Who designed the second garden city, Welwyn?

The correct choice is Louis de Soisson, who was responsible for designing the second garden city, Welwyn. Welwyn Garden City was established in the early 20th century as a planned community that reflected the ideals of the garden city movement initiated by Ebenezer Howard. De Soisson, along with Howard, envisioned this community as a blend of urban and rural living, promoting residential areas surrounded by green spaces, which was a defining characteristic of garden cities. The design of Welwyn emphasized the importance of aesthetics, open spaces, and connectivity while providing residents with a high-quality living environment and access to recreational facilities.

The other individuals mentioned played significant roles in urban planning and architecture but were not directly involved in the design of Welwyn Garden City. Raymond Unwin, for example, was instrumental in the broader garden city movement, particularly with the original Letchworth Garden City. Barry Parker also contributed to garden city planning but was more involved with Letchworth. Finally, Daniel Burnham, known for his work in the City Beautiful movement, focused on large-scale city planning in the United States rather than the specific design of garden cities in the UK.