Things To Consider When Building An Accessory Dwelling Unit (ADU)
Key Regulations and Requirements You Need To Know Before Designing An ADU.
As housing costs continue to rise, building an Accessory Dwelling Unit (ADU) has become a popular option for homeowners. ADUs, also known as "granny flats" or "in-law suites", are secondary housing units that can be built on existing residential properties. They offer a solution to the affordable housing crisis and provide additional income opportunities for homeowners.
From attached ADUs to detached backyard cottages, there are various types of ADUs that can be built. However, before jumping into the design process, it's important to understand the key regulations and requirements for building an ADU. Here are the top considerations;
ADU zoning requirements.
Understanding local zoning laws is important. Many cities and municipalities have specific regulations regarding the placement, and use of ADUs. Some may only allow ADUs on certain types of properties or have minimum lot size requirements. It's crucial to check with your local zoning department for the following;
Check your local zoning ordinances to ensure ADUs are allowed in your area. There are often restrictions on ADU size, height, setbacks, and maximum occupancy.
Apply for proper building permits. Work closely with your local permitting office to ensure your ADU plans meet all requirements.
If your property has homeowners association (HOA) rules, check for any restrictions or approval processes for ADUs. Get HOA approval before starting your project.
In Spokane where ADU permit issuance is high, some regulations around ADUs may change after construction. It's important to keep up with any updates and changes in zoning requirements.
ADU building codes and permits.
After zoning regulations and requirements, understanding building codes and obtaining necessary permits is crucial. Building codes are regulations that govern the design, construction, and materials used in buildings to ensure safety, accessibility, and energy efficiency. It's important to work with a professional ADU builder in Spokane who has experience working with ADUs and is familiar with local building codes. Here are the top considerations;
Decide on an ADU layout and size that works for your needs while fitting within local zoning rules. Consider the number of bedrooms, bathrooms, and amenity spaces needed.
ADU designs can be detached (separate structure), attached to the main house, or converted from existing structures like garages or basements. Choose an option that works best on your property.
Ensure the design properly separates the ADU from the main residence for legal rental purposes. This usually includes a separate outdoor entrance.
Design for accessibility if needed, including zero-step entrances, wide doorways, and lever-style handles. This opens up housing options for people with disabilities.
With these regulations, you still have limitations on the size of your Accessory Dwelling unit. The size of your property will determine the maximum size for your ADU. In most cases, the maximum size for an ADU ranges from 300-800 square feet. However, this can vary depending on your specific location and zoning laws.
ADU construction and permits.
Accessory Dwelling Units come in various shapes and sizes, from detached structures to converted garages or basements. Consider the intended use of your ADU and design accordingly. Factors such as layout, natural light, privacy, and aesthetics should align with your goals and preferences. When designing an ADU in Spokane, WA, think about the following;
Hire a qualified architect and general contractor experienced in ADU construction and permitting. This helps ensure a smooth project from start to finish.
Your ADU must meet all local building codes and electrical, plumbing, and fire safety requirements. Work closely with your Spokane ADU builder and permit office to meet standards. You might need to bring in an engineer to help address specific issues.
Prepare for required inspections by the local building department at various stages of construction to ensure code compliance. This ensures that your ADU is safe and up to code.
With the right ADU construction regulation and permitting, you can ensure the quality, safety, and value of your ADU. This way, you will have an easy time during the design process.
ADU sustainability and energy-efficiency.
This is a crucial step in designing your ADU. With energy costs on the rise, it's important to think about the sustainability and energy-efficiency of your ADU. The right additions will minimize environmental impact and also save on energy costs. Here are some tips to consider;
Add insulation, energy efficient windows, and LED light fixtures during construction. This is a creative and affordable way to improve sustainability and reduce the ADU's energy use and costs.
Consider renewable energy sources like solar panels or other renewable energy options to power your ADU if permitted in your area. This saves money and is eco-friendly.
Use eco-friendly materials such as bamboo flooring, recycled glass countertops, or low VOC paints. These options are environmentally friendly, durable, and cost-effective.
Incorporate sustainable building materials and construction practices from the beginning to reduce waste and environmental impact.
By considering energy-efficiency during the design process, you can save money on utility bills while also contributing to a greener future. ADUs offer a unique opportunity to incorporate sustainable features into your property and make a positive impact on the environment.
Financial considerations and rental requirements.
Building an ADU involves upfront costs, including construction expenses, permits, and utility connections. Evaluate the financial feasibility of your project by considering potential rental income, property value appreciation, tax implications, and financing options such as loans or grants.
If you plan to rent out your ADU, familiarize yourself with local rental regulations, including tenant rights, lease agreements, rent control ordinances, and landlord responsibilities. Compliance with housing laws is essential to avoid legal issues and maintain positive landlord-tenant relationships.
A leading ADU builder in Spokane, WA.
With proper planning and adherence to regulations, you can successfully build an ADU that meets your needs and contributes positively to the housing crisis. It's important to keep up with any changes or updates in zoning laws and building codes even after construction is complete. By staying informed, you can ensure that your ADU remains up to code and a valuable addition to your property.
At Integrity Remodeling Inc., we are a leading contractor for ADU building in Spokane, WA. We can make the process smoother and ensure the quality and safety of your ADU. Let's work together to create a functional, sustainable, and legal ADU for you and your community. Contact us today to discuss your options and get started on your ADU project.