Certificate of occupancy

A document from the city or county saying the building is legal to occupy. Required for new construction and often for major renovations. No CO, no move-in.

Also called CO, C of O · Legal & title issues · Updated September 2026

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Where this comes up: under contract

This word belongs to the under contract part of a sale. Here is what that part holds, in order.

  1. Go under contractSign the purchase agreement · Confirm earnest money is deposited
  2. Buyer's inspectionCoordinate access for the inspector · Give the inspector clear access
  3. Title workOpen title with your closing team · Review the title commitment
  4. Settle repairsDecide what you'll fix and what you'll credit · Collect contractor quotes

Your Room keeps this list for your own sale, with your dates on it.

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Part 1 of 4

Why a seller cares

In some cities a home cannot change hands without a certificate of occupancy, sometimes a fresh one from an inspection before closing. Where that applies, it is the seller's step, and it can take weeks.

Part 2 of 4

A simple example

Your city requires a resale certificate of occupancy. An inspector visits, flags a missing smoke detector and a handrail, and issues the certificate after they are fixed.

Certificate of occupancy: a simple example
Where you areWhat the CO means for the sale
A city with resale inspectionsA municipal inspection and certificate before closing, arranged by the seller
A finished addition with no COA permit-closing process, or a disclosure and a nervous buyer
Most placesThe original CO is in the file and nothing more is asked

Where a CO is part of a sale, it is a deadline with an inspector attached.

Part 3 of 4

What people get wrong

That a CO is only for new construction. Some towns want a fresh one on every resale, and the seller finds out at contract.

Part 4 of 4 · where to read next

Where it appears in the sale

What a definition is, and what it isn't

Keighbor is a software company, not a law firm, brokerage, or tax adviser. This is general information, not legal, tax, financial, or real estate advice about your sale. Your situation may differ. Before acting on a contract, disclosure, title, tax, or pricing question, ask an appropriately licensed professional in your state.

Written and researched by Keighbor Research · drawn from the reference glossary · how we research and check what we publish

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Your Room defines certificate of occupancy in the step you meet it in, beside the document or the date it belongs to. Free to set up, with an agent or on your own.

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