Real Estate, Commercial

How to Underwrite an Industrial Property

Underwrite an industrial property by testing the building's functionality and the tenant's credit together. Confirm clear height, loading, truck court and power meet modern demand, then model rollover and mark-to-market rents. The key metrics are in-place rent versus market, WALT, tenant credit, DSCR and debt yield, plus re-leasing downtime for the specific building type.

What makes industrial underwriting different

Industrial underwriting starts with the box. Clear height, column spacing, dock door count, trailer parking, truck court depth, sprinklers and power determine how many potential tenants can use the space and therefore how quickly it re-leases. Many industrial buildings are leased to a single tenant on NNN terms, so the deal is often binary: strong cash flow while the tenant stays, then a vacancy period and capital spend if it leaves. Value also comes from embedded rent growth, since older leases may sit well below current market rents. Location relative to highways, ports, population and labor is central to demand.

Lenders focus on tenant credit, lease term relative to loan maturity and the downtime and cost to re-lease a functional building. They may give credit for a generic, divisible building more easily than for a specialized facility. Equity investors focus on the mark-to-market opportunity, replacement cost and supply pipeline, and they may accept short remaining terms if they believe they can push rents at rollover. Specialized subtypes such as cold storage, manufacturing and data centers need their own underwriting because tenant-specific improvements change both value and re-leasing risk.

Key metrics

In-Place Rent vs Market Rent

Older industrial leases can be well below current market, which drives value and rollover upside, or above market, which signals downside.

Weighted Average Lease Term (WALT)

Single-tenant or few-tenant buildings make lease term a direct proxy for cash flow certainty.

Lenders typically prefer lease term that extends beyond loan maturity for single-tenant industrial.

Clear Height and Functionality

Modern distribution users want higher clear heights and adequate loading. Obsolete specs narrow the tenant pool and extend downtime.

Many logistics users look for clear heights in the high 20s to 30s of feet or more for modern bulk distribution.

DSCR

Confirms NNN rent covers debt service with cushion.

Lenders commonly look for about 1.25x on stabilized industrial.

Debt Yield

Protects lenders from cap rate compression that may not persist.

Tenant Credit

In single-tenant buildings, tenant default is the primary credit event.

How to underwrite it, step by step

Inspect the building specifications: clear height, dock doors, drive-ins, truck court, trailer parking, power and sprinklers.
Abstract leases for term, rent escalations, renewal options, expense structure and tenant improvement obligations.
Evaluate tenant credit and the operational importance of the facility to the tenant.
Compare in-place rents to recent leasing comps and calculate the mark-to-market spread.
Assess submarket vacancy, new construction pipeline and access to highways, ports and labor.
Model rollover with realistic downtime, free rent and TI/LC for this building type.
Size the loan on in-place NOI with DSCR and debt yield and run a tenant vacancy downside.
Confirm environmental history, especially for manufacturing or truck-intensive uses.

Due diligence checklist

Leases, amendments and guaranties
Rent roll and lease abstracts
Tenant financial statements or credit reports
Tenant estoppel certificates
Building specifications and site plan
Property condition report covering roof, slab and dock equipment
T12 and expense recovery reconciliations
Leasing comps and submarket supply data
Phase I environmental site assessment and Phase II if indicated
Zoning report confirming permitted industrial uses
ALTA survey
Appraisal

Key risks and mitigants

Single tenant vacates, leaving zero income.

Size loan to account for downtime, require a re-tenanting reserve or cash sweep if notice is not given by a set date.

Building functionality is outdated relative to modern users.

Underwrite longer downtime and capital to upgrade, or lower leverage.

Heavy new speculative supply in the submarket.

Review construction pipeline and underwrite slower rent growth and higher vacancy.

Environmental contamination from manufacturing or fuel storage.

Require Phase I and Phase II where warranted and secure environmental indemnities or insurance.

Tenant-specific improvements have little value to the next user.

Discount specialized improvements in valuation and require tenant restoration obligations.

Typical financing and deal structure

Industrial properties are financed with life company loans, CMBS, bank loans and debt funds. Stabilized, well-located logistics assets with creditworthy tenants generally access favorable terms and longer amortization. Single-tenant buildings may be financed with loans structured around the lease, including cash sweeps if the tenant does not renew by a set notice date. Owner-occupied industrial buildings are often financed with SBA 504 loans, which can offer high leverage and long fixed rates. Value-add and lease-up deals frequently use bridge loans with future funding for TI and leasing. Development is typically funded with construction loans at lower loan-to-cost plus sponsor equity, often in joint venture with institutional capital.

Red flags

Clear height or loading that does not meet the needs of the typical tenant in the submarket.
Tenant lease expires shortly after closing without renewal discussions.
Environmental reports showing USTs, chlorinated solvents or unresolved contamination.
Rent well above market that will roll down sharply at expiration.
Significant deferred roof or slab repairs.

Frequently asked questions

How do lenders underwrite single-tenant industrial buildings?

Lenders look closely at tenant credit, remaining lease term relative to the loan term, and the building's re-leasing prospects if the tenant leaves. They size the loan using DSCR and debt yield on in-place NNN rent, often require a cash sweep if the tenant has not renewed by a set date before expiration, and may lower leverage for specialized or functionally limited buildings.

What is mark-to-market in industrial real estate?

Mark-to-market is the difference between in-place rent and the rent the space would command if leased today. In many industrial markets, older leases sit below current rents, giving owners upside at rollover. Underwriters estimate the spread using recent comparable leases and adjust for the building's functionality, location and lease structure.

Why does clear height matter for warehouse underwriting?

Clear height determines how much product a tenant can store vertically, which directly affects storage capacity and operational efficiency. Buildings with low clear heights appeal to fewer users and may need longer downtime and lower rents to re-lease. Underwriters compare clear height, loading and truck court depth with what tenants in the submarket typically require.

Can owner-occupied warehouses use SBA loans?

Yes. Owner-occupied industrial buildings are often financed with SBA 504 or 7(a) loans when the operating business occupies at least the required share of the space, typically 51% for existing buildings. SBA 504 in particular can offer high leverage with long-term fixed rates. Underwriting then focuses on the operating company's cash flow, not just the real estate.

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Educational content, not investment, credit, legal or tax advice. Benchmarks are common practitioner rules of thumb and vary by lender, market and cycle.