This includes the extent of the project and what you are looking for as an end result.
[For example] If you are looking for a home remodel, how much of the house will be included in the remodel? Will you be updating the appliances or the heating/cooling units? Are there any special items you are looking for to be included in the remodel?
What kind of exploring have you done as to ideas and directions you would like to go with your project? Have you met with an architect or designer? If so, do you have concepts or plans? If not, are interested in references for architects or designers?
When are you looking to get started on your project? When are you hoping for completion?