This document discusses developing sustainable urban creative clusters. It notes that cities foster collaboration, inspiration, and the exchange of knowledge which allows creative industries to thrive. Creative industry activity concentrated in certain cities can lead to the formation of "creative clusters," which can emerge organically or be planned. The document examines Cardiff's television and digital media cluster, finding the television industry protective of intellectual property while the digital media industry facilitates information sharing. It concludes that Cardiff is well positioned to attract creative professionals but must emphasize its unique character, and recommendations are made to encourage further cluster growth through interdisciplinary links and connections to higher education.