"My clients know that many aging baby boomers won't end up in a wheelchair, but it doesn't mean that they won't need assistance at some point," says Kann. The design and build contractor first addressed the ease-of-use issues by making the hallways and doorways larger; doorways were reconfigured at 36 inches to allow clearance for any assistive devices. Having larger hallways and doorways also reduces accidents, which Kann points out could also benefit parents carrying babies and toddlers.Kann addressed the other issue of letting light into the first-level space by using multiple wide, narrow windows along the upper portion of the wall (this picture), installing a skylight over the staircase and using plenty of LED lights.