Subdivision Map

A legal document that divides a parcel of land into two or more lots, creating new legal parcels with their own boundaries, establishing public dedications, and recording easements.

What is a Subdivision Map?

A subdivision map is a legal document that divides a single parcel of land into two or more lots (or condominiums), creating new legal parcels that can be independently owned, financed, and developed. The subdivision process is governed by the Subdivision Map Act in California and by similar statutes in other states. Subdivisions require approval from the local planning authority and must be recorded with the county recorder.

Types of Subdivision Maps

The primary types are: parcel maps (for smaller subdivisions, typically four or fewer lots), tentative maps (the preliminary approval for larger subdivisions, establishing lot layout, access, utilities, and conditions), and final maps (the recorded document that legally creates the new lots after all tentative map conditions are satisfied). Condominium maps are also subdivision maps that create airspace lots within a building.

Subdivision Review

The subdivision review process evaluates lot design and configuration, access and circulation, utility availability and adequacy, drainage and grading, compliance with zoning standards, environmental impacts, school and park dedications, and infrastructure improvements. Tentative map approval is a discretionary action subject to environmental review and public hearings.

Subdivisions and Development

Subdivision maps are necessary for a wide range of development activities: creating individual lots for sale in a residential development, establishing separate parcels within a commercial center, enabling condominium sales in a multi-unit building, or dividing a large site into developable parcels. The subdivision process often runs in parallel with other entitlements.