Defines the report as a methodical technical document and its dual role as a communicative and regulatory instrument.

Covers PDAU, POS, CES/COS coefficients, and RPA 99/2003 seismic rules that shape every professional report.

Walks through the five core sections: Entête, État des Lieux, urbanistic justification, Parti Architectural, and technical systems.

Explains the Procès-Verbal de Chantier: attendance, resources, technical observations, and binding signatures.

Distinguishes preliminary, descriptive, valuation, diagnostic, and handover reports across the project lifecycle.

Sets writing principles—objectivity, active voice, specificity—and why captioned visuals are essential.

Closes on accountability, precision, and professionalism as the payoff of rigorous architectural reporting.