Street Widening on map

[Barbara S.]

My neighbor is selling his property and I absolutely love it! It is the unicorn property in the neighborhood.  I am in NYC, this property is tremendous for NYC standards the problem with it is on the survey and street map, a line runs through it labeled "street widening".  Basically stating if the city wants to expand the street there, they can take the property to do so.  How would this effect me? And will it effect resale value? I have searched but cannot find any real information on this "street widening" line.  BTW, this house has stood on the property for about 100 years, it is one of the original farm houses in this area.  Thanks!