Incredible Opportunity in Mission Viejo! Welcome to 27911 Sheffield - a spacious 4-bedroom, 3-bathroom home offering 2,360 sq ft of living space and unlimited potential in one of South Orange County's most beloved communities. Set on a quiet interior street, this property features a well-designed floorplan with vaulted ceilings, formal entry, and a main-floor bedroom with adjacent full bath - ideal for guests or multi-gen living. The kitchen opens to a casual dining area and family room with fireplace, while separate formal living and dining spaces offer flexibility for entertaining. Upstairs, the oversized primary suite features vaulted ceilings, a private balcony, dual-sink vanity, soaking tub, and large walk-in closet. Two additional bedrooms and a full bath complete the upper level. Enjoy access to Lake Mission Viejo HOA, where members can take advantage of year-round amenities like boating, paddleboarding, fishing, swimming, private beaches, picnic areas, and lakeside concerts under the stars. The lake also hosts movie nights, holiday events, clubhouse rentals, and summer camps - creating a true resort-style lifestyle right in your neighborhood. Surrounded by scenic parks, walking trails, and a strong sense of community pride, this location is ideal for families and investors alike. Zoned for award-winning schools: Philip J. Reilly Elementary, Newhart Middle School, and Capistrano Valley High School - all known for their academic excellence. Additional highlights include an indoor laundry room, 3-car garage, and a low-maintenance backyard with covered patio and side yard space. Whether you're looking to build sweat equity or restore this home to its full potential, this is your chance to own in one of Mission Viejo's most sought-after neighborhoods.