Building permitting is a complex and often inefficient process due to limited digitalization and automation, for example the interpretation of fire safety regulations. This research addresses these challenges by investigating the reuse of ontologies to improve the building permitting process. The study focuses on aligning domain-specific ontologies, such as the Ontology-based Building Permit Review (OntoBPR) and the Fire Safety Ontology (FiSa), using the Simple Knowledge Organization System (SKOS). The methodology involves identifying potential use cases, analyzing concept similarities, and mapping relationships with SKOS properties. Two primary use cases illustrate how FiSa can be integrated into the building permit review process and used in content checks. The findings demonstrate that a structured approach to ontology alignment can enhance communication among ontology developers and promote the reuse of concepts. This research underscores the need for further investigation to address interoperability issues in general and improve regulatory compliance in construction.