Top 5 Zoning Considerations for Building an ADU

| Jan 13, 2024 min read

As a homeowner, the idea of building an accessory dwelling unit (ADU) on your property can be an exciting prospect. Whether it’s a laneway house, garden suite, coach house, or secondary suite, ADUs offer a range of benefits, from providing additional income to increasing the value of your property. However, before you jump into the construction process, it’s crucial to consider the zoning regulations that govern the building and use of ADUs. Here are the top 5 most important zoning considerations to keep in mind when thinking about building an ADU.

1. Understanding Zoning Regulations

Zoning regulations vary from city to city and even within different neighborhoods. It’s essential to familiarize yourself with the specific zoning laws that apply to your property. This includes understanding the permitted uses, building setbacks, height restrictions, and parking requirements for ADUs in your area.

Key Points to Consider:

  • Check with your local zoning department or planning commission to obtain the necessary information about zoning regulations.
  • Review the zoning code to understand the specific requirements and restrictions for building an ADU on your property.

2. Compliance with Building Codes

In addition to zoning regulations, you must ensure that your ADU complies with building codes and safety standards. Building codes govern the construction and design of structures to ensure they meet minimum safety and structural requirements.

Key Points to Consider:

  • Consult with a qualified architect or designer to create plans that adhere to building codes.
  • Obtain the necessary building permits from your local building department before starting construction.

3. Accessory Dwelling Unit Size and Design

Zoning regulations often dictate the maximum size and design requirements for ADUs. This includes restrictions on the number of bedrooms, total floor area, and architectural features such as roof pitch and materials.

Key Points to Consider:

  • Work with a professional designer or architect to create a design that meets the size and design requirements outlined in the zoning regulations.
  • Consider the layout and functionality of the ADU to ensure it meets your needs and complies with zoning regulations.

4. Consideration of Setback and Height Requirements

Setback and height requirements dictate how far an ADU must be from property lines and existing structures, as well as the maximum height allowed for the building.

Key Points to Consider:

  • Evaluate the setback and height requirements to determine the best location for your ADU on your property.
  • Be mindful of any additional restrictions, such as view corridors or historic district guidelines, that may impact the placement and height of your ADU.

5. Parking and Access

Many zoning regulations require that ADUs provide off-street parking for residents. It’s important to consider the impact of additional parking requirements on your property and explore alternatives, such as shared parking agreements or exemptions for properties located near public transportation.

Key Points to Consider:

  • Determine the parking requirements for your ADU and explore options for meeting these requirements, such as creating additional parking spaces or utilizing existing on-street parking.
  • Consider the impact of parking requirements on the overall design and layout of your property.

In conclusion, understanding and navigating zoning regulations is a crucial aspect of building an ADU on your property. By considering these top 5 zoning considerations, you can ensure that your ADU project complies with local regulations and meets your needs as a homeowner. Remember to consult with professionals, such as architects, designers, and zoning experts, to guide you through the process and make the most of your ADU project.

Now that you have a better understanding of the zoning considerations for building an ADU, it’s time to take the next step. Contact your local zoning department or planning commission to gather more information about the specific regulations that apply to your property. Additionally, consider consulting with a professional architect or designer to begin the process of creating plans that comply with zoning regulations and building codes.

Happy building!