Barrier Free ADU Design: Key Strategies

As the demand for Accessory Dwelling Units (ADUs) continues to rise, it's crucial to consider barrier-free design strategies that prioritize accessibility and inclusivity. Barrier-free design ensures that individuals of all ages and abilities can comfortably and safely navigate and utilize the space. Whether you're building an ADU for aging relatives, individuals with mobility challenges, for you to downsize as you get older, or simply to future-proof your property, incorporating inclusive design principles is a prudent and compassionate choice.

Key Design Considerations:

1. Entrance and Circulation

When designing a barrier-free ADU, it's essential to focus on creating smooth and unobstructed pathways. This includes wider doorways to accommodate wheelchairs and walkers, lever-style door handles for easy operation, and a step-less entry to eliminate potential tripping hazards. This includes considering the entire entry sequence from the sidewalk at the front of the property all the way back to the ADU location as well as access from any on-site parking area.

2. Open Floor Plans

Opting for an open floor plan facilitates seamless movement within the ADU. Spacious rooms and clear sightlines enhance accessibility, allowing for easy maneuvering and a sense of openness. We typically design open floor plans with large “great rooms” that combine the living, dining, and kitchen areas in our ADUs to make them as flexible as possible.

3. Kitchen and Bathroom Accessibility

In the kitchen, incorporating lower countertops (or even adjustable counters), pull-out shelves, and lever-handled faucets promotes independence for individuals with limited mobility. We have even selected touch free faucets in some of our designs to make them easier to use. Similarly, in the bathroom, roll-in showers, grab bars, and adjustable height features contribute to a more accessible and usable bathroom for all users regardless of any physical abilities or limitations.

4. Universal Design Elements for your ADU

Universal design principles, such as slip-resistant flooring, varied lighting options, lever style door handles, and strategically placed electrical outlets, can benefit occupants of all abilities. Prioritizing these elements ensures that the ADU remains practical and functional for everyone.

5. Outdoor Accessibility

Don't overlook the outdoor spaces. Accessible pathways, well-lit entrances, and outdoor gathering areas designed with inclusivity in mind contribute to an overall welcoming environment. This is especially important when you are designing thresholds for entry doors, sliding doors, and adjacent decks or patios. Consider details that allow for easy access for wheelchairs and other mobility devices.

6. Incorporating Technology

Embracing smart home technology can significantly enhance the accessibility of an ADU. From voice-activated controls for lighting and temperature adjustments to automated door openers, these innovations can greatly improve the quality of life for individuals with mobility challenges. Smart home technology is rapidly changing so work with your designer or builder to consider the latest options.


Legal and Regulatory Considerations

Before embarking on the construction of a barrier-free ADU, it's vital to familiarize oneself with local building codes and regulations related to accessibility standards. By ensuring compliance with relevant laws, you can guarantee that the ADU meets the necessary requirements for inclusivity. And some locations are giving incentives to encourage more accessible ADU projects so check with your local building department.


The Benefits of Barrier-Free ADU Design

By embracing barrier-free design strategies, you not only create a more welcoming living space for occupants with specific needs but also enhance the overall versatility and appeal of the ADU. Additionally, as the population continues to age, the demand for accessible living spaces is expected to grow, making barrier-free ADUs a wise investment for the future.

In conclusion, prioritizing barrier-free design strategies when planning and constructing an ADU is an investment in inclusivity, comfort, and long-term value. By embracing these principles, you can create a space that meets the diverse needs of its occupants and contributes to a more equitable and accessible living environment for all.


At Modern ADU Plans we aim to provide designs that can meet any needs wrapped in a beautiful modern look and feel. Many of our designs are barrier free already, and we can work with you to adapt the others to meet your needs. Please tell us about the design you are considering and let us know what your personal goals are for the project so we can discuss how we can make your favorite design suit your needs.

The accessible bathroom in our design for The Japandi ADU includes extra room in front of the sink and toilet to accommodate the turning radius of a wheelchair, a barrier free roll-in shower, a toilet paper holder that doubles as a grab bar, and a lower than normal sink.