“Universal Design is the design and composition of an environment so that it can be accessed, understood and used to the greatest extent possible by all people regardless of their age, size, ability or disability. An environment (or any building, product, or service in that environment) should be designed to meet the needs of all people who wish to use it. This is not a special requirement, for the benefit of only a minority of the population. It is a fundamental condition of good design. If an environment is accessible, usable, convenient and a pleasure to use, everyone benefits. By considering the diverse needs and abilities of all throughout the design process, universal design creates products, services and environments that meet peoples’ needs. Simply put, universal design is good design” (from the Centre for Excellence in Universal Design) .
“UD is an increasingly important feature of nation states seeking to develop a fairer society for people unable to access and use, with ease, the designed environment. It is based on the premise that the design of products and environments ought to ‘be usable by all people, to the greatest extent possible, without the need for adaptation or specialized design’ (Mace, 1988: 1).” (From Universalising Design website which also has more information on homes.)