Two approval lanes
Factory-built housing review can support the structure and model documentation, while the local jurisdiction still reviews how that structure lands on a specific property. The buyer needs both ideas separated before trusting a budget.
What the R numbers help with
R-22345 and R-22348 are useful product proof points because they identify model documentation and state-level factory-built housing review context. They make the product more credible than an unsupported rendering.
What remains local
Foundation, anchoring, utility connections, placement, setbacks, drainage, fire access, inspection sequence, and site conditions are local project issues. The factory approval packet does not make those disappear.
Why this affects cost
Local review can create plan revisions, engineering requirements, utility upgrades, inspection fees, or site-work changes. That is why permits and local fees deserve their own calculator line.
How to talk about it safely
The safe sales message is: the product has factory-built documentation to review, and the installed project still needs local site approval. That builds confidence without making a site-ready permit claim.