City of Walnut Creek
Home MenuLot Line Adjustments and Mergers
A Lot Merger is the joining of two or more contiguous parcels under the same ownership into one resulting parcel.
These applications must comply with all City zoning requirements and the Walnut Creek Municipal Code including, but is not limited to, lot depth, width, area, and setbacks. These applications are processed and approved by City staff within the Engineering Division of the Public Works Department.
How to apply
Lot line adjustments and mergers can be applied for by email or in person.
1. Check setbacks
For lot line adjustments, the new lot lines need to meet required setbacks. The setback is the distance a building needs to be located away from the property lines. These distances are based on the zoning of your property.
2. Complete applications
Download and complete the Engineering Application and the Lot Line Adjustment/Merger Supplemental Application and gather required plans and documents listed in the supplemental application.
3. Submit applications and required documents
By email
Email completed Engineering Application and Lot Line Adjustment/Merger Supplemental Application and required documents listed in the supplemental application to DutyEngineer@walnut-creek.org. Send all documents as PDF files in one email and include the project address in the subject line. If the total combined documents exceed 25MB, upload the documents to the cloud (via Dropbox or Google Drive, for example) and provide a link to the files, in the email.
In advance of your appointment, email completed Engineering Application and Lot Line Adjustment/Merger Supplemental Application and required documents listed in the supplemental application to DutyEngineer@walnut-creek.org. Send all documents as PDF files in one email and include the project address in the subject line. If the total combined documents exceed 25MB, upload the documents to the cloud (via Dropbox or Google Drive, for example) and provide a link to the files, in the email.
PDF files can also be supplied during your appointment on a USB flash drive.
4. Engineering staff review and pay fees
Within five (5) business days of applying by email, you will be sent instructions on how to pay your plan check deposit fee by check or credit card. Learn more about fees. Engineering staff will coordinate review of the application with Building and Planning staff and City Surveyor, and provide comments, if any, within 30 business days.
5. Application approved
Once your application is approved, Engineering staff will contact you with next steps for your project.
Forms and documents
- Engineering Application
- Lot Line Adjustment/Merger Supplemental Application [PDF]
- Lot line and yard designations [PDF]
- Summary of Development Regulations
- Submittal List for Lot Line Adjustments (IB-024)
Related
Contact
Engineering Staff
Call (925) 943-5839
Email dutyengineer@walnut-creek.org