51 King Street, Perth

51 King Street in Perth is a pair of semi-detached houses built around 1835. They form a 2-storey, 4-bay block with central porches supported by paired Doric columns. The houses are currently divided as of 2009 and feature a 2-storey wing at the rear, creating a T-plan layout. The exterior is made of painted squared and coursed, tooled sandstone with smooth margins, complemented by a base course, band course, and eaves cornice.

The windows are predominantly 12-pane timber sash and case, with one plate glass timber window located on the ground floor to the right. The roof is piended and covered with grey slates, and there are coped wallhead and gablehead stacks.

Inside, as seen in 2009, there have been some alterations. House number 49 features a staircase with iron balusters and a timber handrail, along with some decorative plasterwork. The hallways include part-glazed timber doors and semicircular fanlights.

To the west, there is a low, coped rubble boundary wall with a pair of pedestrian entrance openings and a single vehicular opening.