About Us

Responsible Land Use is a non-profit organization who was formed by Diamond Bar residents who were part of the Save Tres Hermanos Group.

We believe that a community's most precious asset is natural open space and that preserving our remaining natural open space makes economic and scientific sense, and it enhances Diamond Bar's and Chino Hills' quality of life.

Local elected officials and governmental agencies need to pay attention to the collective impact of individual projects. Responsible Land Use has the expertise to represent the public's interest and to provide constructive, realistic input to offset pressure from relentless development.