In the foundation period of Ankara, following the structural administrative arrangements, the development process of the city started first, with the Lörcher Plan in 1925, then the Jansen Urban Plan in 1932, and Yücel Ubaydin Plan in 1957,. In 1990 the Ankara Metropolitan Planning Bureau Plan, the Ankara 2015 Structural Plan Proposal, and in 2025 Ankara Metropolitan Area Development Scheme are the other planning studies that have influence on today’s macro form of the city, after the Lörcher Plan.