The building served as an outbuilding to the William S. Ladd mansion, once located across Broadway on the block now occupied by the The Oregonian's headquarters. Since its decommissioning as a private residential structure, it has been used as offices and retailing space.
The future of the building was cast into doubt when the neighboring First Christian Church announced plans to redevelop the entire block. The congregation had bought the Ladd Carriage House in 1971, and sought to expand parking for its members. As part of the redevelopment, a condo tower, Ladd Tower, would be built above a parking garage. A demolition permit had been secured for the lot, but never used. Nevertheless, this raised alarm bells in the preservationist community and a grass-roots campaign sprang into action to either save or move the old building. A compromise was agreed upon where the Ladd Carriage House would be moved temporarily while a new garage would be dug out, then the building would be moved back onto the lot. The plans for the condo tower were scaled back so that the tower's footprint only took up half the block, not three-quarters of it.
After ground was broken on Ladd Tower, the Ladd Carriage House began its move at 7 a.m., June 16 2007. It is currently located on a parking lot at the corner of 10th and Columbia Streets. It is expected to be moved back to its original location by October 2008.