Lot Line Adjustment

What is the process?

Request Lot Line Adjustment Map Number

First, request a Lot Line Adjustment Number by:

  • Access  PermitSLO
  • Select "Apply" 
  • Select “Planning Applications” 
  • Find the "Lot Line Adjustment Map Number "
  • Select "Apply" 
  • Follow the online instructions.
  • A completed Map Number Request Form is required to be upload with the online application.
  • Wait 60 seconds, and refresh your browser.  Your map number should be formatted as follows: "M [last two digits of the year] = XXX" (e.g. M 21-0010).
  • Once you have the autogenerated Map Number, proceed to the next Step.

Obtain Application, Tentative Map, and Supporting Docs

Download a copy of the Land Division – Checklist & Application Package, and review the checklist on pages 1 - 3.  This checklist lists all documents needed to apply for a lot line adjustment.

*** Please ensure all documents reflect the map number issued in Step 1. ***

In the next step, you will be asked to submit the following:

  • Land Division Application Package - completed and signed
  • Preliminary Lot Line Adjustment Map
  • Title Report
  • Legal Lot Verification
  • Improvements Statement
  • Environmental Health Letter
  • Design Modifications/Road Exceptions
  • Abandoned Oil and Gas Wells Statement (if applicable) 
  • Any other supplemental information


NOTE: *** Please ensure all documents reflect the map number issued in Step 1. ***

Submit Application Package, Plans, and Supporting Docs

*** Please ensure all documents reflect the map number issued in Step 1. ***


Pay Fees

Planning staff will email invoice. Please pay online here*.

*Make sure to add INV to the invoice number (e.g. INV2020-01234), when searching for the invoice online.

Review by Staff

Department of Planning & Building staff reviews the application for consistency with applicable land use regulations and the California Environmental Quality Act (CEQA).

Schedule Hearing

Staff schedules the application for a public hearing - either Planning Department Hearing, Subdivision Review Board, or Planning Commission based on the subdivision entitlement type.

Reach Decision

During the public hearing, the hearing body considers the application and reaches a decision to either approve, conditionally approve, or deny the application.

Appeal Decision (Optional)

Any aggrieved person can appeal a decision to the Board of Supervisors. Projects located within the Coastal Zone can be appealed to (or by) the California Coastal Commission.

Record Subdivision

The applicant must record the approved subdivision within two years of its approval date.

Extend Approval (Optional)

The applicant may for a time extension to extend the approval date for one year. The maximum number of available time extensions is based on the subdivision entitlement type.

Who can use this service?

The owner of the subject property or anyone who is given consent by the owner of the subject property may use this service.

Is there a charge for this service?

Please refer to the Department of Planning & Building Fee Schedule for application fees.

When and where is this service offered?

This service is available throughout the year during regular business hours except during scheduled holidays.


Public Information and Permit Processing Online Services

Preview of Public Information and Permit Processing Online Services (CSS Portal)

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