Noise Disturbances and Foot Traffic

We previously said that a neighbor has no standing in bais din to stop a yeshiva from opening in his residential neighborhood. If a yeshiva is building next door to a residential home, does the homeowner at least have a right to demand that they stain the windows facing his property so that the bochurim do not have view into his yard?

Reuven needed a variance for a construction project. His neighbor, Shimon, claimed that he would be negatively impacted by that variance. He went to the zoning board and tried to stop it but the board ruled in favor of Reuven and granted the variance. Shimon still has one more venue to stop the variance from being adopted, which is to litigate. Is he permitted to go to court and assert his right to have the variance’s approval revoked?

Reuven has a swimming pool in his backyard with a sufficient mechitzah to prevent his neighbors from seeing in. One of his neighbors wants to build another floor onto his house. If he puts in a window, it will necessitate Reuven to make a taller mechitzah to block the line of sight from the new floor. Who is responsible to pay for the new mechitzah ?

Chaim is building a pool in his backyard. His neighbor has an existing window that faced his yard. Now that the swimming pool is being built, the window will overlook the pool. Until now, when it just provided a view of the backyard, the window was no big deal. Now that he is making a pool, however, Chaim wants to force his neighbor to either close off his window or pay for a mechitzah to block the view of the pool. Is he able to do this?