Can I put a fence on my property if it will block my neighbor's access?
Question Details: I agreed to let neighbor share driveway as long as they lived there. However, now they have moved and are putting the house up for sale. I'm afraid that whoever buys the house may block the entrance. They originally had a driveway and removed pipe from the ditch so now they would have to put a new pipe in and cover it up with dirt. I want to put up a fence on our side of the property which would block off access to my driveway. They have lived there about 10 years. Can I do this?
If the neighboring property could access a public road some other way--e.g. the property fronts on a public road, so they could build their own, separate driveway--you can put up a fence on your own land even if it blocks the current access you voluntarily, as a courtesy, allowed that property to use. You have no obligation to make things easier or less expensive, etc. for your neighbors, so as long as this will not strand them without some way to access a public road, you may do it.
However, if the way the properties are set up, there is no way for them to get to a public road without going over your property (e.g. using your driveway), you can't effectively do this, since if you do, they could go to court and get an easement by necessity created: that is, when a property is "landlocked" and cannot get out to a public road except over or through another's property, a court has the power to create an easement giving the landlocked property access.