St John the Evangelist's Church, Greenock, is located in Union Street, Greenock

Greenock

Greenock is a town and administrative centre in the Inverclyde council area in United Kingdom, and a former burgh within the historic county of Renfrewshire, located in the west central Lowlands of Scotland...

, Inverclyde

Inverclyde

Inverclyde is one of 32 council areas used for local government in Scotland. Together with the Renfrewshire and East Renfrewshire council areas, Inverclyde forms part of the historic county of Renfrewshire - which current exists as a registration county and lieutenancy area - located in the west...

, Scotland. It is an active Anglican

Anglicanism

Anglicanism is a tradition within Christianity comprising churches with historical connections to the Church of England or similar beliefs, worship and church structures. The word Anglican originates in ecclesia anglicana, a medieval Latin phrase dating to at least 1246 that means the English...

 church in the Scottish Episcopal Church

Scottish Episcopal Church

The Scottish Episcopal Church is a Christian church in Scotland, consisting of seven dioceses. Since the 17th century, it has had an identity distinct from the presbyterian Church of Scotland....

. It has been designated by Historic Scotland

Historic Scotland

Historic Scotland is an executive agency of the Scottish Government, responsible for historic monuments in Scotland.-Role:As its website states:...

 as a Category B listed building. The church was built in 1878, and designed by the Lancaster

Lancaster, Lancashire

Lancaster is the county town of Lancashire, England. It is situated on the River Lune and has a population of 45,952. Lancaster is a constituent settlement of the wider City of Lancaster, local government district which has a population of 133,914 and encompasses several outlying towns, including...

 architects Paley and Austin. The architectural style is Gothic Revival

Gothic Revival architecture

The Gothic Revival is an architectural movement that began in the 1740s in England...

. Its plan consists of a four-bay

Bay (architecture)

A bay is a unit of form in architecture. This unit is defined as the zone between the outer edges of an engaged column, pilaster, or post; or within a window frame, doorframe, or vertical 'bas relief' wall form.-Defining elements:...

 nave

Nave

In Romanesque and Gothic Christian abbey, cathedral basilica and church architecture, the nave is the central approach to the high altar, the main body of the church. "Nave" was probably suggested by the keel shape of its vaulting...

 with a clerestory

Clerestory

Clerestory is an architectural term that historically denoted an upper level of a Roman basilica or of the nave of a Romanesque or Gothic church, the walls of which rise above the rooflines of the lower aisles and are pierced with windows. In modern usage, clerestory refers to any high windows...

, a chancel

Chancel

In church architecture, the chancel is the space around the altar in the sanctuary at the liturgical east end of a traditional Christian church building...

 with a chapel, and a tower at the southeast corner. The tower has a slate

Slate

Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. The result is a foliated rock in which the foliation may not correspond to the original sedimentary layering...

-covered pyramidal roof. Inside the church the arcades

Arcade (architecture)

An arcade is a succession of arches, each counterthrusting the next, supported by columns or piers or a covered walk enclosed by a line of such arches on one or both sides. In warmer or wet climates, exterior arcades provide shelter for pedestrians....

 are carried on alternate octagonal and circular piers

Pier (architecture)

In architecture, a pier is an upright support for a superstructure, such as an arch or bridge. Sections of wall between openings function as piers. The simplest cross section of the pier is square, or rectangular, although other shapes are also common, such as the richly articulated piers of Donato...

.