Tree Permits & ADU Siting in Sacramento

Accessory dwelling units, also known as ADUs, are an increasingly popular housing option for Sacramento property owners. From detached units to junior accessory dwelling units, these projects allow homeowners to create additional living space, provide rental opportunities, or support multigenerational living. But before an ADU application is approved, property owners must consider one important factor often overlooked in the planning stage: trees. The relationship between tree permits and ADU siting is critical in Sacramento, where trees are considered a community asset that must be protected during construction.

Why Tree Permits Matter for ADU Projects

Sacramento is known as the “City of Trees,” and the city has strict requirements in place to protect both public and private trees during building projects. When an ADU is proposed, property owners may need to obtain a tree permit if the project could affect the health, location, or view of existing trees. A tree permit may be required whether the plan calls for removing trees, altering their root zones, or placing new construction within a protected area. By law, the city must review tree impacts before an ADU permit can be issued.

Tree Permits in the ADU Application Process

The process of securing tree permits is integrated into the broader ADU permitting process. A typical ADU application must include a site plan that shows the location of trees on the lot and how the proposed ADU will sit in relation to them. Property owners are required to:

1. Submit a tree permit application along with their ADU application if trees are within the construction area.
2. Provide a tree report or letter prepared by an arborist, detailing the tree’s health, size, and whether removal or protection is necessary.
3. List all trees on the site plan and show root protection zones.
4. Present the form to the city’s urban forestry division for review.
5. Wait to be notified by the city if additional information, conditions, or adjustments to the project are required.
6. Obtain approval before the building permit for the ADU is issued.

Protecting Trees During ADU Construction

Tree permits are not just a bureaucratic step; they serve to protect the health and safety of trees that provide shade, improve air quality, and enhance neighborhood value. Property owners may be required to create protective barriers, prevent root zone disturbance, or adjust ADU siting to save important trees. In many cases, an ADU permitted on a property must be located in a portion of the lot that minimizes impact on existing trees. This can influence the location, footprint, and even the design of the ADU.

ADU Siting Requirements and Considerations

Siting an ADU means more than choosing a convenient location. Sacramento’s review process requires careful consideration of tree locations, setback requirements, and zoning. For example, an ADU on a multifamily lot may have different requirements than one on a single-family property. Junior accessory dwelling units, which are often carved out of existing homes, may avoid tree conflicts altogether, while detached ADUs may require tree permits if placed near root zones. Property owners should be prepared to adjust plans or move the unit’s location if trees cannot be removed.

Challenges Property Owners May Face

ADU projects that require tree removal or construction near protected trees can involve additional time and fees. If a tree is considered significant, removal may not be approved, forcing property owners to redesign their ADU plan. The application process may also require multiple rounds of review, especially if arborist reports or mitigation plans are needed. These steps are intended to prevent unnecessary loss of trees and to provide the city with assurance that development remains consistent with its general plan for tree protection.

Balancing Housing and Environmental Goals

Sacramento’s emphasis on tree protection reflects its commitment to balancing housing growth with environmental sustainability. While accessory dwelling units help address housing needs, the city ensures that projects do not sacrifice urban tree canopy in the process. Protecting trees during ADU construction supports long-term goals of providing shade, improving living conditions, and preserving the character of neighborhoods. Property owners who follow the process correctly help create housing while maintaining the benefits trees provide to residents.

Tips for Homeowners Starting an ADU Project

Property owners planning an ADU project in Sacramento should:

• Review applicable tree permit requirements early in the design phase.
• Create a detailed site plan that shows all trees and root protection zones.
• Contact the city’s tree services office for guidance before submitting an application.
• Request professional help from an arborist when tree health is in question.
• Provide complete documentation to avoid delays in review.
• Save time by integrating the tree permit request into the ADU application.

Tree Permits and ADU Siting in Sacramento Area

Tree permits and ADU siting are closely connected in Sacramento, where development must proceed responsibly to protect community assets. Property owners must account for trees in their ADU application, ensure proper siting of new units, and follow the review process before a building permit can be issued. By preparing early, providing the required documents, and making adjustments when necessary, Sacramento homeowners can save time, protect trees, and successfully complete ADU construction projects. A+ Construction & Remodeling assists property owners with ADU permitting, design, and construction, ensuring compliance with tree permit requirements while delivering high-quality living space. Serving Sacramento and surrounding areas, A+ helps homeowners create ADUs that balance housing goals with environmental responsibility.