How do I structure a redevelopment deal where the tenant pays for the building skin

The Lease Vehicle: Triple-Net vs. Build-to-Suit

Your choice of lease structure determines who pays for the building skin and how that cost flows through the deal. The two primary vehicles are:

• Triple-Net (NNN) Lease: The tenant pays all operating expenses — taxes, insurance, and maintenance — including exterior envelope repairs and capital replacements like roof or facade. In a standard NNN, the tenant covers skin maintenance but not initial construction. To make the tenant pay for a *new* skin, you add a rider that treats the new facade as a capital improvement amortized over the lease term. The tenant funds the upfront cost, and the landlord credits them via reduced base rent or a separate amortization payment at an agreed interest rate. This works best for credit tenants (investment-grade or high-net-worth) who can absorb the upfront hit.
• Build-to-Suit Lease: The tenant contracts directly with the general contractor to build the entire building, including the skin, and the landlord owns the land. The tenant's skin cost is embedded in the total project cost, and the landlord sets the base rent as a percentage of that cost. The tenant gets a long-term lease with fixed rent escalations and often a purchase option at the end. The skin is fully paid by the tenant but becomes landlord property at lease expiration unless a buyback clause is negotiated.

The critical distinction: in a NNN, the tenant pays for skin as an operating expense; in a build-to-suit, the tenant pays as capital. The latter gives the tenant more control over design and materials, but the former keeps the landlord's balance sheet cleaner for financing.

The Skin Cost Recovery Rider: How It Works

The skin cost recovery rider is the legal mechanism that converts a tenant's upfront payment for the building envelope into a rent credit or amortized repayment. Here's the step-by-step structure:

• Step 1: Define the scope. The rider must itemize exactly what "building skin" includes — curtain wall system, glazing, insulation, vapor barrier, exterior cladding (metal panels, brick, stone, EIFS), roof membrane, flashing, gutters, and structural supports (mullions, sub-girts). Exclude interior finishes, MEP systems, and tenant improvements to avoid overlap.
• Step 2: Set the budget. The tenant provides a cost estimate from a licensed contractor. The landlord approves it or caps it at a maximum skin cost. Any overage is the tenant's risk unless approved in writing.
• Step 3: Choose the recovery method. Two standard options:
• Rent credit: The tenant pays the skin cost upfront, and the landlord reduces base rent by an agreed amount each month until the cost is fully recovered. This is simple but reduces the landlord's immediate cash flow.
• Amortization payment: The landlord pays the skin contractor directly, then charges the tenant a monthly amortization fee added to rent. The fee equals the skin cost divided by the lease term, plus interest. This keeps the landlord's rent base higher for financing purposes.
• Step 4: Ownership and depreciation. The rider must state that the skin becomes landlord property upon installation (for tax depreciation purposes) but that the tenant holds a security interest until fully paid. At lease end, the tenant has no claim to the skin unless a salvage value clause is included (rare, but possible for high-value materials like copper or stone).

This rider is commonly used for large retail, industrial, and office tenants who want custom facades. Without it, the tenant's payment is a gift to the landlord.

Ownership and Depreciation: Who Gets the Tax Benefits?

The tax treatment of the building skin is a major leverage point in structuring the deal. The IRS classifies building skin as structural components depreciated over a standard recovery period for commercial property. Here's how ownership affects both parties:

• If the landlord owns the skin: The landlord claims depreciation deductions annually, reducing taxable income. The tenant's payment for the skin is treated as additional rent — fully deductible by the tenant as a business expense in the year paid (if structured as a rent credit) or amortized over the lease term (if structured as a capital contribution). This is the most tax-efficient for the landlord because they get the depreciation benefit without spending capital.
• If the tenant owns the skin: This is rare and risky. The tenant would need to hold title to the skin as personal property (e.g., a removable curtain wall system) and depreciate it over a shorter life. But if the skin is permanently affixed, the IRS may reclassify it as real property, forcing a longer depreciation schedule. Most landlords refuse tenant ownership because it complicates financing — lenders want a single owner for the entire building.
• The hybrid approach: The tenant pays for the skin, but the landlord retains legal title and depreciation rights. In exchange, the tenant gets a lower base rent that reflects the landlord's tax savings. This is documented via a cost segregation study that allocates the skin cost to the landlord's depreciation schedule, and the tenant's payment is structured as additional rent under the lease.

Key tax trap: If the tenant pays for the skin and the landlord doesn't adjust rent, the IRS may treat the payment as a capital contribution to the landlord — non-deductible for the tenant and taxable income to the landlord. Always have a CPA review the lease language to ensure the payment qualifies as rent under IRS Section 467.

Negotiating the Rent Credit: How Much Is the Skin Worth?

The rent credit for tenant-paid skin is a negotiation between two numbers: the landlord's cost of capital and the tenant's opportunity cost. Here's how to calculate and argue it:

• Landlord's perspective: The landlord would typically finance the skin through a construction loan, then pass that cost through base rent. If the tenant pays upfront, the landlord saves that interest cost. So the rent credit should equal the present value of the avoided interest over the lease term.
• Tenant's perspective: The tenant could invest that capital in their core business at a higher return. By paying for skin, they forgo that return. So they want a rent credit that matches or exceeds their hurdle rate.
• The compromise: Most deals land at a blended rate amortized over the lease term. This is added to the lease as a separate line item and adjusted annually for inflation (often tied to CPI).
• Escalation impact: The credit is typically fixed for the first few years, then escalates to match rent bumps. This protects the landlord from inflation eroding the credit's value.

Pro tip: Never agree to a credit that exceeds the market rent for comparable spaces — otherwise the landlord will struggle to refinance or sell the building. The credit should bring the net effective rent to market levels, not below.

Default and Early Termination: Who Loses the Skin Investment?

The biggest risk in a tenant-paid skin deal is the tenant defaulting or terminating early — the landlord keeps the skin but loses the rent stream that justified the credit. Structure these protections:

• Unamortized balance clause: If the tenant defaults or terminates before the lease end, they owe the unamortized balance of the skin cost — the original cost minus the credits already applied. This is treated as liquidated damages and added to any other termination penalties.
• Security deposit or letter of credit: Require the tenant to post a security deposit equal to a portion of the skin amortization payment, or a standby letter of credit from a bank. This covers the landlord if the tenant defaults early and the skin isn't fully paid.
• Sublease restrictions: If the tenant subleases the space, the subtenant must assume the skin payment obligation. The lease should require landlord approval of any subtenant and a guaranty from the subtenant for the remaining skin balance.
• Purchase option at termination: If the tenant terminates early, they may negotiate a buyout where the landlord pays them a salvage value for the skin — reflecting the skin's remaining useful life. This is rare but used in high-end retail where the tenant's custom facade has value to the next tenant.

Key clause to include: "Upon any default or early termination, Tenant shall pay Landlord the unamortized Skin Cost, calculated using the straight-line method over the Lease Term, plus interest at the Default Rate." This ensures the landlord isn't left holding the bag.

The Mermaid Flowchart: Tenant-Paid Skin Deal Structure

The Mermaid Flowchart: Default and Termination Scenarios

FAQ

What exactly counts as "building skin" in a lease? Building skin includes the exterior curtain wall, windows, doors, cladding, insulation, vapor barrier, roof membrane, flashing, gutters, and structural supports like mullions and sub-girts. It excludes interior finishes, MEP systems, flooring, and tenant improvements.

Can the tenant claim depreciation on the skin if they pay for it? Only if the skin is classified as tangible personal property (e.g., a removable curtain wall system) and the tenant holds legal title. Most landlords retain title, making the skin real property depreciated over a standard recovery period by the landlord. Always consult a CPA to avoid IRS reclassification.

What happens to the skin if the tenant goes bankrupt? The landlord has a secured claim for the unamortized skin balance if the lease includes a security interest clause. Without it, the tenant's bankruptcy trustee may treat the skin as unsecured debt, and the landlord could lose the remaining balance. Require a letter of credit to mitigate this risk.

Is a tenant-paid skin deal common in commercial real estate? Yes, especially for credit tenants (national retailers, banks, medical groups) who want custom facades for branding. It's less common for small tenants or speculative office space. Many build-to-suit leases involve some tenant contribution to the skin.

How do I value the skin for the rent credit calculation? Use the contractor's cost estimate as the base, then apply an amortization rate over the lease term. The credit should equal the present value of the avoided interest cost to the landlord, adjusted for inflation via CPI escalation.

Can the landlord sell the building with a tenant-paid skin lease in place? Yes, but the skin cost recovery rider must be recorded with the lease to bind future owners. The buyer assumes the landlord's obligation to continue the rent credit, and the tenant's unamortized balance becomes a liability on the buyer's books. This can complicate financing if the credit is too generous.

Sources

• International Association of Attorneys and Executives in Corporate Real Estate (CoreNet Global)
• Building Owners and Managers Association International (BOMA)
• American Institute of Architects (AIA) Contract Documents
• National Association of Realtors (NAR) Commercial Real Estate Division
• IRS Publication 946 (How to Depreciate Property)
• Real Estate Investment Trusts (REIT) Industry Guidelines
• Urban Land Institute (ULI) Development Handbook

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