started/ has started

[meedfried]

Hello,

I was watching an house being built.

Should I say to someone " when do you think this project started " or " when do you think this project has started"

It could be, the difference between "when did it start" or " when has it started"

Thank you

[Josef Essberger]

When do you think this project started?

When did it start?

a house

[meedfried]

Thank you!