Commercial Loan for a Medical Office Building

Medical office buildings (MOBs) are a distinct commercial property type for investors, sitting somewhere between standard office and a more specialized healthcare-use asset. Financing one for investment purposes involves a few underwriting wrinkles that don’t come up with a general office building — largely tied to the specialized buildout and the nature of healthcare tenant leases.

What Makes MOB Underwriting Different

• Tenant credit and specialty matter more than a generic office tenant. A building anchored by a hospital system or an established multi-location practice underwrites differently than one leased to a solo practitioner, since tenant stability and the ability to pay rent through lease-term fluctuations both weigh into the risk assessment.
• Buildout specificity affects re-leasing risk. Exam rooms, plumbing for specific medical uses, and specialized equipment infrastructure can make a vacant medical suite harder and more expensive to re-lease to a different tenant than a standard open-plan office space.
• Remaining lease term is a central underwriting factor. A property with several years of remaining lease term on a creditworthy tenant is viewed very differently than one with a lease expiring soon after acquisition, since near-term rollover risk directly affects the property’s income stability.

Documentation to Have Ready

• Current rent roll showing all tenants, lease start/end dates, and rental rates
• Copies of major tenant leases, including any renewal options or early termination clauses
• Tenant improvement (TI) allowance history, since medical buildouts are often expensive and lenders want to understand what’s been invested and by whom
• Operating expense history, including any specialized maintenance tied to medical equipment infrastructure (backup power, medical gas lines, specialized HVAC)

Income Approach vs. Comparable Sales

Appraisers valuing an income-producing MOB typically weight the income approach heavily, projecting stabilized net operating income based on in-place and market rents, then applying a capitalization rate reflective of medical office assets in that market. Comparable sales exist but can be thinner than for general office product, since fewer transactions occur in any given metro for this specific property type.

Single-Tenant vs. Multi-Tenant MOBs

A single-tenant MOB leased to one medical group carries concentrated tenant risk — if that tenant leaves or fails, the entire income stream is affected. A multi-tenant MOB spreads that risk across several practices but can have more complex common-area and expense allocation considerations. Neither structure is inherently better for financing purposes; the underwriting simply weighs the specific risk profile each presents.

Frequently Asked Questions

Is financing a medical office building harder than a standard office building?

It can involve additional underwriting steps around tenant specialty and buildout, but it’s a well-established commercial property type that many capital sources actively finance, particularly when tenant credit and lease term are strong.

Does the type of medical practice in the building matter for financing?

Generally, yes — an established multi-location practice or a hospital-affiliated tenant is viewed differently than a newer solo practice, since the underwriting considers the tenant’s ability to sustain rent payments over the loan term.

What happens if a medical tenant’s lease is expiring soon after I purchase the building?

Near-term lease rollover is a real underwriting consideration and may affect loan terms, since it introduces income uncertainty. Some investors negotiate lease renewals as part of the acquisition process to address this before closing.

Can I finance a vacant medical office building as an investment property?

This is generally more difficult since there’s no in-place income to underwrite against, and buyers of vacant MOB space are typically evaluated more like a value-add or lease-up scenario with different financing considerations than a stabilized asset.

Do medical office buildings require specialized environmental review?

Standard commercial environmental due diligence (like a Phase I assessment) commonly applies, and any history of specialized medical waste handling or storage may warrant additional scrutiny depending on the property’s history.

---

Have a medical office or other commercial investment property in mind? Start with a confidential inquiry or call (907) 841-1600.

Request Commercial Info →