CAM Spikes in Medical Office Buildings — What Actually Causes Them
Medical office CAM expenses often rise faster than standard office properties due to infrastructure-heavy systems, insurance volatility, property tax reassessments, and capital projects pushed through as operating expenses.
For imaging centers and outpatient practices, even a $2–$5 PSF increase can materially alter profitability and long-term lease economics. For deeper analysis, review our Medical Office Lease Audit (CAM & NNN Review).
Why Medical CAM Costs Rise Faster Than Traditional Office
- Insurance premium increases specific to healthcare assets
- Property tax reassessments driven by medical tenant demand
- Post‑COVID ventilation and filtration system upgrades
- Clinical-grade HVAC load balancing and electrical upgrades
- Security, monitoring, and regulatory compliance expansions
- Capital improvements reclassified as operating expenses
In many outpatient medical office buildings, CAM spikes intersect with triple net (NNN) lease structures, tax reassessment cycles, and insurance repricing events. Without proactive reconciliation review, medical tenants may absorb operating expense increases that exceed lease-defined caps or permissible capital pass-through language.
Real Exposure Example — 10,000 SF Imaging Center
| Year | CAM PSF | Annual CAM |
|---|---|---|
| Year 1 | $7.00 | $70,000 |
| Year 3 | $12.00 | $120,000 |
A $5 PSF increase equals $50,000 in additional annual expense. Over a 7-year lease term, that spike represents $350,000 in cumulative exposure.
Hidden Multiplier: Admin Fee Stacking
Many medical leases cap CAM admin fees at 8–12%. When base CAM rises, percentage-based admin fees automatically rise as well.
If caps are ignored, layered incorrectly, or calculated on inflated expense categories, tenants experience compounded overcharges.
Capital Improvements Disguised as CAM
Elevator modernization, structural parking repairs, roof replacements, and generator upgrades are frequently amortized and billed through CAM.
Lease language determines whether those costs are contractually permitted. Review examples of Medical Lease Overcharges & Admin Fee Violations.
Related Medical Lease Resources
CAM Spike FAQ for Medical Tenants
Why are insurance premiums rising so fast for medical buildings?
Healthcare properties carry higher liability exposure and equipment risk profiles, which can drive insurance volatility.
Can landlords increase CAM without limits?
Only if the lease permits it. Some leases contain caps on controllable expenses but exclude taxes and insurance.
How do I protect my practice from sudden CAM spikes?
Review reconciliation statements annually and verify capital expenditures, admin fee calculations, and allocation percentages.