Land Development
If you are applying for a discretionary permit (i.e. Subdivision, Land Use Permit, or Development Plan), there are many agencies whose requirements you must satisfy before final approval can be granted. In the case of the Public Works Department, these requirements are reflected in the Conditions of Approval and the Advisory Notes.
Your development permit may require submittal of improvement plans, Parcel or Final Map, or just condition of approval compliance review.
If your Conditions of Approval involve actual improvements to the road and drainage system (infrastructure), you will need to submit improvement plans to the Public Works Department for review and approval. Go to the "Improvement Plans" tab below for submittal requirements or obtain an "Information Packet" from the Engineering Services Division.
If you are applying for a subdivision, you will need to submit a Parcel or Final Map to the Public Works Department for review. Go to the "Subdivisions/Maps" tab below for more information.
General Information:
Improvement Plans
Following approval of the Tentative Map or Site Plan, the developer shall prepare construction plans for the improvements required by the Conditions of Approval, and submit to the Public Works Department for review. Typical improvements may include, access roads, storm drainage, cleanwater facilities, sidewalk, etc.
Refer to Chapter 96-2 of the County Ordinance Code for information on how to prepare your improvements plans.
Below is a list of documents and forms that will assist you in preparing your first submittal for the review of the Public Works Department.
- Improvement Plan Submittal Checklist (PDF)
- Improvement Plan Review Checklist (PDF)
- General Notes (PDF) (to include on the Improvement Plans)
- Unit Prices Guide (PDF) (for use in preparing Engineer's Estimate)
- Blueprint for a Clean Bay (PDF)
- Titles 9 and 10 of County Ordinance Code
- Processing Your Approved Permit (PDF)
- Your Development Project and the Public Works Department Part I (Application Phase) (PDF)
- Your Development Project and the Public Works Department Part II (Processing Phase - Condition of Compliance) (PDF)
- Public Works Conditions of Approval: What do they mean? (PDF)
- Floodplain Management Program: Answers to commonly asked questions (PDF)
- C.3 Guidebook (Cleanwater Facilities)
- Creek Structure Setback Requirements for Natural (unimproved) Channels (PDF)
Major Subdivision
A "Major Subdivision" refers to the division of any improved or unimproved land of five (5) or more lots, including condominium projects or community apartment projects (as defined in Section 1350 of the Civil Code and Section 11004 of the Business and Professions Code).
Minor Subdivision
A "Minor Subdivision" refers to a subdivision creating four (4) or fewer new lots.
Final / Parcel Map
Once you have received approval of your Tentative Map, you will need to submit a Final or Parcel Map for the review of the Public Works Department prior to approval by the County Board of Supervisors.
A Final Map is required for Major Subdivisions, and a Parcel Map is required for Minor Subdivisions.
Below are some helpful checklists and documents to assist you in preparing your first submittal to the Public Works Department for review of your Final or Parcel Map.
- Map Check List for Parcel or Final Maps (PDF)
- Map Check List for Record of Survey (PDF)
- Processing Guideline (PDF) (for Applicants Filing a Subdivision Final/Parcel Map)
- Refer to Chapter 94-4 of the County Ordinance Code for additional information on the form, content, and supplemental documents required for your Final/Parcel Map.
Contact Us
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Engineering Services
255 Glacier Drive
Martinez, CA 94553
Phone: (925) 313-2000
Fax: (925) 313-2333
Email