Little Callipers is a Grade II listed building in the Three Rivers local planning authority area, England. First listed on 3 October 1985. House. 6 related planning applications.

Little Callipers

WRENN ID
noble-jamb-elder
Grade
II
Local Planning Authority
Three Rivers
Constituency
South West Hertfordshire MP: Mr Gagan Mohindra (Con)
Country
England
Date first listed
3 October 1985
Type
House
Address
Little Callipers, the Common, Sarratt, WD4 9BW
OS grid reference
TL 049 010
Coordinates
51.69825, -0.48271
Source
Historic England listing

Also on this page: sale history · EPC · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Little Callipers is a house dating from the mid to late 17th century, with extensions added in the 19th century and 1909, as indicated by the rainwater head. The original core of the house comprises a ground floor of brick, now rendered, and a timber-framed first floor covered in roughcast. Later brick additions are partially whitewashed. The roofs are tiled.

The original section of the house is a three-bay, single-story building with an attic. The front has an entrance to the left, and three windows with timber glazing bars on the ground floor. There are three gabled dormers in the attic. The left-hand gable end has a window and a decorative, imitation timber frame. A 19th-century addition is set back to the right, featuring a canted bay and a gabled dormer. An axial brick stack on the front pitch, with four diagonal shafts, adjoins the original range. The right-hand gable end of the original section has a first-floor oriel above a 20th-century lean-to. Gabled projections to the rear of the original section connect to substantial late 19th-century and 1909 additions. The earlier addition has a tile-hung canted bay to the right, an entrance, and a sash window to the left, beneath a half-hipped roof. The later addition has a canted bay, two-light casements, a dentilled gable, and two full-height canted bays to the rear.

Inside, the ground floor features chamfered bearers, jowled posts, braces to cambered tie beams, queen struts to collars clasping purlins, and wind braces.

Local climate

Little Callipers sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 84% 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 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.
  • Sale history — 1 transaction since 2018
  • 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
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