What does dark value mean in commercial real estate?

Dark value is an estimate of what a property is worth if its dominant tenant defaults or leaves and the space has to be re-leased at market terms. It strips out the in-place lease and asks what the real estate supports on its own. Lenders and rating analysts apply it where one tenant carries most of the income, because a loan sized to a lease can exceed what the building is worth without it.

What the dark value test takes out of the property

The test deletes the major tenant’s rent and assumes the space goes vacant. Value is then rebuilt from market rent, a market vacancy allowance and the cost of getting the space leased again. The in-place lease, its credit and its remaining term carry no weight in the answer.

It is a collateral stress and makes no forecast. The test never says the tenant will leave. It measures how much of the occupied value belongs to the lease and how much belongs to the land and the building.

The gap between the two numbers is the real subject. A property with a long lease to a strong tenant can appraise well on an occupied basis and far lower on a dark basis, and the size of that gap is the loan’s exposure to a single credit.

“For loans representing approximately 2% or more of a pool, secured by properties with material single-tenant exposure (an individual tenant represents 75% or more of the space or revenue), investment-grade proceeds may be constrained by a dark value analysis.”

How a securitization screen applies the test to large loans

The trigger is concentration at two levels. The loan has to be about 2% or more of the pool, and one tenant has to occupy 75% or more of the space or revenue. When both hold, the proceeds that can receive investment-grade credit may be constrained by a dark value analysis that assumes the tenant defaults and the space is re-leased at market.

Pool share matters because a large loan moves the whole pool’s loss profile. Tenant share matters because one default removes most of the income at once, with no staggered rollover to soften it.

The same modeling logic shows up in loss severity. Greater single-tenant exposure is associated with higher loss severity, since a default tied to the main tenant can make the loss greater.

Why a single tenant concentrates the loss

When a sole tenant stops paying and the space goes dark, property cash flow and value can fall sharply, and the owner picks up the operating costs of an empty building. Lease default or tenant bankruptcy can also bring legal and other costs that are unlikely to be recouped.

So the dark case carries drags that an occupied underwriting never shows. Rent is lost. Carrying costs run through the vacancy. Re-leasing costs follow before stabilized income returns.

A multi-tenant building spreads those drags over many leases and many dates. A single-tenant building takes them in one block.

Using dark value when a loan is already impaired

The method also appears after a loan has gone bad. When a loan is non-performing, or property cash flow is impaired, not reflective of value or not provided, a value analysis can draw on third-party valuations, servicer workout plans, sales comparables, dark value analyses or other approaches judged most reliable.

Dark value fits when the rent roll no longer tells what the building will earn. Third-party valuations on non-performing loans may carry a 20% haircut, adjusted for collateral conditions, servicer advances, information limits and workout duration.

The haircut and the dark value are separate tools. One discounts an outside opinion of value. The other rebuilds value from a vacancy and re-leasing case.

Worked example: a $12 million loan on a single-tenant building

The following hypothetical, round-number illustration holds the property and the loan constant and changes only the income assumption. A single-tenant building produces $1,200,000 of annual net operating income under its lease. At a 6% capitalization rate, occupied value is $1,200,000 divided by 0.06, which is $20,000,000. A loan of 60% of that value is $20,000,000 multiplied by 0.6, or $12,000,000.

Now the dark case. The tenant leaves and market rent supports $800,000 of net operating income once the space is leased. Assume a buyer prices the re-leased building at an 8% capitalization rate, since the credit tenant is gone. Stabilized value is $800,000 divided by 0.08, or $10,000,000.

Getting there costs money. Assume $400,000 of operating costs and taxes carried during the vacancy and $1,600,000 of commissions and tenant improvements. Total re-leasing cost is $400,000 plus $1,600,000, or $2,000,000. Dark value is $10,000,000 minus $2,000,000, or $8,000,000.

Compare both cases against the same $12,000,000 loan. On the occupied basis the loan is 60% of value. On the dark basis the loan is $12,000,000 divided by $8,000,000, or 1.5 times value, and the loan exceeds dark value by $12,000,000 minus $8,000,000, or $4,000,000. That $4,000,000 is the part of the debt that depends on the lease surviving.

Mistakes that distort a dark value analysis

Capitalizing market rent at the occupied cap rate is a common arithmetic slip. In the example above, $800,000 at 6% gives a value about a third higher than the $10,000,000 that the 8% rate gives. A building without its credit tenant is a different risk, and the rate has to reflect that.

Skipping the cost to get from dark to stabilized overstates value. Carrying costs during the vacancy and the legal and reletting costs are real cash outflows that a stabilized cap-rate value never shows.

Treating dark value as a full appraisal misreads what it is. It is a scenario value built on a default and a re-lease at market, so it sits alongside comparable sales and other valuation approaches and does not replace them.

Confusing the 20% haircut on third-party valuations with a dark value calculation mixes two steps. The haircut adjusts an outside valuation on a non-performing loan, and its size moves with collateral condition, advances, information limits and workout duration. A dark value is built from income and cost inputs.

Applying the screen to the wrong loans is a threshold error. The concentration trigger for large pooled loans needs both the loan share of the pool at about 2% or more and the tenant share of space or revenue at 75% or more; meeting one test does not meet the other.

Questions that test a dark value case

Which tenant departure does the scenario assume? The answer fixes how much rent and space come out of the occupied case.

What share of space or revenue does that tenant represent? A level of 75% or more is the concentration used in the large-loan screen.

How large is the loan relative to the pool? A share of about 2% or more is the second part of that screen.

What market rent supports the re-leased case? Replacement income drives the dark value more than any other input.

Which operating costs continue while the space is vacant? An owner remains responsible for them after tenant default.

Are legal and reletting costs deducted from value? Those costs reduce cash flow and may not be recouped.

Is the property cash flow impaired or unreliable for valuation? In that case dark value is one of several approaches a loan valuation can draw on.