Mon-Sat 10AM-6PM, Sun 12PM-5PM Downtown St. Petersburg Living - ONE St. Petersburg! Soaring to new heights in the heart of downtown, One St. Petersburg introduces a bold new vision for contemporary urban living. One city block. 41 stories. 253 luxury condominium residences. 174 hotel rooms. A new destination for shopping, dining and more. An iconic new address - with endless views and infinite possibilities in every direction.