The purpose of the residential districts in the zoning regulations is to achieve the following:

1. To reserve appropriately located areas for residential living at a range of population densities consistent with the General Plan and with sound standards of public health, safety and general welfare;
2. To ensure adequate light, air, privacy, and open space for each dwelling;
3. To provide space for public and semi-public uses needed to complement residential areas and for institutions that require a residential environment;
4. To minimize adverse effects on the city's infrastructure by preventing the construction of buildings of excessive size in relation to the surrounding environment;
5. To prevent the construction of buildings which are out of character with the surrounding environment;
6. To provide necessary space for off-street parking of automobiles and other vehicles, and, where appropriate, for off-street loading of trucks and trailers;
7. To safeguard homes from the negative externalities created by non-compatible land uses.
8. To facilitate the provision of utility services and other public facilities commensurate with anticipated population densities and service requirements.
9. To permit land uses and appurtenant facilities which are compatible with each residential land use category.
10. To inspire quality site planning and environmental design.