One of the best resources for locating floor plans is the Avery Index to Architectural Periodicals
Search for the name of the building you're interested in, eg. The Louvre
Look for the 'Search Options' section on the database homepage. Locate Document feature and select maps, elevations, drawings etc.
Searching in this manner will retrieve records that have these terms in the 'document feature' field.
Image source: Plan of Blayney Public School 1886 by State Records NSW
The Collaboration Hub (previously known as the Resource Centre) is provided for Curtin students and staff from the schools of Built Environment and Art & Design, and supports the schools teaching and learning objectives. Further details can be found by visiting the Hub, located in the Architecture building (Building 201 - level 3) or by searching through the Collaboration Hub's Catalogue.
Architectural structure by Liu Li