Written to EDITORIAL-BIBLE.md v1.0. Cornerstone register:
apartment-condo-hoa-siding-replacement.md(owner/asset-manager voice, code handled plainly).
Re-siding a commercial or large multifamily building in Kansas City is a permitted capital project, and a few things separate it from siding a house: you need a permit on both sides of the state line, you need a licensed contractor on the Kansas side (the owner legally can’t do the work), you’re cladding enough wall that a single hailstorm can damage thousands of square feet at once, and you need a scope detailed enough to put out to competitive bid. This page walks an owner, asset manager, or commercial property manager through the Missouri and Kansas code path and the material decision before pricing — for apartments, mixed-use, and commercial exteriors.
What “commercial” changes about a siding project
Commercial and large multifamily work carries obligations a detached home doesn’t:
- A permit is required. Kansas City, MO exempts only detached one- and two-family dwellings from the exterior-wall-covering permit (Code § 18-16(m)) — apartments, condos, townhome blocks, and commercial structures are not exempt (KCMO).
- A licensed GC is mandatory on the Kansas side. Johnson County requires a contractor’s license for any permitted project, and “all commercial projects must have a licensed General Contractor and licensed Subs — the owner cannot do the work” (Johnson County Contractor Licensing).
- Plan review takes time. Olathe commercial plan review runs roughly 15 business days (City of Olathe); other cities have their own timelines. Build the review window into the schedule, not after it.
- IBC inspections check the wall. Kansas City, MO and the Johnson County cities use IBC 2018, and inspectors check the water-resistive barrier, flashing, and final per each city’s schedule.
Permits and licensing: Missouri vs. Kansas
The biggest difference between the two states is the contractor license. On the Missouri side there’s no statewide GC license, but Kansas City, MO requires city contractor registration (an ICC exam and $1M general-liability insurance naming the City). On the Kansas side, Johnson County requires a contractor’s license for any permitted project, and commercial work cannot be owner-performed.
| Jurisdiction | Building code | Permit for a commercial re-side? | Contractor licensing |
|---|---|---|---|
| Kansas City, MO | IBC 2018 (Ch. 18) | Yes — only 1–2 family is exempt (§ 18-16(m)) | City contractor registration; no statewide MO GC license |
| Overland Park, KS | IBC 2018 (ePLACE) | Yes | Johnson County license required |
| Olathe, KS | IBC | Yes — ~15-day commercial plan review | Licensed GC + subs; owner can’t perform |
| Lee’s Summit, MO | City Chapter 7 | Yes | Permits via Development Services |
Sources: KCMO Permits Division and Contractor Licensing, Overland Park Building Codes, City of Olathe, Johnson County Contractor Licensing. Confirm the adopted code edition and the multifamily permit trigger with each city before relying on specifics. A serious commercial scope plans the permit and licensing path from the start, and assigns who’s responsible for it in the bid.
Why hail drives the commercial material decision
Hail is Kansas City’s most common and most expensive recurring exterior event, and on a large commercial elevation a single storm can damage thousands of square feet at once. Missouri logged a 182% increase in major hail events from 2022 to 2024 — the largest jump of any U.S. state (Insurify, analyzing NOAA data). On a building with that much exterior surface and rising percentage-based wind/hail deductibles, impact resistance is an insurability decision, not just a finish choice. Fire matters next — attached and mixed-use buildings often need Class A cladding — and then lifecycle, since steel and fiber cement run 50-plus years against vinyl’s 20–30.
Which siding fits a commercial building
Commercial selection leads with hail and fire.
| Material | Hail / impact | Fire | Lifespan | Commercial fit |
|---|---|---|---|---|
| Steel | Excellent — most panels UL 2218 Class 4 | Excellent | 50+ yr | Highest durability; common on commercial elevations |
| Fiber cement (James Hardie, HZ5) | Moderate — can crack above ~1.5″ hail | Class A | 50+ yr | Fire-rated standard for attached and mixed-use; specify HZ5 |
| Engineered wood (LP SmartSide) | Strong — warranted against hail up to 1.75″ | Combustible | 40–50 yr | Value plus hail; faster on large elevations |
| Vinyl | Weak — brittle in cold and hail | Combustible | 20–30 yr | Rarely the right call at commercial scale |
Steel carries the highest impact rating — most panels are UL 2218 Class 4 (McElroy Metal) — and is the durability ceiling. Fiber cement is the Class A fire-rated standard for attached and mixed-use buildings; specify the HZ5 cold-climate line for KC’s freeze-thaw, not the Southern HZ10 (James Hardie). Engineered wood is the only material here warranted against hail by its maker, up to 1.75 inches. For the full five-material comparison across freeze-thaw, lifespan, and cost, see best siding for Kansas City hail. Confirm fire-separation requirements with your jurisdiction.
Putting a commercial re-side out to bid
A commercial bid is only comparable if every vendor prices the same scope. Missing line items make a “low bid” look cheap when it’s just incomplete — and the gap shows up as a change order once the wall is open. Every bid should spell out:
- Material and profile, with the exact product line (e.g., James Hardie HZ5, LP SmartSide lap)
- Full tear-off and disposal
- A defined sheathing and rot-repair allowance — not “rot extra”
- The continuous water-resistive barrier
- Flashing — windows, doors, penetrations, and kick-out flashing
- Trim and transitions
- Access equipment for height — lifts, scaffold, staging
- Permit and inspection responsibility, assigned (critical on the Kansas side)
- A tenant-disruption and communication plan
- Warranty terms — material and workmanship, stated separately
- Separated alternates for phasing across buildings or elevations
When every vendor bids that same list, the numbers finally mean something. Full framework: the siding bid and scope review and what a real multifamily siding bid must include.
Who does the work
Installation is handled by a licensed Kansas City exterior crew that does occupied-building and commercial exterior work, led by a contractor who spent more than 15 years at the James Hardie National Office training installers on correct installation and warranty compliance. We don’t present that crew’s reviews or ratings as this site’s own.
FAQ
Q: Does a commercial siding project require a permit in Kansas City? Yes. Kansas City, MO exempts only detached one- and two-family dwellings from the exterior-wall-covering permit (Code § 18-16(m)), so commercial and multifamily buildings need one (KCMO). Kansas-side cities like Overland Park and Olathe also require permits and plan review.
Q: Can the owner do a commercial re-side themselves on the Kansas side? No. Johnson County requires a licensed general contractor and licensed subcontractors for all commercial projects — “the owner cannot do the work” (Johnson County Contractor Licensing). Missouri has no statewide GC license, but Kansas City, MO requires city contractor registration.
Q: Which siding is best for a commercial building in KC? Lead with hail and fire. Steel (UL 2218 Class 4) is the most impact-resistant; fiber cement (HZ5) is the Class A fire-rated standard for attached and mixed-use; engineered wood (LP SmartSide, warranted to 1.75″ hail) balances value and durability. The right pick depends on fire requirements, building height, and budget.
Q: How long does commercial plan review take? It varies by city. Olathe commercial plan review runs roughly 15 business days (City of Olathe); Kansas City, MO and Overland Park have their own timelines. Build the review window into the schedule rather than treating it as paperwork at the end.
Q: How is a commercial bid kept comparable? By making every vendor price the same written scope — material, tear-off, rot allowance, WRB, flashing, access, permit responsibility, tenant plan, warranty, and separated alternates. A bid missing those isn’t cheaper; it’s less complete, and the difference returns as change orders.
Q: Is this site a licensed contractor? No. This is a Kansas City multifamily and commercial siding planning resource that helps owners and managers define scope and navigate the permit and licensing path before bids, then connects them with a licensed local crew.
CTA
Tell us about the building — type, scale, current siding, and jurisdiction — and we’ll help turn it into a bid-ready commercial scope with the Missouri or Kansas permit and licensing path mapped. Get a siding replacement review.
Related: apartment, condo & HOA siding replacement · best siding for KC hail · siding bid & scope review · what a real bid must include