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Net Asset Value (NAV) Explained
Net Asset Value estimates what a REIT's real estate is worth today using cap rates, and how that differs from GAAP book value
What NAV Is Trying to Measure
Net Asset Value, or NAV, is an estimate of what a REIT's real estate portfolio and other assets would be worth if sold piece by piece in the private market today, minus all liabilities, expressed on a per-share basis. It's an attempt to answer a simple question: what is this company's real estate actually worth, independent of whatever price the stock happens to be trading at? That's a different question from book value (the depreciated accounting cost on the balance sheet - see reading a REIT balance sheet) and different again from the stock's market price, which reflects everything investors think about the company, not just its property values.
How a NAV Estimate Is Built
Analysts building a NAV estimate generally follow a few steps:
- Estimate the portfolio's forward net operating income (NOI), sector by sector or property by property
- Apply an appropriate cap rate to each piece of NOI to back into an estimated private-market property value
- Add other assets, such as cash, land held for development, or minority stakes in joint ventures
- Subtract total liabilities, including debt, preferred stock, and other obligations
- Divide the result by shares (and OP units) outstanding
Illustration: a REIT's portfolio generates $100 million of annual NOI. Applying an estimated 5% cap rate values the real estate at $100M / 5% = $2 billion. Add $50 million of cash and subtract $800 million of debt, and the estimated net asset value is $2.0B + $0.05B - $0.8B = $1.25 billion. Divide by 50 million shares outstanding, and estimated NAV per share is $25. See the glossary for quick definitions of NOI and related terms.
NAV vs. Book Value
NAV and GAAP book value can diverge substantially, mainly because accounting depreciation reduces a property's book value every year regardless of what's actually happening to its market value. A property purchased a decade ago for $50 million might carry a GAAP book value of $30 million after accumulated depreciation, while still being worth $70 million or more in today's market. NAV tries to reflect the second number; the balance sheet reports the first.
Why NAV Is an Estimate, Not a Reported Figure
For a publicly traded REIT, no financial statement contains a line labeled "NAV." It's an analyst-built estimate, and reasonable analysts can land on meaningfully different numbers depending on the cap rates and NOI growth assumptions they use for each property type. That subjectivity is exactly why NAV estimates are usually presented as a range, or with the underlying assumptions disclosed, rather than as a single precise figure. See traded, non-traded and private REITs for how non-traded REITs handle this differently - many of them publish their own periodic NAV per share as the basis for their share price, rather than leaving it to outside analysts.
What NAV Is Used For
The main use of a NAV estimate is as a yardstick for the stock price, comparing where a REIT trades to what its underlying real estate is estimated to be worth produces the REIT sector's own valuation signal, covered in premium and discount to NAV. It's a complement to, not a replacement for, Price-to-FFO: FFO-based multiples value a REIT like an operating business, while NAV values it like a real estate portfolio.
A Data Note
Because consensus NAV estimates are proprietary analyst work product rather than a company-reported or freely published figure, there is no reliable free public data feed for it. This site does not publish a NAV or premium/discount-to-NAV number for that reason - see each REIT's profile page for the reported figures (FFO, AFFO, leverage) that are available from public filings, and consult analyst research if you're looking for a specific consensus NAV estimate.
Sum-of-the-Parts and Why Analysts Still Use NAV
In practice, analysts rarely apply a single cap rate to an entire portfolio. A diversified REIT with apartments, retail, and industrial properties might warrant a different cap rate assumption for each property type, and sometimes different assumptions by market or asset quality within a single property type, since a well-located, newer property typically commands a lower cap rate (and a higher implied value per dollar of NOI) than an older asset in a secondary market. This property-by-property or segment-by-segment approach is often called a "sum-of-the-parts" valuation.
Given how much subjectivity goes into the cap rate assumptions, it's fair to ask why NAV is used at all. The answer is that, imperfect as it is, NAV grounds a REIT's valuation in the same private real estate market where its actual properties would be bought and sold, rather than relying solely on stock market sentiment. It's a useful cross-check: if a REIT's implied value in the public market (see implied cap rate) drifts far from where similar assets are actually changing hands privately, that gap itself becomes informative, whichever direction it points.
The book-value gap can run in either direction. A property acquired near the top of a strong market, or one facing genuine obsolescence, such as an aging enclosed mall with declining foot traffic, can have a NAV estimate below its GAAP book value, particularly before an impairment charge has caught the accounting up to reality. NAV is meant to reflect current conditions either way, not just the upside case.
- NAV estimates what a REIT's real estate and other assets would be worth sold piece by piece today, minus liabilities, per share
- It's typically built by applying cap rates to portfolio NOI, then adjusting for other assets and total debt
- NAV differs from GAAP book value because accounting depreciation reduces book value regardless of actual market value
- For traded REITs, NAV is an analyst estimate rather than a reported figure, and estimates can vary by analyst
- Non-traded REITs are a partial exception, many publish their own periodic NAV per share as the basis for their share price
See it in the data: See a REIT's reported figures → Browse the REIT directory →
Research and education only — nothing here is investment advice. Figures such as the 90% distribution rule are general and can change; always confirm against a company's filings.