Also searched as: weighted average lease expiry
Rent weighting follows the money, so a large tenant on a high rent pulls the figure towards its own expiry. Area weighting counts every square foot the same whatever it pays, so a big unit on a low rent counts for more. A wide gap between the two means rent per square foot differs a lot between the long leases and the short ones. Emirates REIT reported a weighted average lease expiry of 8.5 years at 30 September 2016, much of it schools on long leases. The calculator leaves vacant space out of both and shows WALE by area beside the rent-weighted WAULT.
This explains the general case. If WALE has come up in a live deal of yours, talk to the team: specific answers, registered numbers, no obligation.