Amongst the buildings which surround the piazza, other than the church which gives it its name, stands the Palazzo Spineda, typical example of a small renaissance aristocratic palace: a symmetrical structure with characteristic tri-partite windows which opens into a central salon. It was built towards the middle of the 16th century and renovated in the 18th century. Now it is the central seat of the Unicredit Bank of Treviso.
Internally, it is elegantly furnisched, and still  houses some fresco work: along the walls of the central room, frescoes by Gaspare Diziani, 1748; and in a room on the piano nobile, frescoes painted in 1790 by Basilio Lasinio, inspired by Veronese's work in Villa Barbaro, Maser.
The fountain found in front of Palazzo Spineda originally adorned the palace's garden; it now appears as an isolated element.

PIAZZA RINALDI

This piazza, once used for a vegetable market, is named after one of the most illustrious families of Treviso.
The Palazzo, built in the second half of the 15th century, which housed the Rinaldi family still exists though much altered in the following century.
On the first floor, above the tri-partite window with its round arches and balcony, is the 15th sentury crest of the Rinaldi family. On the facade facing the piazza is found a small loggia with an original portico, oriental in style, which housed fragments of frescoes depicting triumphal processions.
In the piazza, there are another two lordly abodes of the Rinaldi: that to the west, has a splendid renaissance, quadruple lancet window, the other, now the municipal offices, has a decidedly 16th century exterior, but internally the salon is completely frescoed in the fake tapestries and floral ornaments of the 13th century.
Both these palazzi owe their recent restorations to the ex Saving Bank's administration and the Town Council of Treviso. Over the centuries, they had been repeatedly altered and damaged, due to war and human intervention.
Other interesting buildings facing Piazza Rinaldi include the ex Osteria alla Colonna of the 17th century which takes its name from the high column in the centre of the open ground floor, fully restored in 1984. At the beginning of this century, it was the meeting place of several major italin artists such as Arturo Martini, Gino Rossi and Giovanni Comisso.