Advanced Design Construction Inc
Valencia, Los Angeles County, CA
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About
Advanced Design Construction (ADC) is a full-service Southern California design-build contractor based in Valencia, serving the greater Santa Clarita Valley and surrounding communities. A California corporation licensed by the CSLB since 1992, the company brings more than two decades of hands-on experience to residential exterior and interior projects. Led by owner John Kolt — a three-time award winner — ADC personally meets with every client to translate their vision into a finished design, then manages the entire project from concept to completion. The team handles Fire Department submittals, HOA submittals, and permitting so homeowners are spared the hassle of coordinating multiple subcontractors. Services span entryways, kitchen and bath remodeling, outdoor kitchens and living spaces, patios and enclosures, pavers and turf, swimming pools, and fully custom designs. ADC pairs artistic vision with meticulous, detail-driven craftsmanship, guided by the philosophy that "quality is an investment." Skilled in-house craftsmen carry each design through from start to finish, and multiple financing options are available. The firm's portfolio and client testimonials reflect a reputation for professionalism, integrity, and work that homeowners across Valencia, West Hills, and La Crescenta enthusiastically recommend.
Working in Valencia
Climate & hardiness zone
Valencia sits in USDA Plant Hardiness Zone 10a, with minimum temperatures of 30–35°F. Zone 10a sits at the edge of frost risk — rare but possible, meaning irrigation systems need winterization readiness even if they rarely need it. The mild climate supports an enormous range of plant material, but summer fog patterns, coastal wind exposure, and microclimate variation within a single neighborhood can dramatically change what thrives. Local experience matters here more than in more uniform climates.
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