Allocation Methodology Mismatch: When the Landlord Uses the Wrong Sharing Formula
If the landlord allocates costs by rentable square footage but your lease requires allocation by leasable area excluding anchor tenants, a 40% denominator inflation can add $8,000 or more to a single year's CAM bill when every line item is recalculated against the wrong base.
Definition
An allocation methodology mismatch occurs when the landlord distributes shared costs using a formula that differs from the one defined in the lease. Common allocation bases include rentable square footage, leasable area, gross leasable area excluding anchors, occupied area, and custom denominator definitions specific to the lease. When the methodology used in the reconciliation does not match the lease, the tenant may be over- or under-charged relative to their contractual obligation. This rule compares the allocation formula in the reconciliation statement against the tenant's lease to identify discrepancies in the denominator definition, the treatment of anchor space, vacant space, or excluded areas, and whether the percentage itself matches what the lease requires.
The correct allocation percentage flows directly from the denominator definition in your lease. A mismatched denominator can inflate your share across every line item in the reconciliation.
How we detect
- 1
CAMAudit extracts the tenant pro-rata share percentage and denominator definition from the lease and compares it against the allocation percentage applied in the reconciliation statement.
- 2
CAMAudit flags inconsistencies where the denominator used in the reconciliation differs from the lease definition, where anchor space or excluded areas are treated differently than specified, or where the resulting percentage does not match the lease.
- 3
CAMAudit reports the lease-defined percentage alongside the percentage actually applied so the tenant can quantify the impact across all line items.
Real-world example
A retail tenant's lease defined the denominator as gross leasable area excluding the anchor tenant's 85,000 square feet. The landlord's reconciliation applied a denominator that included the anchor space, reducing the denominator from 215,000 to 300,000 square feet and inflating every CAM line item by 40%. On a $50,000 total CAM bill, the mismatched denominator produced $20,000 in overcharges. CAMAudit flagged the anchor exclusion omission by comparing the lease definition against the percentage applied.