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SBCC advances multiplex‑housing appendix to CR‑102; sets area and egress limits

Washington State Building Code Council (SBCC) Full Council · February 20, 2026
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

The SBCC voted unanimously to move the multiplex housing appendix—authorizing up to six dwelling units in three stories under the IRC, with an 8,000 sq ft limit and clarified egress, sprinkler and EV‑ready parking rules—into the CR‑102 public comment process with an editorial change to its EV parking table.

The State Building Code Council on Feb. 20 approved moving a new multiplex‑housing appendix into the CR‑102 rulemaking process, clearing the proposed text for public comment with a staff‑directed editorial change to the EV parking language.

The appendix, developed under RCW 19.27.800, is intended to allow three‑story multiplex buildings (three to six dwelling units consolidated in a single structure) to be designed under the International Residential Code (IRC) with targeted modifications where the residential code lacks apartment‑style provisions. Key features adopted for CR‑102 consideration include a maximum…

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