WALE Calculator. A clearer first-pass view.
Calculate income-weighted and area-weighted average lease expiry, then see how tenant concentration and remaining lease terms shape a commercial property's lease profile.
Give clients a fast, transparent way to turn a tenancy schedule into an indicative lease-duration and concentration view before valuation or finance discussions.
Keep the source figures visible
Lease expiry dates
The remaining term for each tenancy as at a nominated review date.
Annual rent
The current annual rent used to calculate income-weighted WALE.
Tenancy area
The occupied square metres used to calculate area-weighted WALE.
Tenant details
Names and tenancy labels that keep the result reviewable against the rent roll.
Turn inputs into a reviewable signal
Income WALE
Remaining lease term weighted by each tenant's share of annual rent.
Area WALE
Remaining lease term weighted by each tenant's share of occupied area.
Tenant concentration
The proportion of rent and area represented by the largest tenancies.
Expiry visibility
A clearer view of near-term expiries that may need explanation or mitigation.
Two-tenant industrial property
Assume the review date is 1 July 2026. Tenant A pays 60% of the rent and has five years remaining; Tenant B pays 40% and has three years remaining.
Income WALE = (($300,000 × 5.0) + ($200,000 × 3.0)) ÷ $500,000 = 4.20 years.
The higher-rent tenancy carries more weight in the result.
Two-thirds of the occupied area has five years remaining.
Tenant A is the largest single income concentration.
Move from raw figures to a better review conversation
The tool organises an early scenario. Keep the evidence, assumptions, and professional review attached to the result.
Set the review date
Choose the date from which remaining lease terms should be measured.
Enter the tenancy schedule
Add each tenant's rent, area, and current lease expiry date.
Review both weightings
Compare income and area WALE, then inspect concentration and upcoming expiries.
Keep the result in context
WALE is a lease-duration measure, not a valuation or credit decision.
The result depends on current, accurate rent, area, and expiry information.
Options, break clauses, incentives, vacancies, tenant covenant strength, and market-rent risk require separate review.
Expired leases contribute no remaining term unless a current replacement lease is entered.
Useful for commercial agents & property advisers
Give clients a fast, transparent way to turn a tenancy schedule into an indicative lease-duration and concentration view before valuation or finance discussions.
About the WALE Calculator
Use these answers to understand the tool's purpose before relying on its indicative output.
What does WALE mean?
WALE means weighted average lease expiry. It expresses the average remaining lease term after weighting each tenancy by rent or occupied area.
Should I use income WALE or area WALE?
Both can be useful. Income WALE describes the duration of contracted rental income, while area WALE describes the duration of occupied space. Material differences between them can reveal concentration in higher-rent or larger tenancies.
Does a longer WALE guarantee finance approval?
No. Lenders may also assess tenant quality, lease clauses, vacancies, property type, location, valuation, borrower servicing, leverage, and exit strategy.
Use the calculator, then keep the assumptions attached to the result.
The result is an indicative workflow signal. Broker, adviser, valuer, accountant, and lender review still applies to the full scenario.