Weighted Average Lease Term in Commercial Real Estate

1. State the metric before calculating it

Define whether the metric means weighted average lease term, weighted average lease expiry or another internal measure. State the effective date, units, lease population, weighting basis and treatment of vacancy, holdovers, early termination and options.

Do not assume WALT and WALE are used identically by every seller, lender, appraiser or analyst. Recalculate from the source lease record when the definition is missing.

• Effective date
• Lease population
• Weighting basis
• Contractual expiry
• Vacancy
• Options
• Termination rights

2. Build the lease population

List each legally documented tenancy, premises, area, current rent and contractual expiry. Reconcile the list to executed leases, amendments, assignments, the rent roll and physical occupancy.

Identify vacant, owner-occupied, licence, storage, parking, month-to-month, holdover and undocumented occupancy separately. Excluding them can make a portfolio appear longer-dated than the complete property exposure.

3. Select and disclose the weighting basis

Common internal calculations may weight remaining term by leased area, current base rent or another defined income measure. Each answers a different question and can produce a different result.

Name the numerator and denominator precisely. Do not label a base-rent-weighted calculation as income-weighted if additional rent, percentage rent or other revenue is excluded.

4. Calculate contractual remaining term

For each lease, measure time from the stated effective date to the current contractual expiry, subject to counsel's interpretation of termination or other relevant rights. Apply the selected weight and divide the weighted total by the included population.

Keep the source dates and intermediate calculations visible. Round only the displayed result so another reviewer can reproduce it.

5. Keep options in a separate scenario

An unexercised renewal or extension option is not committed term. Show current contractual term first, then a clearly labelled scenario only if the buyer has reviewed exercise conditions, notice dates, rent-setting mechanics and termination rights.

Do not select only favourable options or assume every tenant renews. Sensitivity analysis should show the actual dependency rather than converting possibility into fact.

6. Do not let averages hide concentration

Pair WALT with a lease-expiry schedule showing area and rent by year, largest tenants, property type, market and contractual break points. A stable average can conceal a large near-term expiry.

Show both weighted and unweighted views where useful. One large tenant can dominate an income-weighted result while numerous small leases create operational workload and capital exposure.

7. Connect term to tenant covenant

Long remaining term can support cash-flow visibility only to the extent that the tenant and security can perform. Review current tenant and guarantor evidence, payment history and appropriately matched registry or insolvency records.

WALT is not a tenant credit score. A longer lease from a weak or unsupported entity may not create the same risk profile as a shorter lease with different covenant and re-leasing characteristics.

8. Connect term to property and market

Assess the building's utility, lease rent relative to current market evidence, landlord obligations, capital needs and re-leasing cost. Above-market rent, specialized improvements or deferred capital can change the meaning of remaining term.

Model expiry against realistic downtime, inducements, tenant improvements, commissions and operating costs. A term metric alone does not establish value or liquidity.

9. Recalculate at each decision date

Update the metric when time passes, leases commence or expire, options are exercised, tenants assign, areas change, notices arrive or new information corrects the record. Preserve the prior dated calculation for auditability.

A number copied from an offering memorandum can become stale before condition waiver or closing. Tie every published metric to a dated source file and responsible preparer.

10. Use the metric within a complete decision

Present WALT or WALE beside the expiry schedule, tenant evidence, NOI bridge, capital plan, financing assumptions and downside scenarios. State all exclusions and limitations.

This guide is educational and does not prescribe a universal industry formula. It is not legal, appraisal, accounting, lending or investment advice; transaction participants should agree on definitions before relying on a calculation.