The latest conceptual designs for a proposed 400-room, dual-hotel development at the former Lane Field will be presented as part of a public workshop planned for Aug. 30 by the Port of San Diego.

It is scheduled for 5:30 to 7 p.m. at the port’s administration building at 3165 Pacific Highway. A port district statement said the gathering will include a presentation by the developer, LPP Lane Field LLC, and break-out sessions for discussion.

The preliminary concept for the $115 million Lane Field development includes a 250-room hotel brand similar to a Hilton Garden Inn, and an extended-stay, 150-room hotel brand similar to a Homewood Suites.

The two hotels would share common elevators but have separate lobbies. An above-ground podium structure would include retail and restaurant space, hotel amenities and approximately 442 parking spaces, with 134 available to the general public.

The project is located on the northern portion of the former Lane Field ballpark at Pacific Highway and West Broadway in downtown San Diego.

Port commissioners recently received the latest concept for the project, and also approved the transfer of ownership from Lane Field San Diego Developers LLC, to a new entity that includes Lankford & Associates, Phelps Development and John Portman & Associates.

The public workshop is the latest in a series related to the proposal. Port approval of the final project design is expected in early 2013, officials said.