Dudley House including attached wall and gates

This is a large house, dated 1882, built by Ralph Gardiner, a master plasterer known for his work at Dulwich College. It was originally designed as a showroom to display his plasterwork skills, and was soon extended to the left for service quarters and to the right to showcase additional plasterwork. Later in the 20th century, the windows were replaced and the roof was retiled with 20th-century pantiles. The house is built of stucco, with a roof now covered in pantiles.

The original central section is three windows wide and two storeys high, with a three-window, two-storey addition to the left and a single-storey, one-bay addition to the right. The ground floor of the central part features vermiculated rustication, while the first floor is roughcast. The gable front has elaborate stuccoed bargeboards with trefoil cresting, a central moulded pendant and finial, and end brackets with floral designs. Quoins are present, and the window surrounds are quoined. A moulded band separates the floors. The gable displays the date in two panels and two shields. Ground floor windows have chamfered surrounds, crenellations and moulded cornices. A central two-centred arched doorcase contains the house number in a shield and the house name in panels, along with impost blocks. The original four-panelled front door features decorative deep fielded panels. Above the door is a gabled wooden weatherhood on brackets and stuccoed corbels, moulded bargeboards with finials and pendants, and a tiled roof with ridge cresting.

The left-hand extension has a crenellated parapet and a panel between the floors, with a blocked doorcase on the ground floor. The right-hand addition features a single window with a pediment and patera.

A stuccoed wall runs alongside the house, with four gatepiers displaying a trefoil design and stuccoed balustrading with floral motifs. A tall stuccoed pier and wooden gate are located on the left side.

The interior features a plastered ceiling with geometrical motifs in the entrance hall, along with a coloured tiled floor and original four-panelled doors. The drawing room has an elaborate plaster ceiling with a central rose, a deep floral patterned cornice, and other floral designs. It was extended shortly after the house’s construction to display further plasterwork, including a coved ceiling of five bays with floral motifs and a shield displaying a griffin, the motto "Let Brotherly Love Commence," and the tools of the plasterer's trade – a hammer, compasses, and mallet. The drawing room also has a marble fireplace with pilasters, a cast iron firegrate, and tiled surrounds. The dining room features a plastered ceiling rose and a metal fireplace dating from around 1900, with pilasters and a swag design. A half-winder staircase has thin turned balusters and a square newel post with a ball finial, with beaded horizontal panelling to the rear wall. The main bedroom has a ceiling rose with an anthemion and fluted motif, a wooden fireplace with a cast iron insert and an original safe with a wooden exterior and a metal moneybox.

A flight of stairs to the attic has a half-winder staircase with plank balustrading and a turned newel post with an acorn finial. Original four-panelled doors are found throughout the entire house.

Attached to the house is a stuccoed wall with four gatepiers, trefoil-shaped details, and stuccoed balustrading with floral motifs.