Description from record TR 34 SW 12:
[TR 32224472] Church [NAT]. (1) The Church of St. Martin, Guston, is Norman, restored in the 19th century. (2) In normal use. (3) [TR 32224472] St. Martin of Tours Church (C of E) [NAT]. (4) Parish Church of St. Martin of Tours. Grade II. 12th century, restored late 19th century. Flint with tiled roof. (5)(6)

The following text is from the original listed building designation:
TR 34 SW GUSTON THE STREET north side
5/19 Church of St. Martin of Tours 22.8.66 GV II*
Parish church. C12, restored late C19. Flint with plain tiled roof. Chancel and nave with north porch, south vestry and western bell turret. Large central triple offset buttress on west wall, with timber and shingled turret and spirelet over C14 south vestry. North porch with simple chamfered outer arch and C12 north doorway with wave and roll mould on attached shafts with 1 scalloped capital and that to west with overlapping rings. C19 fenestration throughout except original C12 triple round headed lancet east window. Interior reveals to windows. C12 tie beam roof, the area above the collar beams ceiled in. Chancel stepped in with C19 trussed rafter roof. Fittings with C19 floriate brass brackets to alter rail light 3 bay chancel screen without tracery, pulpit, font and benches, that at south west with attached poor box. Glass in nave to Francis William Prescott d.1919, now very dark blue, purples and orange. The broad composition contrasting with the more usual C19 glass elsewhere in the church. (See BOE Kent II 1983, 339).
Listing NGR: TR3242344641 (8)

<1> OS 6" 1961 (OS Card Reference). SKE48369.

<2> MHLG (2045/11/A Sep 1960) 12 (OS Card Reference). SKE46972.

<3> F1 ASP 11.05.64 (OS Card Reference). SKE42041.

<4> OS 1/2500 1982 (OS Card Reference). SKE48130.

<5> DOE (HHR) Dist of Dover 1987 7 (OS Card Reference). SKE40261.

<6> Bldgs of Eng NE and E Kent 1983 339 (J Newman) (OS Card Reference). SKE37807.

<7> Field report for monument TR 34 SW 12 - May, 1964 (Bibliographic reference). SKE5961.

<8> English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.