Two nearly identical bungalows sit a block apart near the Hill Country Mile. Same era, same square footage, same walk to Main Street. One can legally operate as a short-term rental tomorrow. The other cannot, no matter how much the buyer wants it to, no matter what the seller tells them about "grandfathered rights." The difference has nothing to do with the house. It has to do with what's already permitted on that specific block face, and whether the buyer knows to check before they write the offer.
That's the part most short-term rental guides skip. They'll tell you Boerne allows STRs. They'll quote the fee schedule. What they won't tell you is that the city's own compliance software recently found that most of what looks like an active rental market in Boerne isn't actually registered, and that a permit doesn't move with the house the way most buyers assume.
The 200-Foot Line Nobody Puts on the Listing
Boerne's Short-Term Rental Ordinance, adopted in 2023, covers any property rented for 30 days or fewer, inside city limits or the extraterritorial jurisdiction. Registration runs through the city's online portal, costs $200, requires proof of liability insurance and a safety inspection, and issues a permit good for two years before it has to be renewed.
None of that is the interesting part. The interesting part is where the ordinance draws its scarcity line, and it's narrower than most buyers expect.
In areas zoned residential, an STR cannot operate within 200 feet of another STR on the same block face. That rule specifically applies to residential-zoned parcels inside the city's Historic, Downtown, and River Road overlay districts, the exact area where most buyers picture a walkable Boerne rental doing well. But flip to a commercially-zoned parcel inside those same overlay boundaries, and the separation requirement disappears entirely. No 200-foot math, no waiting for a neighbor's permit to lapse. Outside the overlays, commercial zoning goes the other direction: STRs aren't permitted there at all.
So the real constraint isn't "does Boerne allow short-term rentals." It's "what is this specific parcel zoned, and does that zoning sit inside or outside a district boundary that most people can't see from the street." Two houses on the same block can land on opposite sides of that line.
| Zoning situation | Separation rule | What it means for a buyer |
|---|---|---|
| Residential, inside Historic/Downtown/River Road overlay | 200 feet from another STR on the same block face | Permit availability depends on what's already licensed nearby, not on anything visible in the MLS listing |
| Commercial, inside Historic/Downtown/River Road overlay | None | No cap, but the parcel needs to actually carry that zoning designation |
| Commercial, outside the overlay districts | STRs prohibited | Even a beautifully located commercial building may be off the table entirely |
A property that doesn't fit its zoning's separation rule isn't automatically dead. Owners can apply to the Zoning Board of Adjustment for a special exception. But that's a hearing, not a guarantee, and it's a step a buyer should plan for before closing, not discover after.
What Happens If the House Already Has Airbnb Reviews
Here's where the transaction risk actually lives. Say the seller's disclosure shows the house has operated as a licensed STR for years, with reviews to prove it. A buyer might assume that history transfers with the deed. It doesn't, automatically.
The ordinance gives a new owner a Right of Reservation, a 90-day window from the date of the ownership change to apply and reserve continuity of that existing permit. Miss it, and the permit doesn't just lapse quietly. It can't be transferred to another location, and if a neighbor's competing STR now sits within the 200-foot radius, the new owner may find they can't get a fresh permit at all, even though the exact same house was operating legally the week before closing.
Permits also expire two years from their effective date and must be renewed within 30 days of that expiration, with another $200 fee. A buyer inheriting a permit that's close to its renewal date inherits that clock too. If the renewal lapses past the grace window, the property may have to reapply from scratch, which puts it right back into the same separation-distance math as a brand-new application.
As Assistant City Manager Kristy Stark put it when the council finalized the ordinance, the goal was to balance the safe operation of short-term rentals with preserving the city's charm and community feel. That balance is exactly why the rules protect existing operators through grandfathering rather than a blanket cap, and exactly why that protection is personal to the permit holder, not automatic for whoever buys the house next.
The Gap Between What's Advertised and What's Actually Legal
This is the part that should change how a buyer reads a seller's rental income history. In October 2025, city planning and code staff told the Boerne City Council that a new compliance platform, built on Granicus software launched that summer, had scanned listing sites and identified 214 short-term rental listings across the city limits and ETJ. Of those, only 51 were both registered with the city and actively advertising. Another 48 were advertising without being registered at all. The remaining 115 appeared inactive. Staff estimated that roughly 99 STR units were actually operating at the time.
Run the math on that and the takeaway is blunt. Fewer than a quarter of the listings the software found were confirmed as both legal and live. A property's Airbnb history, its review count, even its nightly rate history, tells a buyer nothing about whether that income was ever generated by a properly registered operation. The city has already started sending compliance letters to unregistered operators, and the ordinance gives it room to pursue enforcement if operators don't come into compliance on the city's timeline.
For a buyer running numbers on projected rental income, that gap is the single most important thing to verify before it factors into an offer. A listing history built on an unregistered operation isn't a foundation. It's a liability the current owner hasn't dealt with yet.
Third-party short-term rental analytics have put Boerne's typical host earnings at just under $30,000 a year, with average daily rates around $178 and occupancy a little over half the year. Numbers like that only mean something if the operation generating them is legally allowed to keep running. An enforcement letter doesn't care what the trailing twelve months looked like.
What to Actually Check Before Writing an Offer
- Pull the property's zoning designation and confirm whether it sits inside the Historic, Downtown, or River Road overlay boundaries, not just whether it's "close to downtown."
- If it's residential and inside an overlay, ask the planning department how many licensed STRs already sit within 200 feet on the same block face before assuming a new permit is available.
- Verify the property's actual registration status through the city's STR portal rather than relying on platform reviews or a seller's claim of an active listing.
- If buying an already-operating STR, mark the 90-day Right of Reservation clock from the closing date on your calendar and file immediately. Don't wait to see how move-in goes first.
- Check the current permit's expiration date. A renewal falling due soon after closing means planning for that cost and timeline as part of the purchase, not after the fact.
None of these steps require a lawyer to complete, but skipping any one of them can turn a rental property into a house that simply can't do what the buyer bought it to do.
Frequently Asked Questions
Does a Boerne short-term rental permit transfer automatically when a property sells? No. A new owner has 90 days from the change in ownership to apply for the Right of Reservation to keep continuity with the existing permit. The permit cannot be moved to a different address.
Are short-term rentals capped citywide in Boerne? Not exactly. There's no blanket citywide limit. The 200-foot separation rule only applies to residentially-zoned parcels inside the Historic, Downtown, and River Road overlay districts. Commercially-zoned parcels in those same overlays have no separation requirement.
Can an HOA block a short-term rental even if the city approves it? Yes. The city has been clear that meeting its ordinance requirements doesn't override a homeowners association's own rules, and the city doesn't enforce HOA restrictions.
What happens if a property is operating as an STR without being registered? The city has been actively identifying unregistered listings through its compliance software and sending notices to bring operators into compliance, with administrative enforcement available if that doesn't happen.
Boerne's rental market rewards buyers who read the zoning map before they read the reviews. If you're evaluating a specific property for short-term rental potential anywhere in Boerne or the surrounding Hill Country, our team at Option One Real Estate can help you check the boundaries, the permit history, and the math before you're locked into a contract. Contact Us and let's look at the address together.
