Soaring 450 feet, the 42-story Art House condominium tower in downtown St. Pete has now reached vertical completion.

The topping off of Art House marks a key milestone in the construction of the new 244-unit luxury condo tower at 235 1st Avenue South.

South Florida-based developer Kolter Urban, which has developed two other condo projects in downtown St. Pete, the 41-story ONE St. Petersburg and the recently completed 35-story Saltaire, will hold a private celebration on Thursday evening commemorating the construction milestone.