Welcome to The Avenue D Sanctuary, a rare legacy estate in the heart of Old Katy. Privately tucked behind a majestic canopy of mature oaks on 1.71 acres, this meticulously maintained 4,211 SF residence offers predominantly single-story living w/ a private upstairs guest suite. Exquisite crown molding, custom millwork, coffered ceilings, custom wood door w/ stained glass transom & Italian tile entry create timeless elegance. The well-appointed kitchen showcases quartz countertops, premium appliances & custom pantry. Recent improvements include a 2023 roof & updated plumbing. Expansive brick-paver motor court, patios, walkways and 3 paved driveways enhance the estate's grand arrival & exceptional versatility. A fully insulated 20'x40'air-conditioned workshop, a 41'x26' powered storage barn / RV storage and an oversized 3-car garage provide exceptional flexibility for projects, collections, recreation, equipment or professional endeavors. This is a one-of-a-kind Katy ISD estate!