Systems and methods described herein provide for building policies using namespaces. A device may receive a request to access a resource in a computing environment. The request may include one or more attributes. The device may identify a set of namespaces having domain-specific policy grammar to generate domain-specific policies. The device may determine a namespace from the identified set of namespaces which corresponds to the one or more attributes of the request. The device may generate, using domain-specific policy grammar of the determined namespace, a domain-specific policy to apply to the request.