When most people think about commercial real estate, they picture apartment complexes or downtown office towers.

Medical office doesn't come up much. It's the dentist on the corner, the urgent care by the grocery store, the vet clinic you drive past every day.

It's also one of the steadiest corners of commercial real estate. Here's how it works, why it holds up, and where it can go wrong.

What counts as "medical office"?

The term covers a few different kinds of buildings:

• Hospital campus buildings. Multi-story buildings on or next to a hospital, usually with many doctors' practices inside. Big public REITs (real estate companies that trade on the stock market) own a lot of these.

• Outpatient centers. Off-campus buildings for surgery centers, imaging, physical therapy, and specialists.

• Single-tenant "retail medical." Smaller standalone buildings, usually 1,500 to 15,000 square feet, leased to one practice. Think dental, orthodontics, dermatology, veterinary, and urgent care.

The medical office fund I partner on focuses on that last group. It's run by an operating team with deep healthcare real estate experience, including people who have run large dental groups and negotiated well over 100 triple net leases. These buildings are small enough that big institutions mostly ignore them, which is part of the opportunity.

Why medical tenants rarely move

Here's the part most people miss.

When an apartment tenant leaves, you paint, clean the carpet, and list the unit. When a dental practice leaves, the next tenant has to rebuild the inside of the building.

A dental office needs plumbing and suction at every chair, compressed air lines, x-ray shielding, sterilization rooms, and a lot of electrical work. Contractor estimates put the build-out for a typical 2,500 square foot dental office at roughly $250,000 to $500,000 for construction alone, and $750,000 or more once it's fully equipped.

So once a practice is set up, moving is expensive. Their patients also live nearby, and a move risks losing them.

That's why medical tenants tend to renew. They aren't doing you a favor. Leaving costs them too much.

Demand is growing, and new supply isn't keeping up

Healthcare keeps shifting out of hospitals and into smaller outpatient buildings closer to where people live. It's cheaper for insurers and more convenient for patients.

According to JLL's 2026 Medical Outpatient Building Perspective, occupancy in medical outpatient buildings hit a record 92.7%, and new construction starts have been running at only about 1% of total inventory.

More demand plus very little new building means existing medical buildings stay full.

Why good medical buildings come up for sale

This surprised me when I first learned it.

Private equity firms have been buying up dental, veterinary, and specialty practices across the country. The groups they build are often called DSOs (dental service organizations) or MSOs (medical service organizations).

When a PE-backed group buys a practice, it wants the business, not the building. Many will sell the real estate and sign a long-term lease to stay in it. That's called a sale-leaseback.

Practice brokers are focused on getting the best price for the practice, not the building. So the real estate sometimes sells for less than it would on the open market. That gap is where a disciplined buyer can find deals at better prices.

What a good medical office deal looks like

These are the screening rules the operating team behind our medical office fund uses:

• Rent under 10% of the tenant's revenue. If rent is a small slice of what the practice brings in, there's a lot of room before rent becomes a problem.

• A strong practice. High patient reviews (around 4.5 stars or better) and a track record, not a brand-new startup practice.

• A triple net lease. The tenant pays property taxes, insurance, and maintenance. More on that in What Is a Triple Net Lease?

• A guarantee. Ideally a parent company stands behind the lease, not just one doctor.

• A real market. At least 50,000 people within 10 miles, and a population that's stable or growing.

• Reasonable debt. Conservative leverage with fixed-rate loans, so a rate spike doesn't force a sale.

The risks (and there are real ones)

Medical office is steady, but it isn't risk-free. Here's what to watch for.

Specialized space cuts both ways. The same build-out that keeps a tenant in place makes the building harder to re-lease if that tenant leaves. A dental office suits another dentist well, but it doesn't suit much else.

PE-backed tenants carry debt. A corporate guarantee is only as good as the company behind it. Some PE-backed platforms are heavily leveraged. You want to see their financials, not just their logo.

One tenant per building. A single-tenant building is either 100% leased or 0% leased. That's why diversification across many buildings matters.

Interest rates still move prices. Even when rent is paid on time, rising rates can push building values down. Medical office values dipped in 2022 and 2023 along with the rest of commercial real estate.

Healthcare policy can change. Specialties that depend heavily on Medicare or Medicaid carry more policy risk. Dental relies mostly on private insurance and out-of-pocket payments, which is one reason it's a favorite tenant type.

How investors get exposure

There are three main ways in:

1. Public healthcare REITs. You can buy shares in a brokerage account today. They're easy to buy and sell, but the share price moves with the stock market, and you don't get the depreciation benefits of owning property directly. See Syndications vs. REITs.

2. Buying a building yourself. You get full control, but you need a lot of capital, and all your eggs are in one tenant's basket.

3. Private funds and syndications. You invest alongside other accredited investors in a portfolio of buildings run by a sponsor. It's passive and diversified, but your money is tied up for years, and everything depends on picking the right sponsor. Here's how I vet sponsors.

The bottom line

Medical office won't make headlines. The tenants provide care people need, the leases are long, and moving out is expensive for them.

That combination is why I've moved more of my own investing toward it. It still takes careful underwriting, though. A good tenant in the wrong building, or a good building with too much debt, can still lose money.

If you want a checklist for screening deals and sponsors, grab the free Engineer's Investing Toolkit. Or schedule an intro call and we can walk through it together.