Look at the property map and determine which lot is yours by finding the parcel number as recorded in the deed records. Your lot will be shown as something similar to “Parcel 2 - Lot 14”. If the main property was divided at some point in the past you may see a listing for "Parcel 2 - Lot 14A."
Verify that it is the correct parcel by comparing the surrounding street names and locations. If you know the addresses or names of any of your neighbors, use them to verify that it is the correct lot. The property lines will be shown completely drawn out.
Check with your local tax records office. The tax records also will list the property because the office must have the information to assess the amount of property tax each year. The tax records office can provide a plot map, which also will show the property lines.