Post

Important ICC meeting today on IRC expansion to four units, 3-5 p.m. ET (teams.microsoft.com/meet/2522314...). Jeff Shapiro is presenting his proposal (admin.centerforbuilding.org/wp-content/u...), which will likely be the basis for a change. Attend if you can, speak up with comments/questions

admin.centerforbuilding.orgadmin.centerforbuilding.org

Stephen Jacob Smith

@stephenjacobsmith.com

Note that the proposal does not allow more than two units to be stacked on top of each other, so a traditional New England/Midwestern/Northeastern triple-decker/three-flat/three-fam would not be allowed to go through the IRC:

Rory Stolzenberg

@rorystolzenberg.bsky.social

So it's basically the Oregon attached stacked two-family? www.portland.gov/ppd/resident...

portland.govState building codes updated to allow attached, stacked two-family dwellingsOregon Building Codes Division (BCD) adopted a rule allowing attached, stacked two-family dwellings, previously required to be detached. Learn more about requirements and how to apply for a permit.

Stephen Jacob Smith

@stephenjacobsmith.com

I don’t know if they’ll allow multiple of these to be attached to each other. But it allows four units, as long they’re 1L/1R/2L/2R. It doesn’t require separate egress to the L and R units. So I don’t think it’s that similar.

8/10/26, 2:27 pm0 reposts1 like

Rory Stolzenberg

@rorystolzenberg.bsky.social

Ah, yeah allowing a shared central stair is a meaningful improvement on Oregon. Also maybe unsubdivided townhouses, to the extent that's a thing that zoning sometimes might allow but still prohibits on separate lots (though that doesn't seem like an intended consequence based on the commentary).