Multi-generational households and the growing preference on the part of many retirees toward "aging in place"have altered home design in recent years. Interiors are more open, more functional and more adaptable that they were even a decade ago. Spaces tend to be less formal; living space is better integrated with work space like the kitchen, and rooms tend to serve more than once purpose, both for quiet pursuits and for family gatherings. Universal Design Home design has gained a new dimension -- planning for the future and for a changing lifestyle. Universal design features and amenities that were once off the radar are now…