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Commercial Mortgage 101

by | December 4, 2025

Everything You Need to Know Before Financing Your Next Investment Property or Business Space

When you hear people talking about mortgages, they’re usually chatting about homes — houses, condos, maybe even a cute little duplex. But there’s a whole other world of financing out there: commercial mortgages. And let me tell you, it’s a different beast altogether. Whether you’re looking to buy your own storefront, scoop up an apartment building, or finally invest in that industrial unit your buddy keeps bugging you about, understanding how commercial mortgages work is absolutely crucial.

It’s not complicated, but it’s also not the same as your typical residential deal. So let’s roll up our sleeves, keep it plain, simple, and real — and talk about what you need to know before diving into commercial real estate.

Here’s What I’m Going to Cover:

What is a Commercial Mortgage?

What Types of Properties Need a Commercial Mortgage?

How Do Commercial Mortgages Work?

What Lenders Look For in Commercial Mortgage Deals

How You Can Use This Knowledge in Real Life

What is a Commercial Mortgage?

At its core, a commercial mortgage is a loan secured by property that’s primarily used for business purposes or income generation, not for someone’s primary residence. It’s designed to finance spaces where business happens — whether that’s renting out apartments, selling coffee, manufacturing widgets, or housing offices.

Unlike your typical home loan, where the bank cares mostly about your income and credit score, a commercial mortgage focuses more on the building itself and how it makes money. It’s less about you personally and more about whether the property is a good investment — for you and for the lender.

What Types of Properties Need a Commercial Mortgage?

If you’re wondering whether a property deal falls under the commercial umbrella, here’s a good rule of thumb:
If it’s being used primarily to run a business or to generate rental income on a larger scale, it probably needs a commercial mortgage.

Here are some common examples:

  • Office buildings
  • Retail plazas
  • Warehouses and industrial spaces
  • Apartment buildings with 5 units or more
  • Hotels and motels
  • Self-storage facilities
  • Land purchased for future development
  • Specialized properties like gas stations, churches, or golf courses

Even mixed-use buildings (think: apartments upstairs, retail downstairs) can tip into commercial depending on how much of the income or square footage comes from the business side.

How Do Commercial Mortgages Work?

Here’s where things get a little more serious. A commercial mortgage doesn’t follow the same playbook as a residential one.

What’s Different?

  • Down Payments: You’ll need more skin in the game. Expect 25%-35% down, sometimes even more.
  • Rates: Rates are typically higher. Why? Because commercial properties carry more risk. Businesses fail, tenants move out, economies shift.
  • Terms: Terms are usually shorter — think 5-10 years amortized over 20-25 years. Balloon payments at maturity are common.
  • Underwriting: Lenders scrutinize everything — not just you, but the property’s cash flow, existing leases, and future earning potential.

Lenders will often require:

  • Rent rolls
  • Leases
  • Business financials
  • Environmental reports
  • Appraisals from commercial specialists

What Lenders Look For in Commercial Mortgage Deals

The main thing? Can the property pay its own bills.

In residential mortgages, lenders ask: “Can YOU afford this?”
In commercial, lenders ask: “Can THIS PROPERTY afford itself?”

Key metrics lenders love:

  • Debt Service Coverage Ratio (DSCR): How easily the property’s income covers its expenses and debt payments. A DSCR of 1.20+ is often required.
  • Net Operating Income (NOI): Income minus expenses (excluding mortgage payments).
  • Loan-to-Value (LTV): How much you’re borrowing versus the property’s appraised value.

Sure, your own financial strength matters — but it’s secondary to whether the property is a solid, income-producing asset.

How You Can Use This Knowledge in Real Life

Understanding this stuff upfront saves you a ton of time, money, and headaches. Let’s say you’re:

  • Buying your first small apartment building. Once you hit 5+ units, you’re in commercial territory. Prepare for a bigger down payment and a lender who’s going to dissect your rent roll like a science project.
  • Opening a retail space. Your business’s financials, plus the strength of your lease (or your tenants’ leases), will weigh heavily in getting approved.
  • Investing in a warehouse. The lender wants to know how it’ll be leased, who your tenants are, and whether the local economy supports demand for this kind of space.

When you know what lenders expect, you can prepare properly:

  1. Gather your financials and property documents early.
  2. Budget for a bigger down payment and higher rates.
  3. Align yourself with professionals (like me) who understand this world inside and out.

Allen’s Final Thoughts

Here’s the big takeaway: Commercial mortgages are grown-up deals. They’re not scary, but they’re definitely more complex than your typical home loan. They require more capital, more preparation, and more patience. But they also open doors to bigger opportunities — higher returns, passive income, and the kind of wealth-building that residential mortgages just can’t match.

The smartest investors and business owners aren’t just looking for financing. They’re looking for strategy. And that’s where I come in.

How I Can Help

As your mortgage agent, I’m not just here to fetch rates. I’m here to help you navigate the commercial mortgage maze with clarity and confidence.

Here’s what I can do for you:

  • Help you determine if commercial financing is the right fit for your project.
  • Connect you with lenders who understand and actively fund commercial deals.
  • Prepare your application so it speaks lenders’ language — financials, projections, rent rolls, the whole nine yards.
  • Walk you through rate negotiations, term structures, and repayment options.
  • Look at your long-term goals so today’s financing doesn’t box you in tomorrow.

Whether you’re buying your first commercial property or expanding your portfolio, I’m here to make sure you’re asking the right questions and getting the right answers — every step of the way.

When you’re ready to get serious about commercial real estate, let’s talk. I’ll help you turn your vision into something concrete — literally.

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Allen Ehlert

Allen Ehlert

Allen Ehlert is a licensed mortgage agent. He has four university degrees, including two Masters degrees, and specializes in real estate finance, development, and investing. Allen Ehlert has decades of independent consulting experience for companies and governments, including the Ontario Real Estate Association, Deloitte, City of Toronto, Enbridge, and the Ministry of Finance.

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