Buying Your Business Space: How Commercial Real Estate Loans Work

At some point most owners with a physical location ask the same question: why am I paying rent on a building I could own?

It's a reasonable instinct. Rent goes up, leases expire, landlords sell buildings out from under good tenants. Owning removes those risks and replaces a permanent expense with an asset.

It also concentrates a large amount of capital in one illiquid place, adds maintenance obligations you currently hand to someone else, and reduces your ability to move if the business changes shape. Both of those are true at once, and the right answer depends on specifics rather than principle.

Here's how the financing actually works, and what the decision turns on.

Owner-occupied is a different product

The first distinction matters more than anything else. A loan to buy a building your business operates out of is owner-occupied commercial real estate. A loan to buy a building you'll rent to other people is investment property. They're underwritten differently, priced differently, and only one of them has government-backed options.

Owner-occupied is the favorable category. The reasoning is that your business is the tenant, so the lender is underwriting a cash flow they can already see rather than projected rent from strangers.

The threshold is occupancy. SBA programs generally require the business to occupy at least 51% of an existing building, or 60% of new construction. You can lease out the remainder — many owners buy a building larger than they need and rent part of it — but you have to hold the majority yourself.

If you're buying purely as an investment, none of what follows applies. That's conventional investment lending, typically 25–30% down, and a separate conversation.

The three routes

SBA 504. The program built for this. The structure is layered: roughly 50% from a conventional lender, roughly 40% from a Certified Development Company with an SBA guarantee, and about 10% from you. That owner contribution can rise to 15% for a special-purpose property or a newer business, and 20% if both apply.

The CDC portion carries a long-term fixed rate — 10, 20, or 25 years — which is the real attraction. In a business where nearly every other debt is variable or short-term, a fixed 25-year payment on your largest obligation is a genuine advantage. The tradeoff is process: two lenders, more documentation, and a longer timeline.

SBA 7(a). Also usable for real estate, up to $5 million, with 25-year terms for property. Typically simpler to close than 504 and more flexible if you're combining a building purchase with working capital or equipment in one transaction. Usually a variable rate, which is the main difference from 504. Our comparison of 7(a) versus 504 covers when each fits.

Conventional commercial mortgage. A bank or credit union lending directly. Generally 20–30% down, and — this is the part owners miss — usually a 5 to 10 year term amortized over 20 to 25 years, with a balloon payment at the end. You'll refinance somewhere in year seven, at whatever rates and whatever condition your business is in at that time. That refinance risk is precisely what the SBA structures remove.

What the underwriting looks at

Two things, weighted differently than in a regular business loan.

The business's ability to pay. Same debt service coverage calculation as any other loan, with one useful wrinkle: your current rent disappears from the expense side and is replaced by the mortgage payment. If the payment is close to the rent, coverage barely moves — which is often the strongest argument in the file.

The property itself. This is new territory for most owners:

• Appraisal. The lender finances against appraised value, not the purchase price. If the appraisal comes in low, you cover the gap in cash. Budget for that possibility.
• Environmental review. Most commercial purchases require at least an environmental questionnaire, and a Phase I assessment for many property types. Former gas stations, dry cleaners, auto shops, and industrial sites trigger deeper review. Contamination findings can stop a deal entirely.
• Property condition. Roof, HVAC, structure, code compliance. Deferred maintenance either reduces the value or becomes a required repair escrow.
• Special-purpose penalty. A building configured for one narrow use — a car wash, a restaurant with a full commercial kitchen, a medical suite — is harder to resell. That raises the required down payment and tightens the terms. The collateral logic is the same one described in restaurant financing: the more specific the asset, the thinner the resale market.

The costs nobody budgets for

The down payment is the number everyone focuses on. The rest routinely adds several percent of the purchase price on top:

Appraisal, environmental assessment, title insurance, survey, attorney fees, lender and SBA fees, and — the large one — property taxes and insurance, which you now pay directly. Under a triple-net lease you were probably already covering those; under a gross lease you weren't, and it's a new line item.

Then maintenance. The landlord's roof is now your roof. A reasonable planning figure is 1–2% of building value annually for reserves, more for an older property.

Add it up before deciding. A purchase that looks cheaper than rent on the monthly payment alone frequently isn't once taxes, insurance, and reserves are in.

When buying makes sense

A few conditions where the math tends to work:

• Your business is stable and the location is settled. Three-plus years of consistent operation, and no realistic scenario where you need a different kind of space in the next five.
• The payment is close to your current rent. The most common good outcome: comparable monthly cost, but you're building equity instead of paying someone else's.
• You have the down payment without draining working capital. This is the one that breaks deals quietly. An owner who puts every dollar into the purchase and has nothing left for a slow quarter has traded one risk for a worse one.
• The space is bigger than you need. Tenant income from the remainder changes the math substantially, and SBA rules allow it as long as you occupy the majority.
• Rent in your market is climbing faster than the mortgage would. Fixing your largest occupancy cost for 25 years is worth real money in a tightening market.

When it doesn't

• Your business is growing fast or its footprint is uncertain. Outgrowing a building you own is a much harder problem than not renewing a lease.
• The down payment is most of your reserves. See above — this is the single most common way a good purchase turns into a bad year.
• The property is special-purpose and the business is new. Highest down payment, tightest terms, weakest resale.
• You want the appreciation more than the building. If the case for buying rests mainly on the property going up in value, you're making an investment decision using your operating business as the entry ticket. That can work, but be honest that it's a different decision.

Timeline and preparation

Plan on 60 to 90 days, sometimes longer for 504 with two lenders in the deal. Purchase agreements need financing contingencies with realistic dates — our approval timeline guide covers what drives the delays.

On top of the standard document package, expect:

• Three years of business tax returns and financial statements
• Personal financial statement for every 20%+ owner
• The purchase agreement
• Current lease, for the rent comparison
• Rent roll and tenant leases, if part of the building is occupied
• Property documents from the seller — tax bills, insurance, utility history, any prior environmental reports

The rent comparison is worth preparing yourself rather than waiting to be asked: current rent, projected mortgage payment, taxes, insurance, and reserves, side by side. It's the clearest way to show you've thought about the full cost rather than just the note.

The short version

Owner-occupied real estate has the most favorable terms available to a small business — 10% down and a 25-year fixed rate is not a structure that exists anywhere else in this market. That's a strong argument for buying when the business is stable and the space fits.

It's not an argument for buying because rent feels wasteful. Run the full comparison including taxes, insurance, and reserves, confirm the down payment doesn't consume your operating cushion, and make sure you'd still want this building in five years.

Ready to see where your business stands? Try PreCap Logic free at getprecap.com — no signup required.