Explore County contracting opportunities in goods, services and construction. Use the table below to explore contract opportunities for goods and services.Bid on City Contracts ; RFP: On-Call Mechanical Engineering Service, May 12, 2020, p.m. ; RFP: On-Call Architectural Services, May 12, 2020, p.m. Explore the design process in detail in our ADU Guidebook. Your go-to, in-depth guide to building an ADU in Alameda County, from inspiration to move-in. New Key Construction provides design services, pulls permits, and is a licensed contractor in the state of California. To carry out the Work in accordance with the Contract Documents. 5. Architect shall always have access to the Work. Projects must be completely designed and coordinated before being submitted to DSA for review.