Truly one-of-a-kind opportunity to build your dream home on an idyllic waterfront mountain property only minutes from all of Boulder's amenities (5-10 min to Whole Foods, Pearl Street, Lucky's market, NB Rec Center). This is the last piece of prime buildable land in coveted Pine Brook Hills. This private, peaceful, and remarkably secluded 9+ acre oasis features: abundant wildlife, lake and valley views, nearby creeks, natural stone 'cascading patios' overlooking the lake (hand-crafted by a master mason), private driveway, multi-car on-site parking, nearly 2 miles of nature trails, no visible adjacent neighbors, and no adjacent roads. Seller has confirmed property insurability with a major carrier. And best of all, full utilities are already installed (water, septic, electric, gas, landline, cable). Virtually flat building site is pre-cleared, and 90% tree-mitigated with Wildfire Partners program. Site Plan Review process has been completed and County-approved. Exempt from Pine Brook covenants, restrictions, and HOA architectural review board. Great solar access for net-zero building. Driveway upgrade permitted and 95% completed (widened to code for fire truck access, with 100-year retaining walls engineered and installed, only awaits build for final grading). Dry hydrant onsite is directly connected to the fire department. Seller has full plans for 2 designs already approved and permitted by the County. If you're planning to build a home in Boulder, this is a must-see property.