Glossary

Common Area Maintenance (CAM)

Updated June 2026

Common area maintenance (CAM) is the shared cost of operating and maintaining the parts of a property that all tenants use — parking lots, landscaping, lighting, sidewalks, security, and often a management fee. In most retail and multi-tenant leases, you pay a pro-rata share of CAM alongside your base rent, usually as a monthly estimate.

How CAM gets charged

During the year you pay an estimated CAM amount based on the landlord's budget. After year-end, the landlord performs a CAM reconciliation: actual expenses are tallied, your share is recalculated, and you are billed for any shortfall or credited for an overpayment.

That reconciliation is the moment that matters. It is where a budget estimate becomes a real number, and it is where errors — honest or otherwise — show up.

What to review before paying

CAM reconciliations are routinely paid without scrutiny because they arrive as one line and a due date. Before paying, the items worth checking:

• Caps. If you negotiated a cap on controllable CAM increases, confirm the charge respects it.
• Capital vs. operating. Capital improvements billed as operating expenses are a frequent overcharge.
• Pro-rata share. Verify the percentage against your square footage and the property's leasable area.
• Exclusions. Many leases exclude specific costs (landlord-side legal, certain admin fees). Confirm they are not in the pool.
• The audit window. Most leases give you a limited period to audit and dispute. Miss it and the charge stands.

For a multi-location operator, the challenge is not understanding any one reconciliation — it is that every location has one, on its own schedule, with its own lease terms. Tracking CAM as a recurring lease obligation — with the reconciliation review on a deadline and an owner — is what keeps overcharges from being paid by default.

Nova Foundry tracks CAM deadlines and reconciliation history across every location, so the review happens before the payment, not after.