Mansion House

Mansion House is a Grade II* listed building located at No. 11 Market Place in Whittlesey. Originally listed as No. 10 (Post Office), it was built in the early 18th century and has since been converted into apartments. The structure is made of brick in Flemish bond, with gauged red brick used for dressings and details. It features a parapetted roof with swept end parapets and original end stacks. The building has a double pile main range with a kitchen wing at the rear, and it stands three storeys high.

The symmetrical facade is framed by giant corner pilasters and has a dentil cornice, divided by moulded brick bands. There are five recessed hung sash windows with arched top panes set in gauged arches, surrounded by rusticated detailing, stone sills, and red brick apron panels. The central doorway is adorned with an original doorcase featuring a broken segmental pediment on fluted pilasters and an entablature. The door itself is now half glazed but retains four original raised and fielded panels on the lower half. The rear wall is rendered but maintains similar corner pilasters and coved eaves, with a segmental arch and open boxing for a hung sash window on the staircase.

The kitchen wing, likely brick with a steeply pitched roof, is contemporary to the main building and has two storeys and an attic. The gable end features 20th-century fenestration that replaces the original windows, which have been enlarged. A later 18th-century addition at the rear has a 19th-century slate lean-to roof and an original panelled door.

Inside, both the ground and first floors have original doorways with doors of eight raised and fielded panels set in segmental arches. A fine open-string staircase with four flights and landings features three symmetrical balusters on each tread, clusters of similar balusters as newels, scroll tread ends, and a renewed swept rail. The staircase dado is decorated with raised and fielded panelling and fluted pilasters.