This house originally belonged to Dr Gio Batta Piotto and was taken over by the Order's Treasury for public purposes in 1665. In 1721, the Treasury exchanged this building with the Univesita' (the local administrative council). Today, this building houses the Public Registry.

This is one of the few non-ecclesiastical buildings designed by Romano Carapecchia. The building was intended as the administrative quarters of the Universita'.

This building then known as the Municipal Palace was reconstructed and embellished by Grand Master Zondadari, an event commemorated by a tablet above the front door.

The lower part of the façade on Triq il-Merkanti is composed of three bays.

The side bays have square-headed doors of shops (botteghe) with oval windows above them set under a blind arch with pronounced keystone. The main entrance has an arched doorway framed between Doric columns elevated on bases supporting an open balcony.

The upper level consists of a series of rectangular windows with ornate, omega shaped pediments with intricate carved decorations. A highly decorated cornice crowns the roof level with projecting consoles alternated by roundels.

At the center above the balcony door is a marble inscription within a rectangular frame flanked by two escutcheons. Above this is a unique composition consisting of a wide open drape with side sways within which is a monumental sculpture representing the Royal cipher of the British monarchy.

Mepa scheduled the Banca Giuratale as a Grade 1 national monument as per Government Notice number 276/08 in the Government Gazette dated March 28.