Welcome to 21282 Hillside Court in the highly desirable Montbury neighborhood. This 5-bedroom, 4 bath home features vaulted ceilings upon entry, an additional office and/or downstairs bedroom with full bath AND a small study, or craft room tucked away upstairs. Nestled in a quiet cul-de-sac with expansive views of the Saddleback Mountains, this huge lot offers an incredible backyard with an underground spa, firepit and ample room for a pool or full outdoor kitchen. The opportunities are endless! Upgraded bathrooms, and custom designed kitchen with unobstructed views and a new beautiful sliding glass door that leads you into the backyard retreat. The master bedroom upstairs offers the same panoramic views and opens up onto a newly added deck made of Trex composite decking that is waterproof and requires minimal maintenance. Prepare to watch the summer sunsets and fireworks or wake up in the cold winter months with occasional views of snow dusted mountains! Newer windows and roof, recessed lighting, and EV charger in the 3-car garage. Conveniently located close to the 5, toll roads, Trabuco Hills High School, shops and restaurants. Low HOA and community features a tennis and pickleball court. This home truly is something special.