How On-Campus MOB Financing Works in Phoenix
Phoenix has emerged as one of the most active medical office markets in the country, and the on-campus segment sits at the top of the capital markets hierarchy within that market. The combination of population growth, an aging demographic base, and the presence of nationally recognized health systems including Mayo Clinic Arizona, Banner Health, Dignity Health, and HonorHealth has created deep institutional demand for on-campus medical office product. Assets located on or immediately adjacent to major hospital campuses in this metro carry a risk profile that most lenders treat as a category apart from general office or even suburban medical office.
The premier concentration points in Phoenix for on-campus MOB financing are the Scottsdale Healthcare Corridor anchored by Mayo Clinic's Arizona campus and the Banner University Medical Center footprint in central Phoenix. These are the addresses where life insurance company capital competes most aggressively and where cap rate compression relative to the broader MOB market is most pronounced. Health system tenants on long-term net leases with corporate guaranties are the underwriting foundation, and lenders pricing these deals are effectively underwriting the credit of the health system more than the real estate itself. That dynamic defines how the capital stack gets structured and who the most competitive lenders are.
The East Valley markets of Gilbert, Chandler, and Mesa are seeing a secondary wave of on-campus and campus-adjacent development tied to Banner's regional hospital expansion and population-driven growth in the Southeast Valley. These assets can access strong capital, though the lender universe broadens slightly from the tight life company execution available at the premier campuses. Sponsors evaluating financing across Phoenix submarkets should understand that lender selection and achievable leverage are meaningfully different depending on whether the asset sits at a flagship campus or in a growing suburban hospital catchment area.
Lender Appetite and Capital Stack for Phoenix On-Campus MOB
Life insurance companies are the most competitive permanent lenders for stabilized on-campus MOBs anchored by investment-grade or near-investment-grade health systems in Phoenix. For assets adjacent to the Mayo Clinic or Banner campuses with long-term net leases in place, life company execution typically prices in the range of 125 to 175 basis points over the 10-year Treasury. With the 10-year Treasury around 4.30 percent in 2026, all-in fixed rates for the best-in-class assets are in the mid-to-upper 5 percent range. LTV for life company execution generally runs 60 to 70 percent, with 25 to 30 year amortization and prepayment structured as yield maintenance or a declining schedule. Non-recourse is standard at this tier.
CMBS is an active alternative for stabilized on-campus and campus-adjacent product at $10 million and above, particularly in the East Valley submarkets where life company appetite becomes more selective. CMBS pricing runs approximately 175 to 250 basis points over the 10-year Treasury, with LTV up to 65 to 75 percent depending on credit quality and lease term. Defeasance is the standard prepayment structure for CMBS execution. For transitional assets, lease-up situations, or construction ahead of a permanent takeout, debt funds and Arizona-based regional banks provide bridge capital at floating rates generally in the 150 to 250 basis point range over SOFR, which sits near 3.60 percent. Bridge terms run 2 to 3 years with extension options and are structured with a clear path to permanent financing as the exit.
Sale-leaseback structures are an additional capital markets tool worth noting in Phoenix. Banner Health and regional health systems periodically monetize campus real estate assets through structured sale-leasebacks, and these transactions attract both life company and institutional equity capital given the investment-grade tenant profile. Sponsors evaluating a sale-leaseback should understand that lender underwriting will focus heavily on the initial lease term remaining, rent escalation structure, and whether the health system's corporate credit supports a guaranty.
Underwriting Criteria That Matter in Phoenix
For on-campus MOBs in Phoenix, the first thing a capital markets lender underwrites is tenant credit and lease structure. The health system anchor, whether Mayo Clinic, Banner Health, HonorHealth, or another regional operator, carries a credit profile that drives pricing more than property metrics. Lenders will pull audited financials on the health system, assess the corporate guaranty structure, and evaluate whether the lease obligates a creditworthy entity or a subsidiary. Physician group tenants affiliated with a health system but without a system guaranty are underwritten differently and will not achieve the same execution.
Building specifications matter significantly in this segment. Medical-grade HVAC, reinforced structural floors for imaging equipment, hospital-level electrical capacity, and ADA compliance throughout are baseline expectations. Lenders will scrutinize the building systems in detail for assets presented as medical-grade, and deficiencies discovered during due diligence are a common source of deal retrade or conditioned approvals. For properties with imaging or surgery center components, radiation shielding and equipment encumbrances require specific disclosure and affect collateral analysis.
Phoenix-specific underwriting considerations include a close review of certificate of need dynamics and regulatory approvals for clinical services, particularly for surgery centers and diagnostic imaging facilities. Arizona has a relatively open regulatory environment, but any pending regulatory change affecting a tenant's service line adds risk that lenders will price. Environmental review in Maricopa County, particularly Phase I requirements for sites near historic agricultural or industrial use, is a standard and occasionally time-consuming part of due diligence.
Typical Deal Profile and Timeline
A representative on-campus MOB transaction in Phoenix at the institutional tier involves a stabilized asset in the $20 million to $80 million range, anchored by a health system tenant on a lease with 10 or more years of term remaining and a corporate-level guaranty. Sponsors at this tier are typically institutional developers, healthcare REITs, or sophisticated private equity sponsors with prior healthcare real estate experience. Lenders in the life company and CMBS market expect demonstrated familiarity with medical office operations, existing health system relationships, and a clean ownership structure. First-time healthcare real estate sponsors face a steeper path to the most competitive execution and may find bank or debt fund capital a more realistic starting point.
Realistic timeline for a permanent life company execution runs 60 to 90 days from a signed term sheet through closing, assuming clean title, completed environmental, and no tenant estoppel complications. CMBS execution on a straightforward stabilized deal runs similarly. Bridge loan closings through a bank or debt fund can move faster, in the 45 to 60 day range, when the sponsor is organized and third-party reports are ordered promptly. The most common source of timeline extension in Phoenix transactions is tenant estoppel and SNDA execution with large health system tenants, whose internal legal and real estate departments operate on institutional timelines that do not always align with lender requirements.
Common Execution Pitfalls Specific to Phoenix
The first and most consistent pitfall is presenting a deal as on-campus when the asset is functionally off-campus. Lenders that compete aggressively for true on-campus assets adjacent to Mayo Clinic or Banner will not apply the same pricing to a campus-proximate suburban MOB two miles from a hospital. Accurate positioning at the start of the marketing process saves significant time and protects sponsor credibility with the lender community.
Second, sponsors routinely underestimate the complexity of health system lease abstractions in due diligence. Banner and other regional health systems use sophisticated lease documents with renewal options, termination rights, and co-tenancy provisions that require careful legal review before a lender will issue a final commitment. Incomplete or inaccurate abstractions provided during the term sheet process create problems at closing that could have been addressed earlier.
Third, construction cost assumptions on medical office product in the Phoenix market have shifted materially over recent cycles. Sponsors pursuing development or renovation of on-campus assets should have current general contractor pricing before approaching construction lenders. Lenders in Arizona are closely scrutinizing cost-to-complete projections, and deals underwritten to pre-2023 cost assumptions are frequently retrade candidates.
Fourth, the East Valley pipeline is producing competing supply at a pace that is attracting more lender scrutiny on lease-up assumptions. CMBS and bridge lenders are increasingly requiring evidence of pre-leasing commitment or health system letters of intent before advancing on speculative or partially leased product, even in high-growth submarkets like Gilbert and Queen Creek.
If you have an on-campus MOB deal under contract or in predevelopment in the Phoenix metro, CLS CRE has the lender relationships and transaction experience to move your deal through capital markets efficiently. Our national medical office track record spans life company, CMBS, and bridge execution across the full spectrum of healthcare real estate asset types. Contact Trevor Damyan at CLS CRE to review your deal and access the full on-campus MOB program guide.