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+1 RI ADU Design Competition

Cropped +1RI ADU logo

 

The +1 RI ADU Design Competition, made possible by a $25,000 grant from the AARP Community Challenge, is creating practical, affordable, and ready-to-use accessory dwelling unit (ADU) designs to help make ADU development more accessible and efficient for homeowners in our state.

The Executive Office of Housing invites architects, designers, builders, contractors, and students to participate and develop ADU design concepts that support Rhode Island's Housing 2030 goals by creating adaptable, accessible, and affordable housing solutions that can be replicated in communities across the state. 

Click here to download the +1RI ADU Design Competition Project Manual with information on application guidelines, eligibility, and competition details.

Applications for this competition are now closed! Click here to sign-up for program updates and announcements, including winning design selections, details about the competition awards ceremony, and more!

About the Competition

The +1 RI ADU Design Competition is guided by five key goals: creating a menu of ready-to-use design plans; developing designs that are adaptable and accessible; ensuring cost-effective solutions; streamlining the permitting and approval process; and strengthening communities across Rhode Island. 

Click here for a closer look into the five goals. 

Eligible participants for the +1 RI ADU Design Competition include architects, designers, builders, contractors, and students. 

Eligible participants can participate as individuals or teams of up to five members. 

Professional participants must be licensed or registered in the State of Rhode Island or actively work under the supervision of a licensed or registered architect or licensed or registered contractor who can ensure compliance with all applicable state and local building, life safety, and accessibility codes.

Student submissions are welcome but must include a licensed or registered professional team member or mentor who will review and endorse the final submission, ensuring compliance with all applicable state and local building, life safety, and accessibility codes.

A jury comprised of architects, builders, and advocates will evaluate designs and deliberate based on the scoring criteria. Awards will be given to the top overall 1st, 2nd, and 3rd place winners. 

1st place - $10,000

2nd place - $6,000

3rd place - $4,000

Additional awards will be given to two design submissions that demonstrate exceptional consideration for the special conditions of accessibility and innovation in ADU design.  

Best Accessible ADU - $3,000

Most Innovative ADU - $2,000

August 11, 2026: Application portal officially opens at 8:30 AM.

August 12, 2026: Optional Info Session from 1:00 PM - 1:30 PM. Register using the link below.

Registration Link: https://us02web.zoom.us/j/81946848763?pwd=kmBubGjsahJ2nSEzsvKdyLDC42RYp0.1

September 9, 2026: Optional Q&A Session from 11:000 AM - 11:30 AM. 

Registration Link: https://us02web.zoom.us/meeting/register/LFyACr-MSeuLfOh6IJUKqA#/registration 

October 23, 2026: Submission Deadline. Application portal to close at 11:59 PM. 

November 30, 2026: Notification of decisions to applicants.

December: Awards ceremony.

For more information on application guidelines and requirements, please download the +1 RI ADU Design Competition Project Manual.

Kyle Barker, AIA, NCARB, Primary Projects, Founder, Harvard Graduate School of Design, Design Critic in Architecture

Kyle Barker Headshot

Kyle Barker, AIA, NCARB, is the founder of Primary Projects, an architecture firm dedicated to more sustainable, affordable, and communal design. He’s interested in diversifying housing models, reducing embodied carbon, and communicating clearly. 

Kyle is a Design Critic in Architecture at the Harvard Graduate School of Design and has taught housing studios, seminars, and workshops at RISD, Northeastern, and MIT. He is the author of the Communal Housing Design Guidelines, a book collecting his Rotch Scholar research, during which he traveled across Europe, Australia, and Japan to study collective housing models. In 2023, he received the Boston Society for Architecture’s (BSA) Earl R. Flansburgh Young Designers Award. He holds an MArch from MIT, a BSID from the University of Cincinnati, and is licensed in Massachusetts, New York, Maine, and Michigan. 
 
Outside of practice, he serves as the Board Secretary for the Boston Society of Architects, a member of the Design Advisory Council for the National Cohousing Alliance, the Secretary of the Rotch Traveling Scholarship Committee, and a design mentor for the Greater Boston Affordable Housing Design Competition. 

Anthony A’Vant, Assistant Director of Design and Construction, RIHousing

Anthony A’Vant Headshot

Anthony A’Vant has served as RIHousing’s Assistant Director of Design and Construction since 2015. He joined RIHousing in 1992 as a Design and Construction Specialist and later served as Design and Construction Manager. 

Throughout his career with RIHousing, Mr. A’Vant has been instrumental in all aspects of construction and design, from a project’s start to finish. He ensures that all construction guidelines and procedures comply with agency, local, state, and federal policies and has received extensive training and certifications in construction-related best practices. 

As Assistant Director of Design and Construction, Mr. A’Vant oversees approximately $1 billion in construction contracts for RIHousing. He also leads the agency’s efforts to promote energy efficiency and sustainable building practices in funded developments, recognizing that energy-efficient housing can make homes more affordable. 

Mr. A’Vant holds a bachelor’s degree in economics from the University of Rhode Island.

Amanda Eggers, AIA, IIDA, Studio Operations Director, Ezra Lee Design + Build

Amanda Eggers Headshot

As Studio Operations Director at Ezra Lee Design + Build, Amanda oversees project operations while contributing to the design and delivery of custom residences. Licensed across the Mountain West, Southwest, and Texas, and a Registered Interior Designer, she brings a multidisciplinary background in architecture, interior design, and project leadership, with experience spanning single-family residential, multifamily housing, commercial, and mixed-use projects. 

Prior to joining Ezra Lee, Amanda practiced architecture in New York City, where she worked with institutional clients and led complex projects requiring close coordination among owners, public agencies, consultants, and diverse stakeholder groups. Her experience includes education, justice, and civic projects, as well as multifamily and mixed-use development in Texas. Working across both institutional and residential environments has shaped her approach to design as both highly personal and highly practical, with an emphasis on thoughtful planning, durable details, and spaces that respond to the way people actually live. 

At Ezra Lee, Amanda brings this perspective to residential design, combining technical rigor and project leadership with a collaborative, client-focused process from concept through construction. 

Amanda holds a bachelor’s degree in architecture and a bachelor’s degree in interior architecture from Auburn University, as well as an MPA from Baruch College. 

Kevin Marblestone, AIA, Architect, Ruhl | Jahnes Architects

Kevin Marblestone Headshot

Kevin Marblestone is an architect at Ruhl | Jahnes Architects and specializes in custom residential design. His work focuses on creating thoughtful, highly functional homes that respond closely to the needs of their occupants, with particular interests in accessibility, adaptability, and long-term livability. 

Licensed in Massachusetts, Kevin has worked on residential projects ranging from renovations to new construction, navigating the technical, regulatory, and construction challenges inherent to residential design across New England. His approach combines careful planning with an interest in finding practical, cost-conscious ways to deliver high-quality design. 

Kevin has a particular interest in accessory dwelling units and the role they can play in expanding housing options while allowing people to remain connected to their families and communities. His work specifically explores how principles of universal design can be integrated into residential architecture without sacrificing character or design ambition. Kevin and his team at Ruhl | Jahnes were recently recognized with the “Exceptional Accessible Design” award for their entry in the Massachusetts ADU Design Challenge. 

Kevin holds a Master of Architecture from the Massachusetts Institute of Technology, and a Bachelor of Design from the University of Florida. 

Emilee Wilson Hamm, AIA, LFA, Senior Associate, Hastings Architecture

Emilee Wilson Hamm Headshot

Emilee Wilson Hamm is a Senior Associate and project manager at Hastings Architecture, where she has overseen some of the firm’s largest and most impactful civic projects. She brings extensive experience in the design and construction of these complex projects, as well as a track record of successful collaboration with multiple city and community organizations. Among her most notable are the 24,000-square-foot Donelson branch of the Metro Nashville Public Library; Peabody Plaza, which transformed a surface parking lot into a pocket park and 290,000 square feet of office space; and the Asurion Gulch Hub, a 550,000-square-foot, mixed-use complex that includes a new greenway link to the North Gulch area.

Prior to practicing architecture, she ran a critical home repair program with Habitat for Humanity of Castle Country, Utah. Since returning to her home state of Tennessee, she has served on the Nashville Promise Zone Affordable Housing Committee, conducted a research grant examining affordable-housing policies and housing typologies from across the country, and chaired the Affordable Housing Committee for Edgehill Neighborhood Partnership. She has led panels on the topic for AIA TN Conference on Architecture and the Appalachian Studies Conference.

Emilee is a LEED Green Associate and Living Future Accredited through the International Living Future Institute. She holds a Bachelor of Architecture from the University of Tennessee College of Architecture + Design. 

A Q&A session was held on September 9, 2026. Click here to view the document summarizing the questions asked and the responses provided during the session.

Get to Know ADUs!

Explore the drop-down menus below to learn the answers to five frequently asked questions about ADUs.

An Accessory Dwelling Unit (ADU) is a smaller, independent home located on the same property as an existing single-family or multifamily residence.

ADUs include everything needed for daily living—sleeping, cooking, eating, and sanitation—with a separate entrance for privacy and independence.

ADUs can take many forms, including:

  • A detached backyard cottage
  • A converted garage or accessory structure
  • An addition to an existing home
  • A finished basement or other space within the primary residence

A dwelling unit is a space designed for independent living that includes:

  • Living and sleeping areas
  • A kitchen or cooking facilities
  • A bathroom
  • A separate entrance and exit

Under Rhode Island law, municipalities may set maximum ADU sizes, but they must allow:

  • Studios or one-bedroom ADUs: up to 900 square feet, or 60% of the primary home's floor area—whichever is less
  • Two-bedroom ADUs: up to 1,200 square feet, or 60% of the primary home's floor area—whichever is less

ADUs by right may be permitted when they are:

  • Located within an existing home or accessory structure without expanding the footprint*
  • Built on residential lots of at least 20,000 square feet*
  • Created as a reasonable accommodation for family members with disabilities on owner-occupied properties*

*Local ordinances may differ from state law.

ADUs are not limited to family members, older adults, people with disabilities, or households with low-incomes. 

However, ADUs cannot be used as short-term rentals.

Rhode Island law establishes statewide standards for ADUs. Municipal zoning and building regulations may apply, but local requirements cannot conflict with state law.

See the link below for the Rhode Island law on ADUs: 

webserver.rilegislature.gov/Statutes/TITLE45/45-24/45-24-37.HTM

AARP Community Challenge