This question is fairly vague. Was this in the income section or deductions? Are you in real estate? renting out property? Perhaps one of your answers in the introductory phase of the tax return triggered this question.
You can answer questions related to your home, under deductions and credits.
This discussion appears to be related to certain rental credits for a State tax return. Form RCC146 is for Vermont, which asks for a SPAN (School Property Account Number) to complete the form.
If your state offers a rental credit, enter your own address when prompted for the rental property address in the State taxes section.