This project provides a method to improve the urban environment of Indianapolis by developing vacant lots currently used for parking lots. Redesigning vacant lots as public open spaces can enrich the downtown environment both culturally and economically.This project is comprised of four sections. The first section is the introduction of the project. The second section addresses the problems caused by vacant lots in cities and the influence of public open spaces on public life and the city environment. The third section consists of developing a plan for public open spaces by redesigning selected vacant lots in downtown Indianapolis, Indiana. The third section will present a model of development of public open spaces for the city and will legitimize the necessity for revitalization. The last section will conclude the project.The goal of the project is to present critical aspects regarding existing vacant lots in downtown areas and to develop new types of public open space that can benefit the citizens and environment of Indianapolis, Indiana. The design new types of public open space that can benefit the citizens and environment of Indianapolis, Indiana. The design strategy will integrate reevaluation of vacant lots, creation of new types of public open space, and improvement of the city environment. / Department of Landscape Architecture