Set along the fairways of The Hills of Lakeway within one of Austin's most established guard-gated golf communities, 12 Treehaven Lane is an extensively renovated contemporary residence blending architectural sophistication with warmth, comfort, and livability. Framed by mature oak trees and overlooking the golf course, the home showcases a comprehensive renovation with a high level of finish, craftsmanship, and design continuity throughout. Clean-lined architecture, black-framed window and door systems, wide-plank hardwood flooring, natural stone surfaces, designer lighting, and custom millwork create a refined modern aesthetic while maintaining an inviting sense of scale and comfort. Oversized sliding glass doors open the primary living spaces to covered terraces overlooking the pool, spa, golf course, and surrounding oak canopy, creating seamless indoor-outdoor living. The kitchen was designed as both a functional workspace and central gathering area with premium appliances, custom cabinetry, oversized island seating, dramatic slab surfaces, extensive storage, and additional prep and utility areas. Multiple living spaces and flex rooms provide versatility for entertaining, work-from-home functionality, media use, fitness, guests, or multigenerational living. The primary suite offers golf course views, direct terrace access, expansive walk-in storage, and spa-inspired finishes, while secondary bedrooms and guest spaces continue the same level of material quality and architectural consistency found throughout the home. Additional features include a standing seam metal roof, custom built-ins, oversized covered outdoor living areas, expansive balcony spaces, pool/spa, and generous storage throughout. Residents of The Hills of Lakeway enjoy 24-hour guarded access and close proximity to golf, tennis, pickleball, fitness facilities, dining, parks, trails, Lake Travis, Bee Cave, Hill Country Galleria, and highly regarded Lake Travis ISD schools.