When does it make sense to consider hourly billing methods?
Again, this is a matter of negotiation, but it makes special sense when there are many unknowns. Indeed, many projects begin this way, using hourly billing until the scope of services is determined and it is possible to establish a stipulated sum. It may also make sense to use this approach for construction contract administration (since the level of professional services may vary with the contractors selected and unforeseen site problems) and special services, such as energy and economic analyses.
