Rare combination of location, privacy, acreage & a unique 2 acre buildable site, 11,553 sf Estate on 4 acres of table land & 2 ravines one of Lake Forest's most sought after & significant properties. Originally the carriage house for the Phillip Swift Estate, it has been expanded several times to achieve its current size & status. In the early 1920's Farwell Winston, extensively expanded & remodeled the home with architect Stanley Anderson. From 1970 to 1972 the Potter Palmers added 2 major additions, plumbing & electrical upgrades, with architect James Keiser & Bleck Engineering Company. This French styled stucco Estate has been maintained and improved by the current owners from 2016 through 2020. 1st floor-Entry Foyer - Travertine marble floors, rich oak wood, circular staircase, expanded powder room with Italian glass vanity. Impressive living room (former carriage house) with fireplace, hardwood floors, ceiling beams, crystal sconces, French doors. Grand dining room with parquet floors, brass chandelier, silver closet, French doors leading to redwood surround deck on west ravine. Library with fireplace, hardwood floors, 12 ft floor to ceiling window overlooking the ravine. Family Room with arched specialty tiled fireplace, pegged wood floors, floor to ceiling sliding glass doors adjacent to the pool, and tiled kitchenette with oven, burners, dishwasher & microwave. Cabana with full shower & bathroom, 2 large dressing rooms, hot tub, laundry fixtures & counter top in large open area leading to 2nd garage. Utility closet includes a 40 gallon H2O heater for this area. Sun room, floor to ceiling sliding glass doors on 3 sides & wet bar. Solarium with floor to ceiling sliding glass doors & terra cotta flooring. Main kitchen of white cabinetry, JennAire stoves with capacity for ten burners or a mix of burners and grills, Corian counters for maximum durability, built in heating plates and warmers, walk-in pantry, island & large seating area with couch & chairs as well as kitchen table. Arched access door to wrap around redwood deck on the west ravine for comfortable outdoor dining. Recently remodeled laundry room with built in cabinets & hanging racks. 2nd floor- Master suite with marble fireplace, 2 very large walk-in closets with vanity and sink in between, extensive built-in cabinetry, recently renovated Calacatta marble bath, shower, vanities. Kitchenette with sink, microwave, storage. 9 bedrooms (9 in total), most with recently renovated marble counter tops. 8 of the bedrooms have private ensuite baths with added storage cabinetry. Turret office connecting the 2 main wings of the house. Large playroom with 5 large built in shelf sections, floor to ceiling mirrors at one end, specialty floating dance flooring. INTERCOM throughout the house via a telephone system. MUSIC SYSTEM and speakers throughout the 1st floor, by the pool, and the black slate patio. DIVIDED BASEMENT, all with indoor outdoor carpet. Beneath the main kitchen is a large area for crafts & extensive built in shelving. At one end is a Swedish cedar wine cellar. Included is a large boiler and chiller for the gas fired and water based HVAC system, and air handling blower units. There is a 100 gallon H20 tank for a portion of the main house. 5ft high passage under West wing. Beneath family room/kitchenette is large sauna, steam room & exercise area. This also houses an air handler, 50 gal H2O and sump pumps. The current owners have done extensive improvements: a recently renovated cottage with fireplace (originally the groundskeeper cottage) redwood deck wrapping around East & South end of home, "woodland garden" with multiple stone walk ways leading to south ravine, sewer system, added over 400 trees and bushes, recessed lighting and fans, new fence, piping, trees, ravine work, retaining walls, ceiling fans, and freshly painted exterior. The estate features: a tennis court, playground, fire pit, 4 patios, 2 courtyards for resort style living.