How do I Comp A Brooklyn Property that I Know Is a teardown?

[J. Lancaster]

How do I Comp A Brooklyn Property on a block full of relatively new Duplex & Triplexes when I know the existing house will have to be torn down before a new one can be built? Do I Comp it against Improved Land sales or the newer structures selling on that street even though it's unknown exactly what the new structure will be ? The lot is a little smaller than most on that block as well. Can someone offer some area insight as I've only just moved back to NY a month ago?