Full Service Lease: When No CAM Reconciliation Is Required
Full service gross leases bundle all operating expenses into base rent — no separate CAM billing. But expense stops and escalation riders create hidden reconciliation obligations landlords overlook.
Last updated: March 2026
Definition
A full service gross (FSG) lease is a commercial lease where base rent includes all building operating expenses — property taxes, insurance, utilities, maintenance, and janitorial — leaving the tenant with no additional expense obligations beyond the negotiated rent.
CAM Reconciliation at a Glance
| Attribute | Full Service Lease |
|---|---|
| CAM Included in Lease | No (typically) |
| Annual Reconciliation Required | No (see notes) |
| Gross-Up Applicable | Not typically |
| CAM Caps Applicable | Not typically |
| Common Property Types | Class A office, trophy office, downtown office buildings, government-leased space, large corporate tenants |
Who Bears Operating Expenses
Landlord covers all operating expenses from base rent revenue: property taxes, property insurance, common area utilities, janitorial, maintenance, landscaping, management fees, and all other building operating costs.
CAM Reconciliation Notes
Pure FSG leases require no annual CAM reconciliation. However, most full service leases include an expense stop provision (also called an operating expense escalation clause) that converts any expenses above the stop level into a tenant pass-through. Additionally, many FSG leases convert to a partial net structure upon renewal, adding reconciliation obligations. Always verify whether an expense stop or base year provision exists before concluding no reconciliation is needed.
Formulas
Expense Stop Pass-Through
Tenant Pass-Through = (Actual Expenses − Expense Stop Base) × Tenant Pro-Rata Share
| Variable | Definition |
|---|---|
| Actual Expenses | Total building operating expenses for the year |
| Expense Stop Base | Operating expense level per SF above which tenant pays the incremental cost |
| Tenant Pro-Rata Share | Tenant RSF / Total Building RSF |
Worked Example
Class A office building, 100,000 RSF. A tenant occupies 25,000 RSF under a full service lease with a $22/SF expense stop. Actual operating expenses for the year: $2,500,000 ($25/SF). Tenant pro-rata share: 25%.
Expense stop threshold: $22 × 100,000 = $2,200,000.
Pass-through pool: $2,500,000 − $2,200,000 = $300,000.
Tenant's share: $300,000 × 25% = $75,000.
In a pure FSG lease with no expense stop, the landlord absorbs the full $2,500,000.
Landlord Risks Under This Lease Type
Operating expense growth eroding NOI over a multi-year lease term if no expense stop was negotiated
Omitting expense stop language, leaving the landlord fully exposed to unlimited expense escalation
Tenants demanding full service terms on renewal when the building's operating cost structure has shifted significantly
Common Reconciliation Mistakes
- Failing to negotiate an expense stop, creating full landlord exposure for all future expense growth
- Confusing a full service lease with a modified gross lease — the latter has specific pass-through categories
- Not tracking actual operating expenses against the base rent amount, obscuring whether the lease is profitable
Frequently Asked Questions
What is the difference between a full service lease and a gross lease?
Both terms describe leases where base rent includes operating expenses. 'Full service gross lease' is a more specific designation — it explicitly includes services like janitorial, utilities, and maintenance in the rent. 'Gross lease' is a broader category that may or may not include all services. In practice, full service is the standard term in Class A office markets, while gross lease is used more broadly across commercial property types.
Does a full service lease ever require reconciliation?
A pure full service lease with no expense stop requires no reconciliation. However, most full service leases include an expense stop provision that passes through operating expenses above a threshold. When actual expenses exceed the stop, the landlord must calculate and bill the tenant for the overage — which is a limited form of operating expense reconciliation for the pass-through amount.
Free Calculators for This Lease Type
Related Resources
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