The Church of the Holy Trinity in the Buckinghamshire village of Seer Green was built in 1846, though did not become a parish church in it's own right until 1866 when the Parish of Seer Green was created. The church is a small, simple building with a nave, chancel and a bellcote in the Early English Gothic style with lancet windows. The church was built out of knapped flint with a stone dressing.
Vestries were added in 1960 in a matching style.
