[1] Cowper House was built in 1664, following the destruction of many buildings in Chester during the Civil War.

Thomas Cowper had been mayor of Chester in 1641–42 and a Royalist supporter in the Civil War.

[1] The house is constructed in sandstone, brick, and timber framing with plaster panels.

The top storey has a ten-light mullioned and transomed casement window containing leaded lights.

[1] Two steps lead down from the street to the front undercroft which is 16m long.

In the third storey is a sandstone fireplace with a beam inscribed "TC 1661" on each side of a blank shield.