Tentative Map

A preliminary subdivision map submitted for planning department review and approval that shows the proposed layout of lots, streets, utilities, and easements before the final map is recorded.

What is a Tentative Map?

A tentative map is the first step in the formal subdivision process for dividing land into five or more lots (in California; thresholds vary by state). It is a detailed plan showing the proposed lot layout, street design, utility infrastructure, grading, drainage, easements, and public dedications. The tentative map must be approved by the local planning authority before a final map can be recorded.

Tentative Map Contents

A tentative map typically includes: a boundary survey, proposed lot lines and dimensions, street and access road layouts, utility infrastructure plans, grading and drainage plans, easement locations, open space designations, tree preservation areas, and any required public dedications. Supporting studies such as traffic analyses, environmental documents, and utility capacity assessments may also be required.

Approval Process

Tentative map approval is a discretionary action, typically requiring staff review, environmental review under CEQA, public notice, and a hearing before the planning commission or advisory body. The approval is typically subject to conditions that must be satisfied before the final map can be recorded — such as construction of infrastructure improvements, dedication of rights-of-way, and payment of fees.

Tentative Map Expiration

Tentative map approvals are valid for a limited time (typically 2-3 years in California, with provisions for extensions). If the final map is not recorded before the tentative map expires, the approval lapses and the subdivision process must restart. Extensions may be available but are not guaranteed.