Lawrence city commissioners at their Tuesday evening meeting will consider changing a downtown parking lot to accommodate plans for an architectural firm to move its headquarters downtown.

Commissioners will consider converting the two-hour lot in the 1000 block of Vermont Street into a 10-hour, metered lot. Officials with Lawrence-based Treanor Architects have asked for the change. The architecture firm is planning a $2 million project to convert the former Strong’s Office Supply building at 1040 Vt., which is adjacent to the parking lot, into an office building.

None of the spaces in the city lot would be reserved for the Treanor project. Instead, Treanor would purchase 50 parking passes from the city that would allow employees of the firm to take spots on a first-come, first-serve basis. Treanor is asking the city to provide the company a 10-year guarantee on how much the parking passes will cost. He’s proposing the current rate of $195 per year, per pass.

Commissioners meet at 6:35 p.m. Tuesday at City Hall.