LLC rental property sold

[Rose Parc]

Hi, just sold my rental property held in an llc. 

1) 1099S will be reported on 1065, but how do I increase the cost basis of the house with the improvements made? i.e. new outside hand rails? What if those improvements were made before it turned into a rental property?

2) Recapture depreciation - assuming that means I have to add back to my cost all the depreciation claimed during the rental years?

3) Are there any other places that I have to claim my sale? Schedule D or form 4797?

Thank you!