There are multiple resources that should allow property owners to determine how large their lot is, including a written description on a property deed or a listing in the property survey that was included with the purchase of the land or home site. The property survey may include a map, or plat, with precise measurements and a drawn diagram of the property, detailing exact measurements including any odd angles in the property boundaries. In some cases, property boundaries are marked by metal pins or other stake-like signifiers that are stuck in the ground at the extreme corners of the property boundaries, allowing property owners to get a rough idea of where their ownership ends and their neighbors' begins.
Those people who do not have any of the traditional tools or resources for determining property lines may need to hire a surveyor to draw up a plat, or property map, for future use. The surveyor should be a professional who knows how to use equipment such as GPS and computer mapping software to ensure an accurately drawn and easy to read property map. In some cases, a property owner's local municipal city, town or county government may keep a record of property boundaries and may be able to provide the owner with a predrawn map.