Use a common property structure
Assign stable identifiers to each property and building, with addresses and other names kept as searchable attributes. Define a shared set of categories for drawings, inspections, projects, service records, product information, and open issues. Use the same date and document-status conventions across locations.
Keep local responsibility visible
Name a record owner at each property and a portfolio contact for standards. Specify who adds new files, checks metadata, and resolves duplicates. Do not rely on a central folder to explain which manager knows whether a document is current.
Compare like information
Before comparing condition or project status, check that the underlying records cover the same scope and observation period. A recently updated file does not necessarily mean a recently inspected asset. Keep missing information visible in portfolio reporting.
Design for additions and transitions
Define how a newly acquired building enters the system and how records are exported when management changes. Preserve prior identifiers and project links. Review a small set of records periodically for usability before repeating the structure across further properties.