It depends on how it connects. A portable generator you set outside and plug appliances into with extension cords doesn't need a permit. A permanent standby generator, or anything that connects to your home's electrical panel, does. That includes the electrical work, the gas or fuel line, and where the unit sits.
The best time to permit a generator is now, not in August. Every hurricane season, the same thing happens: a storm heads for South Florida, everyone wants a generator, and permit and installer backlogs spike.
Quick answer
- Portable generator, cords only: no permit.
- Portable generator connected through a transfer switch or inlet: electrical permit for the switch or inlet.
- Standby generator: electrical permit, plus gas or fuel tank permits, plus site plan review.
- Placement rules: distance from windows, doors, the house and property lines.
- Plan ahead: permit and install backlogs spike when a storm is coming.
Why does a standby generator need a permit?
Three real dangers:
- Backfeed: a generator connected wrong can send power back into the utility lines and electrocute line workers trying to restore service. A properly installed transfer switch prevents it.
- Carbon monoxide: exhaust near an open window or door can poison the people inside. Placement rules exist because of this.
- Fuel: natural gas, propane tanks and diesel all need proper piping, distances and venting.
What does the permit package include?
In Broward, generator permits typically include:
- An electrical permit application for the generator and transfer switch. In Fort Lauderdale, for example, the residential standby generator package starts with the electrical permit application
- A site plan showing the generator and fuel tank locations, plus nearby operable windows and doors relative to the exhaust
- Equipment specifications for the generator and transfer switch
- Gas piping plans and tank specifications, with a gas contractor's permit application, for remote or supplemental fuel tanks
- A pad and anchoring detail to meet wind requirements
- A permanent sign at the electrical service showing where the generator is
Broward's countywide guidance also sets minimum distances for fuel tanks from the house and the property line. Check the current numbers with your city, because they affect where the unit can go.
What about the fuel?
Natural gas: the generator ties into your gas service. Expect a gas permit and a gas inspection, and the gas utility may need to upgrade your meter.
Propane: a tank on site, buried or above ground, with its own distance rules and gas permit.
Built-in tank: if a small integral tank is the only fuel source, Broward's guidance has said a separate piping or tank permit isn't needed. Confirm with your city.
Zoning and HOAs
Zoning decides where the generator can sit: setbacks from property lines and noise rules in some cities. HOAs often have rules about visibility and screening. Get both answers before you pour the pad.
How long does it take?
Generator permits involve more than one trade, and electrical, gas and zoning can each review separately. Plan for several weeks from application to final inspection, longer if a storm is in the forecast and everyone is applying at once.
Frequently asked questions
Do I need a permit for a portable generator transfer switch?
Yes. Any connection to your home's electrical system, including a manual transfer switch or a generator inlet box, needs an electrical permit and a licensed electrician.
Can I install a standby generator myself?
The electrical and gas connections are licensed work. A qualifying homeowner may pull some permits as an owner-builder, but it's rarely a good idea for gas and electrical work. Read about owner-builder permits.
Do I need a Notice of Commencement for a generator?
If the job is over $5,000, generally yes, recorded and posted before the first inspection. Most standby installs cost more than that.
Want your generator permitted before the next storm?
We handle electrical permits for standby generators across Broward and Palm Beach County and coordinate the gas and zoning pieces with your installer. Call us or request a callback.