1 Introduction Brownfield development is the process of redeveloping previously developed land that is abandoned, closed or underutilized (Adams, De Sousa & Tiesdell, 2010) . While some brownfields may be too contaminated, most brownfields are reusable to create great value once cleaned up. And in this world of scarce resources, brownfield development becomes crucial as we focus more on sustainability and resource optimization. While the factors of growing awareness of urban sustainability issues, the presence of abandoned/disused urban spaces and the growing demand from society for an "urban lifestyle" promote the development of brownfield areas, the process of transfer from the development of Green areas Brownfield development can be very complicated. In this article I will focus on the impacts of government regulation, land ownership and developer behavior on the urban brownfield residential development process. In Section 2, we examine how regulations positively or negatively impact urban brownfield residential development. In Section 3 we will look at the types of ownership constraints and how key ownership constraints can impact or completely deny developers access to brownfield sites. We will also link slightly to government regulations and talk about how government intervention can reduce the impact of property restrictions. In Section 4, we examine how developer behavior changes over time and the impacts on urban brownfield residential development. Finally, we summarize the overall impacts of regulations, land ownership, and developer behavior in Section 5 as a conclusion. middle of the paper......field development. Environment and Planning A, 36, 601-621. Adams, D., & Payne, S. (2011). “Business as usual?” - Exploring the design response of UK speculative housebuilders to the challenges of brownfield development. In S. Tiesdell & D. Adams (Eds.), Urban Design in the Real Estate Development Process (pp, 199-218). Hoboken, NJ: Wiley-Blackwell. Adams, D., Disberry, A., Hutchinson, N., & Munjoma, T. (2001). Ownership constraints for the redevelopment of abandoned areas. Environment and Planning A, 33, 453-477. Adams, D., De Sousa, C., & Tiesdell, S. (2010). Brownfield development: A comparison of North American and British approaches. Urban Studies, 47(1), 75-104.Dixon, T. (2007). The property development sector and the sustainable regeneration of urban brownfield sites in England: a case study analysis in Thames Gateway and Greater Manchester. Urban studies, 44(12), 2379-2400.