Experience and live the ultimate private mountain retreat dream that is 25125 Basel Drive. Appropriately named “The Sanctuary” this property includes 3 parcels which total 26,100 sq ft(1/2 acre) of private living. Perched above evergreen treetops, this luxury treehouse offers expansive, unobstructed north west views of the Crestline basin & Mt. Baldy mountain ridgeline. No neighbors to be seen when enjoying morning coffee on the front deck and evening happy hour on the rear deck as the sun sets. Built in 2009, no detail was overlooked within this 3,655 sq ft, 4 bed, 3 bath custom build. Level entry from driveway & 2 car garage, the main floor offers vaulted ceilings throughout an open concept floorplan. A entertainers dream kitchen complete with; solid surface granite counters, hardwood flooring, expansive storage within soft close custom cabinetry, massive center island with prep sink and 4 person breakfast bar. 2nd dishwashing sink with window overlooking the forest and ridgeline view. Living room boasts tranquil views through wrap around dual pane vinyl windows, floor to ceiling fireplace wrapped in custom tile work and artistic rustic wood mantel. Enjoy evening BBQs w/ family and friends from a large main level rear deck overlooking the private grounds. 2nd level offers a spacious family room perfect for family move nights, or home office area. Master en suite fit for a Queen & King features private fireplace and slider out to 2nd level rear deck. Luxurious master suite bath w/ dual vanities, granite counter top, walk in closet and enormous tiled shower w/ the most soothing waterfall overhead fixture. 2nd level also includes full guest bath, 3 guest bedrooms and laundry room w/ sink and hard wood flooring. There's more! 3rd level currently serves as the ultimate home gym/dance/yoga studio. Fully equipped with multiple TVs, recessed lighting, hardwood flooring, mirrors, this is a fitness gurus dream home gym! With a 3rd private deck attached, this level can also be easily be converted into a separate apartment with its own exterior entry. Perfect for those interested in additional monthly income or totally private guest apartment for family and friends. Exterior grounds offer a secluded Ax throwing patio under a canopy of Oak trees. There's also a custom built deck perch for archery & pellet gun enthusiast! No need to worry about power outages, house is equipped with a Kohler full house generator plus A/C. The crown jewel of Crestline, impeccably kept!