Nestled atop the serene bluff overlooking the hills of Orange County, 20525 Cassia Lane is a rare gem.This elegant gated estate sits on a prime parcel of nearly two acres, offering the ultimate in luxury. This estate has been one family owned and in 2024 saw the complete remodeled of all interior and exterior spaces- the result is a beautiful designed home situated on an obscure cul-de-sac spanning nearly 7,000 square feet of elegant living. The formal foyer is grand with a sweeping iron staircase & voluminous ceiling which sets the tone for this spectacular home. The living room features a stunning marble fireplace surround with walls of windows providing an abundance of natural light and views of the gardens. The formal dining room can accommodate entertainment on a grand scale. Designer inspired chef's kitchen offers the finest amenities and finishes of quartzite counters, marble accents and stainless appliances. Offering space for luxury living and grand scale entertaining the two-tiered great room will surely be a favorite. The upper level offers an intimate setting, accented with stacked stone fireplace and custom built-ins. The lower level offers the option for a game room, dance floor or home theater, with a fully equipped second kitchen and bar seating. A testament to thoughtful design, this estate features six spacious bedrooms, an expansive home office and eight well-appointed bathrooms. The main floor home office is conveniently situated off the formal entry with walls of custom-built bookcases, a fireplace and rich wood flooring. Two ensuite bedrooms are on the first floor which are perfect for a main floor primary, guests or multi-generational living. The upper-level primary suite is spectacular with a stunning fireplace, private dressing room, and the most luxurious marble bath with dual vanities, freestanding soaking tub, grand shower and two walk-in closets. Three additional ensuite bedrooms with balconies complete the upper level. The estate's outdoor amenities are equally impressive with stunning grounds featuring a sparkling swimming pool and spa, pool house, putting green, multiple patios for entertaining. Four-car oversized garage, extra large driveway to accommodate all the vehicles with additional RV/boat enclosure w/hookups, and designed to provide ultimate outdoor living experiences. This exceptional estate presents a unique opportunity to own a one-of-a-kind piece of paradise in Yorba Linda.