Gas Line Permit Requirements in St. Johns County, FL
St. Johns County Building Services issues all residential permits (building, electrical, mechanical, plumbing, roof, pool) for unincorporated county land outside the City of St. Augustine and City of St. Augustine Beach. Codes in force: Florida Building Code 8th Edition (2023) residential and building, NEC 2020, ASCE 7-22 wind design. County is in the wind-borne debris region (not HVHZ, which is only Miami-Dade and Broward). Impact-rated windows and doors or approved storm shutters required for residential openings. Septic permits handled by Florida Department of Health in St. Johns County at (904) 506-6081. Driveways on county roads go through St. Johns County Road and Bridge; driveways on US-1 or I-95 require FDOT approval. Historic district overlays may apply in some areas. Licensed FL CILB contractors required for most trades; owner-builder allowed under F.S. 489.103(7) for homesteaded primary residence with personal supervision affidavit.
By Joey, Founder · Last verified April 20, 2026 · How we research →
When you need a Gas Line permit in St. Johns County
Gas appliance connection or replacement requires a mechanical permit. A Florida-licensed gas or mechanical contractor is required for any gas line work per FBCR 8th Edition G2417 (pressure test required).
Running a new gas line (extending the existing system or installing CSST) requires a mechanical permit. A Florida-licensed gas contractor and pressure test per FBCR 8th Edition G2417 are required. CSST must be bonded per NEC 2020.
Gas Line Permit Costs: St. Johns County vs. Nearby
St. Johns County's fees are right in line with the Florida average, $75 – $275 versus $66 – $332 statewide.
| City | Estimated Fee |
|---|---|
| St. Johns County | $75 – $275 |
| Jacksonville | $50 – $400 |
| Miami | $50 – $400 |
| Tampa | $50 – $400 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all St. Johns County permit costs →
Zoning & HOA Considerations
Gas line work itself does not typically trigger zoning review, but outdoor gas lines to appliances (fire pits, pool heaters, outdoor kitchens, generators) may be subject to setback rules based on the appliance being served.
If you live in an HOA community: hOAs generally do not restrict gas line installation for indoor appliances, but may regulate outdoor gas features (fire pits, outdoor kitchens) and their visibility. Outdoor propane tanks often face placement and screening requirements.
Estimated Project Timeline in St. Johns County
Here's a typical timeline for a gas line project in St. Johns County, FL:
Timeline is based on St. Johns County's typical about 2 weeks permit processing time. Actual timelines vary by project complexity, completeness of application, and current department workload.
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Frequently Asked Questions
Estimated permit fees for Gas Line projects in St. Johns County, FL range from $75 – $275. Fees vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Gas Line projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit in St. Johns County can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Typical approval time for Gas Line permits in St. Johns County is about 1 week. More complex projects may take longer if plan review is required.
If you live in an HOA community, you may need architectural review approval in addition to a building permit. HOA rules and city building codes are separate, you may need to satisfy both. Review your CC&Rs and submit to your HOA's architectural review committee before starting work.
Learn More About Gas Line Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Gas Line Guide →