Clearing the Path for Movable Tiny Homes: Why RB42 Matters
Relocatable tiny homes are gaining traction as a practical, flexible housing option but
inconsistent code language continues to limit where and how they can be placed.
ICC proposal RB42 addresses this gap.
RB42, scheduled for a vote on April 22, introduces clearer, nationally consistent guidance within
the residential code for movable tiny homes. It does not mandate local adoption. Instead, it
provides jurisdictions with a framework to evaluate safety, placement, and compliance.
Importantly, this proposal builds within Appendix BB – Tiny Houses, which has already been
adopted by more than half of U.S. jurisdictions. By refining language within an existing and
widely used framework, RB42 offers a practical path toward greater consistency without
introducing an entirely new regulatory structure.
This clarity has direct industry implications. When jurisdictions have clearer guidance:
● approvals become more predictable
● buyer hesitation decreases
● and builders can operate with greater confidence in how their homes will be received
and placed
Reducing ambiguity at the code level supports more stable, scalable growth across the tiny
home sector. At the same time, clearer pathways expand access to housing options for
individuals and communities seeking safe, flexible alternatives.
How you can help:
Advancing code proposals like RB42 requires coordinated industry participation.
1. Provide Financial Support for Representation
In-person testimony and technical representation are critical to ensuring this proposal receives
informed and balanced consideration. Travel, preparation, and expert participation all require
funding. If your company or organization is in a position to contribute, your support directly
strengthens this effort.
Industry leaders contributing $300 or more will receive a custom made commemorative token
marking their role in advancing relocatable tiny home code reform.
2. Demonstrate Broad Support
Public support helps reinforce the importance of this issue across communities and
stakeholders. You can sign and share the petition with your network:
Support Petition
3. Offer Organizational Endorsement
Companies and industry organizations can further support this effort through formal letters of
endorsement or statements of support. Please email letters to Macy Miller – mizacy@gmail.com.
If you’re a builder, advocate, or resident who cares about practical housing solutions, now is
the time to get involved. Together, we can make it easier for communities to welcome movable
tiny homes responsibly.