A build transfer agreement is a contract under which a private developer designs and constructs a facility, then transfers ownership to the buyer, whether a public agency or a private company, as soon as construction is complete. The buyer runs the finished asset from day one; the developer has no operating role. These contracts show up most often in energy, water treatment, and transportation, where the buyer wants specialized construction expertise but has the staff to operate the facility itself. The financial stakes are usually large, and the provisions inside the contract decide who carries which risk at every stage.
How It Differs From BOT, BOOT, and BOO
The infrastructure alphabet blurs quickly, and the differences matter because they decide who controls the asset after construction and who absorbs revenue risk during operations.
In a build transfer agreement, the developer builds and immediately hands the completed facility to the owner. There is no interim operating period.
A Build-Operate-Transfer (BOT) arrangement lets the developer operate the facility for a set period after construction, collecting revenue through tolls, user fees, or power purchase agreements to recoup its investment before eventually transferring the asset. A Build-Own-Operate-Transfer (BOOT) goes further, giving the developer actual ownership during that operating period rather than only operating rights. A Build-Own-Operate (BOO) structure leaves ownership with the developer permanently, with no transfer at all.
The practical upshot: a BTA fits an owner that has the staff and expertise to operate the facility immediately but lacks in-house capacity for a large construction build. BOT and BOOT structures suit owners that either can’t fund construction upfront or want the developer to bear early demand risk. Choosing the wrong model can leave an owner paying for operating services it doesn’t need, or stuck operating a complex facility it isn’t ready to manage.
Core Components of the Contract
The contract labels the developer as the Transferor and the buyer as the Transferee, and sets who decides what at each phase. Site control is usually secured early through ground leases or easements so the developer can access the property for construction. Decision-making authority needs to be spelled out precisely; ambiguity here generates disputes throughout the project.
Project scope lives in detailed exhibits covering every component, from structural foundations to electrical and mechanical systems. Those specifications set the legal baseline for whether the finished product matches what was promised. Performance standards usually reference national building codes along with discipline-specific benchmarks, such as American Society of Civil Engineers guidelines for subsurface utility work or structural design, so both sides have an objective measuring stick.
Permitting obligations almost always fall on the developer. Depending on the site, required approvals can include Clean Water Act Section 404 permits for any work involving discharge of dredged or fill material into waterways or wetlands, state environmental permits, and local building permits.1U.S. Environmental Protection Agency. Permit Program Under CWA Section 404 The contract should clearly allocate the cost and timeline risk of permitting delays, because a permit that takes six months longer than expected can blow up the entire schedule.
Insurance
During construction, the developer typically carries builder’s risk insurance covering damage to the structure itself from fire, storms, or theft, along with commercial general liability insurance and professional liability coverage for design errors. The agreement should specify minimum coverage amounts and require the owner to be named as an additional insured on the developer’s policies.
At the moment of transfer, the risk of loss shifts to the owner, so the contract needs to pinpoint exactly when the owner’s own property and casualty coverage must be in place. A gap of even a single day can leave an expensive facility uninsured.
Indemnification and State Anti-Indemnity Limits
Indemnification clauses require the developer to compensate the owner for third-party claims arising from construction defects or jobsite injuries. Roughly 45 states have enacted anti-indemnity statutes that void contract language requiring one party to cover losses caused entirely by the other party’s own negligence. In those states, a clause forcing the developer to indemnify the owner for the owner’s sole fault is unenforceable as a matter of public policy. The safer approach is to limit indemnification to claims arising from the developer’s own acts or from shared-fault situations, and to say so explicitly.
Payment Structure
Most build transfer agreements use one of two pricing models. A fixed-price structure sets the total cost upfront and shields the owner from overruns; the developer absorbs any cost increases not caused by owner-directed changes. A cost-plus structure reimburses the developer for actual expenses plus a negotiated fee, which makes more sense when project variables are genuinely uncertain at the time of contracting. The tradeoff is transparency versus predictability, and the choice ripples through every other financial provision.
Payments are released at defined milestones rather than on a calendar. An initial mobilization payment covers site preparation and equipment transport. After that, progress payments are tied to specific construction percentages, typically verified by an independent inspector rather than the developer’s own project manager. That structure keeps the developer funded while giving the owner checkpoints to confirm work is actually progressing.
Retainage
Retainage is the practice of withholding a percentage of each progress payment until the project is finished. In construction contracts, this holdback commonly falls between 5 and 10 percent. On federal construction contracts, the withheld amount cannot exceed 10 percent and must be paid promptly upon completion of all contract requirements.2Federal Acquisition Regulation. 32.103 Progress Payments Under Construction Contracts Many state laws impose their own caps.
Retainage gives the owner leverage to ensure punch-list items get finished, but it also means the developer is carrying the financing cost of that withheld money for the entire project. Contracts sometimes reduce the retainage percentage as construction nears completion to ease that burden.
Performance Bonds and Escrow
Performance bonds guarantee that if the developer defaults, a surety company will step in to finish the work or compensate the owner. These bonds are typically set at 100 percent of the contract price for large infrastructure projects. Letters of credit serve a similar purpose, giving the owner a draw-down right if the developer fails to perform. The final purchase price is often held in escrow, released only after the transfer is complete and all liens against the property are cleared. Without these protections, an owner that has already made progress payments has limited recourse if the developer walks away mid-project.
Audit Rights Under Cost-Plus
When a BTA uses cost-plus pricing, the owner should insist on open-book accounting and the right to audit the developer’s records. The developer maintains detailed records of all expenditures, subcontractor invoices, and equipment costs, and the owner or its independent auditors can inspect those records during the project and for a defined period after completion. Without audit rights, an owner paying cost-plus is trusting the developer’s self-reported numbers. Audit clauses should specify the retention period for records, reasonable notice requirements for inspections, and the scope of what can be examined.
Change Orders
No large construction project finishes with the exact scope it started with. Change orders are the mechanism for modifying the work, adjusting the price, or extending the schedule, and a well-drafted BTA establishes the process before the first shovel hits dirt.
Pricing for change orders typically follows an order: first, unit prices already established in the contract; second, a mutually agreed lump sum; and third, time-and-materials pricing if the parties can’t agree on a fixed amount. Markup percentages for labor, materials, and equipment on time-and-materials work should be spelled out in the contract, not negotiated under pressure mid-project. Common markups run around 15 percent on labor and materials.
Owner-directed changes are straightforward: the owner wants something different and agrees to pay for it. The trickier situation is a unilateral change order, where the owner directs the developer to proceed with modified work before the two sides agree on cost and schedule impact. The contract should address whether the developer can refuse a unilateral change, how disputes over pricing are resolved, and what happens to the completion deadline. Developers should also face a deadline for flagging change-order claims, typically 14 days from the triggering event, to keep stale claims from piling up at the end of the project.
Federal Filings That Can Block a Transfer
Large BTAs can trigger federal filing obligations that delay or even block a transfer if the parties don’t plan for them. Three regimes come up most often.
FERC Approval for Energy Assets
When the facility is a power plant or other energy asset within Federal Energy Regulatory Commission jurisdiction, Section 203 of the Federal Power Act requires prior FERC approval before a public utility can sell or dispose of jurisdictional facilities valued above $10 million.3Federal Energy Regulatory Commission. Mergers and Sections 201 and 203 Transactions FERC will approve the transaction only if it finds the transfer is consistent with the public interest and won’t result in improper cross-subsidization. The review generally takes 90 to 120 days from filing.4Federal Energy Regulatory Commission. Types of License Transfers For transactions involving facilities valued between $1 million and $10 million, the parties must notify FERC within 30 days after closing, even though prior approval isn’t required.5GovInfo. Amending Section 203 of the Federal Power Act
CFIUS Review for Foreign-Linked Deals
When a foreign developer or foreign-controlled entity is involved in a BTA for critical U.S. infrastructure, the Committee on Foreign Investment in the United States may review the transaction. CFIUS jurisdiction covers both covered control transactions, where a foreign person gains control of a U.S. business, and investments in critical infrastructure businesses where the foreign investor gains access to nonpublic technical information, board representation, or decision-making authority over the infrastructure. The definition of control is broad and doesn’t require a majority ownership stake. Filing is mandatory for certain transactions involving specific types of critical infrastructure identified in CFIUS regulations.
Hart-Scott-Rodino Antitrust Filing
The Hart-Scott-Rodino Act requires premerger notification to the Federal Trade Commission and Department of Justice for asset acquisitions above certain thresholds. As of February 17, 2026, no filing is required if the transaction value falls below $133.9 million. For transactions between $133.9 million and $535.5 million, a filing is required only if one party has annual sales or assets of at least $267.8 million and the other has at least $26.8 million. Transactions valued above $535.5 million require a filing regardless of the parties’ sizes.6Federal Trade Commission. Current Thresholds The parties cannot close the transfer until the HSR waiting period expires or the agencies grant early termination.
Tax Exposure for the Developer
The developer’s tax reporting on a BTA is governed primarily by IRC Section 460, which requires the percentage-of-completion method for long-term contracts. Under that method, the developer recognizes revenue each year based on the ratio of costs incurred to total estimated costs, rather than waiting until the project is finished.7Office of the Law Revision Counsel. 26 U.S. Code 460 – Special Rules for Long-Term Contracts
When the contract is complete, the IRS requires a look-back calculation. The developer compares the actual contract price and costs against the estimates used during the build. If those estimates caused an underpayment of tax in earlier years, the developer owes interest on the shortfall. If they caused overpayment, the developer receives interest back. The look-back doesn’t apply to smaller contracts where the gross price is $1 million or less (or 1 percent of the developer’s average annual gross receipts for the prior three years, if lower) and the contract was completed within two years.7Office of the Law Revision Counsel. 26 U.S. Code 460 – Special Rules for Long-Term Contracts
Depreciation Recapture on Transfer
If the developer holds the asset on its books during construction and claims depreciation deductions, the transfer can trigger depreciation recapture under IRC Section 1250. For real property where straight-line depreciation was used, the recaptured gain is taxed at a maximum rate of 25 percent rather than ordinary income rates.8Office of the Law Revision Counsel. 26 USC 1250 – Gain From Dispositions of Certain Depreciable Realty The tax applies based on the depreciation the developer was allowed or allowable to claim, meaning even unclaimed deductions can generate a tax bill on transfer. If a cost segregation study reclassified building components into shorter depreciation schedules, those components may trigger recapture at ordinary income rates up to 37 percent. High-income developers may also owe the 3.8 percent net investment income tax on top.
The Transfer Itself
Two milestones often get conflated: substantial completion and final completion. Substantial completion occurs when the facility is finished enough for the owner to put it to its intended use, even with minor items outstanding. Final completion means every last punch-list item is resolved and all contract requirements are satisfied. The distinction matters because substantial completion typically triggers several contractual events at once: the start of warranty periods, the release of retainage, and the shift of insurance risk to the owner.
Documentation Package
Before the transfer, the developer compiles a permanent record of the asset. This includes as-built drawings showing the facility as actually constructed (which always differs from the original design plans), equipment warranties, operation and maintenance manuals from every subcontractor and manufacturer, and environmental clearances. For projects on contaminated or previously developed sites, the developer may need to deliver a Phase I Environmental Site Assessment examining current and historical site uses to identify potential environmental liabilities.9ASTM International. ASTM E1527-21 – Standard Practice for Environmental Site Assessments Phase I Environmental Site Assessment Process Final occupancy permits from the local building department round out the package. Asset identification numbers, warranty expiration dates, and maintenance schedules all need to be in formats the owner can actually use from day one.
Certificate of Completion and Deed
The Certificate of Completion confirms that all technical specifications have been met and all punch-list items are resolved. Both parties typically sign, formally acknowledging that the facility has reached the contractual standard. That certificate is the legal trigger for final payment and the starting gun for warranty periods.
Legal title transfers through execution and recording of a deed, commonly a special warranty deed, at the county recorder’s office where the facility sits. A special warranty deed guarantees that the developer hasn’t encumbered the property during its period of ownership, but it doesn’t warrant against title defects from prior owners. The recording creates a public record of the ownership change and legally shifts the risk of loss and insurance responsibility to the new owner.
The owner typically has a contractual window, often 15 to 30 days, to formally accept the facility or document remaining deficiencies. During that acceptance period, the developer stays responsible for correcting defects identified during the final walkthrough. Once the owner signs off, the final payment is released from escrow, the developer vacates the site, and the owner’s operational control begins.
What Survives the Transfer
The developer’s obligations don’t end at handover. Most BTAs include a warranty period, typically one to two years, during which the developer must repair defects in workmanship or materials at its own expense. This callback warranty covers problems that surface during normal operations. Equipment manufacturers often provide separate warranties that run longer, and the contract should require the developer to assign those manufacturer warranties to the owner at transfer.
Latent defects are harder. These are construction flaws hidden from view, such as improperly compacted soil beneath a foundation or incorrectly installed waterproofing behind a finished wall, that may not surface for years. Whether the developer remains liable for latent defects after the warranty period expires depends on the contract language, the applicable statute of limitations, and the statute of repose in the relevant jurisdiction. Some BTAs include an extended latent-defect warranty running five to ten years for structural and envelope components. Without that language, the owner’s only recourse may be a negligence claim, subject to whatever time limits the state imposes.
Termination, Force Majeure, and Disputes
Every BTA should address two termination scenarios. Termination for cause applies when one party materially breaches, such as the developer falling hopelessly behind schedule, producing defective work, or becoming insolvent. The non-breaching party typically must provide written notice and a cure period before terminating. If the developer is terminated for cause, the owner can call on the performance bond to hire a replacement, and the developer forfeits any claim to profit on uncompleted work.
Termination for convenience lets the owner end the contract for any reason, even without the developer’s fault. It’s standard in government contracts and increasingly common in private deals. When an owner terminates for convenience, the developer is entitled to payment for work completed, the cost of settling subcontracts, and a reasonable profit on work already performed. On federal contracts, the developer can also recover wind-down costs, including storage, transportation, and administrative expenses.10Federal Acquisition Regulation. 52.249-2 Termination for Convenience of the Government (Fixed-Price) The key distinction: a for-cause termination wipes out the developer’s profit; a for-convenience termination preserves it.
Force majeure clauses excuse performance when events beyond either party’s control prevent work from continuing. The classic examples are natural disasters, wars, and government actions, but the specific list matters because courts interpret these clauses narrowly. If an event isn’t named in the clause, or doesn’t clearly fall within its general language, the affected party gets no relief. Relief usually takes the form of a time extension equal to the delay; some contracts also let the developer recover added costs without a profit markup. If the event drags on beyond a threshold period, often 180 days, either party may have the right to terminate. The affected party has a duty to mitigate.
Construction disputes are expensive and slow in court, so most BTAs use a tiered clause that escalates through progressively formal steps: direct negotiation between senior project executives, then mediation, then binding arbitration. Some contracts add a dispute review board, a standing panel of independent experts that issues advisory or binding decisions on technical disagreements during construction. Arbitration is the dominant final step in the construction industry because it’s faster than litigation, parties can select arbitrators with relevant technical experience, and proceedings are confidential. Under the default American rule, each side pays its own attorneys’ fees regardless of outcome, though the contract can change that. The BTA should specify where the arbitration will take place, the number of arbitrators, and whether the decision can be appealed, because leaving those details to be argued about later defeats the purpose of having the clause.