Two Homes with 2,257 total square footage. One Exceptional & Rare Opportunity to own a piece of Santa Clara History in the highly sought after Old Quad neighborhood! This beautifully preserved Queen Anne Cottage combines timeless character with modern updates & the significant tax advantages of the Mills Act. Main residence offers 3 bedrooms, 1.5 baths, 1,324 sq ft, high ceilings, refinished hardwood floors, spacious living room, dining area, renovated kitchen, laundry area & an enclosed sun porch. A spacious basement with exterior access, along with a dedicated rear storage room, offers exceptional storage & added versatility. Adding exceptional value is the permitted 2025 ADU, offering approximately 933 square feet with 2 bedrooms, 1.5 bathrooms, private entrance, separate address, separate utilities, & also offers A/C, laundry area, fenced yard, & fully paid solar. Ideal for multigenerational living, guests, or rental income potential. Conveniently located near Santa Clara University, Santana Row, Westfield Valley Fair, Downtown Santa Clara, Kaiser Permanente, Levi's Stadium, San Jose International Airport, close to major employers, public transit & commute routes. Enjoy nearby parks, schools, the Saturday Farmers Market & the benefits of Santa Clara's own Silicon Valley Power