One of Napa's premier custom home opportunities. Build your dream estate on this private approximately 0.30-acre flag lot in an established neighborhood just minutes from downtown Napa, world-class wineries, restaurants, shopping, schools, and parks. The current owner has invested significant time and expense preparing the property for development. Available to the buyer are architectural plans for an impressive approximately 2,697 sq. ft. custom residence with a 634 sq. ft. detached ADU, expansive three-car garage with second-story storage, covered lanai, and thoughtfully designed indoor-outdoor living spaces. The proposed residence features an open great room with vaulted ceilings, generous primary suite, guest suite, and well-separated secondary bedrooms, creating an exceptional floor plan for both everyday living and entertaining. Pre-development work includes architectural plans, geotechnical engineering, and structural engineering, representing substantial value and potentially saving a future owner considerable time in the planning process. Whether you're looking to build your forever home, create a multi-generational property with an ADU, or invest in one of Napa's most desirable residential markets, 23 Chase Lane offers an outstanding opportunity to bring your vision to life.