Classic, iconic and gracious; a residence of architectural distinction nestled within the highly coveted Old Sunny Hills neighborhood within steps of Fullerton's famed bridle trail, welcome home to 136 Miramonte Drive. Comprising a single-story main residence of approx. 2,700 sq feet with 3 Bedrooms and 2.75 Bathrooms PLUS a detached 733 sq foot ADU built in 2024 featuring 1 Bedroom, 1 Bathroom and a spacious living area with industrial grade 'garage' door producing a great indoor-outdoor flow. A manicured landscape greets you and compliments the Spanish architectural style, an old-world lumber front gate leads into an enchanting courtyard welcoming you to the front door. Inside charming original details like vaulted, exposed beam ceilings and built-ins awaits. The generously proportioned living room overlooks the backyard and front courtyard and features the original stacked stone fireplace. Flowing perfectly from the living room, the formal dining room is a gracious space featuring the same vaulted, exposed ceiling beams and built-ins, French doors lead to the backyard. Beyond the dining room the kitchen awaits featuring granite counters and updated S.S. appliances, a charming breakfast nook overlooks the courtyard. A convenient indoor laundry room and ¾ vintage bathroom are found as you head to the charming den/family room, featuring 3 walls of shelving and cabinetry, the open beamed ceilings are further highlights in addition to the brick fireplace. Direct garage access is found in the den as well. On the east side of the home the bedrooms are found, the primary is comfortably sized with views of the backyard and an enlarged en-suite features a dual sink vanity and separate tub and shower plus a large walk in closet with custom built-in organizers. Two surprisingly large secondary bedrooms share easy access to the main full bathroom with tile flooring and vintage tile vanity. The real show stoppers are outside, a stunning contemporary styled saltwater pool and spa await with custom slide wall accent, across the generously sized patio the remarkable outdoor kitchen awaits with polished concrete counter tops and even includes a built-in wok! Custom metal shade covers are found over the BBQ area & off the French doors of the main home. Across the year the ADU is tucked into the corner of the property and is ideal for multi-generational living options.  An owned 36 panel solar panel system produces 16.1 MWh almost fully offsetting the owner's Edison bill.