The Grade I listed building is chiefly remarkable for the consistency of its Perpendicular Gothic architectural style and its unusually large size for a parish church.

[1] St. Nicolas Church is dedicated to the eponymous Bishop of Myra in the fourth century.

In Fuller's History of the Worthies of England, published in 1663, it is stated: "John Winchcombe, commonly called Jack of Newbury... built the church of Newbury, from the pulpit westward to the tower inclusively, and died about the year 1520".

The tenor bell, which weighs 21-2-1 (1093 kg), is in the note of D.[4] The stained glass windows date from the Victorian restoration by Henry Woodyer as do the external crenellations along the roof-line, and the pinnacles and turrets of the tower.

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