Tenant Work Letters, TI Allowances & Turnkey Delivery in CRE Debt
A Tenant Work Letter defines which party constructs leasehold improvements, who funds the work, and how cost overruns and delays affect rent commencement. In commercial lending, unperformed tenant work letters represent contingent capital liabilities that lenders escrow at closing.
Key Financing Parameters & Standards
Institutional Market Reference
Work Letter FormatTurnkey Delivery (Landlord builds to spec) vs Tenant Allowance (Tenant builds with landlord cash)
TI Allowance Range$25 to $75 / SF (Office / Retail) | $80 to $180+ / SF (Medical / Life Science Lab)
Rent Commencement TriggerSubstantial completion of landlord work or certificate of occupancy (CO)
Disbursement MechanicsDraw schedule tied to architect certification, general contractor lien waivers, and AIA G702/G703 forms
Lender Escrow Requirement100% to 110% of unspent TI/LC obligations escrowed in cash at loan closing
Tenant Delay PenaltiesRent commences on scheduled date regardless of completion if tenant causes construction delays
* All executed tenant work letters must be audited for unspent allowances during loan due diligence.
Turnkey Delivery vs Tenant Improvement (TI) Allowances
In commercial leasing, tenant space buildouts follow two distinct delivery methods:
Turnkey Delivery: The landlord agrees to construct the tenant’s space to complete agreed specifications at the landlord’s sole cost and risk. If construction costs escalate due to labor shortages or supply chain bottlenecks, the landlord absorbs 100% of the cost overruns.
TI Allowance: The landlord provides a fixed dollar contribution (e.g., $65/SF) toward the tenant’s buildout. The tenant manages its own contractors and absorbs any costs exceeding the allowance, shielding the landlord and lender from cost overruns.
Delayed Rent Commencement and Tenant Construction Delays
Under turnkey leases, the tenant’s obligation to begin paying rent does not commence until the landlord delivers "Substantial Completion" verified by an independent architect and local Certificate of Occupancy (CO). Construction delays directly postpone property cash flows.
Work letters include strict "Tenant Delay" provisions. If the tenant delays plan approvals, changes finish selections, or impedes construction access, the rent commencement date is deemed to occur on the date the space would have been completed but for the tenant’s delay.
Lender Due Diligence and TI/LC Escrow Holdbacks
Commercial lenders review every executed work letter prior to closing. If a property has newly signed leases with $1.5M in uncompleted tenant improvements or unpaid broker commissions, the lender will not release those loan proceeds directly to the borrower.
Instead, the lender escrows 100% to 110% of the required TI/LC capital in a controlled servicer reserve account, disbursing funds in progress draws upon receipt of architect sign-offs and unconditional mechanic’s lien waivers.
Frequently Answered Questions
Common Questions About Tenant Work Letters, TI Allowances & Turnkey Delivery in CRE Debt
Direct, transparent answers regarding underwriting standards, documentation, and process.
Work Letters
What is a tenant work letter in commercial real estate?
Direct Answer
A tenant work letter is a legal agreement attached to a commercial lease specifying the scope of construction, design plans, funding allowances, and completion deadlines for building out tenant space.
It establishes whether the landlord or tenant manages construction and who bears cost overrun liability.
Turnkey vs Allowance
Why do commercial lenders prefer TI allowances over turnkey buildouts?
Direct Answer
Lenders prefer TI allowances because the landlord’s financial obligation is capped at a fixed dollar amount, whereas turnkey projects expose the landlord and property to open-ended construction cost overruns.
Fixed allowances eliminate construction budget inflation risk for the property owner and lender.
Escrow Holdbacks
Why do lenders hold back cash for tenant improvements at loan closing?
Direct Answer
Lenders hold back unspent TI funds in an escrow reserve to ensure guaranteed capital is available to finish the buildout and achieve rent commencement, preventing mechanic’s liens on the collateral.
Funds are disbursed only as construction milestones are verified with unconditional lien waivers.
Connect with our commercial underwriting team. We provide prompt indicative pricing, leverage sizing, and lender placement strategy upon scenario review.
