Flowerhill Parish Church, 84 Johnston Street, Airdrie

The Manse of Flowerhill Parish Church, located at 84 Johnston Street in Airdrie, was designed by Matthew Forsyth and built between 1872 and 1875. This Italianate church features a broadly gabled, rectangular plan with a campanile at the southwest corner. It is constructed of squared and snecked sandstone, with a base course and a continuous string course at gallery height. The church has semicircular-arched openings.

On the principal elevation, there are three bays with stop-hoodmoulded openings. Clasped buttresses and small windows flank the central door, while a large geometric traceried rose window is prominently displayed. The gable head jetties out and features three blind arrow slits above, topped with a stone cross finial at the apex.

The rear elevation is obscured by the adjoining manse and church hall. The south side elevation consists of seven bays with regular fenestration, including small square windows at ground level and bipartite geometric traceried gallery windows. Stone steps lead to a canopied, square-headed door in the outer bay to the right, with a small rectangular window below a four-light window. The outer left bay features a projecting four-stage, square-plan bell tower with stone steps leading to a canopied, square-headed door. This tower includes a small canopied square window on the second stage, a small bipartite window on the third stage, and a plain entablature above with three arrow slits. An inscription on the architrave reads, "BEGUN APRIL 1872 FINISHED JUNE 1875." The fourth stage has a blind arcade and an open Venetian window at the center, flanked by paired oculi. The tower is topped with a projecting cornice, a tiled pyramidal roof, and a cast-iron cross finial.

The north side elevation mirrors that of the south. The church features square-pane leaded windows, grey slates, and cast-iron rainwater goods. The interior is a plain galleried space that was redecorated in 1900.

The manse is a two-storey, four-bay, L-plan building with a gabled south-facing facade. It is also made of squared and snecked sandstone. The left side has an advanced gabled double bay, while the center features a two-storey advanced canted window. The central door is accompanied by a small window above it, and the right bay has a three-light stone mullioned window with a canopied bipartite window above. The side and rear elevations have irregular fenestration, with the manse abutting the church to the east. It is covered with grey slates and pantile ridging, and has cast-iron rainwater goods.

The church hall is a three-bay, rectangular-plan gabled structure that abuts the rear elevation of the church. It is built of squared and snecked sandstone and features glazed oculi.