Check your local county recorder, assessor, or building department for existing permit plans
Search your home purchase documents, seller disclosures, or closing packet for floor plans
Contact the original builder, architect, or developer if the home is relatively new
Hire a licensed architect, draftsman, or surveyor to create a measured blueprint
Use a home measurement service to produce floor plans and blueprints
Measure each room, wall, door, and window yourself and draft the layout
Use floor plan software or apps to convert measurements into a blueprint
Request copies from your homeowners association if they maintain property records
Review renovation permits if previous work included submitted plans
Order a property survey if you need site and boundary information along with the blueprint