It is a coincidence that we often see in Real Estate. An example of the same is that three homes on Stillery in Tewksbury were listed and all sold within a few months of each other. Often multiple homes on the same street will drive a lot of buyer interest and activitiy and sell within the same time period. Round Top is a great location in Tewksbury, very scenic yet so convenient to Route 78, a commuters dream!
As far as I know, there is nothing significant going on with Round Top Road. Sometimes we see several houses in one area pop on the market at the same time. Usually nothing to worry about.
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