Condo Mortgage Rules 2026: Project Approval & Down Payment

The Condo That Almost Didn't Happen

Maya found the place three weeks into her search: a two-bedroom on the fourth floor with a view of the river, $350,000, and HOA dues of $400 a month that covered water, trash, the gym, and the roof. She offered, the seller accepted, and her loan officer congratulated her — then asked one question: "Is the building on Fannie Mae's approved list?" Maya had no idea the question existed. The building wasn't. Her 5% down conventional loan died in underwriting, and she spent the next six weeks hunting for a lender who would touch a non-warrantable project.

That story plays out thousands of times a year, because condo mortgages are the one corner of home financing where the building's paperwork matters as much as your credit score. This guide covers the rules that actually decide whether you can buy a condo — project approval, down payments, owner-occupancy ratios, HOA math, and special assessments — so you don't learn them the way Maya did.

Project Approval: The Rule That Gates Everything

When you buy a single-family house, the lender underwrites you and the house. When you buy a condo, the lender underwrites you, the unit, and the entire building — because your collateral includes shared walls, a shared roof, shared reserves, and a homeowners association that might be well run or a wreck. The building has to pass review before your loan can.

Fannie Mae and Freddie Mac maintain project approval standards, and a building that meets them is "warrantable." Lenders run every condo loan through a project review, either from the agency's approved database or a full documentation review. If the project fails, your options narrow fast:

• Warrantable project: standard conventional rates, down payments from 5%.
• Non-warrantable project: 20% down at many lenders, higher rates at others, some lenders won't touch it at all.
• FHA-approved project: 10% down through FHA (3.5% no longer applies to most condo purchases).
• Non-FHA project: 25% down through FHA, with narrow exceptions.

The worst part? Approval status changes. A building can lose its Fannie Mae approval after a flood of investor purchases pushes owner-occupancy below the threshold, or a reserve shortfall surfaces in the annual audit. Buyers who check the project status at offer time and again at underwriting have saved themselves real heartbreak. The pre-approval checklist should include a project-status check before you write an offer. And if you already own a condo in a building that lost approval, the refinance guide explains why your refinance options narrow — and what to do about it.

What Makes a Project Warrantable: The Checklist

Fannie Mae's project review looks at five big buckets, and each one can kill the loan:

Summarized from Fannie Mae Selling Guide (B7-3) and Freddie Mac Single-Family Seller/Servicer Guide. Exceptions exist for limited-review and small projects.

Notice what's missing: your credit score. A 780 FICO and 20% down won't rescue a loan in a building where 30% of units are delinquent on dues. The project review is a hard gate that no borrower profile can bypass, which is why the building's financials deserve as much scrutiny as the unit itself. Ask your agent to request the HOA financial statements, reserve study, and board meeting minutes before you make an offer — and read them.

Down Payments: Why 20% Is the Condo Default

Single-family buyers can put 3% down with Fannie Mae's HomeReady and Freddie Mac's Home Possible programs. Those programs cover condos too — but only warrantable ones. The moment a building fails project approval, the low-down-payment options evaporate, and the practical floor jumps to 20% at most lenders.

Here's the 2026 landscape by program:

Rates are averages as of August 2, 2026 and include the typical condo premium. See the current rate guide.

Work the numbers on Maya's building: a $350,000 condo with 20% down means a $280,000 loan. At a 6.75% condo rate, the principal and interest payment is about $1,816 a month. Add $400 in HOA dues, $300 in taxes, and $150 in insurance, and the real monthly cost is around $2,666 — before utilities. Run that through the TruePITI calculator with your actual dues and you'll see why the HOA number, not the list price, usually decides what you can afford.

The HOA Math That Changes Your Budget

Here's a rule that trips up first-time condo buyers: HOA dues count as part of your housing payment for debt-to-income purposes. When your lender calculates your DTI, the monthly dues sit right next to principal, interest, taxes, and insurance. On a $400 monthly assessment, that's $400 of qualifying debt — and at a 43% back-end DTI limit with a 6.75% rate, $400 of monthly debt costs you roughly $62,000 in buying power. Run your own numbers through the affordability calculator with the dues included — the payment that fits your budget is the one that fits your DTI.

The DTI calculator handles this if you include the HOA in the housing payment field. And don't just budget the current dues — budget the trend. HOAs in 2026 are raising dues faster than inflation in many markets because insurance premiums for common areas and condo buildings have climbed sharply, and aging buildings are hitting their first major repair cycles. A $400 assessment that becomes $500 two years in costs you another $100 a month, and you can't opt out — the association can lien your unit for unpaid dues, and the lender will not care that the increase felt unfair.

That's also why condo lenders look hard at reserves. An association with 10% of its budget in reserves is, by Fannie Mae's standards, adequately funded. One with 2% is one bad storm away from a special assessment, and you — the buyer — are the one who'll get the bill six months after closing.

Special Assessments: The Bill That Arrives After Closing

A special assessment is a one-time charge the HOA levies when reserves can't cover a major expense: a new roof, a failed elevator, a repaved parking garage. The math is simple and brutal: a $250,000 project on a 100-unit building is $2,500 per unit, usually due in full within 30-90 days or spread over a year. If the building needs $2 million in structural work — not rare for 1970s and 1980s condos — that's $20,000 per unit.

Lenders ask about assessments during underwriting for exactly this reason. A pending assessment can be fine if the building can fund it — the reserve study shows the money — but a large, unfunded assessment is a red flag that can delay the loan or, worse, start the project's decline toward non-warrantable status. Before you buy, ask three questions: Is there a pending assessment? When was the last one? What does the reserve study say about the next ten years? The board minutes will tell you more than the listing agent will.

If you do get hit with an assessment after buying, your options are thin: pay it, or finance it. Some associations allow installment plans, and a handful of lenders offer HELOCs on condos, but a $20,000 surprise bill is the kind of thing that makes people wish they'd read the minutes. The home equity guide covers the financing options if it happens to you.

Condo vs. Single-Family: The Real Differences

Condos cost less per square foot than houses in most markets, and the maintenance burden is lighter — the HOA handles the roof, the siding, and the landscaping. That's the pitch. The mortgage side is less friendly, and the differences compound:

General comparison as of August 2, 2026; individual projects and lenders vary.

How FHA Condo Approval Works — and Why It's Rare

FHA's condo approval process is a separate track from Fannie Mae's, run by HUD. A building applies for FHA approval by submitting its legal documents, budget, reserve study, and insurance certificates, and HUD reviews the whole package against its own standards: at least 50% owner-occupied, no single entity owning more than 10% of units (FHA is stricter than Fannie here), 10% of budget in reserves, and no pending litigation that threatens the association.

Here's the catch: most condo buildings never apply. FHA approval takes work, the association has to vote to do it, and many boards see no reason to spend the effort. The result is a patchwork where two identical buildings two blocks apart can have completely different FHA status. The HUD database is searchable, and your loan officer can check a specific address in minutes — do it before you write an offer.

If a building isn't approved, FHA financing generally requires 25% down. HUD has experimented with alternatives — spot approvals for individual units, streamlined reviews for established projects — and the rules have shifted several times in recent years, so the specifics depend on when you apply. The consistent advice is to check the database first and assume non-approved projects need a quarter down.

Insurance, the Master Policy, and Rising Premiums

Condo buyers inherit a second insurance layer most house buyers never think about: the master policy. The association carries insurance on the building — the roof, the exterior walls, the common areas, the shared systems — and your own policy covers the interior and your belongings. Lenders want to see the master policy as part of the project review, because a building with inadequate coverage is a building where one fire or storm becomes a special assessment.

Insurance is one of the fastest-rising costs in condo living. Common-area premiums have climbed sharply in recent years as insurers reprice coastal and wildfire risk, and those increases flow straight into your HOA dues. A building that paid $60,000 a year for master coverage three years ago might pay $110,000 today — and on a 100-unit building, that's a $500-per-unit annual increase in dues, roughly $42 a month. When you're comparing condos, ask for the association's insurance disclosure and check the premium trend in the minutes. A building with a claims history or a coastal location is a building whose dues have a ceiling you haven't hit yet.

Your own policy matters too. Condo unit owners insurance runs $300-$600 a year for a typical unit — cheaper than a house because the building is covered by the master policy — but the gap between the two policies is where surprises live. If the master policy covers only "walls in," your unit policy has to cover everything inside, and lenders will require evidence of coverage at closing either way.

Rental Restrictions: The Rule That Surprises Investors

If you're buying a condo as an investment — or thinking you might rent it out later — read the rental restrictions before you buy. Many associations cap the share of units that can be rented, typically 20-30%, and some require owner-occupancy for the first year or two. A building at its rental cap means your unit sits empty or your rental plans die on the board's doorstep.

The rental cap also feeds back into your financing. Fannie Mae's warrantability rules and investor-ratio guidelines interact with the HOA's own caps, and a building where 40% of units are rented starts failing the owner-occupancy tests that keep conventional financing available. Investors buying in such buildings often end up with 20-25% down and portfolio-lender pricing. If your plan includes renting the unit at any point, confirm the cap in writing — the listing agent's "I think it's fine" is not a document.

One more appraisal quirk worth knowing: condo appraisals use unit comparables, not neighborhood houses. The appraiser compares your unit against other units in the same building or similar nearby buildings — same floor plan, same view tier, same square footage. That means the building's own sale history sets your value, and a building with few recent sales appraises conservatively. Two identical units can appraise differently based purely on floor, view, and renovation level, so a top-floor corner unit with an updated kitchen carries real appraisal value while a first-floor unit with the original counters appraises below it. If you're financing with a thin down payment, the unit's comparability to recent sales in the building matters as much as the price you negotiated.

How to Buy a Condo Without Getting Derailed

The buyers who close on condos do five things differently:

• Check project status before the offer. Fannie Mae publishes an approved-project database, HUD has its own condo search, and your loan officer can run a project review in minutes. Do it before you negotiate, not after.
• Read the HOA packet. Financials, reserve study, minutes, delinquency report, insurance policy. Every one of these can kill the loan later, so read them now.
• Get pre-approved with the project in hand. A lender who quotes you 5% down needs to know the building is warrantable — give them the address at the first conversation. Pre-approval vs. pre-qualification explains why the letter matters here.
• Budget the dues into your DTI. Use the DTI calculator with the HOA included, and stress-test with dues 10-20% higher.
• Ask about PMI. Below 20% down on a warrantable condo, you'll pay PMI — often 0.5-0.8% of the loan annually, a bit more than single-family. The PMI calculator shows the monthly cost and when it drops off.

Bottom Line

Condo financing in 2026 comes down to the building, not just the buyer. Project approval decides your down payment and your rate; HOA dues decide your DTI; reserves and assessments decide whether the bill arrives after closing. A warrantable building with healthy reserves and a 50% owner-occupancy rate is financeable on the same terms as a house — everything else is where the surprises live. Check the project, read the minutes, and run the full monthly cost before you fall in love with the view.

Frequently Asked Questions About Condo Mortgages