Non-Warrantable Condo Loan Calculator

A non-warrantable condo fails Fannie Mae's project review — most commonly because of high commercial space mix (>35%), single-investor concentration (>10% in one entity), pending litigation, inadequate reserves, or short-term-rental ratios. When a condo is non-warrantable, conventional financing isn't available; buyers need portfolio loans with materially worse terms.

Why a Condo Becomes Non-Warrantable

Commercial mix > 35% of project square footage. Single investor owns > 10% of units. Pending HOA litigation (material to financial condition). Reserves < 10% of annual operating budget. Short-term rentals > 35% of units (hotel-like operation). Source: Fannie Mae B4-2.

Portfolio Loan Pricing

Portfolio lenders hold the loan on balance sheet rather than selling to Fannie/Freddie. Typical terms: 25–35% down payment, rate +0.5% to +2% above conventional, often 7-year ARM rather than 30-fixed. Some private banks offer fixed-rate non-warrantable financing for high-net-worth borrowers at narrower spreads.

Path Back to Conventional

Many non-warrantable issues are temporary — pending litigation settles, reserves are rebuilt, commercial tenant turns over. Refinance into conventional financing once the project is back in compliance. Track the HOA quarterly; the day the project becomes warrantable, refi to recapture interest savings.

Non-Warrantable Condo Loan Calculator: Numbers to Pull Before You Tour

Before you even tour a condo flagged non-warrantable, this non-warrantable condo loan calculator needs four hard data points the listing agent rarely volunteers: (1) percent of units owner-occupied vs investor-held (Fannie wants ≥50% owner-occupied per Fannie Mae B4-2.1-02); (2) reserves as a percent of annual operating budget (target ≥10%, ≥10% triggers Fannie Q reserve haircut); (3) any litigation involving structural defects or assessments >10% of budget; (4) short-term-rental ratio (cap 35%). Get these from the HOA's most recent annual condo questionnaire — sellers must provide it on request in 49 states. Plug the resulting portfolio rate (typically conv + 0.75% to + 1.75% in 2026) into the calculator above; the monthly delta usually beats a 5/1 ARM only if you plan to refi within 4 years.

How HOA Litigation Wrecks Condo Warrantability — and How to Spot It Early

Pending construction-defect or assessment litigation is the #1 cause of post-2024 condo non-warrantability rejections, even when reserves look healthy. Per Freddie Mac Condo Project Advisor, any active suit alleging "material adverse impact" on project finances disqualifies the project from conventional financing — and post-Surfside (2021) lenders read this aggressively. Pull the HOA's litigation disclosure and the most recent reserve study before placing an offer; if either is "not available," budget for portfolio pricing in the calculator and a 25% minimum down payment.

Last updated 2026-06-30. Sources: Fannie Mae Selling Guide B4-2.1, Freddie Mac Condo Project Advisor.