It was built by the architect who restored Llandaff Cathedral
The Church in Wales is inviting offers from potential developers after putting its ministerial training college in Cardiff up for sale.
The sale of St Michael's College in Llandaff village, an expensive city suburb, includes the college building, built in the 1880s, and three cottages overlooking the college lawn.
Trustees of the college said the sale of the 2.8 acre site depends on them finding another location for theological training.
Hundreds of Church in Wales priests have been taught there, along with Methodist and Church of England ministers.
The trustees said the sale, "comes as the church continues to explore new theological training options stemming from new patterns of mission and ministry."
The college, originally established in 1907, comprises a series of buildings.
The college building itself was built in the 1880s by the architect John Pritchard who was also responsible for the restoration of Llandaff Cathedral.
With its circular Turret tower, Oriel windows and conical roof it is a building with considerable character.
Other buildings within the site include three 1920s built cottages which overlook the college lawn, the principal's lodge, and a more recently constructed accommodation block and the chapel - built in the late 1950s to a design by George Pace.
Michael Rees, from estate agents Chesterton, said: "This prestigious site offers significant development potential in a much sought after area of the Welsh capital city.
"The site would appear to offer particularly attractive residential possibilities."