The Nevada County Bost Cottage Addition project involves the construction of a new ADA restroom, demolition, excavation, concrete, electrical, plumbing, HVAC, insulation, drywall, siding, paint, doors, windows, flooring, roofing, deck, and site accessibility improvements. The project requires a B contractor's license and various specialty licenses. The engineer's estimate for the project is $308,729. The bids from various vendors are listed, with the lowest bid being $366,560 from Kingsley Development Group.