Plain tile roof.
West tower: C15.
C15 three-light traceried west window in casement-moulded architrave with hoodmould.
Archit- rave, casement-moulded and square-topped, with hoodmould, and traces of carved spandrels.
5 similar 2-light south windows and similar C15 traceried 3-light east window.
C15 two-light traceried east window.
Interior: Structure: 4-bay C13 nave arcade of circular columns with bell capitals and bases and pointed arches of 2 plain-chamfered orders.
South arcade terminates on crocketted corbels with carved heads.
2-bay C14 chancel arcade with one north and one south column, both with moulded capitals and bases, but that to north earlier
Moulded C15 tower arch incorporating attached columns with moulded capitals and bases.
Chancel roof largely C19 with 2 crown-posts on medieval tie-beams.
7 plain tie-beams, 5 of which have central bosses, that to east carved with coat of arms of John Copuldike (circa temp. Richard II) Fittings and decorations:Font of dressed stone, square, on square stone base with moulded plinth up 2 stone steps from south, set against west pier of north arcade.
Wall painting: of a "Great Ship" of circa 1500 in red ochre on north wall of north aisle.
TQ9928 : Snargate, St. Dunstan's Church: Early c16th wall painting of 'The Great Ship'
Monuments: table tomb in north-east bay of chancel arcade with moulded plinth, corniced lid, pointed quatrefoils to sides and indent of a brass on lid.