This is considered investment sale. You will report it in the investment section of TurboTax.
In TurboTax Desktop:
Search for sold second home and select the Jump to link.
Answer Yes on the Did you have investment income in 2024? screen, then Continue. If you land on the Your investments and savings screen, select Add Investments.
Select Skip Import.
Select Other
Follow the onscreen instructions.
Enter the amount of gross proceed then, add the deductions/expenses to the cost basis of the land.