DAHLIN Architecture | Planning | Interiors in downtown San Diego has anchored its Southern California practice on West Broadway since relocating from the Cedros Avenue Design District in Solana Beach, continuing a San Diego presence that began with the firm's first local office in the Gaslamp Quarter in 1991. The firm integrates master planning, architecture, and interior design under one contract—a multidisciplinary scope applied to urban-infill housing, deed-restricted housing entitlements, and senior-living communities that complements the institutional and healthcare focus of downtown neighbor SmithGroup on West Broadway. Founded in 1976, the practice operates from 10 offices across the United States and China with more than 190 professionals, though the San Diego studio focuses specifically on Southern California's mid-rise and high-rise housing market. Staff members hold WELL Accreditation and C.A.S.H. (Coalition for Adequate School Housing) certifications, credentials that inform the firm's healthcare-clinic interiors and K-12 campus designs in addition to the residential core. DAHLIN's residential designs move through the city's permitting process alongside the property-condition assessments and pre-sale inspections provided by IN-DEPTH Inspections and Real Estate Services Co., connecting architect-driven new construction with the due-diligence layer that protects buyers and lenders on completed units. The firm's most technically complex engagements involve master-planned deed-restricted housing communities exceeding 200 units with integrated senior-living components, density-bonus entitlements under California housing law, and interior-design packages covering model units through full buildout.