The purpose of this district is to provide for the development of small lot single-family dwellings and to preserve the character of existing small lot subdivisions in the city. This district represents a relatively high density for single-family development, thus dwellings in this district should be in close proximity to all city services and facilities, especially parks, schools and recreational facilities. Special attention should be given to landscaping and site development in this district. Special provisions of this district are designed to permit dwellings with no side yard to accommodate single family attached dwellings.