We are continuing to add more and more housing that excludes people with mobility limitations--an ever-growing segment of our community. Basic and minimal accessibility standards will create inordinate good. The concept of "visitability" recommends that there be one zero-step entrance, doors with 32 inches of clear passage space, and one bathroom on the main floor you can get into in a wheelchair. As the baby boomers age access will become increasingly important. We should incorporate these standards in all of our residential building. Some of the urgency of incorporating "visitability" is that California and Federal regulations have minimal impact on housing unlike commerce. More can be found at visitability.org.