The porch is supported by octagonal fluted posts. In the 1960s, the house had recessed sash windows with 6/6 panes and an 18th-century doorcase that included panelled reveals, an open triangular pediment on consoles, and a six-panel moulded door.

Local climate

Southernwood sits in a drier-than-average part of the UK, with an average of 730 mm of rain a year. This makes it drier than 80% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 77% of listed buildings.

It experiences an average of 33 freeze-thaw cycles a year, fewer than 53% of listed buildings. Of these, 16 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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