What is a notice of commencement? Purpose and project context.
Understand a notice of commencement, how it differs from a building permit and lien waiver, and what its fields can tell you about a construction project.
A notice of commencement is a construction notice used in certain states to identify an improvement, the property, and relevant parties. Its filing, posting, and legal effects depend on the state and project. It does not itself authorize construction.
Four documents, four different jobs
| Document | Purpose | Do not infer |
|---|---|---|
| Notice of commencement | Provides project and party information under the applicable notice system. | That physical work began on the recording date. |
| Building permit | Records an authority’s authorization within the permit’s scope. | That the project is complete or seeking bids. |
| Lien waiver | Releases specified rights under its terms and applicable law. | That every project participant has been paid. |
| Notice of completion | Addresses completion under the applicable state system. | That it is interchangeable with a commencement notice. |
Why a notice of commencement exists
Construction projects involve an owner, contractors, suppliers, and sometimes a lender or payment-bond surety. A commencement notice makes specified project and party information available within the state’s construction-notice system. It helps readers identify the project and the relevant parties.
Do not treat the name as a national standard. Before deciding whether a notice is required, establish the state, property, project type, and applicable exceptions. A form from another state may answer the wrong legal questions.
Florida as a concrete example
Florida Statutes section 713.13 describes recording and posting a notice of commencement for covered improvements, subject to the stated exceptions. It identifies information such as the property, improvement, owner, contractor, and applicable lender or surety details.
The provision also addresses duration, changes, and the consequences of certain payments after expiration. Those details matter to the parties managing the project; a short online definition is not enough to decide how to file or pay. Review the current statute and county procedures for your situation.
What information should a researcher read?
Start with the property identification, then read the improvement description and the named parties. Keep roles separate: owner, contractor, lender, surety, and notice recipient describe different relationships. A name in a notice is not automatically a verified employee or purchasing contact.
Our suggested research record includes the source document reference, recording date, property identifier, described work, named contractor, any referenced amendment, and an uncertainty note. Preserve the source wording before adding your own classification.
A recording date is not a construction start date
Illustrative example: a notice is recorded on May 3, a permit is issued on May 10, and a dataset first observes the notice on May 12. These are three different dates. The example does not establish the day workers arrived on site.
When using records for territory research, label the date you are filtering. Do not turn a newly retrieved historical notice into a claim that a new project just started. Check for related permits, amendments, and other project evidence before describing the stage of work.
How it differs from a permit or lien waiver
A permit concerns the authorization represented by the issuing authority’s record. A commencement notice serves the applicable construction-notice process. A lien waiver releases specified rights. One document does not do the work of all three.
Likewise, do not confuse commencement with completion. California’s CSLB describes a notice of completion as a document connected to completion and lien-recording timeframes. That California process should not be imported into a Florida commencement workflow.
How to research a recorded notice
For a known property, start with the relevant county’s official records office and its published search instructions. Search using the identifiers that office supports, then inspect the underlying document. An index entry alone may omit details necessary to understand the parties or scope.
Check whether later documents amend, replace, or terminate the notice. Record what you found and what remains unknown. Access, fees, indexing, and available history vary, so an unsuccessful search does not establish that no notice exists.
Using the record in contractor research
A notice can give a commercial researcher a reason to investigate a business and project. It does not prove an open purchasing opportunity, current contractor capacity, or that a listed participant performed all of the described work.
ObservedWork’s approach is to keep identity, geography, and date context attached to construction evidence. Combine records only when the match is supported, and retain uncertainty when similar names or overlapping projects make the relationship unclear.
A practical review checklist
- Establish the state, property, and type of improvement.
- Read the underlying recorded notice, not just its index entry.
- Keep each named party’s role intact.
- Separate recording, permit, observation, and actual work dates.
- Look for related amendments or termination documents.
- Use current official guidance and qualified advice for filing or payment decisions.
General educational information, not legal advice or filing instructions. Confirm current state law, local procedures, and project-specific requirements with the recording office and qualified counsel.
Sources & further reading
The primary sources below support the definitions and jurisdiction-specific examples. Checklists, illustrative examples, and research workflows are ObservedWork’s editorial guidance. Sources reviewed September 7, 2026.