Airport Tenant Reimbursement Agreements: A Guide for Airlines
Defining scope, managing changes, and protecting reimbursement in airline capital projects.
A tenant reimbursement agreement (TRA) defines what an airport has agreed to fund within an airline’s capital project and the conditions for reimbursement. Getting its terms right is especially important when the project changes, because the airline’s obligation to pay its contractor and the airport’s obligation to reimburse the airline arise under separate agreements.
An airline can authorize the work, receive technical acceptance from the airport, and still face a reimbursement dispute. The TRA should establish how changes will be evaluated, who can approve additional reimbursement, and how unresolved costs will be handled while construction continues.
Why airlines and airports use TRAs
An unfinished terminal space can give an airline flexibility to design around its passengers, equipment, and operations. Starting with a cold shell can make it easier to coordinate utility connections and distribution routes with the intended layout.
The airline also takes on a larger construction undertaking. Mechanical, electrical, plumbing, and life-safety improvements may be needed to make the space usable or meet the airline’s requirements. Installing these building systems can require substantial investment in property the airport owns or will own after the project is complete. A TRA allows the parties to share that investment. The airline delivers agreed infrastructure within its project, and the airport reimburses eligible costs.
Terms such as “cold shell” and “warm shell” vary by project. Lease exhibits or drawings should identify the building systems, utility capacity, and finishes the airport will provide. TRAs can also support renovations, additions, and shared infrastructure.
The airline is both tenant and project owner
The airline is both the airport’s tenant and the owner hiring the project’s designers and contractors.
| Participant | Role | Responsibilities and interests |
|---|---|---|
| Airport | Landlord and reimbursement counterparty | Airport assets, operations, standards, and funding |
| Airline | Airport tenant and owner hiring the designers and contractors | Facility performance, opening date, project cost, and reimbursement |
| Designer | Provides design and construction administration | Technical design, coordination, and construction administration |
| Contractor | Performs construction and, where applicable, preconstruction | Construction performance, price, schedule, and assigned risks |
Traditionally, there are separate design and construction agreements: the airline contracts with its designer and contractor. With alternative delivery methods, one entity can be responsible for both services.
The airport’s project manager can help coordinate reviews, access, and operations. That person represents the interests of the airport. The airline needs someone who understands its obligations under the lease, TRA, and design and construction contracts, particularly when the contractor needs a decision and the airline and airport have not agreed on who will pay.
Establish reimbursement for design and preconstruction
The airline can incur costs for design, surveys, investigations, estimating, and preconstruction well before construction starts. Reimbursement discussions belong in project planning, when the airline is deciding which services to authorize and how to fund them.
The airline should secure a signed reimbursement agreement covering the services it is authorizing, whether for design or construction. A design-phase TRA or another binding early-phase agreement can establish eligible services and a funding limit while the design is developed and construction pricing is obtained.
The agreement should address the effective date, eligible services, fees or cost basis, required records, the reimbursement process, and treatment of costs already incurred. Also address obligations if the project pauses or stops.
If the airline authorizes these services before securing reimbursement, it should understand how much it is committing and whether it can cover those costs if the airport does not reimburse them. A TRA executed after the fact should not be assumed to cover earlier spending.
Tie reimbursement to a defined scope
“Utilities available at the lease line” leaves a lot of room for interpretation. A connection point can exist without enough capacity to serve a proposed lounge. An upgrade outside the premises may be necessary to make the space usable or to meet the airline’s requirements.
Define the condition in which the airport will turn over the space and the base-building improvements needed for the airline’s project.
Once the reimbursable scope is defined, establish which costs the airport will cover and how reimbursement will be calculated. Address construction costs and related expenses, including design, construction administration, preconstruction services, project management, contingency, insurance, and taxes. Where costs serve both airport-funded and airline-funded work, agree on how they will be allocated.
Before requesting contractor pricing, the airline and airport should agree on how costs will be broken down and document those requirements in the TRA or an amendment. The breakdown should distinguish airport-reimbursable work, airline-funded work, and shared costs. Include those requirements in the contractor’s pricing instructions.
The airline and airport may each develop their own estimates, but contractor pricing provides a firmer basis for establishing the construction cost. An agreed breakdown allows both parties to compare that pricing with their estimates, identify scope gaps and cost differences, and negotiate the airport’s reimbursement amount. Once agreed, use the same breakdown in the contractor’s schedule of values and the airline’s reimbursement requests.
Compare the airport’s reimbursement commitment with the estimated cost of delivering that scope. Identify any costs the airline expects to carry, including excluded expenses and amounts above the agreed reimbursement limit. An allowance in the airport’s capital budget does not, by itself, establish a commitment to reimburse the airline.
The TRA should also explain how savings, overruns, and scope changes affect reimbursement. If eligible work costs more than anticipated, the parties need a defined process for evaluating the additional cost and obtaining any required funding approval.
Establish how the TRA will handle changes
An unforeseen condition, airport review comment, design revision, or operational requirement can create additional work without a corresponding agreement on reimbursement.
The TRA should provide a workable process for deciding whether that work qualifies, what amount is eligible, and whether additional funding authorization is required. Leaving those questions unresolved until a change occurs can force the airline to negotiate reimbursement while work is underway and contractor costs continue to accrue.
Consider a hypothetical lounge project where a mechanical system needs redesign during construction. Airport engineering accepts the proposed solution, and the airline authorizes its contractor to proceed to maintain the schedule. The airline considers the work an eligible base-building improvement. The airport questions whether the cost resulted from a design omission and should be recovered from the designer.
Technical acceptance has resolved the engineering question. Responsibility for the cost remains open.
Separate the cost of the required improvement itself from additional costs caused by redesign, rework, or delay. Whether those amounts are reimbursable or recoverable depends on the agreements and facts.
The TRA should answer the following questions:
Eligibility: How will changes be assessed against the agreed scope, including airport-directed work, unforeseen conditions, design revisions, and airline enhancements?
Authority: Who can approve reimbursement, and what additional approval is needed if a change would increase total reimbursement above the agreed limit?
Procedure: What notice, pricing, supporting records, and written authorization are required, and within what timeframes?
Interim treatment: How will urgent work, disputed costs, and payment of undisputed amounts be handled while a final decision is pending?
The change process should also address schedule effects and associated costs. An airport decision may affect an overnight work window, procurement commitment, or planned opening date. The TRA should establish expected review periods, escalation procedures, and how costs associated with delay, resequencing, acceleration, and extended services will be evaluated for reimbursement.
If the airline authorizes work before reimbursement is confirmed, document the costs it may have to fund itself and the approvals still needed from the airport. Record technical acceptance, authorization to proceed, agreement on price, and reimbursement approval separately so it is clear what each party has approved.
A useful exercise during contract negotiation is to walk a realistic change through the proposed TRA. Identify who gives notice, who evaluates eligibility, who approves the amount, how long the decision may take, and what happens if construction cannot wait. If that exercise leaves a question unanswered, revise the TRA to address it.
Make the delivery contracts support reimbursement
Review the TRA alongside the lease, design agreement, construction contract, and incorporated airport requirements. Identify the documents and actions the airline will need from its designer and contractor to obtain reimbursement, and include those obligations in their contracts.
The construction contract should require the contractor to provide change notices, pricing, and supporting records in time for the airline to meet the TRA’s deadlines. Address any requirements for audit access, insurance, warranties, and closeout documents in the appropriate design and construction contracts.
Where reimbursement depends on incurred costs, agree on the treatment of labor, equipment, materials, general conditions, and markups. Identify which costs are already included in agreed prices or fees so they are not billed again as separate charges.
Walking a sample reimbursement package through the proposed review process can reveal missing invoice detail, unclear cost allocations, or confusion about who will keep written confirmation of what the airport has approved for reimbursement.
Separate contractor contingency from owner reserves
If the construction contract includes a contractor contingency, it should specify permitted uses, required approvals, reporting requirements, and who receives any unused balance.
The airline and airport may also carry separate owner reserves for risks each retains. The airline may need funds for its own changes or costs excluded from reimbursement. The airport may reserve funds for eligible changes to its portion of the project.
Consider a hypothetical $70 million base construction cost, including contractor fees and general conditions but excluding contingency. All percentages below use that base. The example assumes a guaranteed maximum price (GMP) contract.
| Budget component | Illustrative amount | Who controls its use in this example? |
|---|---|---|
| Base construction cost | $70,000,000 | Airline administers its construction contract; airport reimbursement follows the TRA |
| Contractor contingency: 3% | $2,100,000 | Contractor administers permitted uses, subject to contractual approvals |
| Construction GMP subtotal | $72,100,000 | Governed by the airline–contractor agreement |
| Airline reserve: 2%, outside the GMP | $1,400,000 | Airline authorizes use; any airport reimbursement must satisfy the TRA |
| Airport reserve: 5%, outside the GMP | $3,500,000 | Airport’s authorized decision-maker releases funds through the applicable process |
| Total illustrative construction budget, including separate reserves | $77,000,000 | Combined planning total across the contract and separate reserves |
In this example, the $72.1 million GMP includes contractor contingency. The airline and airport carry another $4.9 million in separate reserves. The percentages are illustrative, and the table excludes design, project management, financing, airline furnishings, and other project costs. The airport’s reimbursement commitment is established separately in the TRA.
Check how each agreement uses the term “tenant contingency.” It may refer to contingency already included in the contractor’s GMP or to a separate airline reserve. If the same allowance appears in both agreements, include it only once in the total budget.
For each contingency or reserve, identify who can authorize its use and what happens to unused funds. The TRA should also explain which costs paid from contingency qualify for reimbursement and what airport approvals are required. Approval to use contractor contingency under the construction contract does not automatically constitute airport approval to reimburse that cost.
Plan for the reimbursement process and funding gap
The TRA should provide for monthly progress reimbursements, with clear requirements for supporting documents and deadlines for airport review and payment.
The airline reviews the contractor’s monthly payment application under its construction contract, including any required designer certification. It then submits a reimbursement request identifying eligible costs and providing the records required by the TRA. The airport reviews the request against the agreed scope, reimbursement limits, and payment conditions. Excluded costs, retainage, or disputed items may reduce the amount approved for reimbursement.
Establish whether airport funds can reach the airline before contractor payment is due or whether the airline must pay first and provide proof of payment. An airport review delay does not automatically extend the airline’s deadline to pay its contractor.
Compare the reimbursement schedule with the contractor’s payment deadlines and plan for any funding gap. For example, an airline paying $3 million per month in eligible costs and receiving reimbursement two months later would need approximately $6 million to cover that gap. Additional funding may be needed for amounts the airport withholds or disputes.
Track eligible costs paid, reimbursement requested, and reimbursement received so the outstanding balance is clear. The facility may open before the airport makes its final payment, so allow enough budget and staff time to complete the remaining paperwork and resolve unpaid requests.
Put experienced representation on the airline’s side
Counsel advises on legal terms and contractual rights. The business team sets commercial priorities. Airport staff represent the airport. The airline also needs a project representative who has navigated TRAs and can connect those negotiations to the work being designed, priced, and built.
During negotiations, that representative compares the proposed reimbursement scope with the estimate and delivery contracts, identifies commitments outside the reimbursement amount, and checks whether the change and approval processes can meet the project’s schedule.
During delivery, they evaluate airport review comments against the agreed requirements, assess whether contractor change requests are justified under the construction contract, and check whether the added costs fall within the TRA’s reimbursable scope. They prepare required notices, keep supporting records, and obtain decisions from authorized parties. They keep airline leadership informed of what the airline owes, what it expects the airport to reimburse, and what remains unresolved.
That representative must work effectively with airport staff while remaining accountable to the airline for protecting its interests.
Considering a tenant reimbursement agreement?
Yukon Construction Consulting brings airport TRA experience to independent owner’s representation for airline capital projects. We help airlines assess proposed terms, connect reimbursement requirements to their delivery contracts, and manage cost and approval decisions throughout the project.
Contact YCC to discuss your project’s reimbursement scope, delivery approach, and owner representation needs.
