Bought a MR3 property and not sure how to proceed

[Topher Sikorra]

I live in the Seattle area, found a house for sale on Craigslist in Green Lake, and bought it with a VA loan @ low 2's%. It turns out the L-shaped properties surrounding me are all owned by the same person, and he just bought another adjacent lot, and he plans to sell the whole chunk to a developer.

My schedule will likely be butting up against an 80ft multi-family structure.

I have no idea whether I just cash in, and move on to the next deal, or hold on to this ~2300sqft lot, and wait for everything else to keep gaining value. Could use some points of view from the local community here.