The keynote at the Korean FORUM8 Symposium examines the transformative impact of Web3 technologies on the construction sector. The innovative application, "F8 NFTS," which harnessed Smart Contracts and NFTs tailored for construction, is presented and discussed and highlights how "F8 NFTS" streamlined processes, enhanced transparency, and empowered stakeholders throughout the project lifecycle. By integrating decentralized solutions, the application effectively mitigated risks and fostered improved collaboration among all parties. This discussion underscored the significant opportunities Web3 offers, positioning it as a vital catalyst for innovation and efficiency in shaping the smart cities of the future.