How does closing work on a newly built custom home in Arizona?

A loan conversion sits at the center of this process, which is what makes it different from buying a resale home: closing converts your construction loan into a permanent mortgage and transfers the finished home to you. The home must already have its certificate of occupancy. Your lender sends a Closing Disclosure at least three business days before closing, you sign the final loan and title documents at a title or escrow company, the deed and deed of trust are recorded with the county, the lender funds the permanent loan, and you get the keys.

The order matters and the parts depend on each other. The certificate of occupancy has to exist before the lender will close, and the three-day disclosure clock has to run before you can sign. Understanding the sequence helps you spot a delay early and keep your move-in date on track.

The construction-loan-to-permanent conversion

Closing on a custom build centers on turning a short-term construction loan into a long-term mortgage. A construction loan, in the Consumer Financial Protection Bureau's words, is "usually a short-term loan that provides funds to cover the cost of building" a home, paid out "in a series of advances as the construction progresses." Those advances are the draws your builder pulls against the draw schedule as the build hits milestones, the same mechanics covered in how a construction loan draw schedule works. When the home is finished, that short-term balance has to be paid off and replaced with a permanent loan you make monthly payments on.

How that conversion happens depends on your loan type:

• Single-close (one-time-close) loan. The construction loan and the permanent mortgage are one loan with one closing, set up before the build started. When the home is done, the loan converts automatically to the permanent phase. There is no second closing and no requalifying.
• Two-close loan. You took a construction loan first, and now you close a separate permanent mortgage to pay it off. This is a real second closing with new paperwork. The CFPB warns that conversion is not automatic in this structure: "if your construction loan does not automatically convert you may have to reapply for a new loan," with terms based on your credit at that time.

Knowing which loan you have tells you what closing looks like. A single-close conversion is lighter. A two-close means a full second mortgage closing, including a fresh look at your credit and income. Confirm your structure with your lender well before the home is done, so a two-close requalification does not surprise you at the finish line.

The certificate of occupancy must come first

The certificate of occupancy is a hard prerequisite for closing on a new custom home. The certificate of occupancy (CO) is the document your city or county issues stating the home is complete, meets code, and is legal to live in. Lenders require it before they will fund a permanent loan. Under the Fannie Mae Selling Guide, when a construction-to-permanent loan funds both the lot and the build, "the lender must retain a certificate of occupancy or an equivalent form from the applicable government authority." No CO, no funded mortgage.

There is a legal reason the CO sits before closing, too. Under Section R110 of the International Residential Code, the model code Arizona jurisdictions adopt, no building may be occupied until the building official issues a certificate of occupancy. Mohave County's building ordinance, which adopts the 2018 IRC, states it directly: no building shall be used or occupied until a certificate of occupancy is issued. So the same document that makes the home legal to live in is the one your lender needs to close.

If a few minor items remain, the city can issue a temporary certificate of occupancy (TCO) with a deadline to finish them, and some lenders will close on a TCO. Ask your lender early whether a TCO is acceptable, because a back-ordered item that delays the full certificate of occupancy can otherwise delay your closing.

The Closing Disclosure and the three-day rule

A key protection at closing is the Closing Disclosure, the form that summarizes your final loan terms and closing costs. Federal rule requires your lender to deliver it to you three business days before closing. The CFPB states it plainly: "Lenders are required to provide your Closing Disclosure three business days before your scheduled closing." Those three days are yours to review the numbers and compare them against the earlier Loan Estimate.

Use that window. Check the loan amount, interest rate, monthly payment, and the "Cash to Close" figure. If something does not match what you expected, ask the lender to explain it before you sign. Certain changes, like a higher interest rate or a different loan product, restart the three-day clock, which can push your closing date. That is one more reason to review the disclosure the day it arrives rather than the night before.

This rule applies to most permanent mortgages on a custom home, including the permanent phase of a single-close loan and a standalone two-close mortgage. It is the law's built-in pause so a buyer is not surprised at the signing table.

Signing, title, and recording in Arizona

Closing in Arizona happens at a title or escrow company. That company acts as the neutral party that handles the money and the documents. Most Arizona deals close through escrow, not at an attorney's office, which is how many other states do it. At signing you sign three core items. The promissory note is your promise to repay the loan. The deed of trust is the lender's security interest in the home. The closing statement lays out the final numbers. The lender then funds the permanent loan.

The transaction becomes official at recording. This is when the title company records the deed and the deed of trust with the county recorder, Maricopa or Pinal for Jematell's service area. Recording puts your ownership and the lender's lien on the public record. Before this, the title company runs a title search and issues title insurance. That insurance protects you and the lender against hidden claims, liens, or ownership defects. On a new build, a common title issue is a mechanic's lien. This is a claim a subcontractor or supplier can file if they were not paid for work on your home. The title company confirms there are no open liens before recording. That is why lien releases from your builder's subs are a normal closing item.

Once recording is confirmed, you take possession and get the keys. Because closing on a custom build pulls together your lender, the title company, the building department, and your builder, small details, a missing lien release, a CO still in process, a disclosure change, can move the date. The most reliable way to keep your closing on schedule is to confirm the exact requirements and timeline directly with your lender and your title or escrow officer in the final weeks, since they control the closing conditions and the funding. Get the conditions in writing, work each one off early, and your closing day becomes a signing, not a scramble.

Where Jematell Homes comes in

We are a licensed, family-owned Arizona custom home builder. Reach out and we will talk through how this applies to your specific lot and plan.

Sources

• Consumer Financial Protection Bureau: What is a construction loan?
• Consumer Financial Protection Bureau: Closing Disclosure (three-business-day rule)
• Fannie Mae Selling Guide B5-3.1-01 (Conversion of Construction-to-Permanent Financing; CO required)
• Mohave County, Arizona Building Ordinance 2021-03 (adopts 2018 IRC; restates R110.1 occupancy rule)