The parish church of St Andrew in Chinnor has been in existence since at least 1160CE. This is when the earliest records of the church were made, though the church may have been built on the site of earlier Saxon remains. Much of the current church, which is made from knapped flint and brick and stone, dates from the 13th century including the aisles and the tower. The tower was heightened in the following century and the nave roof and chancel rebuilt. The South porch was also added.
The church was restored in the early 1860s. The church is well known for it's monumental brasses and has one of the largest collections in the country plus one of the oldest wooden screens.