Dianna has worked in local government in different roles for over 25 years. For the past 20 years she has worked on economic development, skills, employment and cultural policy in London. This involved overseeing related grants programmes and securing devolved resources in London. Dianna also supports London boroughs to collaborate, such as the development of the London Infrastructure Framework which identified infrastructure projects of strategic value in the capital. She also develops policy and strategy, such as the co-design of the London Growth Plan with the GLA.