A universal design bathroom incorporates and extends many of the features of an accessible design bathroom, but focuses on an aging, rather than disabled, user. Universal design relies on common sense, and strives to be user-friendly for anyone who uses the bathroom. Universal design principles focus on:

* Ease of use
* Easy access
* Adjustability
* Safety and stability

Ergonomic wing-blade faucet handles or motion-sensor taps, for example, aid those with arthritis who have difficult turning bathroom handles. A tub’s faucet set placed on the outer rim of the bathtub makes it easier to reach for someone who has difficulty bending or is prone to dizziness. Adjustable-height hand-held showerheads allow a custom shower for the tallest to the smallest. Built-in or installed seating in the bathtub or shower offer that option to those who cannot stand for extended periods. Grab bars placed strategically around the toilet and outside and inside the tub or shower not only help the frail and movement-impaired but also provide an extra measure of stability in the bathroom to children as well as able-bodied adults.

Other universal design bathroom safety features, such as anti-scald devices on all faucets, shatterproof materials, and slip-resistant flooring, make the bathroom safer for everyone.