Accessory Dwelling Units (ADUs) in Weber County, Utah: What Homeowners Should Know

Accessory Dwelling Units—commonly known as ADUs or “mother-in-law apartments”—are gaining popularity across Utah, especially in Weber County. As housing affordability becomes a growing concern, more homeowners are looking for creative ways to maximize property value, create flexible living arrangements, and generate rental income.

In this post, we’ll break down what ADUs are, why Weber County residents are considering them, and the specific regulations you need to know before adding one to your property.

What Is an ADU?

An ADU is a secondary housing unit built on the same lot as a primary residence. These can take several forms:

• Basement apartment conversions

• Detached backyard cottages

• Garage apartments

• Attached additions with separate entrances

ADUs are popular because they provide affordable housing solutions while allowing homeowners to keep their property in single-family zones.

Why ADUs Are Gaining Popularity in Weber County

Weber County, home to cities like Ogden, North Ogden, Pleasant View, Huntsville, and Eden, has seen a surge of interest in ADUs for several reasons:

1. Rental Income Potential – With Weber State University students, Hill Air Force Base employees, and outdoor enthusiasts flocking to Ogden Valley, rental demand is strong. An ADU can help offset a mortgage.

2. Housing Affordability – As home prices rise in Northern Utah, ADUs offer a way for families to house relatives affordably or provide low-cost rentals.

3. Generational Living – More families are opting for multi-generational living, and ADUs provide privacy while keeping loved ones close.

4. Flexibility – ADUs can serve as home offices, short-term rentals, or guest suites—especially appealing in areas like Ogden Valley near Snowbasin and Powder Mountain.

ADU Regulations in Weber County

Rules for ADUs vary between cities and unincorporated Weber County. Here are some key guidelines to be aware of:

• Owner-Occupancy Requirement: Many Weber County municipalities require the property owner to live in either the primary home or the ADU.

• Parking Standards: Extra off-street parking is usually required, especially in Ogden City.

• Size Limits: ADUs are often restricted to a percentage of the main home’s square footage (commonly around 40–50%) or capped at a set size (for example, 800–1,000 sq. ft.).

• Zoning Restrictions: Some neighborhoods allow detached ADUs, while others only permit internal conversions.

• Permits & Inspections: Building permits and city inspections are mandatory. ADUs must comply with safety, fire, and utility standards.

Each city in Weber County—such as Ogden, North Ogden, Pleasant View, and Harrisville—has slightly different ADU ordinances. Always check with your local planning department before beginning construction.

ADUs and Short-Term Rentals in Weber County

Vacation rentals are popular in places like Eden and Huntsville, near Pineview Reservoir and Snowbasin. While an ADU can be used as a short-term rental, regulations vary. Ogden City, for example, has stricter short-term rental rules compared to rural Ogden Valley. Compliance with licensing and tax requirements is essential if you plan to operate your ADU as an Airbnb or VRBO.

Financial Benefits of Adding an ADU

• Increased Property Value – Homes with income potential often appraise higher.

• Mortgage Relief – Rent from an ADU can cover a significant portion of monthly payments.

• Tax Advantages – Some expenses related to ADUs may qualify as deductions if used as rentals (consult a tax professional).

Is an ADU Right for Your Weber County Property?

Adding an ADU is not a small project, but for many Weber County homeowners, it’s a smart investment. Whether you want to keep aging parents nearby, earn passive rental income, or add long-term value to your property, ADUs are worth considering.

If you’re thinking about building an ADU in Weber County, your first step should be researching your city’s zoning rules. From there, consult a builder experienced with ADUs in Northern Utah to ensure your project is designed and permitted correctly.

ADUs in Weber County provide flexible housing solutions and investment potential, but local zoning laws differ between cities. Be sure to your homework before breaking ground.