how is the architecture of the place?
Its architecture had changed a number of times, all sources mention the "Tabula Valeria", a painting on the exterior of the Curia's western wall.
Curia Hostilia
The Curia Hostilia architecture had changed a number of times, but maintained its original form even after a number of refurbishments. The structure was where all of Rome's early political life centered. It is said that the public was always allowed to stroll into the Curia Hostilia to listen to the senators debate.

Relatively little is known about the Curia Hostilia. One feature of the Curia that is mentioned in almost all sources is the "Tabula Valeria", a painting on the exterior of the Curia's western wall. It depicted the victory of Manius Valerius Maximus Corvinus Messalla over Hiero and the Carthaginians in 263 BC. Pliny says that the painting was the first such picture in Rome.
where did the roman government meet to conduct its business The Curia Hostilia. describe the senate's standards on ethics? Senators could not engage in banking or any form of public contract without legal approval. They could not own a ship that was large enough to participate in foreign commerce without legal approval, and they could not leave Italy without permission from the Senate. what are the standards for the venue? While Senate meetings could take place either inside or outside of the formal boundary of the city (the "pomerium"), no meeting could take place more than a mile outside of the "pomerium". what is the "pomerium"? It was a religious boundary around the city of Rome and cities controlled by Rome. from where did the religious boundary get its name? The term is a classical contraction of the Latin phrase "", literally "beyond the wall". to where is it extended? UNANSWERABLE was the place where the roman government meet to conduct its business destroyed? Yes, by fire.
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Curia Hostilia [SEP] Architecture and layout
There may have been a small shrine to the god Vulcan from the earliest period, a stone altar with a marble stele inscribed with a dedication from a Latin king. An honorary column was also among the tightly packed items. This spot was separated from the rest of the comitium with a low rising concrete fence to keep pedestrians from walking atop it. The Curia Hostilia architecture had changed a number of times, but maintained its original form even after a number of refurbishments. The structure was where all of Rome's early political life centered. It is said that the public was always allowed to stroll into the Curia Hostilia to listen to the senators debate.