| One St. Petersburg | |
| Alternate Names: | One |
| Status: | Completed |
| Architectural Style: | Modern |
| Location: | Downtown |
| Address: | 100 1st Avenue North |
| Location City: | St. Petersburg, Florida |
| Location Country: | United States |
| Coordinates: | 27.7711°N -82.6342°W |
| Groundbreaking Date: | November 11, 2015[1] [2] |
| Start Date: | November 17, 2015 |
| Est Completion: | 2019 |
| Inauguration Date: | 2019 |
| Cost: | US$120 million |
| Grounds Area: | 2.2 acres |
| Developer: | Kolter Group |
| Known For: | Tallest Building in Saint Petersburg, Florida and Tallest Building in Pinellas County, Florida |
| Website: | One St. Petersburg |
| References: | [3] [4] |
One St. Petersburg is a 41-story high rise condominium located in the city of St. Petersburg, Florida, United States. Standing 450feet tall, it is the tallest building in St. Petersburg and Pinellas County. The high rise contains 253 condominium rooms that range from 1,400 to 2,500 square feet. The building's second high rise includes a hotel across the lot with 174 rooms, 13 stories high. The ground level of the building contains retail space.[5] Construction began on November 16, 2015, and was completed in 2019, after a delay from the original planned date of 2018.