It was designed by James Watts and built by Watts from 1880 to 1890 .
Prospect Post Office is a heritage - listed former post office and shop at 23 Tarlington Place , Prospect , City of Blacktown , New South Wales , Australia .
Prospect Post Office was designed by James Watts and built by Watts from 1880 to 1890 .
Prospect Post Office is a heritage - listed former post office and shop at 23 Tarlington Place , Prospect , City of Blacktown , New South Wales , Australia .