There are many situations where you might need surveys done on your property or a piece of property you're considering purchasing. While land surveys might seem expensive, they are not as expensive as needing to defend a building you've already constructed or even who owns a fence.
At the initial sign of a problem with your neighbor about property lines, begin your research into any property lines which have already been done. More often than not you can find information at your building department as well as the tax assessors office.

In fact, you might be able to solve the issue without even hiring a surveyor or a lawyer. So research throughly first before panicking in regards to a problem. When you don't find your answer there or there is a discrepancy of one sort or another, you may have to have the property lines established.
Issues needing a surveyor will be those where there's discrepancy in surveyed lines and there is already a building or fence on the incorrect side of the initial survey lines. In Mobile Mapping Ludgershall as these, often it will be a court case and not simply having it re-surveyed.
It's best if you can figure out a way to steer clear of the high cost of court but in certain situations it could be necessary. Look at previous cases in your community and see if you can find a precedent, then make an effort to settle out of court. If not, then you may need a lawyer or attorney that specializes in property lines together with have the area resurveyed.
There is absolutely no doubt that having property surveyed is expensive, if you believe you might have an issue or are considering a new piece of property, you will want to know that the property dimensions are correct. Assuming you have a discrepancy in the dimensions, then there is a good bet you need to have land surveys done to be able to prove who owns the tree, fence or outbuilding.