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: Dedicated sections for mobile homes, condominiums, cooperatives, and rehabilitation of historic structures. The "90 UPD" Significance
: Standard dimensions for internal spaces, including: Bedrooms : Typically 100–150 sq. ft. (minimum 10x10 ft).
Be wary of file-sharing sites claiming “Time Saver Standards Housing 90 upd PDF” – many contain malware or incomplete scans. Check file size (a full scan is ~200‑400 MB for 600+ pages).
Once you obtain a PDF version: