Holding CSLB license #982293 in the B (General Building) classification and responsible for over 3,000 multifamily units and more than $50 million in permitted work across San Diego, Highland Construction Services runs commercial, civic, and institutional projects from a Park Boulevard office in Hillcrest. Sea water wet lab construction for marine science clients requires a specialty architect to produce the lab-planning drawings, a niche filled in San Diego by Research Facilities Design, whose corrosion-resistant plumbing specifications and epoxy floor callouts the builder assembles in the field. Civic project experience covers police headquarters buildings, civic centers, administrative headquarters, and educational facilities where the construction contract carries prevailing wage, DIR certified payroll, and SWPPP compliance from day one. Envelope quality control on mid-rise and high-rise multifamily podium buildings needs third-party verification to catch concealed moisture behind stucco and window flashing before drywall locks it in, which is the inspection scope Precision Mold Testing delivers on San Diego multifamily projects. Concrete-structured podium construction and mid-rise infill are the company's multifamily specialty, with experience delivering workforce housing, income-restricted projects, and market-rate communities on urban sites where staging and crane picks have to be choreographed around live streets. Ground-up sea water wet labs, where the plumbing system has to pump, filter, chill, and sterilize live ocean water through a research building without contaminating specimens, is the most technical civil and MEP coordination the firm takes on.