WaveCrest Enterprises has built custom single-family residences and multifamily resort properties across Encinitas's Old Encinitas district since 1978. The firm's design-build portfolio includes ground-up coastal estates in Rancho Santa Fe and Cardiff-by-the-Sea, with interior finish packages often coordinated through firms like Blue Poppy Design for material and fixture selection. In 2013, the company launched Alliance Green Builders as an in-house division focused on high-performance building-science principles, including advanced air-sealing, thermal-bridging mitigation, and energy-recovery ventilation. Full-gut remodels encompass structural framing modifications, electrical service upgrades, and finish work that includes engineered-hardwood and luxury-vinyl installations sourced through suppliers like CALI Floors. Highest-complexity projects involve complete structural rebuilds with steel moment-frame engineering, shotcrete foundation underpinning, and Title 24 energy-compliance modeling for residences exceeding 5,000 square feet.