Land Development Services

CONTACT INFORMATION: Monday through Thursday, 8 a.m. - 4 p.m. and Friday, 9:15 a.m. - 4 p.m. Please note that visitors may not be added to in-person queues past 3:45 p.m.
703-222-0801 TTY 711
12055 Government Center Pkwy
Fairfax, VA 22035
Bill Hicks

Public Improvement Plan (PI)

A public improvement plan is required when construction of sanitary sewers, public water, storm drainage, public roads or other public improvements are required as part of a project that does not require a site plan or subdivision plan.

This information is the most common for how to obtain the necessary approval for your project and is not representative of all the conditions you may encounter.



Homeowners or their duly authorized agents may submit public improvement plans, however, the plan itself must be certified by a professional engineer, land surveyor, architect or landscape architect licensed by the Commonwealth of Virginia and meeting the respective code requirements.



Before submitting, ensure you are aware of all applicable regulations and conditions that could affect your project to avoid surprises during the review process. Some of those factors include:

  • Zoning Information
  • Design Codes and Standards
  • Do I Need to Hire a Design Professional?
  • Floodplains
  • Resource Protection Areas (RPA)
  • Grading/Site Plans
  • Parking Tabulation
  • Types of Soils and Problem Soils
  • Researching Site Conditions

To get a detailed description about each regulation and condition, visit our Plan Ahead page.



PLUS Application

Apply for your public improvement plan online in PLUS under the Site tab. If you are a first-time user, you must first register for an account.

application tab


Submission Guidelines

Visit our Site-Related Submission Guidelines page for information on how to submit your plan, including strongly encouraged naming conventions.


Tutorial on Uploading Plans and Documents in PLUS

Helpful Instruction Guide:




Depending on the scope of your project, one or more of the following may be required:

First Submissions:



Subsequent Submissions:

  • Digital signature – verifiable digital signature of the licensed design professional
  • DPE signature (if submitted as a DPE plan for expedited processing)
  • ESI Resubmission Checklist (with professional signature/seal)
  • Applicant Responses – enter responses to all open issues in the PLUS Digital Plan Room
  • ESI Resubmission Checklist (with professional signature/seal)
  • Review fee

Helpful Videos:

red arrow in gray box Reviewing Issues, Conditions, & Notes in PLUS - YouTube

red arrow in gray box Upload Corrected Plans in PLUS - YouTube

Helpful Instruction Guides:


Revisions to previously approved plans (per the PFM):

  • Digital signature – verifiable digital signature of the licensed design professional
  • Revision narrative – separate letter detailing the revision and referencing its general location. Narrative should be uploaded to the Digital Plan Room via PLUS, under the “plans” document type.
  • Revision block - updated revision block incorporated as part of the plan or profile sheet
  • Bond Block – if increasing, the Surety Value Estimate Sheet needs to be resubmitted
  • Certification of No Change – certification that no other changes have been made to the plan or profile except those previously approved.
  • Changes circled in red
  • Review fee

Helpful Videos:

red arrow in gray box Submitting Revisions in PLUS - YouTube

Helpful Instruction Guides:


What's Next?

To get a step-by-step guide on PLUS statuses and what they mean, see our What is My PLUS Status? Site Plans Infographic.


Review Process

Staff from the Site Application Center, Minimum Submission Review team, Health Department (if on well or septic), and Site Development and Inspections Division will review your package for completeness and compliance with applicable codes and county ordinances. You will be notified of any deficiencies. Plan corrections, resubmission fees and additional supporting documents may be required.

For a detailed summary of application progress, to include the name(s) of assigned review staff, click on “Reports” in the top-right corner of the PLUS screen, when you are in a specific record, and select “Workflow Routing Slip Report.”

workflow routing slip


Plan and Permit Issuance

Once all reviews are approved, fees have been paid and all associated post-approval conditions have been satisfied, your land disturbance permit and approved plans will be available to download from PLUS.

Visit the  Meeting Approval Condition web page to learn more about your plans specific approval conditions, including where to locate them in PLUS and to get the appropriate form for each condition. Once completed, submit all required documents using this form.


Helpful Video:

red arrow in gray box Access Approved Plans in PLUS - YouTube Video


Site Inspections

Before beginning any land disturbing activities associated with your approved site/grading plan and land disturbance permit, you are required to request a pre-construction meeting. Before requesting your pre-construction meeting, certain items must be completed such as an approved Virginia 811 ticket. To review all required items, visit the Site Inspection page.


As-built Plan Coordination

As-built plans are separately submitted via PLUS under your original plan record, using “make changes.” As-built plans are approved by the county prior to final bond release for site plan, subdivision and public improvement projects. For submission details, to include screenshots and how to update contact information, visit the As-built Plan Coordination page.


Conservation/Bond Release

The release of the associated conservation deposit is coordinated with your site inspector upon project completion. The assigned site inspector will notify Bonds and Agreements staff to initiate the conservation escrow release process. For process details, click the below graphic. For any process-related questions, please contact the Bonds and Agreements Center via email or phone at 703-222-0801, TTY 711.

escrow release process chart
Click image for larger view

Additional Resources


Need More Assistance?

For questions or additional information, please visit the Site Application Center website or via telephone at 703-222-0801, TTY 711.


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