WALT: The Acronym, Not the Uncle — Weighted Average Lease Term

I’ve worked with a lot of investors who started out in multifamily investing and then moved into commercial property investing. Many are surprised by the difference in leasing structure and timing.

Most commercial and industrial properties have lease terms ranging from 2 to 10 years, with some highly specialized properties stretching beyond a decade. Commercial tenants will often stay for many years. However, turnover between tenants can bring much longer periods of vacancy compared to residential, and that longer vacancy is then evened out over the life of a longer lease.

Overall, vacancy rates can be similar to multifamily, depending on the commercial class. Office properties tend to run higher, industrial and retail lower, while multifamily vacancy typically sits in the mid single digits by comparison.

If you own or are considering purchasing a commercial property, how can you anticipate the longer vacancy period between tenants? WALT is a measurement to help gauge it.

Understanding Weighted Average Lease Term (WALT) and Its Importance for Investors

Weighted Average Lease Term (WALT) is a fundamental metric used in real estate investing to assess the stability and income potential of commercial properties.

What Is Weighted Average Lease Term (WALT)?

WALT measures the average amount of time left on all of a property’s current leases. Rather than a simple average, WALT is “weighted” because it accounts for the size of each tenant.

WALT is particularly relevant for commercial real estate assets like office buildings, shopping centers, and industrial facilities, where multiple tenants may hold leases of varying lengths. Longer WALT values indicate a property has stable, long-term income with low immediate lease renewal risk. Conversely, a shorter WALT suggests several leases are expiring soon, which may mean future vacancies or renegotiation at different rental rates.

Formula for Calculating WALT

The WALT calculation combines the remaining lease term of each tenant, the area leased, and the income each lease generates:

WALT = (Remaining Lease Term for Each Tenant × Yearly Lease Income) ÷ Total Property Annual Lease Income

This formula accounts for each lease’s income contribution, providing a weighted average of the lease durations.

Example: Midtown Executive Spaces

Consider a mixed-use development called Midtown Executive Spaces, featuring a blend of office, retail, and residential tenants:

  • Tech Innovate, Inc. — a tech company renting 10,000 square feet, with 5 years remaining on its lease, paying $50 per square foot annually.
  • Creative Designs Co. — a marketing agency occupying 5,000 square feet, with 3 years left, paying $45 per square foot annually.
  • HealthFirst Clinic — a health clinic using 3,000 square feet, with 10 years remaining, paying $60 per square foot annually.
  • Farm to Table Bistro — a restaurant taking up 2,000 square feet, with 2 years left, paying $70 per square foot annually.
  • City Books — a bookstore covering 1,000 square feet, with 1 year remaining, paying $40 per square foot annually.

To calculate WALT for Midtown Executive Spaces: multiply the current annual rent for each tenant by that tenant’s remaining lease term, then sum those figures (totaling $5,295,000). Divide that result by the sum of current annual rent for all tenants (totaling $1,085,000). The resulting WALT of approximately 4.88 years gives potential investors and lenders insight into the average time frame current tenants are expected to keep generating rental income — crucial for financial projections and risk assessment.

What Is a Good WALT?

Look for a WALT of at least three years, though the right number varies by asset class. Flex industrial properties typically have a lower WALT, since many flex tenants rent a smaller amount of space with term lengths usually around three years.

Compare that to a large, multi-tenant office building, and it’s easy to see why office buildings typically carry a longer WALT: large office tenants tend to sign longer leases, and many large office buildings have at least one tenant using a substantial amount of space. In particular, look for a WALT of three years or more for flex assets, and five years or more for office building assets.

Why WALT Matters for Investors

WALT helps you determine how much leasing work you’ll need to do, and when. A smaller WALT means you’ll need to find new tenants sooner. Since leasing work can be time-consuming, and expensive if part of the property sits vacant while you search for tenants, this information should factor into the pros and cons of investing in a particular property.

1. Cash Flow Stability and Predictability

A longer WALT means the property has secured tenants committed to paying rent over an extended period. For investors, that translates into stable, predictable net operating income, ideal for meeting debt obligations and projecting reliable returns.

2. Lower Vacancy and Leasing Costs

When leases are set to expire well in the future, owners face fewer near-term vacancy risks. The turnover costs associated with finding new tenants, refurbishing spaces, or renegotiating terms are minimized.

3. Higher Property Valuation

Properties with a longer WALT generally command higher valuations, thanks to the perceived security of prolonged tenant commitment, which contributes positively to net operating income and, in turn, overall property value.

4. Influencing Financing Options and Terms

Properties with a strong WALT often enjoy better financing terms. Lenders view properties with stable, long-term income as less risky, which can lead to lower interest rates and more favorable loan-to-value ratios, enhancing overall returns and investor leverage.

Limitations of WALT

While WALT is a valuable metric, it has limitations. It doesn’t account for other aspects of tenant quality, such as creditworthiness or industry risk. WALT also doesn’t account for diversification: if a single tenant represents a large share of income, the property can still be vulnerable despite a high WALT.

Conclusion

For real estate investors, WALT provides a clear view into the income stability, risk, and potential value of an asset. Longer WALTs are typically attractive, since they imply steady cash flows, lower vacancy risk, and favorable valuation and financing terms.

Many investors we work with enjoy more peace of mind knowing the properties in their portfolio are well balanced and producing stable income.

Do you have a commercial property you need leased or managed? Our commercial property management and leasing team is taking on new clients. Contact us to discuss your commercial property.