3900 Simon Ridge Ct Luxury meets resort-style living on a private cul-de-sac lot in this extensively upgraded home featuring an incredible backyard designed for year-round entertaining. The approximately 45, 000-gallon pool with dramatic sheer descents, spa, recently upgraded equipment, outdoor kitchen, fire pit, artificial turf, and multiple outdoor living areas create a private retreat unlike any other. Inside, quality craftsmanship and designer finishes are evident throughout. Rich hardwood floors extend through the main living areas, staircase, and primary suite, while New Zealand wool carpet adds warmth upstairs. The gourmet kitchen features upgraded granite, marble backsplash, limestone flooring, beverage refrigerator, trash compactor, and abundant cabinetry. The family room showcases a stately fireplace with custom Lagos Blue limestone, fire glass, and fireballs, while the indoor/outdoor audio system enhances both everyday living and entertaining. The luxurious primary suite offers a true spa experience with honed travertine flooring and shower surround, custom quartz vanities, a Hansgrohe AXOR multifunction shower system, and a heated bubble massage chromatherapy air tub. Every bathroom has been beautifully remodeled with designer finishes. Offering 4 bedrooms, a private study with custom built-ins, formal living and dining rooms, media room, and an expansive game room opening to a balcony overlooking the backyard, this home is as functional as it is beautiful. Extensive updates include approximately $25K in designer lighting, $12K in upgraded architectural hardware, custom blinds and shades, roof (2022), HVAC (2020) with 2026 plenum upgrades, tankless water heater (2025), insulated garage doors, and epoxy garage flooring. Ideally located just 20 minutes from Downtown Austin and within walking distance to lakes, parks, miles of hike-and-bike trails, restaurants, shopping, and entertainment. Zoned to highly acclaimed Leander ISD with nearby charter and private school options.