On the market for the first time in 50 years, 1749-1751 9th Avenue is a charming 1911 Edwardian residence on a coveted block in Golden Gate Heights bordering the Inner Sunset. Set on an extra-wide 43-foot lot, this cherished property offers an ideal family compound with exceptional flexibility and endless potential to make it one's own. The main house at 1749 features 4 spacious bedrooms, 3.5 bathrooms and approximately 2,770 sq. ft. across 3 levels, plus a separate 1-bed and 1-bath garden-level studio, bringing the combined living space to approximately 3,215 sq. ft. per graphic artist/floor plan. A welcoming foyer opens to a gracious living room overlooking the tree-lined street and flows into a formal dining room with a wood-burning stove set within the original stone fireplace surround. Beautifully preserved period details include rich Douglas Fir floors, coved ceilings, custom built-ins with stained glass doors, ornate ceiling medallions and pocket doors. The spacious kitchen features a breakfast nook, adjacent laundry room and powder room, plus new French doors opening to an extra-wide deck with stairs leading to the garden and detached cottage. Upstairs, the second level offers 3 bedrooms and 2 full bathrooms, including a bright east-facing bedroom that can serve as a second primary en-suite with 2 closets. Two additional garden-facing bedrooms, one with an adjoining office/flex room and walk-out deck, plus a hallway linen closet complete this level. The top floor is dedicated to an expansive primary suite with vaulted ceilings, full bathroom, 3 closets and a private deck with partial views of the Golden Gate Bridge, de Young Museum, Sutro Tower and USF. Unit 1751 is a fully detached cottage offering approximately 645 sq. ft. of living space with 1 bedroom, 1 bathroom, living room, kitchen, laundry area and private patio. Together, the oversized grounds and additional living spaces provide exceptional versatility for multigenerational living, extended guests, a live-in nanny, home office or private practice. A generous 1-car garage with workshop area, ample storage, additional driveway parking, and owned solar panel system complete this property. Located just blocks from the popular cafes, restaurants, shops and Sunday farmers market along Irving Street, and 5 blocks from Golden Gate Park. With a Walk Score of 98 and easy N-Judah access to Downtown and Ocean Beach, this prime location offers the best of San Francisco neighborhood living.