When Iris Harrell and Ann Benson decided to remodel and expand their 22-year-old San Mateo County home, they had two goals: The project had to be as environmentally sound as possible, and the design had to meet their needs for today and in the future.

The finished project abounds with green qualities and universal design features to accommodate old and young, people with disabilities or without. Most prominent are the 54 rooftop solar panels that supply 90 percent of the home’s electrical load, the ramp to the front door and the interior elevator that’s big enough for a wheelchair.

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