local news last Friday and nothing much remains of the structure that was going under some repairs at the time. Looking at DOB permits, the empty 8-unit brownstone that was formerly attached to another at one point was in the process of some major structural repairs but the entire building completely collapsed before getting the needed reinforcement.
According to Streeteasy, the property was sold last September for $600K and the new owners apparently had been trying to have much need structural work done to keep it standing. There are quite a few row house blocks with open lots in Harlem but what makes this particular building different is that it was one of the only ones that had vacant lots on both sides which might of made it less unstable than most. This brownstone is just outside of the Mount Morris Park Historic District so the lot will probably be sold off for a new construction to arrive in the future.