Plumb Intelligence
← Glossary

What is a notice of completion?

A notice of completion is a document a property owner records with the county to formally mark that a construction project is finished. Its main legal effect is on the mechanic’s-lien timeline: recording it starts (and often shortens) the clock contractors, subcontractors, and suppliers have to record a lien for unpaid work. By recording and giving notice of completion, an owner can compress the window for lien claims rather than leaving it open longer.

The notice of completion sits at the end of the project lifecycle, after the work is done and typically after final inspection. Recording it in the county records creates a dated, public marker of completion that everyone in the payment chain can rely on to count their lien deadlines from a known date instead of a disputed one.

For contractors, subs, and suppliers, that makes watching for a recorded notice of completion important — it can shorten how long you have to act on an unpaid invoice. Arizona’s exact post-completion lien-recording deadlines are set by statute and change, so confirm the current A.R.S. deadline before relying on a specific number.

At Plumb Intelligence we tie each permit to the contractor of record and the property’s owner, which is the foundation a supplier needs to track a job toward completion and serve the right party before lien deadlines run.

Related questions

Who files a notice of completion?
The property owner (or their agent) records it with the county once the project is finished. It’s an owner’s tool, and recording it affects everyone’s lien deadlines on the job.
How does a notice of completion affect a mechanic’s lien?
Recording it starts and usually shortens the window contractors, subs, and suppliers have to record a lien. Confirm the exact Arizona deadline against current statute.
Is a notice of completion the same as a certificate of occupancy?
No. A certificate of occupancy is the building department certifying a structure is safe and legal to occupy; a notice of completion is a recorded document marking the job finished, mainly affecting lien timing.

Related

Selling into Arizona construction?

Plumb Intelligence turns daily permits and the AZ ROC roster into a ranked call list.

Start 14-day free trial →
What is a notice of completion? | Plumb Intelligence