Access to my house though a ONLY narrow lane

My house is accessible only though a narrow lane. This lane is shared by another neighbour. There are other 2 houses who can access this lane, however they have alternative access to main sub road. On the opposite side of the lane there is an empty plot. My house is at the end of the lane, this is the only way I can access main road. I suspect someone (may be even my neighbours)may block the lane to expand their house if the empty plot owner agrees.Is it possible to block the lane?Kindly suggest