When do I need a property survey

The question should be asked more often, but isn't.
A survey should be ordered when:
Any land is purchased,
Before land is sold,
Prior to any activity near a lot line such as fence construction or planting,
Prior to, during and/or after any utility modifications near a property line,
Prior to, during and or after any neighbors activities that may affect your property rights,
Prior to, during or after and street improvements.
When neighbors land is for sale or changes ownership.
When refinancing property.
Prior to and sometimes after additions added to a house or building.
These are some of the most common times but if you have any uncertainty to your property line location have it surveyed!