40 John Street, Omagh, Co. Tyrone, BT78 1DN

An attached three-bay two-storey stone former sexton's house with Picturesque detailing, built in 1873. The building forms part of a distinct architectural group with Trinity Presbyterian Church and the adjoining Church Hall. The house was formerly internally connected to the Church Hall, with its upper right bay serving as a Sunday School room accessed through a now-blocked doorway. Although alterations have been made, the house retains much of its original character, including its Picturesque detailing and fine stonework.

The building is L-plan in form, facing north, with a lower return to the rear. It is constructed of squared-and-tooled undressed basalt with dressed sandstone quoins. The roof is pitched natural slate with blue and black clay ridge tiles and red brick chimneys. The replacement gutters are half-round uPVC.

The principal north elevation is symmetrical with a central entrance flanked by a single window on each floor. Above the entrance is a blind sandstone trefoil. The first-floor windows feature wall-head gablets with perforated painted timber bargeboards. The windows throughout are bipartite depressed gothic painted timber sashes with 1/1 glazing and dressed sandstone surrounds. The entrance door is a segmental arch-headed replacement timber door set in a dressed sandstone surround with Gibbs blocking; modern metal letters are affixed above.

The east elevation is largely blank except for a single square-headed painted timber 1/1 sash with a sandstone lintel at the ground floor left end. The rear south elevation has roughcast walling with single square-headed painted timber 2/2 sashes to each floor, and the first-floor window is topped by a gablet. The return gable on the left is abutted by a boiler projection and features a single square-headed timber casement to the first floor left end. A modern boiler projection of no architectural interest is attached to the right end. The west elevation is entirely abutted by the adjoining building.

The building is set at roadside on a low-lying site, enclosed by a high roughcast-rendered boundary wall that encloses a rear concrete-paved patio. It abuts Trinity Presbyterian Church Hall and stands to the east of Trinity Presbyterian Church.

Historically, the site was first occupied as a house under part in the early 1860s, valued at £2 and leased from the Presbyterian Meeting House Committee. The building was rebuilt in 1873 as it was in the course of removal due to widening of land for the railway. The valuation was increased to £3 10 shillings in 1873. The first recorded occupier in Valuation Revisions was William M. Donnell; later occupiers included James Nixon from 1898 and Armstrong from 1907. According to the current Clerk of Sessions of Trinity Presbyterian Church, the right bay of the first floor formerly served as a Sunday School room, accessed through a doorway from a now-removed stair and gallery in Trinity Presbyterian Church Hall. The gallery was removed and the connecting door blocked around 1957 when an extension to the church hall was built.