Welcome to this sprawling single story custom estate w/ guest apartment in Santa Clarita's highly coveted Happy Valley community! Expanded & rebuilt in 2020, the open & bright gourmet kitchen with picturesque view of the swimming pool features immaculate manufactured quartz countertops, custom built wood cabinetry w/ soft-close drawers, a collection of high-end appliances including a Lacanche Saulieu/Savigny gas range, 36" Subzero counter-depth refrigerator & freezer, Viking French Door Thermal Convection oven, Kitchenaid dishwasher & trash compactor, & a Shaw's Original Apron Front kitchen sink with stylish Waterstone faucet. The kitchen additionally boasts a unique 1880's A.W.P.M.A custom art back-splash sealed under museum glass, coffee station w/ Zephyr beverage fridge, custom banquette seating, a walk-in pantry w/ wooden doors & glass windows, & neutral COREtec Vinyl Flooring tieing in the kitchen w/ the formal entry & living room. With a river rock wood-burning fireplace, hearth seating, & entertainer's bar w/ sink, the spacious living room is perfect for hosting family & friends. Additional main house features include a spiral oak staircase leading to a library/loft w/ large walk-in attic, an oversized master bedroom w/ custom walk-in closet & center island, 3 additional rooms (1 w/ en suite bathroom & shower), guest bathroom w/ vintage claw-foot tub & rain shower, newer Milgard dual-glazed argon windows, 2 air conditioning/heating systems, 2 whole house fans, Life Source water filtration system, & much more! Step in to the backyard & experience this outdoor entertainer's paradise! With a heated swimming pool w/ new lighting, autofill, & Wi-Fi, a spa perfect for evening star gazing, inviting cabana w/ outdoor kitchen & bathroom, & tennis court w/ overhead lights for night matches, this home has it all! The 1-bedroom apartment above the 3-car garage has been freshly upgraded w/ updated appliances, countertops/cabinets matching the main house, & river rock wood-burning fireplace. Added exterior features of this private & gated stunner include an automatic driveway swing gate & pedestrian gate, custom Tuff Sheds w/ windows, large chicken coop, fully landscaped environmentally friendly grounds w/ water-wise plants, large orchard, vegetable/citrus/rose garden, plenty of room for horses or pets, & the list goes on! With close proximity to freeways, dining, great schools, & not a detail overlooked, do not miss the opportunity to own this exceptional home!