The thirty-sixth lecture in Doug Allen's History of Urban Form series traces the expansion of regulatory frameworks in the 20th Century. It beings with the Zoning Enabling Statute and early foundations of urban planning in the United States and then walks through the key legal cases of Euclid v. Ambler and Nectow v. Cambridge, focusing on the differences between application and constitutionality of laws.

Note: Unfortunately a significant amount of audio is missing from this lecture.