Property assessments help a homeowner determine value in the existing landscape they own and help to set guidelines for care and continued development. Within an assessment you may have a planting inventory, defining all the ornamental trees, woody ornamentals, evergreens and perennials, also an identification of sculptures, built in structures like cabanas and pergolas, pools, sports courts and other outdoor living features you may have. A quick assessment no more then 20 minutes is free but a comprehensive assessment to understand all that is needed to maintain value will cost you all based on how involved and or large the property is.