What Is a Build-to-Suit Lease?
A build-to-suit (BTS) lease is a commercial real estate transaction where a developer or landlord constructs a new building — or substantially renovates an existing one — specifically designed and configured to meet the requirements of a single tenant. Upon construction completion, the tenant occupies the facility under a long-term lease, with rent structured to recover the developer's total investment over the lease term.
BTS deals are the dominant transaction structure for several commercial real estate categories:
- Industrial and distribution: Amazon fulfillment centers, regional distribution hubs, cold storage facilities
- Corporate headquarters: Office campuses for large employers requiring specific configuration
- Healthcare: Hospital outpatient facilities, ambulatory surgery centers, specialty clinics
- Manufacturing: Specialized production facilities, clean rooms, R&D labs
- Retail: Standalone big-box stores, drive-through QSR facilities, auto dealerships
- Government: Federal, state, and local government facilities under long-term lease
The fundamental economics are straightforward: the developer finances construction, and the tenant's long-term lease payments amortize the development cost plus a return. Longer terms, higher credit quality tenants, and essential-use facilities command lower return-on-cost requirements and therefore lower rents.
Key Difference from Standard Leases: In a standard lease, you're choosing from existing space. In a BTS lease, you're commissioning a custom facility. This creates negotiating leverage during design but also binds you to decisions made before construction begins.
BTS Lease Structures: The Four Core Models
Model 1: Turnkey BTS (Developer Risk)
The landlord/developer contracts to deliver a completed facility meeting agreed specifications at a fixed price. The developer absorbs all cost overruns, construction delays within landlord's control, and specification deficiencies. Rent is fixed in the lease and does not increase with actual construction costs.
This is the most tenant-favorable structure. The tenant gets exactly what was specified; overruns become the developer's problem. The tradeoff: the developer prices a contingency into the development budget, typically 5–10% of hard costs, and the tenant pays for this cushion through slightly higher rent.
Turnkey BTS works best when specifications are fixed and detailed before lease execution. Highly specialized tenants (data centers, laboratories, food manufacturing) should insist on turnkey structures because their specific requirements create outsized cost risk.
Model 2: Tenant Improvement Allowance BTS
The landlord delivers a base building — shell structure, mechanical systems, common areas — and provides a specified TI allowance for the tenant to build out their specific improvements. If actual build-out costs exceed the TI allowance, the tenant pays the overage.
This structure is common in office BTS projects where the tenant wants control over interior finishes. It shifts cost overrun risk to the tenant but gives them more flexibility during construction. The key negotiating points: the TI allowance level (negotiate as high as possible), the definition of what's included in the landlord's base building delivery, and tenant's right to select contractors and oversee construction.
Model 3: Developer-Build with GMP Contract
A hybrid: the developer builds the facility but uses a Guaranteed Maximum Price (GMP) construction contract. The GMP caps the tenant's exposure at a defined cost ceiling while allowing the developer to return savings to the tenant if actual costs come in below GMP. This aligns incentives while limiting downside.
Under a GMP structure, the lease typically specifies that rent is calculated on actual construction costs up to the GMP, with any costs above GMP absorbed by the developer, and any savings below GMP shared 50/50 or returned entirely to the tenant (depending on negotiation).
Model 4: Ground Lease BTS (Tenant-Owned Improvements)
The tenant ground-leases the land from the landowner and constructs improvements themselves (or through their own developer). The tenant owns the building during the lease term but the land reverts to the landowner at expiration. This structure is common for large users who want economic control of the facility and may capture the building's residual value through purchase options.
Ground lease BTS structures are significantly more complex and require specialized legal counsel, but they offer the greatest tenant control and can produce lower effective cost of occupancy for financially strong tenants.
| BTS Structure | Cost Risk | Tenant Control | Rent Calculation | Best For |
|---|---|---|---|---|
| Turnkey | Landlord bears overruns | Low (specs fixed) | Fixed rate on development budget | Specialized/complex specs |
| TI Allowance | Tenant bears overruns above TI cap | High (tenant controls build-out) | Base rent + amortization of TI overage | Office, retail interiors |
| GMP Contract | Capped — landlord bears above GMP | Medium | Actual costs up to GMP | Balanced risk-sharing |
| Ground Lease | Tenant owns improvements | Maximum | Ground rent only | Large users, credit tenants |
BTS Rent Calculation: The Development Cost Model
Unlike standard commercial leases where rent is derived from market comparables, BTS rent is calculated from the developer's actual or budgeted development costs. Understanding this calculation is essential for tenants to negotiate intelligently.
Monthly Rent = Annual Rent ÷ 12
Per-SF Rent = Annual Rent ÷ Rentable Square Footage
Example: 200,000 SF Industrial BTS Distribution Center
Land Cost: $4,000,000
Hard Construction Costs: $14,000,000
Soft Costs (design, permits, fees): $1,500,000
Developer Profit & Overhead: $500,000
Total Development Cost: $20,000,000
Return on Cost Negotiation:
Landlord asks: 8.0% → Annual Rent = $1,600,000 → $8.00/SF
Tenant target: 7.0% → Annual Rent = $1,400,000 → $7.00/SF
Agreed: 7.5% → Annual Rent = $1,500,000 → $7.50/SF
Difference over 15-year term: ($1,600,000 - $1,400,000) × 15 = $3,000,000
Key components tenants should scrutinize in the development budget:
- Land cost: Should reflect actual acquisition cost, not inflated "market value." Request appraisal support.
- Hard costs: Verify against comparable project costs per square foot. In 2026, industrial warehouse construction runs $80–$150/SF in most markets.
- Soft costs: Typically 8–12% of hard costs. Excessive soft cost loading inflates the rent base.
- Developer profit: 5–8% is standard. Higher percentages warrant pushback.
- Financing carry: Interest during construction should reflect actual financing rates, not spread to inflated assumed rates.
Construction Risk Allocation: The Most Negotiated BTS Provisions
1. Construction Schedule and Delivery Date
Every BTS lease must specify a target delivery date (or a formula for calculating it after construction commencement). The delivery schedule should include:
- Anticipated construction commencement date
- Construction completion milestones (foundation, structural, MEP rough-in, enclosure)
- Substantial completion date — when the facility is ready for occupancy
- Punch list completion date — when all outstanding items are resolved
- Final acceptance date — tenant's formal acceptance of the completed facility
2. Delay Protections
Construction delays are common in BTS projects. Without contractual delay protections, a tenant with a delayed delivery has no financial remedy and may face expensive holdover obligations at their existing facility.
Negotiate these delay protections:
- Rent credit: One day of free rent for each day of delay beyond the scheduled delivery date, after an initial grace period of 30–60 days for force majeure events
- Termination right: Right to terminate the lease if delivery is delayed beyond a specified threshold — typically 180 to 365 days
- Holdover cost reimbursement: Landlord reimburses documented holdover premium costs at tenant's existing facility caused by the delay
- Substantial completion definition: Nail down exactly what "substantial completion" means — not just a Certificate of Occupancy, but actual occupancy readiness with all specified systems operational
Existing monthly base rent: $60,000
Holdover monthly rent: $60,000 × 1.5 = $90,000
Monthly holdover premium cost: $30,000
BTS delivery delayed 6 months without delay credit:
Holdover premium: $30,000 × 6 = $180,000
Lost productivity / inefficient temporary operations: estimated $50,000
Moving costs incurred twice: $25,000
Total unprotected delay cost: ~$255,000
3. Change Order Procedures
After lease execution, tenants inevitably want to change something. Change order provisions govern these requests. Well-drafted change order procedures should specify:
- The process for submitting change requests (written, with specifications)
- Landlord's response deadline (typically 10–15 business days)
- How cost increases are calculated and approved
- Schedule impact assessment and mutual agreement before proceeding
- Maximum aggregate change order cost before lease rent adjustment formula kicks in
In turnkey structures, tenant-initiated change orders typically require tenant to pay cost increases above original specifications. This is fair — but the pricing mechanism must be transparent. Insist on open-book pricing with third-party cost verification rights for change orders above a threshold (e.g., $50,000).
4. Specification Standards and Completion Criteria
The most common source of BTS disputes is disagreement about whether the landlord has delivered what was specified. Prevent this with:
- Detailed Exhibit A: Building Specifications (not "Class A industrial" — specify ceiling height, floor loading, dock doors, electrical amperage, sprinkler density, HVAC BTU per zone)
- Approval rights over construction documents (plans and specifications must be approved by tenant before construction begins)
- Regular site inspection rights during construction
- Third-party construction inspector (tenant's representative) with access and report rights
- Specific punch list process — written, with completion deadlines and escrow for incomplete items
BTS Lease Terms: What's Standard, What's Negotiable
Lease Term Length
BTS leases typically run 10–20 years for industrial and 10–15 years for office, driven by the development cost recovery requirement. The minimum term is essentially the amortization period at the agreed return on cost. Tenants should negotiate multiple 5-year renewal options at pre-agreed rents or market rent with a fair market rent determination process.
For smaller BTS deals ($3–8M total development cost), 7–10 year terms are common. For large distribution centers ($30M+), 15–20 year terms are standard.
NNN Structure in BTS Leases
Virtually all BTS leases are triple-net. The landlord delivered a brand-new facility and reasonably expects the tenant to bear all operating costs. CAM, taxes, and insurance are typically the tenant's responsibility from day one, with no base year stop or expense cap that might exist in a standard office lease.
Key negotiation points in BTS NNN structures:
- Capital expense responsibility: who pays for roof replacement, structural repairs, HVAC replacement? Negotiate for landlord responsibility on structural items and items arising from construction defects
- Construction warranty: require a 1-year general warranty and specific warranties for major building systems (roof, HVAC, plumbing) against defects in materials and workmanship
- Tax assessment challenge rights: if property taxes are over-assessed, tenant should have the right to contest (since tenant pays them)
Purchase Options
Many BTS tenants negotiate purchase options — the right to purchase the facility at a specified price or methodology during or at the end of the lease term. Purchase options are particularly common for:
- Manufacturing and distribution users who view the facility as a long-term operational asset
- Healthcare users with specialized facilities difficult to replicate
- Tenants seeking to capture real estate appreciation through business ownership
Purchase option structures include: fixed price (set at lease execution), formula price (development cost plus annual appreciation), or fair market value with an appraisal process. Fixed price options provide maximum clarity but may be below or above market at the option exercise date.
| BTS Provision | Standard Market | What Tenants Should Push For |
|---|---|---|
| Lease Term | 10–20 years (fixed) | Shorter initial term with renewal options at pre-agreed rent |
| Return on Cost | 7.0–9.0% (varies by market/risk) | Negotiate down from initial ask; benchmark to market cap rates |
| Delivery Delay Credit | Often absent in initial draft | 1:1 rent credit per day of delay after 30-day grace period |
| Termination Right for Delay | Often 365 days | 180–270 days maximum |
| Capital Expense Responsibility | Tenant-responsible (full NNN) | Landlord responsible for structural, roof, and warranty-covered items |
| Construction Warranties | Varies — often 1 year general | 1-year general + 5-year roof + 3-year MEP systems |
| Change Order Cost Risk | Tenant pays increases above original spec | Open-book pricing; GMP cap on developer margin |
| Purchase Option | Not always offered | Fixed-price option at development cost + 3% annual appreciation |
Special Situations: Phased BTS and Expansion Options
Phased BTS Development
Large tenants sometimes need BTS facilities delivered in phases — for example, Phase 1 of 200,000 SF now and Phase 2 of an additional 100,000 SF within three years. Phased BTS leases must address:
- Phase 2 trigger conditions (tenant's right to exercise, not obligation)
- Phase 2 construction timeline after exercise
- Phase 2 rent calculation — will it be at the same return on cost, or reset to prevailing market conditions?
- Whether Phase 2 extends the overall lease term and by how much
- Operational disruption during Phase 2 construction adjacent to Phase 1
Expansion Options in BTS Leases
A right of first offer (ROFO) or right of first refusal (ROFR) on adjacent land or future development phases is valuable in BTS leases, particularly for growing industrial users. Unlike standard commercial leases where expansion options are on existing buildings, BTS expansion options may contemplate entirely new development — which requires the same construction risk allocation provisions as the original BTS transaction.
Tax and Accounting Treatment of BTS Leases
BTS leases have important tax and accounting implications that affect transaction structure.
ASC 842 / IFRS 16 Capitalization
Under current lease accounting standards, BTS leases meeting criteria as finance leases (formerly capital leases) are capitalized on the tenant's balance sheet as right-of-use assets with corresponding lease liabilities. A 15-year BTS lease at $1.5M/year creates a present value liability of approximately $15–17M at typical discount rates — a material balance sheet impact for smaller public companies or covenant-constrained borrowers.
Tenants with balance sheet sensitivity should consult their auditors about operating vs. finance lease classification before executing a BTS deal.
Sale-Leaseback BTS Variant
Some BTS transactions are structured as sale-leasebacks: the tenant initially funds or owns the development, then sells it to an investor and leases it back under a long-term NNN lease. This structure allows tenants to monetize the real estate asset while retaining operational control. It's popular for credit tenants (investment-grade retailers, healthcare systems, industrial users) who can sell BTS facilities at capitalization rates that produce attractive proceeds while maintaining occupancy.
Common BTS Lease Mistakes to Avoid
Mistake 1: Incomplete Specifications at Lease Execution
The most expensive BTS mistake: executing a lease with incomplete or vague building specifications, then attempting to refine them during construction through costly change orders. Every specification detail that isn't nailed down before lease execution becomes leverage for the developer to charge change order premiums.
Mistake 2: Accepting "Substantial Completion" as the Delivery Standard
Many BTS leases define delivery as "substantial completion" without specifying what that means. Landlords sometimes issue Certificates of Occupancy with outstanding items that prevent actual operations. Define substantial completion to include: all systems operational per specifications, CO issued, all utility connections made and functioning, and no items preventing normal business operations — even if minor punch list items remain.
Mistake 3: No Independent Construction Review
On a $10M+ BTS project, failing to hire an independent owner's representative or construction manager is a false economy. Independent review costs $100,000–$300,000 but regularly saves multiples of that in quality deficiencies, schedule delays caught early, and change order fraud prevention.
Mistake 4: Ignoring the Anchor Tenant Effect
In industrial parks or mixed-use developments, your BTS facility may be part of a larger development. Ensure your lease addresses: traffic and access rights, shared infrastructure costs, restrictions on future neighboring development that could impact operations, and protections if the overall project isn't completed as planned.
12-Item BTS Lease Checklist
- Confirm BTS structure type (turnkey vs. TI vs. GMP) and negotiate the most favorable allocation of cost overrun risk
- Audit the development budget line-by-line — verify land cost, hard costs per SF vs. market, soft cost percentages, and developer profit margin
- Negotiate the return on cost rate aggressively — every 50 basis points saved on a $20M project saves $100,000/year in rent
- Define "substantial completion" in precise operational terms, not just Certificate of Occupancy issuance
- Negotiate a per-day rent credit for delays beyond a reasonable grace period (30–60 days for force majeure)
- Secure a termination right if delivery is delayed beyond 180–270 days
- Get landlord to reimburse documented holdover premium costs caused by delivery delays
- Establish a detailed punch list process with completion deadlines and holdback/escrow for incomplete items
- Negotiate construction warranties: 1-year general, 5-year roof, 3-year major MEP systems
- Clarify capital expense responsibility — structural items and warranty-covered defects should be landlord's obligation
- Include open-book pricing rights on all change orders above $25,000
- Negotiate purchase option at development cost plus reasonable appreciation formula, or at fair market value with defined appraisal process
Frequently Asked Questions
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