Mercer House is a Grade II listed building in the Hyndburn local planning authority area, England. First listed on 9 March 1984. House. 4 related planning applications.

Mercer House

WRENN ID
twisted-stronghold-clover
Grade
II
Local Planning Authority
Hyndburn
Constituency
Hyndburn MP: Sarah Smith (Lab)
Country
England
Date first listed
9 March 1984
Type
House
Address
Mercer House, Mercer Park, BB5 5PS
OS grid reference
SD 743 310
Coordinates
53.77552, -2.39062
Source
Historic England listing

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

Description

Mercer House, formerly known as Oakenshaw Cottage, is a house built in 1802 that is currently unoccupied. It is constructed from coursed dressed stone and features a slate roof with gable chimneys. The building has a double-pile three-bay plan with an attached service wing at the rear and stands two storeys high. Architectural details include quoins, a moulded cornice, and a parapet. The design is almost symmetrical, with a panelled door offset slightly to the left, which has a semi-circular fanlight and an open-pedimented architrave above it. There is a tall window above the door, and on each floor, there are two coupled tall windows, all with plain one surrounds, although these are now boarded. The rear of the house features a continuous three-tiered opening in the centre, with a panelled door at the ground floor and a stairlight with glazing bars above. To the left, there is a triple window on each floor, and to the right, there are coupled windows, all of which are sashed with glazing bars.

The house was built by Thomas Hargreaves, who was a partner in Oakenshaw Printworks, and it was later occupied by John Mercer, the inventor of Mercerisation.

Local climate

Mercer House sits in one of the wettest parts of the UK, with an average of 1,280 mm of rain a year. This makes it wetter than 94% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 89% of listed buildings.

It experiences an average of 51 freeze-thaw cycles a year, more than 93% of listed buildings. Of these, 28 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.
  • No sale records on file
  • Related listed building consents — 4 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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