10680 & 10690 Dover St are offered together as a rare 6.5+ acre estate compound combining a ranch home with an attached secondary living unit, a 4,000 sq ft pole barn, multiple outbuildings, and an additional flat, buildable parcel for future expansion. This A-1 agricultural property offers flexibility, functionality, and long-term potential in a desirable Westminster acreage setting. The home includes a new furnace and swamp cooler, energy-efficient windows, updated well plumbing, and a fully modernized electrical system throughout. The attached secondary living space is ideal for multigenerational living, guest accommodations, or rental income. The expansive shop provides excellent space for vehicles, equipment, workshop use, or business operations. Additional outbuildings are ready for livestock such as cows or chickens, making it well suited for homesteading or small-scale farming. The adjacent 10690 parcel is a rare, private, buildable lot with architectural plans available, offering the opportunity to build a custom home, create a multi-home family compound, expand your agricultural footprint, or hold for investment. A-1 zoning allows larger accessory structures, expanded land use flexibility, and lower property taxes compared to traditional residential zoning. Located minutes from Standley Lake Regional Park, shopping, top-rated schools, and convenient Hwy 36 access to Denver and Boulder, this bundled offering provides a unique combination of acreage, infrastructure, and future development potential.