3025 Old Post Ln, Auburn, CA 95603

FIVE ACRES ON AUBURN'S MOUNT VERNON WINE TRAIL — EXTENSIVE PRE-DEVELOPMENT WORK COMPLETED! Discover an exceptional opportunity to create a luxury estate in one of Placer County's most picturesque foothill settings. This approximately five-acre property features mature oak trees, a seasonal stream, and the tranquility of country living with convenient access to Auburn and surrounding communities. Unlike typical vacant land offerings, this property benefits from substantial engineering, infrastructure planning, and site preparation already completed, providing a remarkable head start toward creating a custom estate. Professionally engineered plans have been submitted to Placer County for an approximately 4,700-square-foot residence featuring insulated concrete form (ICF) construction, designed for energy efficiency, fire resilience, structural durability, and multigenerational living. The proposed estate includes radiant floor heating, California room with fireplace, second-story deck, radiant-heated swimming pool, detached pool house with loft/artist's studio, and an expansive 1,840+-square-foot basement garage with 10-foot ceilings—ideal for a workshop, collector-car garage, or private golf simulator studio. Additional design features include an engineered elevator shaft, combination boiler for heating and domestic hot water, and a ground-mounted solar system with battery storage and generator backup. EXTENSIVE SITE IMPROVEMENTS: Significant investment in engineered excavation, imported clean fill, vegetation management, and site preparation. Permitted grading work completed, with engineered civil site and drainage plans. Approved five-bedroom pressure-dosing septic design, installed Nevada Irrigation District (NID) treated water meter, and established NID irrigation water allocation. DESIRABLE AUBURN LOCATION: Situated along the scenic Mount Vernon Wine Trail, offering peaceful country living with convenient access to shopping, dining, and recreation. Two convenient approaches include Mount Vernon Road via Nevada Street, avoiding Highway 49, or Atwood Road via Highway 49. A RARE OPPORTUNITY: Extensive pre-development work and infrastructure improvements offer a significant advantage over unimproved acreage, potentially saving substantial time and expense in creating an extraordinary custom estate.