Common areas
Identify the spaces and services the agreement treats as shared.
Check: Lease definition · property plan
CAM terminology
Understand CAM before reading the bill.
CAM stands for common area maintenance. Commercial leases may use it to pass through a share of shared property costs, but the exact definition, exclusions, and calculation differ by agreement.
At a glance
01
Common areas
Identify the spaces and services the agreement treats as shared.
02
Expense categories
Review included costs and exclusions, including capital work and ownership expenses.
03
Tenant share
Check the numerator, denominator, and separate cost pools used for allocation.
The signed lease, annual statement, and available records determine what can be verified.
A practical review
The terms behind the abbreviation.
A quick definition is useful, but the charge is shaped by more than the label on a statement.
Expense categories
Review included costs and exclusions, including capital work and ownership expenses.
Check: CAM clause · category ledger
Tenant share
Check the numerator, denominator, and separate cost pools used for allocation.
Check: Area schedule · share worksheet
Annual true-up
Compare the actual share with estimated payments and credits.
Check: Reconciliation · payment ledger
An illustrative example
The same word can cover different costs.
One lease may include parking-lot cleaning in CAM, while another may describe a narrower cost pool. Read the actual clause before treating a general CAM list as a rule.
Illustrative comparison. No universal CAM list overrides a signed lease.
Illustrative review worksheet
Service
Parking-lot cleaning.
Lease question
Is this area and service within the CAM definition?
Allocation
Which tenants share this cost pool?
Record
Vendor invoice and category detail.
Go one step deeper
Move from the term to the statement.
Once you know what CAM means in your lease, review how it appears on the annual reconciliation.
Related guides
Keep the document trail together.
Common area maintenance
Explore the shared-cost concept.
Read the guide ↗CAM charges
Read the billing side of CAM.
Read the guide ↗CAM vs. NNN
See how CAM relates to taxes and insurance.
Read the guide ↗Common questions
What the documents can tell you.
Is CAM charged only in NNN leases?
CAM is common in NNN arrangements, but other lease structures may also address shared operating costs. Read the agreement.
Is CAM the same as base rent?
Usually they are described separately, but the lease determines how charges are structured and billed.
Does a flagged item prove an overcharge?
No. It is a question to verify against the signed lease, the annual statement, and supporting records. A charge can be valid even when it warrants review.
Is there a standard audit deadline?
No. Read the signed lease and amendments for the trigger, period, required action, recipient, and delivery method. Different review steps may have different rules.
Your next step
Start with your own lease language.
Upload a readable signed lease for a free preview. Add an annual CAM or NNN statement if you have one, then decide whether a full report would help organize your questions.