No. 3 and Attached Railings and Vaults

No. 3 Camden Crescent is a house, dating from approximately 1788, with alterations from the 19th and 20th centuries. It was designed by John Eveleigh and is one of five houses forming the left wing of Camden Crescent. The front is constructed of limestone ashlar, while the rear uses ashlar and rubble. The roof is a mansard style with Welsh slate to the front and artificial slate to the rear, punctuated by two ashlar stacks rising from a coped party wall.

The house has three storeys, an attic, and a basement, with a three-window front. The first floor features three nine-over-nine sash windows with horns, set within plain reveals and stone sills. The second floor has three six-over-six sash windows, also with horns, plain reveals, and stone sills. The ground floor has two six-over-six sash windows to the left, matching the upper floors, and a six-panel door to the right. The door is set within a pedimented Doric doorcase, with one step down to a pennant paved crossover that includes a cast iron footscraper. The basement has two six-over-six sash windows and a 20th-century glazed door within the crossover, alongside 20th-century area steps and a single window to the vaults. The attic is lit by one double and one single dormer window, each with six-over-six sash windows. Architectural details include a band course over the ground floor, a modillion eaves cornice, and a coped parapet. A lead hopperhead and downpipe, shared with No. 4 Camden Crescent, is attached to the right. The rear elevation has six-over-six sash windows, a single-storey ashlar extension, a large 20th-century dormer, and a lead hopperhead to the eaves.

The interior, inspected in 1972, retains many original features. Attached wrought iron railings and a gate, with shaped heads on cement-coated bases, complement the building.