For a given property, an interlot drainage easement grants to parties other than the property owner certain limited rights to use a portion of the property to insure adequate storm water drainage from the general area. Governments often get easements to make connections to their underground drainage infrastructure.
An interlot drainage easement may restrict the rights of the property owner concerning the portion of his property covered by the easement. Things generally prohibited within the easement area include permanent structures of any kind, newly planted trees and extensive landscaping. These restrictions help insure the free flow of water through the easement area or ready access to underground drain lines that may require maintenance.