Nestled within one of Yorba Linda's most prestigious and secluded enclaves, this exquisite custom estate masterfully blends luxurious living with everyday comfort. Re-Built in 2017 and thoughtfully elevated with almost $700,000 in enhancements since, every detail has been curated to deliver a truly unmatched indoor-outdoor lifestyle experience. Step through the impressive new custom front door into a world of elegance, where a dual staircase, gorgeous marble and wood flooring, and coffered ceilings immediately capture your attention. The open-concept living spaces flow seamlessly, centered around a spectacular great room featuring a state-of-the-art projector and a chef's kitchen featuring gleaming Quartz countertops, double oversized islands, a built-in Thermador refrigerator, top-tier stainless steel appliances, and a secondary Wok kitchen for effortless entertaining. A full wall of accordion glass doors invites you to the ultimate private backyard sanctuary - complete with a resort-style pool and spa, sunken firepit lounge, built-in outdoor kitchen with BBQ and beverage centers, putting green, and multiple covered seating areas for year-round al fresco living. This is true Southern California luxury at its finest. The first floor also offers a private guest suite and a custom wine room, perfect for showcasing your collection and entertaining guests in an intimate, sophisticated setting. Upstairs, you'll find three secondary bedrooms, the newly built laundry room, and an inviting loft. The primary suite is its own oasis, featuring a private balcony with breathtaking canyon views, an oversized walk-in closet, and a spa-caliber primary bath complete with steam shower, separate sauna, dual vanities, and luxurious soaking tub. Additional upgrades include custom-built garage cabinetry, upgraded garage doors, designer window treatments throughout, and a full Sonos sound system seamlessly integrating both indoors and outdoors. Located within minutes of Yorba Linda's premier attractions - including the award-winning Yorba Linda High School, the Black Gold Golf Club, and the upscale dining and shopping of Yorba Linda Town Center - this home perfectly balances privacy and convenience. Miles of equestrian trails, parks, and preserved open space are just moments away, allowing you to enjoy the natural beauty that defines this coveted community. 21895 Heatheridge is more than a home - it's a private luxury retreat where every day feels like a vacation.