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    10 Considerations for Adding an Accessory Dwelling Unit to Your Home

    During the past three to four years, many communities have adopted ordinances that allow additional structures on residential properties typically referred to as an Accessory Dwelling Unit or ADO. These backyard units, which are might also be called casitas, guest houses and mother-in-law units, can have electricity, full kitchens and baths, providing more space and convenience for homeowners and their families. 

    Are you considering an ADU on your property to support multiple generations living together? Before you get started, it’s very important to do your research or work with a qualified builder to ensure any structure complies with local regulations and codes as each municipality has its own set of rules. 

    Below are 10 key considerations as you explore your options for your new Accessory Dwelling Unit construction project. When you work with MCS, we can assist with most steps along the way. 
    1. Check Local Regulations: Contact the local Planning and Development Department for your community to understand the local zoning regulations and building codes for ADUs. 

      Confirm the size, height, setbacks and other specific requirements for ADUs in your area. 
    1. Permitting Process: Obtain the necessary permits before starting construction. This may include a building permit, electrical permit, plumbing permit, and others depending on your project. If you’re working with a contractor like MCS, they can help you with the proper permits. 
    1. Design and Planning: Create detailed plans for your ADU. Consider factors such as the layout, plumbing, electrical systems and any additional features. An experienced builder can provide you with insight and recommendations to help you navigate the design process, and help you save through proper planning. 

      Ensure that the design complies with the local regulations and zoning requirements. 
    1. Utilities and Services: Connect your ADU to existing utility services. This includes water, sewer, and electricity. Check with local utility providers for specific requirements. 
    1. Construction: For most people, it’s best to hire a licensed contractor like MCS to handle the entire construction process. If you or family decides to tackle the project, be sure that the construction adheres to the approved plans and local building codes. 
    1. Inspections: Schedule and pass inspections at various stages of construction with your local municipality. Inspections typically include foundation, framing, electrical, plumbing, and final inspection.
    1. Occupancy Permit: Once the construction is complete and passes all inspections, obtain an occupancy permit from the local authorities before anyone moves into the ADU.
    1. Landscaping and Exterior Finishing: Complete any landscaping or exterior finishing required by local regulations to ensure that the ADU complies with the overall aesthetic of your other dwelling and the neighborhood overall.
    1. Renting and Zoning Compliance: If you plan to rent out the ADU, ensure that you comply with local regulations regarding rental properties and zoning laws. For example, some municipalities do not allow short-term rentals of ADUs.
    1. Amenities and Accessibility: Based on how the ADU will be used, consider amenities such as parking spaces, separate entrances and landscaping.

      If the ADU is for older parents, make sure the property is age appropriate with safety and accessibility components. 

    Remember that regulations and procedures may vary, and it’s crucial to consult with local authorities and professionals throughout the process. It’s also recommended to work with experienced architects, contractors, and consultants who are familiar with ADU construction in your market to ensure a smooth process and compliance with all regulations.  

    To learn more about what it takes to add an ADU and make the most of your property., contact MCS by calling 1(888) 322-1477 or by emailing HomeEstimates@MCS360.com.