South Warnborough is located 4.5km. S of Odiham in NE Hampshire. St Andrew’s church is faced in a mixture of flint and roughcast, and roofed with red tiles. The chancel is essentially 13thc. in date, but the nave is of the 12thc., with a carved N doorway and a Norman window at the W end of the S wall. A bell turret rises over the W bay of the nave.
In 1869-70 G. E. Street added a N porch and a S aisle with a three-bay arcade. The aisle had a vestry and an organ chamber at its E end, overlapping the chancel. Around 2008-09, Street’s vestry and organ chamber was converted into a chapel, accessed from the chancel, and a smaller vestry was provided under a catslide roof to its E. The arcade was screened off and the aisle divided into a kitchen and a Heritage Room. A contemporary timber structure on the S side of the aisle contains a cloakroom and an entrance to the kitchen.