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When a permit is required
Permit triggers and exempt work for Herndon
Required for constructing, enlarging, altering, or demolishing a building or structure and for installing or altering regulated equipment; town guidance specifically calls out additions, alterations, decks, garages, retaining walls over 3 feet, sheds over 256 square feet or more than one story, and separate electrical, plumbing, or mechanical changes.
Note: No consolidated public exemption list was found on the reviewed town Building Inspections pages. Applicants should confirm any claimed exemption directly with Building Inspections before starting work
- Permit application
- Plans
- Permit-specific forms
- All applications and plans must be submitted by email
- Building code
- Town code page references Virginia versions of the building codes and lists the 2021 International Energy Conservation Code among adopted code materials.
- Permit validity
- No public-facing town summary of permit expiration was found in the reviewed pages.
- Owner-builder
- No clear owner-builder summary was found on the reviewed public pages.
- Contractor requirements
- Virginia state contractor licensing applies; town page states a permit will only be issued to a tradesman if the contract total is under $1,000. A Town of Herndon business license is required when the total cost of work in town exceeds $25,000 in a calendar year.
Application process
Typical processing: No general permit-review turnaround estimate was posted on the reviewed public Building Inspections pages.
- 01 Confirm permit need under the Virginia USBC and the town's Building Inspections guidance.
- 02 Ensure contractor finance prerequisites are satisfied, including town business-license requirements if the work threshold is met.
- 03 Email all applications and plans to buildinginspections@herndon-va.gov.
- 04 Obtain any required outside approvals, including Fairfax County Fire Marshal approval where applicable.
- 05 Receive review comments and town approval, then pay assessed fees and proceed to inspections.
Typical processing time: No general permit-review turnaround estimate was posted on the reviewed public Building Inspections pages.
Fee schedule
Herndon building permit fees
Public-facing summary pages reviewed did not clearly describe online payment mechanics.
Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.
Required inspections
Scheduling and sequence
- buildinginspections@herndon-va.gov (email)
- 703-435-6850 (phone)
- Scheduling deadline
- Requests must be made 1 business day in advance
- Inspection hours
- 8:00 a.m. to 4:30 p.m.; inspections run 9:00 a.m. to 4:00 p.m.
- Time windows
- AM: 9:00 a.m. to 12:00 p.m.; PM: 1:00 p.m. to 4:00 p.m.
Typical sequence: Applicants must identify permit number, permit type, inspection type such as close-in or final, and whether inspection is in person or virtual.
Virtual inspections available
Frequently asked
Common questions about Herndon permits
01 Do I need a building permit in Herndon, VA? ▸
02 How much does a building permit cost in Herndon, VA? ▸
03 How do I apply for a building permit in Herndon, VA? ▸
04 How long does it take to get a building permit in Herndon, VA? ▸
05 How do I schedule a building inspection in Herndon, VA? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Building Inspections, Department of Public Works before applying. Jaspector is not legal advice.