Built in the form of a cross, it consists of a two aisle nave, a clerestory, a chancel, a porch, and a chantry chapel.
The vicarage house and garden are on a gradual slope on the south side of the churchyard.
There are, however, some remains which indicate that there was a stone church on this site before the end of the 11th or in the early part of the 12th century consisting of a nave without aisles, a tower and a chancel.
There are two brackets at different levels on the north side of the aisle's east window with carvings of a female head.
[4] There is no doubt that Dunstanburgh Castle formed a quarry for stones with which an earlier chancel was built.
[clarification needed] Above the present modern chancel arch is a pointed opening, now filled in, which may have been a window.
The chancel, considered modern in the 1800s, features windows containing excellent specimens of stained glass by Charles Eamer Kempe,[8] in memory of the late Sir George Grey of Fallodon.
[4] The church has undergone multiple restorations, including one by John Dobson of Newcastle in 1850, when the Falloden aisle was built; and another by F. R. Wilson in 1867 when the chancel was rebuilt.
There is no certain proof that this change took place, but the present modern chancel arch is supported upon two capitals that are of the Transitional style.
The next change that took place was the addition of aisles to the nave, and the insertion of a three bay arcade on either side in the old walls about the year 1200.
[4] Into the walls of the more modern vestry, several ancient stones were discovered during renovation of the old chancel which was of the Georgian period.
The garden is found to the south and was laid out in 1828 during the time of George Grimes when other additions were made to the house by Dobson of Newcastle.