Venerated architect, Julia Morgan designed Prairie and Tudor melded home in 1911, the early part of her career. One of four Morgan properties in Petaluma. Not available for over 50 years, this home is preserved; the vast majority of fit, finish & details in tact. WE HAVE THE ARCHITECT's FLOOR PLANS, elevations, and cabinetry drawings showing original intent of Morgan & first owner. Facing gracious D street, the house takes huge advantage of golden hour sunsets. Over 3000 livable square feet, 8000 sq ft lot, free-standing garage that appears to have been an ADU. Partial basement. First owner was J. Edgar Allen, a councilman and founder/board of the Petaluma Golf Course. Morgan and the house have been extensively covered in books, magazines, newspapers, and documentary programs. Elegant proportions, warm entertaining spaces with natural woods, tile. Extensive built-ins like an Inglenook, Dutch settle, dining buffet and china cupboard. Library has custom fitted book shelves. Many antique fixtures & stove. Four bedrooms, first floor bedroom is en suite. Two staircases. Formal bannister front stairs and servants stairs connecting maids room with kitchen and laundry. Laundry has fabulous double stone standing wash sinks. Breathtaking for historians & old home lovers. Once in lifetime