Map Number Request

A map number is required prior to the submission of an application for a tentative tract map, parcel map, lot line adjustment, certificate of compliance (conditional or unconditional), voluntary merger, or public lot.

 

What is the process?

Step 1: Apply for a Map Number

Please apply for a map number through the online service PermitSLO.

  1. To apply online, click here and find Map Number
  2. Scroll down the page to find the map number application that you need. It will be one of the following:
    1. Certificate of Compliance Number
    2. Lot Line Adjustment Map Number
    3. Parcel Map Number
    4. Public Lot Number
    5. Tract Map Number
    6. Voluntary Merger Number
  3. Click the 'Apply' button next to the correct number 
  4. Follow the step-by-step instructions.

 

Step 2: Wait Until You See the Official Map Number

Wait a few minutes, and then refresh* your browser to see your official map number. MAP-000139-2022 is not your official map number. Your map number should be formatted as follows: 

TR [last two digits of the year]-XXXX (e.g. TR 22-0010).

  • NOTE: *To refresh your browser, right-click anywhere on the screen and click, .

Is there a charge for this service?

This service does not cost anything.

When and where is this service offered?

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

Location, directions and hours of operation

Click on location name to show hours of operation, directions and phone information

Monday - Friday 8:30 AM - 4:30 PM


976 Osos Street Room 200
San Luis Obispo, CA 93408

Tel: (805) 781-5600

Fax: (805) 781-1242

Permits/Inspections: (805) 788-6602