Post Mill is a Grade II* listed building in the Mid Suffolk local planning authority area, England. First listed on 9 December 1955. A C18 Windmill.
Post Mill
- WRENN ID
- hollow-spindle-briar
- Grade
- II*
- Local Planning Authority
- Mid Suffolk
- Constituency
- Central Suffolk and North Ipswich MP: Patrick Spencer (Con)
- Country
- England
- Date first listed
- 9 December 1955
- Type
- Windmill
- Address
- Post Mill, Mill Hill, Framsden
- OS grid reference
- TM 191 597
- Coordinates
- 52.19244, 1.20541
- Source
- Historic England listing
Description
Framsden Mill is a post mill dating from around 1760, which was modernised in 1836 when it was raised and a roundhouse was built, as indicated by a date on a brick. The mill underwent restoration between 1966 and 1973. It features a timber-framed and weatherboarded buck with three floors and a felted roof, alongside a two-storey roundhouse made of red brick. The mill's winding mechanism is operated by a fantail mounted above the steps; while the fan carriage has been restored, the fantail itself is currently dismantled and stored inside the mill. One pair of patent sails remains intact. Most of the machinery dates from the 1836 modernisation, carried out by John Whitmore of Wickham Market, although the brakewheel is the original, modified to a clasp-arm construction. The windshaft, upright shaft, wallower, and spurwheel are all made of cast iron, with stone nuts also in cast iron and wooden cogs. The mill contains two pairs of underdriven millstones located in the breast. The sack hoist is powered by a pulley mounted behind the brakewheel. In the late 19th century, the buck was extended to the rear to accommodate a flour dresser, with the drive taken from the brakewheel via a skew gear mounted on a layshaft. This mill is a notable example of 19th-century modernisation of an older post mill, still retaining much of its 18th-century structure today.
Local climate
Post Mill sits in one of the driest parts of the UK, with an average of 680 mm of rain a year. This makes it drier than 99% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 83% of listed buildings.
It experiences an average of 27 freeze-thaw cycles a year, fewer than 71% of listed buildings. Of these, 14 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.
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- No EPC on record for this property
- No sale records on file
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- 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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