JY Design Interiors, an Encinitas firm founded in 2015 along Coast Highway 101 in Old Encinitas, delivers residential and commercial interior design from concept boards through installation day. The studio's kitchen and bathroom remodels involve countertop and backsplash sourcing through natural-stone specialists such as Amazon Stone Boutique, selecting slab materials on-site for vein-matched layouts. Editorial features in Elle Decor, Vanity Fair, and San Diego Home & Garden reflect a portfolio spanning Del Mar estates, Rancho Santa Fe properties, and Encinitas coastal residences. Full-service scopes cover wallpaper, custom drapery, plumbing fixtures, tile, and furniture procurement, with the team managing contractor timelines and punch-list closeouts. Second-story addition projects require new roof-line integration, a scope that coordinates waterproofing and flashing details with Rancho Roofing before interior finish work can proceed. The most technically complex residential commissions involve full structural reconfigurations with new staircases, updated HVAC zoning, and seismic-compliant moment-frame steel connections.