Certificate of Occupancy vs Certificate of Completion

Updated 8 min read

Short answer

A certificate of occupancy (CO) says a building may be lawfully occupied for its classified use, usually after new construction or a change of use. A certificate of completion (CC) documents finished work when occupancy does not change. Cities define the split locally.

CO required before
Occupying a building or changing its occupancy classification
IBC 111.1
Temporary CO
Allowed before all work is complete if the portion can be occupied safely, for a time period the official sets
IBC 111.3
CC use
Remodels, renovations and shell buildings (City of Miami); apartment alterations with no occupancy change (LADBS)
City of Miami; LADBS P/BC 2020-108
On this page (8)
  1. What the model code says about the certificate of occupancy
  2. Where a certificate of completion comes from
  3. Which one does your project need?
  4. Final inspection is not the certificate
  5. Temporary certificates
  6. How the architect's certificate of substantial completion differs
  7. What to bring to the final
  8. Common questions

A certificate of occupancy (CO) is the building department's statement that a building or space can be lawfully occupied for its classified use. A certificate of completion (CC) documents that permitted work is finished and approved when the occupancy classification does not change. The model code only defines the first one. The second is a local practice, so the name, and the work it covers, depends on your city.

This guide shows how the two documents split in the cities that use both, what the model code says about the CO and the temporary CO, and how both differ from the contract document your architect issues at substantial completion.

What the model code says about the certificate of occupancy

The International Building Code (IBC) covers this in Section 111. Section 111.1 says no building or structure may be occupied, and no change in the existing use or occupancy classification may be made, until the building official has issued a certificate of occupancy. The exception is work that is exempt from permits under Section 105.2. Section titles shift between editions and local amendments, so confirm the wording in the edition your jurisdiction adopted.

Section 111.2 lists what the certificate must say. The items include the type of construction, the design occupant load, whether the building has a required sprinkler system, and any special stipulations of the permit.

Section 111.4 lets the official suspend or revoke a CO or a temporary CO if it was issued in error or on incorrect information.

Where a certificate of completion comes from

Some jurisdictions need a document for the close of a permit that doesn't change what the building is used for. They issue a certificate of completion. Three examples from published city guidance show the pattern, and also the differences.

CityCO is issued forCC is issued forSource
Miami, FLNew construction or a change of use (for example, school to restaurant)Remodels, renovations and shell buildingsCity of Miami
Goose Creek, SCEstablishing the occupancy classification of new structuresConstruction of any scope where the classification does not change, and shell buildings (tenant finish-outs come later)City of Goose Creek
Los Angeles, CANew construction, additions and changes of occupancyApartment-to-condo conversions and other apartment alterations with no occupancy changeLADBS bulletin

Miami, FL

CO is issued for
New construction or a change of use (for example, school to restaurant)
CC is issued for
Remodels, renovations and shell buildings
Source
City of Miami

Goose Creek, SC

CO is issued for
Establishing the occupancy classification of new structures
CC is issued for
Construction of any scope where the classification does not change, and shell buildings (tenant finish-outs come later)
Source
City of Goose Creek

Los Angeles, CA

CO is issued for
New construction, additions and changes of occupancy
CC is issued for
Apartment-to-condo conversions and other apartment alterations with no occupancy change
Source
LADBS bulletin

The pattern is the same in all three: the CO follows new occupancy, and the CC follows work on a building whose classification stays put. After that the cities part ways.

Los Angeles is the clearest about why the CC exists. The LADBS bulletin says the Los Angeles Municipal Code (Section 91.109.1) doesn't require a CO when occupancy doesn't change. Customers had long expected a CO anyway, so the department created the CC to give them paperwork. If part of an apartment building changes occupancy, such as converting a garage, LADBS still issues a CO. The bulletin is labeled P/BC 2020-108, and LADBS also lists it as IB/P/BC 2023-108, so check ladbs.org for the current version.

Local rules can sit further apart than these three, so read your own city's handout rather than assuming it works like Miami's or Los Angeles's.

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Which one does your project need?

You can't settle this from the model code, so settle it from the permit. Work through these in order:

  1. Check the permit type and the occupancy classification on the approved plans. New building, addition or change of use points to a CO.
  2. Check the local handout. Search the building department's site for "certificate of completion." Miami's page, for instance, says your permit application in its iBuild system indicates whether a CO or CC applies.
  3. Ask when the finals are scheduled. The building official, not the architect, decides which certificate closes the permit. A short email before the final inspection avoids a surprise at the end.
  4. For a shell building, plan for two documents. In Miami and Goose Creek a shell gets a CC. The tenant's finish-out later gets its own permit and, depending on the city, its own CO or CC.
  5. For small work, expect neither. Replacing a water heater or a reroof usually ends with a final inspection on the permit and no new certificate.

Final inspection is not the certificate

A passed final inspection is a step in the permit process. The certificate is a separate document that usually follows it. Some cities issue the certificate only after every trade has finalized. Miami's page says the permit must be final first, all final inspections must be approved, and outstanding permit revisions, such as a contractor change, must be resolved. Miami Beach adds a request form and a fee: the sequence is final building inspection, CO/CC request form, invoice and payment, then the Building Official signs.

Some jurisdictions don't issue a paper certificate at all for smaller jobs. They record the approval as a "final" status on the permit. Don't assume your client has a document until you have seen it.

Check the occupancy rule before the move-in date is promised. Some cities say a structure can't be occupied until all final inspections are approved and the certificate is issued. For commercial space, tenants should hold their fixturing and move-in until the certificate is in hand.

Temporary certificates

When the work isn't done but part of the building is safe to use, the code allows a temporary CO. Under IBC 111.3 the building official may issue one before the entire work is complete, provided the portion to be occupied can be occupied safely. The official sets the period the temporary certificate is valid. Some local codes cap it: Massachusetts's amendment (780 CMR 111.3) says not to exceed 180 days, and Larimer County, CO issues TCOs valid for 180 days.

Cities that use CCs often have a matching temporary certificate of completion (TCC). Miami, Doral and Miami Beach each publish a TCO/TCC process.

City checklists agree on three things:

  • Life safety comes first. Tracy, CA lists emergency lighting, exit signs, fire alarms, sprinklers and egress paths as items that must pass before a TCO is approved. Pompano Beach, FL wants life safety systems installed and fully operational before it will take the application.
  • Fire and building both sign off. Milpitas, CA requires final inspections from the Fire and Building departments confirming the minimum fire and life safety requirements for temporary occupancy.
  • The clock matters. Monroe County, FL requires all finals to pass before the date on the TCO. Santa Clara, CA requires occupants to vacate by the expiration date unless an extension is granted. Winter Park, FL notes that missing the date can lead to termination of electrical service.

Miami adds that TCO/TCC inspections differ from final inspections, and you must get a TCO/TCC inspection for each trade that will need a final. Plan the trade-by-trade schedule backward from the expiration date. If you can't finish in time, ask for an extension before the date, not after. Miami-Dade and Pompano Beach both describe an extension request.

How the architect's certificate of substantial completion differs

Contract documents add a third certificate. On AIA contracts, the architect prepares a Certificate of Substantial Completion (AIA G704). It sets the date of substantial completion and the owner's and contractor's responsibilities for security, maintenance, heat, utilities, damage and insurance. It is a contract milestone between the owner and contractor.

The CO is a permit document issued by the authority having jurisdiction. They are separate. The contract may connect them. Some contracts make the G704 a condition before the contractor may request a CO or TCO, and others say nothing. Read the contract language before assuming either way. If it doesn't tie the two, the G704 can be issued without a CO, but the building still can't lawfully be occupied without one.

Your closeout package usually collects the G704, final inspection reports, as-builts, O&M manuals, warranties, lien waivers and the final application for payment. Keep a dated list of which certificate each permit needs and who holds it. Olumba's permit tracking can hold those dates.

What to bring to the final

Requirements differ, but these items come up in the checklists above:

  • Approved plans and any revisions on site, with permit revisions resolved
  • Fire department final or temporary release where a completion hold exists
  • Final inspection sign-offs for each trade on the permit
  • The CO/CC request form and fee, where the city has one
  • A written request for a temporary certificate, with the occupied area marked, if you need one

For city-specific processes, see our building permit pages by jurisdiction, or read how to get a building permit for the full sequence.

Common questions

Is a certificate of completion the same as a certificate of occupancy?

No. A CO allows occupancy for a classified use. A CC, where a city issues one, documents finished work that didn't change the occupancy. The IBC defines only the CO, so the CC's meaning comes from local rules.

Do I need a certificate of occupancy for a remodel?

It depends on the city. Miami and Goose Creek use a certificate of completion for remodels that don't change classification. Other cities may require a new CO for any remodel, so ask the building department.

Can I move in with a temporary certificate of occupancy?

Yes, for the portion the building official has approved. IBC 111.3 lets the official issue a TCO before all work is complete if that part can be occupied safely, and the official sets the time period. The TCO expires, so schedule the remaining finals before the date.

Is the final inspection the same as getting the CO?

No. The final inspection is the last code inspection on the permit. The certificate is issued afterward, often after a request and fee, once every trade has finalized.

Does substantial completion mean the building can be occupied?

Not legally. Substantial completion is a contract milestone, usually documented on AIA G704. Occupancy requires the CO or TCO from the building department.

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