Hmmm... I guess I'd start by asking _why_ you want to add a porch?

My first thought would be to extend the pent roof on the side of the garage over the front door - but that wouldn't really be a "porch".

Following, just to see if anyone comes up with anything. This is a stately home, not really "porchy." Maybe you'd get more responses on the Remodeling forum? And lots of architect-types hang out at the Building a Home forum.

Are you looking for an old-fashioned porch that would allow room for chairs, a swing, etc.? Or just a roof over the entryway?

I really like how the sidewalk wraps up to the front door with plenty of room and no steps. (Not fond of the tiny stoop, though.)