1324 Merriam Parkway Nestled in the heart of O’Fallon in the sought-after Windsor Estates subdivision, this exceptional, meticulously maintained one-owner home offers the perfect blend of luxury, comfort, and functionality. Step inside this custom Kappert Construction build to find planked ceramic tile flooring flowing throughout the main living areas, complemented by soaring vaulted ceilings and a stunning stacked-stone, two-way gas fireplace that seamlessly connects the living room and kitchen. The fully remodeled eat-in kitchen is a true showstopper, featuring granite countertops, a custom vertical hexagon tile backsplash, spacious pantry, and sleek stainless steel appliances. The primary suite serves as a peaceful retreat with vaulted ceilings and a luxurious, fully updated en-suite bath complete with new vanity, honeycomb tile flooring, and custom oversized tiled shower w/dual shower heads. The main level also includes a versatile formal dining room that can double as a home office, convenient main-floor laundry, two additional guest bedrooms, and a full bath. The finished lower level boasts a 9-foot pour and is designed to impress, offering a custom wet bar, spacious secondary living area with a raised floor for theater-style seating, a fourth bedroom, and a full bath—ideal for guests or extended living. Additional non-conforming space provides endless possibilities for a home gym, hobby area, or storage. Outside you'll find the best part of this exceptional property: your private backyard oasis featuring custom landscaping, an in-ground heated saltwater pool, an oversized, covered, concrete patio, and a built-in outdoor kitchen—perfect for entertaining year-round. Recent updates include (but are not limited to) a new water heater (2024) and architectural shingle roof and gutters (2025), providing added peace of mind. This home truly has it all—style, space, and exceptional upgrades throughout