To create sparse trees and special lists with selection based on properties, the same commands are used as for tag searches (see Tag searches).
Create a sparse tree with all matching entries. With a C-u prefix argument, ignore headlines that are not a TODO line.
Create a global list of tag/property matches from all agenda files. See Matching tags and properties.
Create a global list of tag matches from all agenda files, but check
only TODO items and force checking of subitems (see the option
The syntax for the search string is described in Matching tags and properties.
There is also a special command for creating sparse trees based on a single property:
Create a sparse tree based on the value of a property. This first prompts for the name of a property, and then for a value. A sparse tree is created with all entries that define this property with the given value. If you enclose the value in curly braces, it is interpreted as a regular expression and matched against the property values.