Expanding Affordable Housing Through Accessory Dwelling Units

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Nicole Clowney
Representative | Fayetteville, AR

Expanding Affordable Housing Through Accessory Dwelling Units

Idea Category: 2025 Ideas Challenge, Building & Development, Economic Opportunity & Affordability

2025 Ideas Challenge Entry

Many communities nationwide are facing an affordable housing crisis, with rapidly rising home costs making it difficult for families to find suitable housing. In some counties, home prices have surged dramatically over the past five years (65% in their community), further limiting options for middle- and lower-income households.

To address this, a practical and cost-effective solution is the use of Accessory Dwelling Units (ADUs)—small secondary housing units such as backyard cottages, converted garages, or nanny flats. ADUs allow homeowners to better utilize their property while increasing the supply of affordable housing options.

Many municipalities currently make ADU development difficult through excessive fees, long wait times, or restrictive regulations. To tackle these barriers, legislation was introduced and passed (HB1503, now Act 313), which:

Grants every landowner on a single-family lot the right to build one ADU.
Limits municipalities from imposing excessive impact fees or use permits.
Streamlines the development process and reduces bureaucratic obstacles.

ADUs benefit landowners by providing rental income or housing for family members. They are particularly appealing to older adults, who may downsize or host caretakers. Unlike large apartment complexes, ADUs are small, unobtrusive, and preserve the character of neighborhoods. They also make efficient use of existing infrastructure, minimizing the need for additional public spending on utilities and roads.

In short, ADUs increase housing supply, provide affordable rental options, generate income for homeowners, and maintain community character—all without substantial government investment. While not the sole solution to the housing shortage, ADUs are a practical, scalable step in the right direction.

Impact or how it will be measured:

Implementation will be monitored in partnership with the Municipal League, tracking the number of ADUs built and identifying obstacles municipalities face.