A simple and unpretentious brick-built cruciform Gothic church, of nave and apse, one of only two buildings attributed to little-known architect John George Garden Brown and built in 1879, shortly before his early death.

Its door sits within a shallow gabled porch, the line echoing the line of the gable above. There are four lancet windows beneath a niche above containing a white marble statue of Christ.

The calm interior contains a pine bench style pews facing the wooden altar beneath the open timber beamed roof. The church is also used as a venue during the famous annual Wigtown Book Festival.