Additional Dwelling Units (ADUs) in Polson, Montana



Enhance Your Property Value and Flexibility Today

In recent years, Additional Dwelling Units (ADUs) have become a popular solution for homeowners seeking to maximize their property’s functionality and value. Whether you are looking to add a comfortable rental unit, create a private space for family members, or increase your home’s overall living area, ADUs offer a flexible, cost-effective alternative to moving or building larger primary residences. With 25 years of trusted experience in general contracting, Jennison Construction specializes in designing and building ADUs tailored to meet the unique needs of Polson’s residents and those in nearby communities such as Ronan, Charlo, and St. Ignatius.


As a growing trend in Montana real estate, ADUs provide a smart way to address housing demands while preserving the charm and character of local neighborhoods. Polson’s scenic beauty and proximity to Flathead Lake make it a desirable place to invest in smart home expansions. By adding an ADU, property owners can diversify their income streams through short-term rentals or long-term tenants while supporting multigenerational living, a key aspect of community values. Jennison Construction’s commitment to quality craftsmanship, local expertise, and personalized project management ensures every ADU we build enhances both lifestyle and property value.


Choosing an ADU means embracing a future-focused approach to homeownership in Polson and the surrounding area. Our team works closely with clients to navigate zoning requirements, design preferences, and sustainable building practices. If you’re ready to unlock your property’s full potential with a professionally built ADU, our expert contractors are here to guide you every step of the way.


Our ADU Services Offered

ADU Design and Planning

Our expert team collaborates with you to create ADU designs that align with your vision, budget, and local regulations in Polson, ensuring smooth permitting and efficient construction processes. We prioritize functionality, aesthetics, and compliance with zoning laws to deliver a design that enhances your property's value and meets your specific needs.

Custom ADU Construction

From foundation to finish, we manage all aspects of ADU building using high-quality materials and skilled craftsmanship tailored to withstand the climate. Our construction process emphasizes durability and energy efficiency, ensuring your ADU is built to last and provides a comfortable living space year-round.

ADU Remodeling and Conversions

We transform existing structures like garages or basements into fully functional ADUs, maximizing your property’s utility with minimal disruption. Our team assesses the potential of your current space and implements thoughtful renovations that adhere to local building codes and enhance the overall functionality of your home.

Permitting and Zoning Assistance

Navigating zoning and permitting requirements can be complex; our team provides expert guidance to ensure your ADU project complies with all local ordinances. We handle the paperwork and coordination with local authorities, streamlining the approval process and minimizing delays.

Energy-Efficient Building Solutions

Our ADUs are designed with sustainable building practices and energy-efficient systems, reducing long-term utility costs while promoting environmental stewardship. We incorporate features like high-performance insulation, energy-efficient windows, and renewable energy options to create a comfortable and eco-friendly living space.

Interior Finishing and Customization

We offer personalized interior finishes that reflect your style and maximize space functionality, delivering ADUs that feel like a natural extension of your home. From custom cabinetry to modern flooring options, we work with you to select materials and finishes that align with your aesthetic preferences and lifestyle needs.


Benefits of Building an ADU

Increased Property Value

Adding an ADU can significantly boost your home's overall market value by creating additional living space or rental potential. An ADU can make your property more attractive to potential buyers, offering them versatile living options. The presence of an ADU increases the square footage and enhances your property's functionality. This added value can be especially beneficial if you plan to sell in the future, as homes with ADUs often command higher prices in the market.

Additional Rental Income

An ADU provides an opportunity to generate steady rental income, helping to offset mortgage payments or supplement your household budget. With growing tourism and rental demand, an ADU can be a profitable investment. Renting out your ADU can offer financial flexibility, allowing you to invest in other areas or save for future endeavors. The income potential is substantial, whether it's a long-term tenant or a short-term vacation rental.

Flexible Living Options

ADUs offer versatile uses — from housing aging parents or adult children to creating a private workspace or guest suite. This flexibility is particularly valuable, as multi-generational living is common every day, and the need for home offices is rising. The adaptability of an ADU ensures that your investment remains relevant as your family's needs evolve. Whether for personal use or as a rental, an ADU can serve multiple purposes over time.

Efficient Use of Land

Building an ADU maximizes your existing property by utilizing unused backyard or side yard space without needing to buy more land. In Polson, where land can be scarce and expensive, this efficient use of space is invaluable. Instead of expanding outward, an ADU allows you to build upward or into underutilized areas, preserving open spaces and maintaining the character of your neighborhood.

Affordable Housing Solution

ADUs help address housing shortages by providing smaller, more affordable rental units in established neighborhoods. ADUs offer a practical solution for renters seeking quality living spaces. These units often come at a lower rental price point compared to traditional apartments, making them accessible to a broader range of individuals and families.

Increased Community Density Without Sprawl

ADUs enable gentle densification that supports walkable neighborhoods and reduces urban sprawl, benefiting the environment and infrastructure. ADUs offer a sustainable way to accommodate growth. Adding housing within existing areas, ADUs help maintain the community's character while supporting local businesses and reducing the need for extensive infrastructure development.

Unlock the Full Potential of Your Property with an ADU

Investing in an Additional Dwelling Unit is more than just adding space—it’s about creating lasting value and enhancing your lifestyle. With experience, Jennison Construction brings trusted expertise to every phase of the ADU process in Polson, Montana, and nearby regions, including Ronan, Charlo, and St. Ignatius, from initial design to final build. Our deep understanding of the local landscape, climate, and zoning laws allows us to tailor solutions that meet the specific needs of Montana homeowners.

Building an ADU with a professional contractor ensures your project is completed efficiently, on budget, and to the highest safety and quality standards. This investment offers flexibility for future family needs, rental income opportunities, and increased property equity—advantages that are especially meaningful in a dynamic housing market. If you are ready to expand your property’s potential and improve your quality of life, start your ADU project with experienced professionals who prioritize your goals and community values.

Frequently Asked Questions

  • What is an ADU?

    An Additional Dwelling Unit (ADU) is a secondary housing unit located on the same lot as a primary residence. It can be detached, attached, or converted from existing structures like garages or basements. ADUs are designed to provide independent living spaces with their own cooking, sleeping, and sanitation facilities.

  • Are ADUs allowed in Polson?

    Yes, ADUs are permitted under specific zoning regulations in Polson. The Polson Development Code provides guidelines for various zoning districts within the city. It's essential to consult the Polson Development Code and the Zoning Districts Map to understand the requirements and restrictions applicable to your property.

  • How long does it take to build an ADU?

    Typically, ADU construction ranges from 3 to 6 months, depending on design complexity, permitting timelines, and site conditions in the Polson area. Factors such as weather conditions and the availability of materials can also influence the construction timeline.

  • Can I rent out my ADU?

    Yes, renting your ADU as a long-term or short-term rental is allowed and can provide a valuable income stream, but you must adhere to local rental regulations. It's advisable to check with the City of Polson Planning Department for any specific requirements or restrictions.

  • What size can an ADU be in Polson?

    ADU size limits vary, but usually range between 400 to 1,200 square feet, depending on the property size and local zoning laws in Polson. It's essential to consult the Polson Development Code or the Zoning Districts Map for precise regulations.

  • How much does building an ADU cost in Polson?

    Costs vary based on size, design, and finishes, but typically range from $100,000 to $250,000. Working with an experienced contractor can help manage budgets effectively. Additionally, it's important to consider hidden costs such as permit fees, utility upgrades, and ongoing maintenance.

  • Do ADUs require separate utilities?

    Some ADUs have independent utility systems, but others share connections with the main home, depending on design and local utility regulations. It's crucial to consult with utility providers and local authorities to determine the best approach for your specific situation.

  • Can I convert my existing garage into an ADU?

    Yes, garage conversions are a popular and cost-effective ADU option. Professional contractors ensure the space meets all living and safety standards. It's important to assess the existing structure's suitability for conversion and obtain the necessary permits before proceeding.

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