[2] The church stands to the north of the village, in the grounds of Thornton Hall (now a girls' boarding school), to the east of the River Ouse, some 4 miles (6 km) northeast of Buckingham.

In 1850 a communion rail was erected at the east end, making the eastern bay into a sanctuary.

Its plan consists of a four-bay nave, north and south aisles, and a west tower.

On the summit of the tower is a battlemented parapet with gargoyles, and a wrought iron weathervane shaped like a key.

The north and south walls of the aisles contain three two-light Decorated windows, and at the summits are battlemented parapets.

[1] Inside the church are north and south four-bay arcades carried on octagonal piers.

One of these, at the east end of the south aisle, is larger than the others and was occupied by the lord of the manor and his family.

On the front of the gallery is a wooden carving of the royal arms made from three types of wood.

[5][10] The top of the tomb is covered by a large brass inscribed with the figures of a man in armour, three wives, and 14 children, all framed by a canopy with four gables.