Valuation disagreements in REIT transactions are common enough to be expected, but that does not make them any less disruptive. Buyers and sellers regularly arrive at materially different numbers for the same portfolio, not because one side is acting in bad faith, but because REIT value is genuinely difficult to pin down.
Cap rates, NOI, growth assumptions, and debt treatment are all subject to methodological judgment calls that trained analysts regularly resolve differently. The gap that results is not noise. It reflects the structural complexity of a framework where small differences in assumptions compound into large differences in price.
This post examines the main valuation methods used in REIT transactions, the most common sources of buyer-seller disagreement, and the role independent appraisals play in producing a defensible number that both sides can work from.
How REIT Value Is Determined: A Brief Overview
The core challenge in REIT valuation is that standard GAAP earnings are a poor proxy for economic performance. Depreciation charges on real estate assets are substantial and non-cash, which means reported net income systematically understates the cash a REIT actually generates. According to Wall Street Prep, practitioners account for this by relying on four primary approaches: net asset value (NAV), funds from operations (FFO), adjusted FFO (AFFO), and discounted cash flow (DCF).
In an M&A context, NAV is the most consequential of the four. The logic is straightforward: take the REIT’s net operating income, divide by a market-derived capitalization rate, and the result is the implied market value of the underlying real estate. Subtract liabilities and you have equity value. In practice, the simplicity ends there. The cap rate used to convert NOI into asset value is a judgment call, and it is the single input most capable of moving the final number.
FFO multiples and transaction comparables serve as a secondary cross-check, but they reflect market sentiment and deal timing as much as underlying asset value, and may not correspond to the intrinsic value of the portfolio being appraised.
The Public-Private Valuation Gap
Layered beneath these methodological variables is a structural problem that predates any individual transaction. Public market valuations and private appraisal values for the same real estate assets do not consistently agree. According to Nareit, the spread between REIT implied cap rates and private appraisal cap rates peaked at 243 basis points in Q3 2022 and remained at 120 basis points as of Q4 2024. A buyer pricing from private-market comparables and a seller anchoring to public-market multiples are operating from different frameworks entirely, and that disconnect is present before the first term sheet is drafted.
Why Buyers and Sellers Land on Different Numbers
When two sophisticated parties analyze the same REIT and reach materially different conclusions, the divergence is almost always traceable to a discrete set of variables.
According to Green Street Advisors, NAV estimates for the same REIT commonly span a range, with some as much as 30% higher than others. That spread does not reflect careless analysis. It reflects the cumulative effect of judgment calls on cap rates, capex reserves, NOI adjustments, and overhead treatment, where each individual decision is defensible and the divergence only becomes visible in the aggregate.
REITs also have meaningful discretion in how they classify operating costs. The treatment of G&A expenses, capital reserves, and straight-line rent adjustments can each shift the NOI figure that anchors the entire valuation. Buyers and sellers with different views on these items produce different starting points before any cap rate is applied.
Growth and lease assumptions introduce further divergence. Sellers project occupancy and rent growth from the asset’s current trajectory. Buyers discount that trajectory based on lease expiration schedules, market-level supply risk, and their own underwriting standards. Neither approach is wrong in isolation; they reflect different views of the same future. The pricing difference that results can be substantial, particularly for assets with near-term lease expirations.
Premium or discount to NAV is where negotiations most often stall. In REIT acquisitions, buyers typically anchor their offer to private market NAV. Target shareholders expect a premium to the public stock price. Whether that premium is justified by synergies, management quality, or franchise value, and the absence of a shared valuation baseline, is where the gap becomes most costly.
Why the Gap Matters Beyond Pricing
A valuation gap that cannot be resolved either kills the deal or produces a closing that one party later disputes. When it produces the latter, the consequences extend well beyond the negotiating table. The fiduciary dimension is particularly acute for boards. Under Delaware corporate law, directors have a duty of care that requires them to act on an informed basis before approving significant transactions.
Smith v. Van Gorkom (Del. 1985) is the governing precedent: the Delaware Supreme Court found the Trans Union board grossly negligent for approving a merger without adequate financial analysis or an independent fairness opinion. A REIT board that approves a transaction without a rigorous, independent valuation process carries comparable exposure to shareholder litigation.
The conflict-of-interest problem deserves equal attention. Investment banks that advise on M&A transactions have a financial incentive for the deal to close. A fairness opinion issued by the same firm advising on the transaction is not the same thing as an independent appraisal, and courts in post-closing litigation are not required to treat them as equivalent. For boards and legal counsel, that distinction is not academic. It is the difference between a defensible transaction record and a vulnerable one.
How Independent Appraisals Help Both Sides
An independent appraisal does not eliminate the subjective judgment embedded in REIT valuation. What it does is apply that judgment through a documented, unconflicted methodology that neither side has a financial stake in producing. That is what professional valuation services are designed to deliver.
For buyers, that means validation: confidence that the price being paid reflects underlying asset value rather than a premium inflated by deal momentum. For sellers, it means a defensible record. Documented evidence that the board discharged its duty of care and obtained fair value for shareholders is the evidentiary foundation courts and regulators look to when evaluating whether decisions were made on an informed basis.
Independent valuation is most valuable when it enters the process early, before positions harden around competing internal models and the gap becomes the negotiation itself.
What a Disputed Valuation Actually Looks Like
Abstract disagreements over methodology become concrete quickly when applied to a specific portfolio.
A mixed-asset REIT spanning office, industrial, and multifamily properties cannot be accurately valued with a blended cap rate. Each property type trades at a materially different rate in the private market, and applying an averaged figure to the portfolio as a whole introduces compounding error at every segment.
Development pipelines and ground leases raise a different set of problems. Partially completed assets have no stabilized NOI to capitalize. Long-term ground leases introduce contractual complexity that affects both income projections and market value in ways that buyers and sellers routinely assess differently.
Debt mark-to-market is the variable most often overlooked. Most models use book value for liabilities, but as Green Street Advisors has noted, in-place debt can diverge substantially from prevailing market rates. Failing to mark liabilities to market understates or overstates the true equity value of the portfolio and introduces an error that will not surface until the deal is stress-tested.
Finding Common Ground on REIT Value
Buyer-seller disagreements on REIT value are not a sign that something has gone wrong. They are the predictable result of a valuation framework that requires judgment at every step, applied by parties with different incentives and different views of the future.
The most productive response is to establish shared, defensible ground early, before positions harden and the gap becomes the negotiation. Independent appraisal work conducted by a firm with no stake in the outcome is what makes that possible. For boards, legal counsel, and financial advisors, it is also what makes the transaction record defensible if the deal is ever scrutinized.
Parties navigating a REIT transaction can contact Appraisal Economics to discuss what an independent valuation of their portfolio involves.
About Appraisal Economics
Appraisal Economics is an independent, pure-play valuation firm with more than 30 years of experience across thousands of completed engagements. Unlike accounting firms or investment banks that offer valuation as one service among many, Appraisal Economics is entirely dedicated to valuation work. That singular focus spans a broad range of asset types, including business interests, intangible assets, real estate, and complex securities, and extends to REIT portfolios across diverse property types and transaction contexts, including assignments where independence from the deal process is essential.