What Is an Owner-Builder Permit for Irrigation?

An owner-builder permit is a building permit issued directly to a homeowner who intends to act as their own contractor for a construction project — in this case, a residential irrigation system. It is the mechanism that allows homeowners to legally self-install projects that would otherwise require a licensed contractor.

The term "owner-builder" and "homeowner permit" are used interchangeably in most jurisdictions. Some states use the term "owner-occupant permit." In Florida, the governing statute explicitly calls this an "owner-builder" exemption under Florida Statute 489.103(7).

Who Qualifies for an Owner-Builder Permit?

Qualification criteria are consistent across most states that offer owner-builder permits:

  • You own the property — demonstrated by your name on the deed or title
  • You occupy the property as your primary or secondary residence — most states require owner-occupancy, not just ownership
  • You personally perform the work — or direct employees (not subcontractors) to do so
  • The property is single-family residential — owner-builder permits do not apply to commercial properties, multi-family buildings, or rental properties you don't live in

The Owner-Builder Affidavit or Declaration

Most jurisdictions require you to sign an owner-builder declaration or affidavit as part of the permit application. The affidavit typically states:

  • You are the owner and occupant of the property
  • You understand that you are taking on the responsibilities of a contractor
  • You understand that applicable codes and standards must be met
  • In Florida and some other states: that you will not sell the property within one year of completion without disclosing the owner-built work to the buyer

The affidavit is typically a one-page form available at your county or city building department or downloadable from their website. Some municipalities require it to be notarized.

Key Limitations of Owner-Builder Permits for Irrigation

An owner-builder permit authorizes you to do the work — but it does not change technical code requirements or waive certain licensed-trade rules:

  • Backflow device installation: In many states (Illinois, Massachusetts, Minnesota, Wisconsin, and others), installation of the backflow prevention device is classified as plumbing work requiring a licensed plumber, even when the rest of the irrigation system can be owner-installed. The owner-builder permit covers the excavation, pipe, valve, and head installation — but the plumbing connection requires a licensed trade.
  • Electrical work: If your irrigation system includes low-voltage wiring for the controller (24V AC is standard for residential), you can typically wire this yourself. However, if you are running a new 120V circuit to the controller location, that work requires either a licensed electrician or separate electrical permit with inspection.
  • Inspections still required: An owner-builder permit does not waive inspection requirements. The final inspection holds you to the same technical standards as a licensed contractor.
⚠️
Rental Properties: Owner-Builder Permits Do Not Apply

Owner-builder permits apply only to owner-occupied residences. If the property is a rental — even if you own it — you cannot pull an owner-builder permit for irrigation work. A licensed irrigator or general contractor must perform and permit the work.

State-by-State Owner-Builder Availability for Irrigation

See the full Homeowner Exemptions by State guide for a detailed breakdown. In summary:

  • Broadly available (with affidavit): Texas, Florida, Georgia, Indiana, Tennessee, Oklahoma, Alabama, Mississippi
  • Available with limitations: California, Arizona, Oregon, Washington, Colorado, Nebraska
  • Very limited or not available: New Jersey, Minnesota, Massachusetts, Wisconsin, New York, Connecticut

An owner-builder permit does not protect you from liability for defective work — it simply grants you the legal right to perform the work. If your self-installed irrigation system causes water damage, you are responsible for the damage. Some states (notably Florida) provide an implied warranty protection to home buyers when owner-builder work is sold within a certain period. The permit inspection process is your best protection — passing inspection means a licensed inspector verified the work meets code.

Unpaid family assistance is generally acceptable — the restriction on owner-builder work is typically about hiring and paying someone to perform the work, not about having a family member help. However, the moment money changes hands — even a small amount — the person receiving payment needs to hold the appropriate contractor license in most states. When in doubt, ask your local building department for their specific interpretation.

Related: Homeowner Exemptions by State · How to Get a Permit · Permit Checker Tool