The original Residence Parks are markedly different in that the developer typically installed the streets, the utilities, and the public spaces. Then they sold the lots individually and would often require the lot owners to submit architectural plans for review prior to building. The subjective review was to maintain a certain aesthetic standard and/or style for the development. There were also requirements such as minimum cost of construction of a new home, maximum height, number of structures per lot, property uses and so on. This resulted in a much richer variety in the architecture and a more visually appealing streetscape.