Welcome to Harmony Oaks in the prestigious Rancho Santa Teresa Estates. This sprawling single-story ranch boasts over 3,500 square feet of living space nestled amidst 10+ acres of lush landscapes and open spaces with stunning views. Two front doors give endless opportunity to split home into two if desired. The property features a serene stream and offers ample potential for horse facilities, with many neighbors already having barns and training areas. This unique estate provides multiple additional potential sites for an ADU/granny flat, perfect for multi-generational living or creating an income-producing property. Enjoy the benefits of paid solar, significantly reducing your electric costs. The established koi pond adds a touch of tranquility, while the dedicated RV area ensures convenience for travel enthusiasts. Relax on the wrap-around porch and patio, or explore the beautifully landscaped grounds with unique trees, bushes, flowers, and foliage. Additional sheds and 3 car garage offer ample storage space for all your needs. This home is a rare find, offering both luxury and the charm of country living. Over 10 acres in the prestigious RSTE. Mostly horse property estates nearby. Many ranches include ADUs, wineries and other specialty properties. Creek runs year round. Bedroom 1 is your master retreat with walk in closet and 4 piece en suite. Bedroom 2 is the hallway bedroom. Bedroom 3 is a room that has a slider onto the back porch. It also has a small split level style loft. Bedroom 4 is in the vaulted addition of the home and has an open ceiling. It's unique but functions as a good size bedroom. The living room has a fireplace with a wet bar and dual sliders opening onto the patio. It faces the open concept kitchen. Living room 2 has a ceiling fan and is on the opposite side of the fireplace, both with high beamed ceilings. The formal dining room is on opposite side of the kitchen, with two skylights, chandelier and vaulted ceiling. The kitchen has granite counters with an eat-in area. It also has a slider to the wrap around porch/patio. There's a built in desk, single oven with built-in microwave and electric cooktop. The kitchen has a butler pantry/utility room off it that includes an extra half bath, washer, dryer, and enormous pantry area. Off the kitchen is the garage that has a 2014 electric water heater. There's a goodman AC outside the garage and solar! In the addition part of the home, where the open ceiling bedroom lives, there is an enormous flex room that can be used as a 3rd living area, converted into a 5th bedroom, exercise room, turned into an ADU/ granny flat. There's another huge area that was used as a library and home office. This could even be converted to part of the granny flat/ADU or a 6th bedroom.