Yes, usually several kinds. Phoenix requires a civil permit to excavate in a public utility easement. Mesa, Gilbert, Paradise Valley and Cave Creek require their own permits for work in one. State law requires a locate before digging, and a plumbing-only license is written for work inside the property line.
What permit does a city require to dig in a utility easement?
It varies by city, and the primary sources show it.
- Phoenix. Water Services' flyer says "The City of Phoenix requires a civil permit to excavate within a PUE." The flyer's three steps are access, permit and locate. For access: "Get permission to enter the property in which the utility is located." Permits come from the Planning & Development civil permits counter.
- Mesa. The code makes it unlawful to "construct, alter, or repair therein any pavement, sidewalk, crosswalk, curb, driveway, gutters, landscaping, sewers, water mains, or other structures or to make therein any excavation or in any manner disturb or obstruct the same or perform any other activity or work without first obtaining a Right-of-Way Permit," and "therein" refers to the "right-of-way or public easements of the City of Mesa."
- Gilbert. "It shall be unlawful for any person or entity to conduct work on, upon, below or above a public roadway, public street, public sidewalk, public alley or public utility easement of the town without first obtaining a permit from the town." Unauthorized work "shall constitute trespass."
- Paradise Valley. "Continuing or permanent use, work or encroachment in a right-of-way, road, street or alley, drainageway or easement shall be unlawful without an encroachment permit issued by the Town Engineer."
- Cave Creek. Work in a public right-of-way or a public utility easement needs a permit from the town, "approval for the planned work, and having the work supervised and inspected by the town."
If your property is in a city not listed here, ask its engineering or right-of-way office. Several permits can apply at once, such as the plumbing permit for the pipe and an excavation permit for the strip.
Does a plumber need the easement holder's permission too?
If the line you are fixing is yours, but the strip belongs to someone else's easement, yes. The permit tells you the city allows the work. It does not replace the holder's consent. Phoenix's flyer starts with permission to enter the property where the utility is located, and says to contact Maricopa County Planning and Development for help "with disputes, rights of way, or historical easements" if the PUE is on private property.
If the easement runs across a neighbor's land, you need that owner's agreement to enter. If you hold an easement over someone's land for a private line, see whether you can run a private line across a neighbor's lot. Who is responsible for the pipe is a separate question, covered in who repairs a sewer line that runs through an easement behind your building.
What about Arizona 811?
Always. A.R.S. 40-360.22 says "A person shall not make or begin any excavation in any public street, alley, right-of-way dedicated to the public use or public utility easement or in any express or implied private property utility easement or in any apartment community or mobile home park without first determining whether underground facilities will be encountered." That includes private easements. Our page on what Arizona 811 requires before a commercial excavation covers the ticket, the marks and the timing, and what potholing is shows how to confirm depth at a crossing.
Does the plumber's license matter?
Yes. The Registrar of Contractors scope for the C-37 plumbing classification is plumbing "performed solely within property lines and not on public easements or right-of-ways, except as hereinafter provided." The A-12 classification, Sewers, Drains and Pipe Laying, covers laying pipe for "storm drains, water and gas lines, irrigation, and sewers." Which classification applies to your job is a question for the contractor and the permit office. Ask for the license number and verify it. See how to verify a plumber's ROC license in Arizona.
What if it is an emergency?
Emergency rules differ and are narrower than people hope. Maricopa County's ordinance, for county roads, allows emergency excavation but requires permits "within one (1) business day after such action." Buckeye allows emergency work when city offices are closed but requires an application the next day they are open. Call the permit office early and ask what applies to your easement. For a gas leak or a main break, protect people first and make the calls right after.
A simple sequence for a commercial owner
- 1Confirm the pipe's owner and the easement's holder.
- 2Call the city or town and ask what permit covers digging in the strip.
- 3Get the holder's written consent if the strip is not yours or is shared.
- 4Order the 811 locate and plan potholes where lines cross.
- 5Verify the contractor's license and insurance.
- 6Schedule the work after approvals, not before.
HQ Plumbing & Air is licensed and insured and offers free estimates and upfront pricing on sewer and water line repair, and starts with a camera inspection so you know the scope before permits are filed.
This page explains general rules and is not legal advice. Permit rules change, so confirm them with your city or town and the easement holder.
