Church of St Mary

The Church of St Mary is a Grade II listed building, constructed in 1871 by architect R Brandon for A Hornby of the Hook Estate. It features rockfaced rubble stone with ashlar dressings and a plain tile roof with ridge tiles. The church has a four-bay aisled nave with a clerestorey, north and south porches, and a bellcote on the west gable. The chancel is lower and has two bays, an apse, a north vestry, and a south organ chamber.

Designed in Gothic style, the nave windows and paired one-light clerestorey windows are in Decorated style, while the aisles are in Perpendicular style, and the apse is in Early English style. Notable architectural details include a chamfered plinth, offset buttresses, a continuous roll-moulded sill band, and hoodmoulds over the east end windows. The board doors are fitted with decorative iron hinges. The bellcote features a full-height ashlar buttress and is octagonal in plan, with lancet openings, a crocketted cornice, and a tapering stone roof topped with a scrolled finial and weathervane. There are circular eaves stacks on either side of the west gable.

Inside, the church has pointed-arched nave arcades supported by circular columns. Corbelled colonnettes hold arch-braced roof trusses, which are adorned with decorative bosses and angels on the intermediate trusses. The aisle roofs are simpler, featuring sexfoils in the spandrels. The roll-moulded chancel arch is supported by colonnettes on leafy corbels, with slender early English-style columns supporting the ribs of a decorative wooden roof. The chancel has an encaustic tile floor and sedilia. In the nave, there is a contemporary font and a pulpit, the latter made of wood on a stone base with brass apostolic panels.

The church is the most significant structure in a group that includes a school and a schoolhouse, which Hornby built to serve the villages of Hook and Warsash.