Exceptional Golf Course Living with Private Guest Cottage. Welcome to 919 Biscayne Street, a stunningly reimagined single story home blending timeless Lakeway charm with modern luxury. Located in Lakeway and originally one of the communitys first 300 homes, this residence has been completely renovated with permits, from 2022 to 2025 while preserving its classic character. Ideally situated on the Live Oak Golf Course and located within the award-winning Lake Travis ISD, this property offers the perfect combination of location, lifestyle, and high end upgrades. A rare highlight is the fully independent cottage,adding 337 square feet and complete with its own private entrance, kitchenette, full bathroom, laundry, dedicated HVAC, walk in closet, and a rooftop deck with sweeping golf course views. It is ideal for guests, multigenerational living, or income producing potential. The main home showcases an open concept design with vaulted wood ceilings, a designer kitchen featuring quartz countertops, custom cabinetry, premium Samsung appliances, and extensive system upgrades including a new roof (2024), HVAC, plumbing, electrical, tankless water heaters, windows, and smart home features. Step outside to your private retreat with a resort style saltwater pool, expansive wood deck, new landscaping, and architectural lighting, all backing directly to the golf course with a rare grandfathered retaining wall. This turnkey property delivers luxury, flexibility, and prime Lakeway golf course living all in one exceptional offering.