Plumbing Permit requirements across Virginia
By Mario Bailey Last verified 2026-06-17
Requirements and size thresholds for plumbing permits vary by locality. The table below compares what each Virginia county or city requires. Always confirm with the local office before starting.
| Locality | Permit required? | Typical threshold |
|---|---|---|
| Culpeper County | Conditional | Not specified |
| Fairfax County | Yes | Not specified |
| Fauquier County | Conditional | Not specified |
| Loudoun County | Yes | Not specified |
| Orange County | Not confirmed | Not specified |
| Prince William County | Conditional | building permit required for alterations to supply or drain systems; like-for-like fixture replacement without altering systems is exempt |
| Spotsylvania County | Yes | Not specified |
| Stafford County | Not confirmed | Not specified |