Quick answer: Fannie Mae requires credit documents to be no more than four months old on the note date, so a long closing can mean refreshed paperwork. On a $1,000,000 Boulder 80302 home with 20% down at 7.18%, the $800,000 loan is about $5,419 a month in principal and interest.
By Katerina Veteskova, Colorado real estate broker license FA.100082955, eXp Realty, LLC
Boulder buyers often ask me how long a preapproval stays good once they start touring homes. The honest answer is that your paperwork has a clock, and it keeps running while you shop, negotiate and close.
The example is a $1,000,000 purchase in the 80302 zipcode with 20% down, or $200,000, and an $800,000 30-year fixed loan.
Does a mortgage preapproval expire before closing on a Boulder home?
The documents behind it do, so read the date on your own letter.
Then ask your loan officer which documents it rests on. The Fannie Mae Selling Guide sets the outer limit for the credit file, and it is counted on the day the note is signed, not the day you were preapproved.
What does a $1,000,000 Boulder 80302 purchase look like with 20% down at 7.18%?
An $800,000 loan with principal and interest near $5,419 a month.
That payment uses the 30-year fixed average Freddie Mac reported as of November 5, 2026. Taxes, insurance and association dues are added to that figure. The loan sits under the one-unit conforming limit of $879,750 for Boulder County in the FHFA 2026 county loan limit file, so it is not a jumbo loan.
How old can credit documents be on the closing date?
No more than four months old on the note date.
Credit documents include the credit report and the employment, pay and asset paperwork. When statements come in a series, the newest one sets the age. A set dated November 9, 2026 would be four months old on March 9, 2027, so a closing past that date means the lender must update them.
Email me Boulder listings from $700,000
Email me new Boulder listings from $700,000 as they come on the market, so I can time my preapproval paperwork before I write an offer.
How old can an appraisal be at closing?
Within 12 months of the note date, with an update once it is more than four months old.
The appraisal age rule requires an update by the appraiser, including an exterior inspection and a look at current market data, when the report is more than four months old but under 12. If that update shows the value has declined, the lender must obtain a new appraisal. A desktop appraisal older than four months needs a new one.
Plan to refresh your paperwork if:
- Your preapproval documents were pulled at the start of a long home search
- Your closing date sits close to or past the four-month mark
- Your lender lists updated statements as a condition on the approval
Expect no refresh if:
- You close well inside four months of the dates on your documents
- Your appraisal is recent and your lender has not asked for an update
- You send new statements as soon as your loan officer requests them
Is a Loan Estimate the same as a preapproval?
No, it shows expected terms and the lender has not yet approved or denied the loan.
The CFPB notes that some lenders lock your rate when they issue a Loan Estimate and some do not, so check the lock line before you rely on the number.
Is $1,000,000 a realistic price in 80302?
It sits just under the recent 80302 median, and it fits the Living Boulder search floors from $700,000.
For the three months ending September 2026, Redfin showed an 80302 median near $1.1M, about 68 days on the market, and a 96.0% sale-to-list ratio. Days on market measures the listing, not the closing, so add time for the contract period when you plan your documents. Browse live inventory in the Boulder homes from $700K, Boulder 80302 homes from $700K and Boulder $700K to $1M searches, plus Boulder homes from $1,200,000 for higher list prices and Boulder townhomes and condos from $700K for attached homes.
Which nearby Living searches fit a $1,000,000 Boulder-area budget?
Close by, compare Louisville homes from $700K, Louisville $700K to $1M and Superior homes from $700K, then Superior $700K to $1M, Lafayette homes from $700K and Longmont homes from $700K.
For a price check open What $1 Million Buys in Boulder County. For a cash plan, see Boulder County cash to close from $700K; for a first purchase in the county start with first home in Boulder County.
Broker view: "When buyers ask me about preapproval, I tell them to treat the paperwork like a carton of milk with a date on it. If closing runs long, I would rather see fresh statements in the lender's hands a month early than a rushed scramble in the final week." - Katerina Veteskova, eXp Realty, LLC
What this guide does not cover: lender-specific letter expiration dates, rate lock extension fees, tax return age rules, FHA and VA document rules, jumbo underwriting, Boulder property tax, insurance or association dollar amounts, and closing cost totals. This is not financial advice, and your lender can confirm the dates on your file.
Sources: Freddie Mac PMMS 7.18% 30-year fixed dated November 5, 2026. Fannie Mae Selling Guide B1-1-03 allowable age of credit documents and B4-1.2-04 appraisal age and use requirements, checked November 9, 2026. CFPB multiple Loan Estimates page. FHFA 2026 one-unit limit for Boulder County. Redfin 80302 market snapshot for the three months ending September 2026. Monthly P&I is my amortization on an $800,000 loan, for illustration only.
Planning a Boulder purchase near $1,000,000? Call or text 720-646-4685, or request a tour.
Frequently asked questions
How old can credit documents be at closing on a Boulder mortgage?
Under the Fannie Mae Selling Guide, credit documents must be no more than four months old on the note date. That covers the credit report plus employment, pay and asset documents, and the newest document in a series sets the age.
Does an appraisal expire before closing?
Fannie Mae requires the property to be appraised within the 12 months before the note date. If the appraisal is more than four months old but under 12, the appraiser must complete an update, and a desktop appraisal older than four months needs a new one.
What happens if my documents go stale before closing?
The lender must update any credit documents that are older than allowed. Ask your loan officer which dates matter on your file so you can send fresh statements early and avoid a last-minute delay.
Is a Loan Estimate the same as a preapproval?
No. The CFPB explains that when you receive a Loan Estimate, the lender has not yet approved or denied your loan, even if your rate is locked. A Loan Estimate shows the terms the lender expects to offer.
Katerina Veteskova is a Colorado real estate broker (license FA.100082955) with eXp Realty, LLC. Call or text 720-646-4685, or request a tour.