The Promoting Resilient Buildings Act of 2025 amends the Robert T. Stafford Disaster Relief and Emergency Assistance Act to require that mitigation projects use the two most recent editions of consensus‑based codes and standards. It establishes a residential resilience pilot program that allows the Administrator of FEMA to award grants for retrofits that reduce damage from natural hazards. The program can use no more than 10 percent of the annual assistance available under Section 203 and must begin within one year of enactment and end on September 30, 2030. 'Residential resilient retrofits' are defined as projects that improve a home’s resistance to hazards such as floods, tornadoes, earthquakes, wildfires, and wind, and must align with the latest code editions. Eligible measures include elevations, floodproofing, tornado safe rooms, seismic retrofits, wildfire mitigation, wind retrofits, and other approved techniques. Grants are prioritized for individuals with financial need. The Administrator must submit a comprehensive report six years after enactment detailing awards, costs, demographics, avoided disaster impacts, and program challenges. The Act also amends Section 205 by removing paragraph (5) and renumbering subsequent paragraphs, clarifying that the changes affect only the predisaster mitigation and revolving loan fund programs. No other federal programs are impacted, and the legislation requires the Administrator to report to the Senate Homeland Security Committee and the House Transportation and Infrastructure Committee, ensuring oversight and transparency.