Folly Farmhouse is a Grade II listed building in the Milton Keynes local planning authority area, England. First listed on 3 March 1952. Farmhouse.

Folly Farmhouse

WRENN ID
unlit-mullion-pine
Grade
II
Local Planning Authority
Milton Keynes
Constituency
Milton Keynes North MP: Chris Curtis (Lab)
Country
England
Date first listed
3 March 1952
Type
Farmhouse
Address
Folly Farmhouse, Long Street Road, Hanslope
OS grid reference
SP 796 475
Coordinates
52.12018, -0.8374
Source
Historic England listing

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

Description

Folly Farmhouse, formerly known as Hales Folly, is a farmhouse dating from the 17th century that was refronted in 1751, as indicated by a stone tablet. The building has three bays and three storeys. The south front features chequer brickwork with a diaper pattern, while the sides and rear are constructed from rubblestone, with a two-storey rear wing. The roofs are covered with slate.

The windows are segmental-headed and have stone key blocks. The second floor has two-light small paned casements, while the ground and first floors feature larger three-light casements. The entrance door is off-centre and is accessed via a trellis porch, with a blank window recess above that contains the date plaque. The ground floor has three windows and a door, the first floor has three windows and a blank window, and the second floor has three windows only.

Local climate

Folly Farmhouse sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 86% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 86% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 56% 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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  • 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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