Deductions & credits

Thanks for your help Jill!
Just to clarify, I had a contractor build the shell of the office/shed. But I finished wiring, and building out the rest of the structure. Would that fall under Improvements that I made to finish the structure?

And, just to clarify, would this be filed under (Self-employment income and expenses > "choice of business" > Assets > Add Asset to Business Asset Summary> Intangibles, Other property)?