Do not miss this extraordinary, once-in-a-lifetime opportunity to own one of the most iconic properties in Sauganash, one of Chicago's best neighborhoods and hidden gems! This magnificent English Tudor is located on the much sought-after 6200 block of Knox Avenue, where homes rarely become available. The house was designed in England and built in 1936 on an enormous 125 x 80 lot. The original structure was lovingly restored and enlarged-a seamless three-floor addition more than doubling it in size, reflecting modern amenities while utilizing the historical materials and nuances of the original build. Charm and sophistication radiate throughout this five-bedroom, six-bath family home. Timeless and architecturally distinctive features with stunning gables, Lannon stone, brick, stucco, Tudor beaming, leaded glass windows, slate and copper roofing, and gutters. The foyer has its original layered plaster moldings, slate flooring, and in true English Tudor fashion, a water closet-- the first of two powder rooms on the main level. The highlight of the massive addition is its Round Room with 17 windows, circular walnut border floor with herringbone inset, custom plasterwork, and a plastered vaulted 20-foot ceiling with customized lighting to showcase a stunning ceiling mural. Grab a book from the adjacent library or relax in the atmosphere! The gourmet kitchen is enormous: 16' by 24' and boasts classic white custom nuHaus cabinetry with desk/workstation, granite countertops, peninsula with storage and seating, coffered ceilings, and a bay window breakfast nook with storage banquette. Top of the line appliances include a Sub-Zero Pro-Line 48 refrigerator, 48 Five Star dual-fuel with convection oven, Meile dishwasher, Franke hot water dispenser, and Scotsman under-counter ice maker. The sun-drenched family room has floor-to-ceiling built-in storage, French doors leading to the exterior, and a gas fireplace. Work from home in the office/library, with copper roofing and French door for patio access. A gracious formal living room features parquet flooring, window seat, bay window, and a massive original limestone fireplace and gorgeous coved moldings. The formal dining room features the original plaster coved ceiling trim, chandelier, butler swing door, and leaded glass doors to the family room. French doors lead into the library/office. The mudroom has an additional powder room, the second of the main level closets, and personal entry access from either garage or exterior. The primary en suite is expansive with a sitting/dressing area with built-ins for clothing storage and three windows! His and her custom closets, built-in clothing storage, and two additional windows complete this sun-filled bedroom. A junior en suite primary bedroom with three closets. Its bathroom as well as the others are tiled in Ann Sacks custom. Three additional roomy bedrooms feature plenty of closets and storage. Hall bath has jetted shower and vintage glass and steel door. The finished basement spans the entire home footprint with a home theater, gym with steam shower, playroom, laundry, and ample storage space. Home theater, gym, and bath space are part of the addition and have higher ceilings- a perfect potential in-law suite! The home has four HVAC zones. Central air and heating system is gas throughout and radiator heating was kept in original rooms. Windows and exterior doors are Pella Architecture Series. Interior doors are solid wood. There are hardwood floors on the first and second floors and a custom-designed whole-house sound system. The backyard is large enough to fully tent and seat 150+ guests at your most memorable events! A sprawling and elegant stone patio is set in a professionally landscaped yard with a sprinkler system and low voltage lighting, and a beautifully maintained garden completes this tranquil outdoor environment. Attached two-car garage. Come and discover all that Sauganash has to offer!