What is the typical commission an agent represnting the buyer/leasor would receive on a commercial office space?

hmmmm.....must be a tough question!

It can be as varied as the types of leases themselves.

Tell us the details of the lease and we can give an informed opinion.

I've taken commissions based upon gross/net lease amount, per sf, monthly payments, partial payment up front and the remainder in scheduled payments, referral fee only, lessee paying commission as part of triple net lease, etc.

In our state there is not "Set Commission". That would be equated as price fixing among our state real estate division. But typically I find that it is between 4 and 6 percent. This is obviously split amongst the tenant and landlord rep. However if you are the landlord rep and you may discount it if your firm brings the tenant (instead of 6%, it would be 5% for the transaction).

These splits are usually for deals from 1-5 years. When you get to the 10+ year leases, you typically receive less since it is a larger term (maybe half the commission for all years past 5). However keep in mind that if you want other brokers to bring you tenants, you want to keep them happy and a bigger split will often be the necessary motivation.