Santo Stefano alla Lizza was a church belonging to the Roman Catholic Archdiocese of Siena-Colle di Val d'Elsa-Montalcino. Deconsecrated, it is used today as a meeting room and concerts.
A Romanesque style building documented to exist since the 12th century, was reconstructed in 1671-1675. The façade is crowned with a tympanum with an oculus, and prececed by a flight of stairs in brick. 
The interior once housed a Madonna with child and Saints by Andrea Vanni and a complete predella by Giovanni di Paolo (six scenes from the Life of St Stephen with a central Crucifixion with Saints Jerome and Bernard), now in the Baptistery of Siena. 
On the right altar was a Visitation by Rutilio Manetti (also in Baptistery), the apse has a fragmentary Deposition by Antonio Buonfigli.