The Southend part of the village has its own manor house. It is an early 17th-century double-pile Jacobean building with a front of seven bays. It is a Grade II* listed building.
Parish church
The oldest part of the parish church of Saint Mary includes the tower, built towards the end of the 12th century in the transitional style between Norman and Early English. The chancel is pure Early English and was built or rebuilt in about 1300. St Mary's has Decorated Gothicnorth and south aisles, which were added in the 14th century and have four-bay arcades. St Mary's was restored in 1849 under the direction of the Gothic Revival architectJoseph Clarke. Clarke's alterations included rebuilding the chancel arch to match the north arcade, adding gargoyles to the south aisle and much remodelling of the north aisle. St Mary's is a Grade II* listed building. Inside, next to the entrance door, is a memorial to Garsington's most illustrious inhabitant, Ottoline Morrell, by Eric Gill. The west tower has a ring of six bells. Richard Keene of Woodstock cast the treble bell in 1696. Abraham IIRudhall of Gloucester cast the second bell in 1720. Henry III Bagley of Chacombe, Northamptonshire cast the third bell in 1733, presumably at his then foundry in Witney. John Rudhall of Gloucester cast the tenor bell in 1788. W&J Taylor cast the fifth bell in 1825, presumably at their then foundry in Oxford. The fourth bell was cast in 1732 but Mears and Stainbank of the Whitechapel Bell Foundry recast it in 1929. The bells were restored in 2013. Thomas Thwaites of Clerkenwell in London built the turret clock for the tower in 1796 at a cost of £172 4s 0d. It is a 30-hour clock and it strikes the hours on the tenor bell. Its dials still have only an hour hand. St Mary's parish is now part of the Benefice of Garsington, Cuddesdon and Horspath. The wedding scene in the 2006 filmAmazing Grace was filmed at the church.
School
A parish school was built in Garsington in 1840. It was reorganised as a junior school in 1923. It now occupies more modern premises and is a Church of England primary school.
Village hall
The village hall was built in 1911 and given to the village by the lord of the manor, Philip Morrell. For most of the 20th century it served the needs of the villagers and a number of small improvements were made over the years. It was renovated to bring it up to modern day standards. The building retains its original appearance as well as adding modern-day facilities.
Amenities
Garsington has a public house: the Three Horseshoes. There were two other public houses: the Plough has been converted into a private house; and the Red Lion is in the process of conversion. There are also a hairdressing salon, a garden centre, dog kennels and a cattery. Garsington Sports and Social Club is in Denton Lane. It has two men's football teams that play in the Oxfordshire Senior Football League and two youth teams that play in the Oxford Mail Youth League Garsington Cricket Club plays in the Oxfordshire Cricket Association League Division Five. The Club also has teams that compete in local darts and Aunt Sally leagues. The Garsington Society seeks to expand the knowledge of Garsington and its surrounding areas historically and geographically with talks held from time to time. The Society holds an annual barn dance. Garsington has a Women's Institute.