St Margaret's House is a Grade II listed building in the Dacorum local planning authority area, England. First listed on 19 March 1987. House. 6 related planning applications.
St Margaret's House
- WRENN ID
- dreaming-pedestal-ash
- Grade
- II
- Local Planning Authority
- Dacorum
- Constituency
- Harpenden and Berkhamsted MP: Victoria Collins (LD)
- Country
- England
- Date first listed
- 19 March 1987
- Type
- House
- Address
- St Margaret's House, 5, Great Gaddesden, HP1 3BZ
- OS grid reference
- TL 022 113
- Coordinates
- 51.79138, -0.51948
- Source
- Historic England listing
Description
St. Margaret's House is an early 18th-century house that was converted into two houses in the 19th century and later united with a south wing added around 1980. The building is constructed of red brick and features a steep old red tile roof, with some timber framing visible in the north gable. It is a small two-storey house with two structural bays, facing east, and includes a rear outshut and end chimneys. The projecting gabled south wing has a casement window on each floor.
The main house has segmental arches over all windows, with three first-floor casement windows arranged in a 2:1:2 light pattern. On the ground floor, there are two 2-light windows and originally two doors between them; the right-hand door has been converted into a window, while the left-hand door remains in use and features a raised and fielded 18th-century four-panel door beneath a small gabled porch. An offset plinth continues inside the rear outshut, which is likely not original.
Inside, the house has exposed joists on both floors, indicating the presence of former attics above. There are axial beams above the ground floor and cross beams above the first floor. An inserted stair in the left-hand part of the house cuts through the chamfer of an axial beam, indicating it is not original. The roof structure consists of clasped-purlin construction with two bays, featuring inclined straight queen-posts in the central truss (which lacks a collar) and straight wind-braces to the purlins made of large scantling. The building was formerly numbered 5 and 6.
Local climate
St Margaret's House 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 78% 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 36 freeze-thaw cycles a year, more than 64% 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
- Sale history — 3 transactions since 1999
- 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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