How a HELOC Works in a High-Rise With a Commercial Floor

The Quick Read: A HELOC (home equity line of credit) on a tower unit works much like one anywhere else when your collateral is a residential unit: the lender reviews the unit, your credit and the combined loans on it, and the building’s commercial share only matters when it is large enough to change how the whole building is reviewed. Owning the retail or office space itself is a different story, because that makes the collateral commercial.

• A residential unit in a building with a commercial floor can still qualify as collateral.
• Commercial, mixed-use and live-work units are not eligible collateral through Lendmire’s wholesale network.
• On an investment property, the network ceiling is 70% combined loan-to-value (CLTV), with a 700 minimum credit score, subject to lender guidelines.
• The lender looks at the building as well as the unit, so a borderline commercial share can lead to a review rather than an automatic no.

Does a Commercial Floor Disqualify Your Unit?

No. The question splits in two. First, is your collateral a residential unit or a commercial one? Second, is the commercial floor big enough to change how the lender views the building? A residential unit above a ground-floor pharmacy, restaurant or garage is still residential collateral.

Here is how the common situations sort out:

Across the wholesale network Lendmire works with, commercial and mixed-use collateral is simply outside the equity line program. Property type is a separate matter, and condominiums, including non-warrantable ones, are on the eligible list.

How Underwriting Treats the File, Step by Step

Underwriting follows a predictable order. The lender settles the collateral question first, then the building, then you.

1. Classify the collateral. The lender confirms the unit is residential. Zoning, a commercial designation or a live-work classification can move the file into commercial territory, and that ends the HELOC path.

2. Set the lien position. A HELOC through the network is a standalone line, in first or second lien position. The lender adds every loan on the unit together and tests that combined total against the unit’s value. That total is the CLTV.

3. Review the project. The lender looks at the building’s insurance, pending litigation, commercial space and the number of units investors own. Heavy commercial use or weak insurance can make a project non-warrantable. That term is defined further down.

4. Measure the commercial share. This is a square-footage calculation drawn from the building’s recorded documents. The next section walks through it.

5. Check how the association earns money. If the association itself runs a business, such as hotel-type operations, that is a separate red flag.

6. Confirm title and vesting. Title must sit with you personally or in a revocable living trust. An LLC, corporation, partnership or irrevocable trust cannot hold title on these lines.

7. Value the unit and decide. Lines at or below $500,000 ordinarily use an automated valuation, and you can request a full appraisal in any case. Non-warrantable usually means a closer review, not an automatic decline.

How Is the Commercial Share Measured?

The commercial share is a physical and legal fact, not a judgment call. It is the commercial square footage divided by total square footage, and the building’s declaration and site plan record it. Title teams check those documents, as HOA Docs Direct explains.

Ground-floor retail usually keeps the share small. According to National Condo Inspections, most mixed-use residential buildings carry a commercial share in the single digits or low teens.

Picture a hypothetical tower where the retail podium and a street-level restaurant make up 12% of the building’s floor area. That share sits well under the benchmark used in agency guidelines, so the commercial floor would barely register in a project review. A tower where offices fill several lower floors is a different picture, and the share can climb quickly toward the limit.

Here is the one place agency rules matter. Fannie Mae’s Selling Guide limits commercial space to 35% of a condo project or of the building it sits in, counting space above and below grade. That test governs loans sold to Fannie Mae. It does not set the rule for equity lines placed through a wholesale network, so lenders apply their own project standards. The 35% figure is useful context for gauging how heavy a building’s commercial use looks. Other agencies differ, too.

So there is no universal cap. Ask the lender for its limit and how it counts parking, below-grade space and any separately owned commercial area.

Key Terms Defined

Commercial floor: A level or section of the building used for retail, office, restaurant or similar business space rather than housing.

Mixed-use: A property that combines residential and commercial space, either as a whole building or inside a single unit.

Warrantable condo: A project that meets the standards for resale to the big government-linked mortgage investors. Enact defines a non-warrantable condo as one that does not meet those eligibility requirements.

Non-warrantable condo: A project that fails one or more of those tests, often because of commercial space, litigation, insurance gaps or investor concentration.

CLTV (combined loan-to-value): All loans secured by the unit, added together and divided by its value.

Project review: The lender’s check of the building itself, separate from your credit and the unit.

What the Line Looks Like on an Investment Unit

Leverage depends on how you use the unit, so there is no single ceiling. These are typical guideline ranges from select lenders in the network, subject to full file review:

• Investment property: 70% CLTV maximum, 700 minimum credit score, lines up to $500,000.
• Primary residence: 90% CLTV is available only at a 720 or better credit profile, on lines up to $500,000. At 700 and above, that tier steps down to 85%, and larger lines of up to $750,000 are possible within the limits below.
• Second home: 90% CLTV only at 720 or better, lines up to $500,000, with a 640 minimum score.

Any line above $500,000 is limited to primary residences.

The structure matters as much as the percentage. Investment lines run a 5-year interest-only draw period followed by a 25-year fully amortizing repayment period. At least 75% of the line is drawn at closing. Pricing floats across both the draw and repayment periods and never converts to fixed. After closing, the minimum subsequent draw is $1,000 under the program that states one.

The lender reviews your file on the interest-only payment calculated on the maximum draw. Maximum debt-to-income is 50%, and 45% for credit profiles from 600 to 679. A borrower is limited to three lines, and owning more than 15 financed properties makes you ineligible. Availability is limited to Lendmire’s 16 full-service states, which is narrower than its DSCR footprint of 41 markets, including Washington, D.C.

For the DSCR version of this question, Lendmire’s article How to Qualify for a DSCR HELOC on a High-Rise Condo With a Commercial Floor covers how rental coverage enters the picture.

Where the Rule Bends

The general rule is that a residential unit is eligible and commercial collateral is not. Several edge cases move the line.

• Parking. Commercial parking facilities can be excluded from the commercial-space calculation under the agency approach, so a building with a big garage may count lower than it looks.
• Condo-hotels. A building run as a hotel is treated as commercial. The network does not offer lines on condotels.
• Owning the retail unit. The collateral is commercial, so a HELOC is not available.
• Live-work units. A unit zoned commercial or mixed-use is not offered.
• Whole-building mixed-use. Collateral that is the entire building is treated as commercial when it has five or more units or mixes uses. This differs from a single residential unit inside a tower with retail below. DSCR or commercial financing is the alternative.
• Association business income. An association that earns meaningful income from its own business activity can fail the project review even if the commercial share is small.
• Manufactured homes, log homes and barndominiums. These sit outside these programs and the network’s DSCR programs as well.

When the Answer Is No: Your Alternatives

A decline on the HELOC does not end the equity conversation. The right alternative depends on why the file stopped.

If the problem is vesting, because the unit sits in an LLC, you can retitle to yourself or a revocable trust, or look at a DSCR cash-out refinance instead. The network’s DSCR cash-out programs for standard rentals generally top out around 75% LTV. Many want about six months of seasoning, and 1.00 is where select programs start on coverage. A separate select-lender path goes below 1.00 coverage, with leverage and terms adjusted. Clearing 1.00 is not the same as positive cash flow, because repairs, vacancy, management and utilities sit outside the calculation. Lendmire’s complete DSCR loans guide walks through how those programs work.

If the problem is the collateral, such as a commercial or live-work unit, a commercial equity line or a commercial loan is the comparison. Those products assume you own the commercial space. A HELOC assumes you own a residential unit. They are different tools for different collateral.

What the Decision Looks Like in Practice

Start with the building, because that is where most surprises come from. Gather these in order:

1. The condo declaration and site plan, to confirm the commercial share.

2. The association budget, to see whether it earns business income.

3. The master insurance certificate and any litigation disclosures.

4. Your vesting documents, to confirm title sits with you or a revocable trust.

5. Your credit profile and a count of financed properties.

Then ask the lender two questions: what is the commercial-space limit, and how does it count parking and below-grade space? A building well under the limit with clean insurance is straightforward. A borderline share calls for a lender that reviews non-warrantable projects.

If you want to see how the numbers work on your unit, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage and your goals. Reach the team at 828-256-2183 or through the quote request page.

About Lendmire

Lendmire — NMLS# 2371349 — is a mortgage broker that arranges home equity lines of credit in its 16 full-service states through wholesale lenders, on primary residences, second homes and investment properties. Every line is subject to the lender’s guidelines and full underwriting. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. HOA Docs Direct: Fannie and Freddie HOA and Condo Requirements

2. National Condo Inspections: Commercial Space Ratio

3. Fannie Mae Selling Guide, B4-2.1-03 Ineligible Projects

4. Enact: What Makes a Condominium Non-Warrantable