Question 1

Where does a jumbo loan start in Castle Rock, CO?

Accepted Answer

In DOUGLAS County, any single-family mortgage above $862,500 is a jumbo loan — outside Fannie Mae and Freddie Mac guidelines. This is the 2026 FHFA conforming limit for this county. Jumbo loans are held in-portfolio by lenders and carry their own underwriting standards.

Question 2

What are jumbo loan requirements in Castle Rock in 2026?

Accepted Answer

For a typical Castle Rock jumbo purchase around $912,500: minimum 10% down ($91,250), 700+ credit score, 45% max DTI, 6 months reserves post-closing (approximately $32,370). Employment history of 2+ years in the same field, 24 months of tax returns (or bank statements for self-employed), and full asset documentation are standard.

Question 3

Are jumbo rates competitive in Castle Rock?

Accepted Answer

In 2026, well-qualified jumbo borrowers in Castle Rock (760+ FICO, 20%+ down, full-doc income) routinely see jumbo rates within 0.125%-0.25% of conforming rates. The jumbo-conforming rate spread has compressed significantly from historical norms. Shop at least 3 portfolio lenders and a mortgage broker — a 0.125% rate difference on $821,250 equals $85/month ($1,026/year).

Purchase price	$912,500
Down payment (10%)	—
Jumbo loan amount	—
Monthly P&I	—/mo
Reserves required	6 months

Jumbo Home Loans in Castle Rock, CO

Jumbo Loan Math — Castle Rock

Qualifying for a Jumbo Loan

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