A tenant improvement allowance is a sum a landlord agrees to contribute toward the cost of building out or renovating a leased space to suit the tenant. It is usually quoted as a dollar amount per rentable square foot and is one of the largest concessions in a commercial lease. The allowance lowers the tenant's out-of-pocket buildout cost, and the landlord recovers its investment through the rent charged over the term.
What a TI Allowance Covers
A tenant improvement allowance is meant to fund the physical work that makes a space usable for a specific tenant. That typically includes construction of interior walls, flooring, ceilings, lighting, HVAC distribution, electrical and data infrastructure, doors, paint, and built-in millwork. The scope is defined in the lease and in an attached work letter that spells out who builds what and to what standard.
The allowance usually does not cover the tenant's furniture, moveable equipment, personal property, or moving costs, though some leases allow a portion to be applied to those items or to soft costs such as architectural and engineering fees. What counts as an eligible cost is a negotiated point, and the lease language controls. Because a tenant improvement allowance is a concession rather than a gift, its size trades off against other lease terms: a larger allowance often comes with higher base rent, and a lower allowance with lower rent.
How the Allowance Is Sized
The allowance is almost always expressed per rentable square foot. A grant of 60 dollars per square foot on 15,000 rentable square feet is a 900,000 dollar allowance. Because it is quoted on rentable square feet, the load factor affects the total, and the same per-foot figure yields more dollars in a building with a higher rentable area.
The size of the allowance tracks several factors. Longer lease terms support larger allowances because the landlord has more years of rent over which to recover the investment. New or first-generation space, which has never been built out, usually carries a larger allowance than second-generation space that only needs refresh work. Market conditions matter too: in a soft leasing market, landlords offer richer allowances to win tenants.
Buildout type | Typical allowance driver |
First-generation shell | Larger allowance, no existing improvements |
Second-generation refresh | Smaller allowance, reusable improvements |
Long lease term | Larger allowance, more years to amortize |
Short lease term | Smaller allowance, limited recovery window |
Turnkey vs. Allowance vs. Amortized
There are three common ways a landlord funds tenant improvements, and they allocate risk differently.
A turnkey buildout means the landlord delivers the finished space to an agreed specification and bears the construction cost and overrun risk. The tenant does not manage the work or the budget. This shifts cost overrun risk to the landlord but gives the tenant less control over the finishes.
An allowance means the landlord contributes a fixed dollar amount and the tenant manages the buildout. If the work costs more than the allowance, the tenant pays the difference out of pocket. If it costs less, the treatment of the unused amount depends on the lease. This is the most common structure and puts overrun risk on the tenant.
Amortized (or additional) TI means the landlord funds costs above the base allowance but recovers them by adding an amount to rent over the term, usually with interest. This lets a tenant get more buildout dollars up front in exchange for higher rent, effectively a loan from the landlord.
Structure | Who manages buildout | Who bears overruns | Recovery |
Turnkey | Landlord | Landlord | Built into rent |
Allowance | Tenant | Tenant | Built into rent |
Amortized TI | Tenant | Tenant / landlord | Added to rent with interest |
How the Allowance Is Disbursed
The allowance is a reimbursement mechanism, not a lump sum handed over at signing. The two common disbursement methods are draws during construction and a single reimbursement at completion.
Under a draw structure, the tenant or its contractor submits invoices, lien waivers, and proof of payment at construction milestones, and the landlord funds each approved draw. Under a completion reimbursement, the tenant pays for the work, and the landlord reimburses the eligible costs once the buildout is finished and documentation is submitted, often including a certificate of occupancy and final lien waivers.
Either way, disbursement is conditioned on documentation. Landlords require proof that the work was done, that it falls within eligible costs, and that subcontractors have been paid and waived their lien rights. Abstractors should capture the disbursement method and the conditions, because a tenant that expects cash at signing and instead faces a completion reimbursement has a real cash-flow gap to fund.
Unused Allowance and Deadlines
Two provisions frequently trip up tenants: what happens to unused allowance, and the deadline to use it.
If the buildout costs less than the allowance, the excess may be forfeited, applied as a rent credit, or usable for furniture and soft costs, depending on the lease. Many landlords let unused allowance be forfeited, so a tenant that overestimates its buildout leaves money on the table. Others permit the balance to offset rent, which preserves its value.
Allowances also carry a deadline. The tenant typically must complete the work and submit for reimbursement within a defined window, often 6 to 12 months from commencement. Miss the deadline and the unused allowance can be forfeited entirely. This is a high-risk field because the money is real and the forfeiture is total.
How to Abstract a TI Allowance
A complete abstract captures more than the dollar figure. The fields below reflect the questions an asset manager or tenant-side analyst will ask.
Field | What to capture |
Amount | Per RSF and total dollars |
Structure | Turnkey, allowance, or amortized |
Amortized portion | Rate and interest, if any |
Eligible costs | Hard costs only, or soft costs and FF&E |
Disbursement | Draws or completion reimbursement |
Conditions | Lien waivers, documentation, occupancy |
Unused amount | Forfeited, rent credit, or applicable to soft costs |
Deadline | Date by which work and submission must occur |
The allowance also flows into economic comparisons. Because it is a concession, it reduces effective rent: spread across the term, a 900,000 dollar allowance lowers the net effective rent the landlord collects. Any comparison of competing leases must value the allowance alongside free rent and other contributions. Capturing these fields precisely is a core part of any lease abstraction and one of the more error-prone areas because the terms are spread across the lease body and the work letter.
Worked Example
Consider a hypothetical tenant leasing 15,000 rentable square feet on a seven-year term with a 65 dollar per square foot allowance, where buildout comes in under budget.
Item | Amount |
Allowance per RSF | 65.00 |
Rentable square feet | 15,000 |
Total allowance | 975,000 |
Actual buildout cost | 900,000 |
Unused amount | 75,000 |
Treatment (per lease) | Applied as rent credit |
Here the tenant built out for 900,000 and had 75,000 left. Because this lease applies unused allowance as a rent credit, the tenant preserves that 75,000 against future rent. Under a forfeiture clause, the same tenant would simply lose it. The dollar amount is identical; the lease language decides whether the tenant keeps it.
Frequently Asked Questions
Is a tenant improvement allowance the same as free rent? No. Both are concessions, but an improvement allowance funds physical buildout costs while free rent abates rent payments for a period. A lease can include both, and each reduces the landlord's net effective rent in a different way.
What happens if buildout costs exceed the allowance? Under a standard allowance structure, the tenant pays the overage out of pocket. Some tenants negotiate amortized additional TI, where the landlord funds the excess and recovers it through added rent over the term, usually with interest.
Do I keep unused tenant improvement allowance? It depends on the lease. Unused allowance may be forfeited, applied as a rent credit, or usable for soft costs and furniture. Many leases allow forfeiture, so a tenant that spends less than the allowance can lose the balance unless the lease says otherwise.
How is the allowance paid to the tenant? The allowance is usually a reimbursement, funded either in draws during construction or as a single payment at completion, in both cases conditioned on invoices, lien waivers, and proof of payment. It is rarely paid as a lump sum at lease signing.
Conclusion
A tenant improvement allowance is landlord capital contributed toward building out a space, quoted per rentable square foot and recovered through rent. The headline number is only the start. How the buildout is funded, whether costs are turnkey or amortized, what counts as eligible, how the money is disbursed, and what happens to any unused balance all determine the true value to the tenant. Abstracting those fields precisely, and valuing the allowance as a concession against effective rent, is what turns a per-foot figure into usable deal intelligence.