High-tech elderly and disability housing in the real world; namely McKeesport, Pennsylvania:
McKeesport is the home of Blue Roof Technologies. http://www.bluerooftechnologies.com/
Yes, it is wheelchair accessible.
This is a floor plan of the inside. I have driven my scooter through all of it, so I know it exists. I also know that right now there is an elderly individual living in a cottage of this design and more cottages are becoming available for residence as I key in these words.
Sensors command that 911 be called automatically if a resident falls. The apartment reminds (the apartment reminds? here walls talk) the resident when to take medication.