With the increase in population in metropolitan areas, alternative modes of transportation are becoming more attractive to save the user time and reduce congestion. Alternative fuel sources are also being investigated to propel cities and infrastructures into the zero-emission future. Like the infrastructure required for transit and medium-duty EVs, building infrastructure for Electric Vertical Take-Off & Landing (eVTOL)s can be scaled to meet the demand.1 This study explores eVTOL sites that consist of an at-grade market location, existing multistory parking garages, and high-rise buildings. The study provides budgetary estimates for the development of vertiports in a variety of scenarios, highlights the potential co-development of Electric Conventional Take-Off & Landing (eCTOL) infrastructure, and guides planning and future study that will help the electric aviation ecosystem prepare for eVTOLs.