Building Permits
A building permit is a document issued by Fairfax County which legally authorizes construction activity.
Learn more:
To obtain a permit online, check the status of an existing permit or to schedule an inspection, visit FIDO (Fairfax Inspections Database Online). You may also visit our Online Building and Land Development Information page to find information on building and site-related activities.
Step 1: Planning Your Project
Project Types
- Residential Construction
- Commercial Construction
- Fuel Storage Tanks
- Land Use and Development
- Places of Worship and Non-profit Organizations
Regulations, Codes and Guidelines
- Accessibility Fundamentals
- Building Codes and Standards
- Code Interpretations, Modifications & Appeals
- Frequently Asked Questions
- Historic Preservation
- Local Design Load Criteria
- Universal Design
- Zoning Ordinance
Special Programs and Assistance
Hearings and Appeals
Step 2: Obtaining a Permit
Applying for Permits
- Apply Online
- Permit Process
- When a Permit is Required | FAQs
- Check Permit Status
- Annual Permit Program
- Forms
- Modified Processing
Paying Fees
- Permit Fee Estimate
- Permit Fee Schedule: Narrative | Fee Table
- Acceptable Forms of Payment
- Fire Prevention Code Permits and Fees
- Drainage Fixture Unit Table
- Wastewater Charges
Plan Review
Step 3: Inspections and Construction
Inspections
- Schedule Inspections Online
- Inspection Codes (for scheduling inspections by phone)
- Contact your Residential Inspector
- Special Inspections Program
- Fire Inspections and Acceptance Testing
- Third Party Inspections (commercial construction)
Construction
Post-Occupancy Concerns
Residential
- Blight
- Deck Safety / Deck Maintenance
- File a Complaint
- Hoarding
- Overcrowding / Boarding Houses
- Property Maintenance
Commercial


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