Set on 1.25 acres in East Kenilworth, 521 and 515 Roslyn Road (two adjacent properties) create a private estate on one of Kenilworth's most prestigious and sought-after streets. A grand foyer welcomes you to this exceptional home with formal living spaces which includes a sun-filled living room and a handsomely paneled dining room both with fireplaces. A private office with three walls of windows and French doors overlooks the lush, professionally landscaped yard. The top-of-the-line custom cook's kitchen and convenient butler's pantry seamlessly blend into the expansive family room which creates the open floor plan that is on everyone's wish list. A screened-in porch is accessed through a dramatic and oversized mudroom. The extra wide three-story staircase leads you to the second floor's luxe primary suite with walk-in closets, sitting/dressing room, and a spa-like bathroom. Two sizeable bedrooms share a Jack and Jill bath along with 2 additional bedrooms that share a hall bath. The third floor includes one bedroom suite with a newer bathroom and 2 additional bedrooms that share a hall bath. The lower level includes a rec room and loads of storage. Finishes include hardwood floors, coffered ceilings, leaded windows, and custom moldings. The main house has easy access to the four-car garage. Finishes include hardwood floors, beamed ceilings, and custom moldings. The coach house was designed and built with a careful eye to blend seamlessly into this distinguished neighborhood. The coach house includes a living room with fireplace, dining room, kitchen, a bedroom suite, additional bedroom, and bath and offers 4 heated garage spaces. These significant grounds include an elegant sculpture garden with bluestone pebbles, a rose garden, and mature trees. Walk to the lake, the award-winning Joseph Sears School (JK-8), and New Trier High School along with the Metra, shopping, and dining.