There are few type of properties: dropdown, checkbox, plain text (string).
First 2 types are defined by validation rule which persists as constant id in property table when property label can be changed for some reason and you'll need to modify all related scripts/conditions. So query like:
label = 'Server Type' AND owning_cr = 'cr:123456' AND value = 'DEV'
will work but this one would be better:
validation_rule = 123456 AND owning_cr = 'cr:123456' AND value = 'DEV'