Accessory Dwelling Units

Accessory dwelling units — ADUs — have become one of the most discussed and most sought-after home improvement projects in St. George and across Washington County. The reasons aren't hard to understand. Southern Utah's housing demand continues to outpace supply, rental rates have remained strong, and the flexibility that an ADU provides — income-producing rental unit, independent living space for an aging parent, guest quarters, or future housing option for a family member — is hard to match with any other construction investment. Utah's ADU regulations have also evolved to make these units more feasible on more properties than was possible a few years ago. Valhalla Construction, LLC navigates the full ADU development process for St. George homeowners — from initial feasibility and design through permitting, construction, and certificate of occupancy.

ADU Types and Feasibility

Accessory dwelling units take several forms, and the right type for a given property depends on the lot's size and configuration, the existing home's placement on the lot, zoning allowances, and the homeowner's goals for the unit. Detached ADUs — separate structures built in the backyard — offer the most privacy and independence for both the main house occupants and the ADU residents, and are typically the most attractive option for rental income purposes. Attached ADUs are additions to the existing structure that create a separate living unit with its own entrance. Garage conversion ADUs repurpose an existing detached garage into habitable living space. Each type has different cost profiles, different permitting pathways, and different implications for the use and feel of the property. Valhalla Construction evaluates the feasibility of each option for a client's specific property and helps them understand the trade-offs before committing to a direction.

Design for Livability and Rental Appeal

An ADU that rents well and produces consistent income is one that has been thoughtfully designed for the experience of living in it — not just checked off as a code-compliant box. Efficient layouts that make small spaces feel larger. Full kitchen functionality that allows for genuine independent living. Quality finishes that attract and retain quality tenants. Private outdoor space where the lot allows. Adequate storage. Proper insulation and climate control for Southern Utah's hot summers. Valhalla Construction approaches ADU design with rental performance in mind, helping homeowners make the decisions that produce a unit that commands strong rental rates and stays occupied. In a market like St. George's, a well-designed ADU is a genuinely valuable asset.

Permitting and Construction

ADU permitting in St. George and Washington County involves building department review, utility connection approvals, and compliance with Utah's ADU regulations and local zoning requirements. Getting this process right from the beginning — with complete, accurate drawings and documentation — is what keeps an ADU project on schedule rather than stalled in plan check. Valhalla Construction handles the permitting process for every ADU we build, preparing and submitting the required documentation, responding to plan check comments, and managing the inspection schedule through to final certificate of occupancy. Our experience with the local permitting process means we know what reviewers are looking for and how to present projects in a way that moves through the process efficiently.

ADU Construction in St. George

Valhalla Construction, LLC has helped St. George homeowners add ADUs to their properties across a range of lot sizes, configurations, and unit types. If you're interested in adding an accessory dwelling unit to your property and want to understand what it would involve for your specific situation, give us a call. We'll walk you through the feasibility, the process, and what a realistic timeline looks like for your project.