By Moshe Botnick, Milvado Realty · June 1, 2026 · 9 min read
Common Area Maintenance — CAM — is one of the least understood and most error-prone parts of owning commercial property in Las Vegas. Done well, it keeps a building’s shared costs fairly shared and protects net operating income. Done poorly, it quietly leaks money every year and breeds disputes with tenants. This guide explains how CAM and the annual reconciliation actually work, and how owners protect themselves.
What is CAM?
Common Area Maintenance refers to the shared operating costs of a multi-tenant property: parking-lot upkeep, landscaping, exterior lighting, common-area utilities, security, trash, snow or storm cleanup, repairs to shared systems, and a management fee. In a multi-tenant retail center, office building, or industrial park, each tenant reimburses its pro-rata share of these costs on top of base rent.
On a triple-net (NNN) lease — common in Las Vegas retail and industrial — tenants also reimburse their share of property taxes and building insurance. CAM is the “maintenance” leg of that net structure.
How CAM is billed during the year
Owners do not wait until year-end to collect. They build an annual CAM budget, divide it across tenants by pro-rata share, and bill a monthly estimate alongside rent. A tenant occupying 2,000 square feet in a 20,000-square-foot center, for example, carries roughly a 10% share of recoverable common costs.
The annual reconciliation (the “true-up”)
After the year closes, the owner tallies the actual common-area expenses and compares them to the estimates collected. That comparison is the reconciliation:
- If actual costs exceeded the estimates collected, the tenant owes the difference (a balance bill).
- If actual costs came in under the estimates, the tenant receives a credit or refund.
Reconciliation statements should be clear, itemized, and sent on time. Many leases require the owner to reconcile within a set window — and some bar recovery of underbilled amounts if the owner misses that deadline. Sloppy or late reconciliations are one of the most common ways Las Vegas owners leave money on the table.
What is recoverable — and what usually is not
The lease governs everything, but as a general rule:
- Usually recoverable: routine repairs and maintenance, landscaping, parking-lot care, common-area utilities, security, and a capped management or administrative fee.
- Often excluded or disputed: capital improvements (a full roof replacement versus a patch), leasing commissions, the owner’s debt service, costs to correct original construction defects, and expenses that benefit only one tenant.
The capital-versus-expense line is where many disagreements live. Precise lease language at signing prevents most of them.
Gross-ups, caps, and base years
Three provisions decide who absorbs cost in the real world:
- Gross-up: in a partially vacant building, variable expenses are calculated as if the property were near-fully occupied (often 95–100%). This protects the owner from eating the vacant space’s share of variable recoverable costs during lease-up — a detail that matters enormously in a half-leased center.
- Caps: tenants often negotiate a ceiling on annual increases in controllable CAM (say 5% per year). Taxes and insurance are usually excluded from the cap.
- Administrative fee: a management or admin fee, commonly a defined percentage of CAM, should be spelled out so it is not contested later.
Common CAM disputes in Las Vegas
The recurring fights we see: vague lease definitions, capital costs billed as operating expenses, management fees stacked on top of already-included costs, failure to gross up a partly vacant building, missed reconciliation deadlines, and tenant audit requests that the owner cannot answer because records are disorganized.
How owners protect NOI
The practical playbook is simple but disciplined: budget accurately, bill estimates correctly, reconcile promptly with itemized statements, apply gross-ups where the lease allows, track caps and base years per tenant, and keep clean, audit-ready records. Most leakage is not dramatic — it is a few percent here and there that compounds across a portfolio.
Where Milvado Realty fits
Milvado Realty handles CAM reconciliation, commercial property management, and NNN lease administration for owners across the Las Vegas Valley. We keep the records clean, the statements clear, and the recoveries complete — so your net income reflects what the lease actually entitles you to. If you also want the broader picture, our owner’s guide to commercial property management covers the rest of the job, and our owner services page explains reporting and the owner portal.
Questions about CAM on your property? Talk to a local commercial expert →
