In August 2018, the regulation known as Lex Developer came into force in Poland. This law was designed to ease the development of new apartments by providing a mechanism by which residential blocks could be built when a spatial plan is not in place. The Integrated Investment Plan is essentially an extension of this regulation, by broadening it and extending it to other types of development projects. “The spatial planning reforms that came into force in September 2023 have introduced many new concepts and planning tools. However, many of them have been delayed until January 2026. One of the new tools created by the law that will come into force at the beginning of 2026 is the Integrated Investment Plan (ZPI),” reveals Karolina Furmańska, an associate and residential expert at Cushman & Wakefield. With a ZPI, a developer can approach a local council with their plans for a project even when the urban spatial plan does not allow this kind of development. After negotiating