380 Hackmann Lane OPEN HOUSE SATURDAY 11/7/2026 & SUNDAY 11/8/2026, 2-4 P.M. LOCATION, LOCATION, LOCATION! Hurry, don't miss this rare opportunity in the highly sought-after prestigious Runnymede subdivision of Creve Coeur! Located just off Ladue Road and near Westwood Country Club, this spacious full-brick ranch sits on a beautiful, tree-lined .62-acre homesite, 120 ft Font X 225 Ft Deep. Runnymede is known for its mature trees, generous homesites, sprawling ranch homes, distinctive architectural styles, and gently curving streets that create a wonderful country-like setting while remaining centrally located with convenient access to Highway 64/40, shopping, restaurants, and area amenities. Two major hospitals are nearby, including Mercy Hospital St. Louis, a Level I trauma center, and Missouri Baptist Medical Center. The property features an attractive circular driveway in front, providing convenient guest parking and an inviting approach to the home. Step through the wood-and-glass front entry into the welcoming 13' * 8' vaulted entry foyer to make a memorable first impression. Designed by a veteran engineer and built in 1984, this substantial home offers approximately 3, 320 sq. ft of main-floor living space, 4 generously sized bedrooms, 3 full bathrooms, and 1 half bath. Quality construction features include a full-brick exterior and a Structural Insulated Panel System (SIPS) in the exterior walls. Vaulted ceilings throughout the home! The also features crown moldings, an 8' * 5' cedar closet, a central vacuum system, and an in-ground sprinkler system. The vaulted great room offers a gas fireplace w/ raised brick hearth and solid oak mantel, flanked by custom built-in bookcases and custom oak cabinetry. The gas F/P may offer option to convert to wood-burning. A sliding glass door leads to the inviting 19' * 13' covered, screened-in rear porch with scenic views. From the porch, step outside to an additional entertaining area perfect for barbecuing. A 32' * 20' rear driveway and concrete patio area offers even more space for outdoor living! The gourmet large kitchen has an adjoining breakfast room, warm oak cabinetry, generous counter space, and double wall ovens The vaulted primary bedroom features a walk-in closet with built-in shelving and a private, vaulted ensuite bath with a double vanity, jetted tub, and separate shower. Two of the other bedrooms share a Jack-and-Jill full bath with a walk-in shower. The vaulted oversized, rear-entry, extra-deep two-car garage measures approximately 21' wide by 33' deep. The full basement offers a walk-out lower level and features an impressive 8'7 poured-concrete foundation, plumbing rough-in for an additional bathroom, and tremendous expansion potential. Envision a spacious recreation room, home theater, fitness area, entertainment retreat, or even a mother-in-law suite, subject to the necessary improvements and approvals. Bring your design ideas, custom dream home vision, and artistic creativity! With its desirable location, substantial square footage, solid construction, generous room sizes, and exceptional potential, this is an opportunity to transform a home in one of Creve Coeur's most established and desirable neighborhoods. Runnymede continues to attract strong buyer interest, with a ranch home in the subdivision selling for $875, 000 in September 2026, demonstrating the appeal of this exceptional neighborhood. Whether you are looking to create your dream residence, accommodate extended family, or invest in a property with significant upside, the possibilities are endless! Hurry, this home will not last long! The late homeowner, an engineer, designed and built this home and was its sole owner. His family is now selling the property as part of his trust estate. The original design and architectural plans are available upon request. Property is being sold by the trust strictly "AS IS." Seller will make no repairs or provide repair credits.