You Invest in a Pro-Host State. Here Are the Local STR Rules That State Preemption Cannot Touch.

State preemption means a city cannot tell you that your property is not allowed to be a short-term rental. That is the beginning and end of what it does. It does not mean a fire marshal cannot cite you for missing smoke detectors. It does not mean your HOA board cannot vote to ban nightly rentals at next month’s meeting. And it certainly does not mean you can skip the county health inspection for your pool.

I have spent the last three months reviewing every major STR preemption statute on the books (yes, including the footnotes, because that is apparently how I spend my evenings now), from Indiana’s brand-new HEA 1210 to Idaho’s HB 583. The pattern is the same in every state: the legislature gave you the right to operate. It did not give you the right to operate without rules.

This article provides general information and should not be construed as legal advice. Consult a qualified attorney in your jurisdiction for advice specific to your situation.

What Preemption Actually Does (and What It Does Not)

Picture this: you close on a three-bedroom ranch in suburban Indianapolis. Indiana just signed HEA 1210 into law, preempting cities from banning rentals. You list the property on Airbnb that weekend. Two weeks later, the county fire marshal shows up and hands you a correction notice for inadequate smoke detector placement.

That is not a contradiction. That is preemption working exactly as designed.

Preemption statutes target one specific category of local regulation: the power to prohibit or cap short-term rental activity. They strip municipalities (and in most states, counties too) of the authority to say “no STRs here.” What they preserve is the full spectrum of health, safety, and nuisance regulation that applies to all residential properties. Fire codes do not disappear because a legislature decided STRs should be legal. Building codes do not vanish. Noise ordinances remain on the books.

And HOA covenants? Those exist in an entirely separate legal universe.

The Five Categories of Rules That Survive Every Preemption Law

1. Fire and Life Safety Codes

Every preemption statute reviewed for this guide explicitly preserves fire and life safety enforcement. NFPA 72 (the National Fire Alarm and Signaling Code) requires smoke alarms in every sleeping room, outside each sleeping area, and on every level of a dwelling. NFPA 101 (the Life Safety Code) requires carbon monoxide detectors on every floor with fuel-burning appliances or attached garages.

Idaho’s HB 583, one of the broadest preemption statutes in the country, still preserved the requirement for smoke alarms in every sleeping area, a fire extinguisher and CO detector on each floor, and removable escape ladders for sleeping areas above ground level. Those are not optional. They are the floor.

2. HOA Covenants, Conditions, and Restrictions

This trips up more investors than anything else. CC&Rs are private contracts between you and your homeowners association. When a state legislature passes preemption, it restricts government authority. It does not rewrite your deed restrictions.

In Arizona, where STR preemption has been law since 2016, HOAs retain full authority to prohibit rentals through their CC&Rs. Indiana’s HEA 1210 does something unusual: HOAs can still restrict rentals, but only members who use their property as a homestead (as defined under IC 6-1.1-12-37) may vote on new rental restrictions. That is a protection for investors, but it is not a blanket override of existing HOA rules.

3. County Health and Sanitation Codes

County health departments operate under authority granted by state health codes, not municipal ordinances. Their jurisdiction over pool safety, septic systems, water quality, and general sanitation is independent of preemption. If your STR has a pool, a hot tub, or a well water system, the county health department can inspect and cite regardless of the city’s STR policy.

4. Noise, Parking, and Nuisance Ordinances

Every preemption statute explicitly preserves municipal authority to enforce noise limits, parking regulations, and general nuisance ordinances. Arizona’s statute spells it out: cities may “adopt and enforce use and zoning ordinances, including ordinances related to noise, protection of welfare, property maintenance and other nuisance issues.” A city that cannot ban your STR can absolutely fine you for a 2 a.m. noise complaint.

5. Building Codes and Occupancy Limits

International Building Code (IBC) occupancy standards set maximum occupancy based on square footage, egress capacity, and structural classification. Idaho’s HB 583 ties its preserved occupancy limits directly to IBC standards. If you are converting a space or finishing a basement, local building permits and inspections still apply. Preemption does not waive your obligation to pull permits.

State-by-State: What Each Preemption Law Preserves

Indiana (HEA 1210, Signed 2026, Effective July 1, 2026)

Indiana’s law prohibits any “unit” of local government from adopting or enforcing rules that ban or restrict use of privately owned residential property as a rental. What survives: fire and building codes, health and sanitation enforcement, noise and nuisance ordinances, and all county-level regulatory authority. HOAs can still restrict rentals, but only homestead-occupant members may vote on new rental restrictions. Ordinances adopted before January 1, 2026 receive a compliance transition period but must ultimately conform.

Idaho (HB 583, Signed March 2026, Effective July 1, 2026)

Arguably the broadest preemption in the country. It prohibits political subdivisions from requiring structural modifications, additional parking beyond residential standards, professional management, additional insurance, sprinkler systems, STR-specific fire inspections, or reporting of rental activity. What survives: smoke alarms in sleeping areas, fire extinguishers and CO detectors on each floor, escape ladders for above-ground sleeping areas, IBC-based occupancy limits, and all noise, nuisance, and general residential ordinances.

Arizona (A.R.S. 9-500.39, Since 2016)

The most mature preemption framework on this list. Cities may regulate STRs for “the primary purpose of protecting the public’s health and safety,” including fire and building codes, health and sanitation, transportation and traffic control, and waste and pollution control. Cities may also enforce zoning ordinances related to noise, welfare, property maintenance, and nuisance. Civil penalties for verified violations can reach $1,000 per occurrence. HOA CC&Rs remain fully enforceable.

Florida (Chapter 509, Preemption Since 2011)

No local law may “prohibit vacation rentals or regulate the duration or frequency of rental.” What survives: registration and licensing requirements, safety inspections, noise and nuisance limits, parking regulations, occupancy caps, and the requirement for a 24/7 responsible party. Critical detail: any local ordinance adopted on or before June 1, 2011 is grandfathered and remains fully enforceable, including outright bans. All vacation rentals also require a state DBPR (Department of Business and Professional Regulation) license.

Missouri (SB 104/HB 109, Pending)

Not yet law. SB 1066 (addressing STR property tax classification) passed the Senate 30-3 in March 2026, but the companion STR preemption bills remain in committee. If passed, they would prohibit local bans while preserving health and safety regulation and requiring platforms to collect lodging taxes. The legislature remains in session through December 2026. Investors buying in Missouri on the assumption that preemption is a done deal should verify legislative status before closing.

Texas (No STR-Specific Preemption)

Texas lands on “pro-host” lists frequently, and its general business climate creates an impression of regulatory protection. But Texas has no STR-specific preemption statute. HB 2127, the broad 2023 preemption law, does not specifically cover short-term rental regulation. Cities retain full authority to license, restrict, cap, and ban short-term rentals. Austin requires a Type 2 operating license and is implementing platform enforcement starting July 1, 2026. Houston adopted citywide STR regulations effective January 1, 2026. Dallas is actively litigating its STR restrictions before the Texas Supreme Court. If you are buying in Texas on the belief that state law protects your right to operate, consult a Texas real estate attorney first.

The HOA Wildcard

Of all the compliance obligations in this guide, HOA CC&Rs are the one most likely to stop an investor cold. More than 75 million Americans live in HOA-governed communities, and that concentration runs higher in the Sun Belt states where STR investment centers. Arizona, Florida, Indiana, and Texas all have above-average rates of HOA-governed housing.

Before you list a property in any state, pull the full CC&Rs and read them. Not the summary the seller’s agent mentioned. The actual recorded documents. Look for:

• Explicit prohibitions on “transient,” “short-term,” or “vacation” use
• Minimum lease duration requirements (30-day minimums effectively ban STRs)
• Business use restrictions that could be interpreted to cover rental income
• Amendment provisions showing how easily the board can add new rental restrictions

Indiana’s HEA 1210 provides some protection here by limiting who can vote on new restrictions to homestead occupants. But in Arizona, Florida, and most other states, the HOA board’s authority to amend CC&Rs is governed by association bylaws, not preemption law.

The 8-Step Pre-Listing Compliance Audit

Before listing any property in a preemption state, walk through this checklist. I have watched investors lose months and thousands of dollars by assuming preemption meant they could skip compliance homework.

1. Read your CC&Rs in full. Confirm short-term rental activity is not prohibited by existing covenants.
2. Contact the county health department. Ask about pool, hot tub, septic, and water quality inspection requirements for rental properties.
3. Verify fire code compliance. Smoke alarms in every sleeping room and on every level. CO detectors on floors with fuel-burning appliances. Fire extinguishers accessible. Escape ladders where required.
4. Confirm occupancy limits. IBC standards set maximum occupancy by bedroom count and square footage. Do not advertise beyond what the code allows.
5. Review local noise ordinances. Know the quiet hours, decibel limits, and complaint process. Set guest expectations in your house rules.
6. Check parking requirements. Confirm available off-street parking and any permit zone restrictions.
7. Verify state licensing. Florida requires a DBPR vacation rental license. Arizona municipalities may require a transaction privilege tax license. Check what your state and locality require.
8. Set a 90-day review calendar. Ordinances change. HOA boards hold meetings. Run your property through StaySTRA’s analyzer to benchmark your market’s regulatory risk profile, and revisit compliance quarterly.

We do our best to keep our regulatory guides accurate and up to date, but ordinances change and we are only human. Always verify current requirements directly with your local municipality before making business decisions.

Run Your Numbers Before You Buy

Preemption removes one layer of risk. It does not remove all of them. Before committing capital in any of these states, use the StaySTRA analyzer to evaluate your target market’s full regulatory risk profile, revenue benchmarks, and competitive landscape.

If your preemption-state investment requires DSCR financing, factor compliance costs into your debt service calculations. Fire safety upgrades, HOA dues, and licensing fees are operating expenses that affect your ratio.

If you have already hit a compliance wall, our guide to STR permit appeals covers the legal process for challenging enforcement actions.