Buying a Friday Harbor Rental in 2026: Size This Year, Not a Blend

Jacob Mishalanie
5 days ago
10 min read

Friday Harbor, WA from the water 08 (20615497256), Friday Harbor Washington photograph

Buying a short-term rental in Friday Harbor means underwriting a specific year's data, on this specific island, at this specific moment in its permit story — not importing a blended San Juan Islands corridor figure from some regional report and assuming it applies to whatever address is on the listing sheet. This market currently sits at a genuine fork in its aggregator data, and a buyer who resolves that fork by quietly picking the more flattering number is underwriting a fiction, not a property.

This post walks through the underwriting discipline this specific market requires — reading the WATCH range honestly, pricing entry cost from real comparables rather than a guess, and treating the permit question as a closing contingency rather than an afterthought. None of it is complicated math. It's mostly a matter of refusing the shortcuts a more casual buyer might take. This is not legal advice.

Start With the WATCH Range, Not a Single Figure

AirROI's extract, covering roughly August 2025 through July 2026 across 240 active listings, puts typical annual revenue at $44,601, with 39.3% occupancy and a $450 average daily rate — just under this site's $45,000 opportunity threshold. A brief-cited Rabbu-line figure, from a narrower 97-listing sample dated late April 2026, puts revenue at $53,891. That's roughly a $9,000 gap between two live sources, and the honest underwriting move is to model both as real possibilities rather than average them into a comfortable middle number or default to whichever figure makes the deal pencil better.

San Juan Property Management holding roughly 80 of the 240 tracked listings is a useful data point for a buyer specifically: it signals a real, established local operator presence in this market, not a franchise rollup, which suggests a workable pool of professional management if a buyer wants that route, alongside plenty of room for an independent, owner-marketed listing to compete.

Two secondary figures from the same extract are worth folding into a buyer's model as well. Supply grew roughly 11.1% on that pull, meaning the competitive set a buyer is measuring against today will look meaningfully different, and larger, within a year or two of closing — a factor worth weighing against any assumption that current occupancy holds flat indefinitely. And typical booking lead time runs around 67 days, which has a direct cash-flow implication: a buyer modeling their first year's ramp-up should expect early bookings to trail the eventual steady-state pace, since a brand-new listing without review history is competing for those advance-booking guests against properties that already have a track record.

Entry Cost: Don't Guess

Any credible underwrite needs a current entry-cost figure — a Zillow Home Value Index read or, better, actual recent comparable sales for the specific property type and location under consideration. This post does not supply a median home value, and a buyer should not assume one; that number needs to be pulled at the time of underwriting, not inherited from an old market report or a general sense of "island real estate is expensive."

It's also worth saying plainly that gross yield can look thin here even at a genuinely strong $450 average daily rate, simply because island entry costs tend to run high relative to mainland comparables. A buyer should model that tension directly rather than assuming a strong ADR automatically translates into a strong yield against whatever the purchase price turns out to be.

This is a common trap in island and resort-town markets generally, not unique to Friday Harbor, but it's worth naming specifically because the strength of this market's ADR and its summer occupancy can make a buyer feel like the revenue side of the equation is settled and only the expense side needs modeling. In practice, both sides deserve equal scrutiny — a $450 ADR against a purchase price inflated by scarce island land and limited buildable listing stock can produce a lower cap rate than the same ADR would against a comparable mainland property, even though the top-line revenue figure looks stronger on paper.

The Permit Question Comes Before the Math

None of the revenue modeling above matters if the property can't legally operate as a short-term rental, and this is a market where that question is genuinely live. The Town of Friday Harbor has a moratorium on new transient rental permits in effect since December 10, 2025, continued after a February 2026 hearing. San Juan County, governing unincorporated parcels, is not currently accepting new vacation-rental applications outside a narrow provisional-use path, and caps total permits per island — San Juan Island's cap sits at 337 per the county's published figures. A parcel connected to the Town of Friday Harbor water system isn't eligible for a county permit at all, regardless of its map location relative to town limits.

This is not legal advice. A buyer needs to confirm, before closing, whether the specific property already carries a valid, transferable permit, and if not, what the actual path to obtaining one looks like given the current moratorium and application freeze — not assume that because it's zoned residentially or was listed as "turnkey STR," the permit question is settled.

It's also worth understanding that the county caps introduce a scarcity dynamic that cuts in favor of an already-permitted property, once a buyer has verified that permit is real and transferable. With San Juan Island's county-side cap sitting at 337 and the town separately running a moratorium on new permits, an existing, documented permit attached to a specific property is a genuinely scarce asset in this market right now — not a formality, but a real component of the property's value that should be reflected in how a buyer prices the deal relative to a comparable, unpermitted property they'd need to gamble on permitting after closing.

Wrong Buyer Profile for This Market Right Now

Someone hoping to file a neighboring town's numbers onto this property — importing an Anacortes or Eastsound revenue figure because it's more favorable — is underwriting the wrong market entirely. So is someone skipping the Town of Friday Harbor / San Juan County permit question because a listing agent described the property as compliant without documentation. And so is a buyer who assumes the higher of the two WATCH figures simply because it makes the return math work; that's picking the pretty number, not underwriting the actual range.

A Worked Underwrite: Conservative Versus Optimistic Cases

The disciplined way to handle a genuine two-source WATCH range isn't to pick one figure — it's to run both as separate scenarios and see whether the deal survives the conservative one. A conservative case builds off AirROI's broader-sample $44,601 figure, since it's drawn from the larger 240-listing pool and represents a more statistically stable read of typical performance across a wide set of properties. An optimistic case builds off the narrower Rabbu-line $53,891 figure, treating it as a plausible upside if the specific property, once operating, performs at the level of the smaller, possibly higher-performing sample that figure was drawn from.

A property that only cash-flows acceptably under the optimistic case is a materially riskier purchase than one that clears an acceptable return even under the conservative case, with the optimistic case simply representing extra upside rather than the baseline the deal depends on. This is standard underwriting discipline in any market with data uncertainty, and it applies with particular force here given how far apart the two cited figures actually sit — nearly a $9,300 gap on an annual basis, which is a large enough swing to change whether a specific deal is a clear yes or a genuine maybe.

The same conservative-versus-optimistic framing should extend to the ramp-up period. A first-year buyer should model the conservative case's occupancy at something below even the 39.3% AirROI figure for the first several months, given the roughly 67-day booking lead time this market runs and the review-history disadvantage a brand-new listing carries against established competitors. Underwriting a deal that only works if year one performs like year three is a common way a genuinely sound long-term investment gets mistaken for a bad one during its first, harder season.

Due Diligence Checklist Before Making an Offer

Beyond the standard real estate due diligence any buyer would run, a Friday Harbor short-term rental purchase specifically needs a handful of checks most conventional home-buying checklists don't include. Confirm, in writing from the relevant desk, whether the specific parcel sits inside Town of Friday Harbor limits or unincorporated San Juan County — that answer determines which permit process, and eventually which lodging-tax remittance path, applies. Getting that confirmation in writing, rather than relying on a verbal answer from a listing agent, gives a buyer something to point back to if a dispute over the property's status arises later. Confirm whether the parcel is connected to the Town of Friday Harbor water system, since that fact alone can rule out the county permit path entirely regardless of the parcel's location. If an existing permit is already in place, get documentation of its terms and confirm directly with the town or county whether and how it transfers to a new owner, rather than accepting a seller's or listing agent's verbal assurance.

On the numbers side, request the seller's actual trailing-twelve-month payout history if the property is already operating as a short-term rental, and treat that real performance data as more reliable than either aggregator figure for underwriting this specific asset. If the property isn't currently operating, build the conservative and optimistic scenarios described above rather than assuming either aggregator figure describes what this particular property, in this particular location within the market, will actually achieve. A seller unwilling to share trailing-twelve-month payout data for an already-operating listing is itself a signal worth taking seriously during negotiation.

If This Is a Second or Third San Juan Islands Property

A buyer who already owns a short-term rental elsewhere in the San Juan Islands — in Eastsound, for instance — needs to resist the temptation to underwrite a Friday Harbor purchase using their existing property's performance as a proxy. The two towns have different desks, different seasonal patterns, and different aggregator figures, and an owner's familiarity with one market's operations doesn't transfer cleanly to permit questions or revenue expectations in the other. What does transfer usefully is operational experience — guest communication systems, cleaning logistics, an understanding of how ferry access shapes calendar management generally — but the underlying numbers for this specific deal need to be built fresh from this market's own data, not inherited from a different island's spreadsheet.

A multi-property owner should also factor in how a second San Juan Islands listing changes their exposure to this cluster's shared risk factors — most notably, ferry capacity and reservation timing that affects guest access to every property across all these towns simultaneously, and a regional summer-peak, winter-trough calendar shape that means diversification across Friday Harbor, Eastsound, and elsewhere in the islands doesn't smooth seasonal cash flow the way diversifying across genuinely different regions of the country would. A second island property concentrates risk around a single access point and a single seasonal pattern rather than genuinely spreading it, which is worth naming honestly even when the deal otherwise pencils well on its own merits.

Frequently Asked Questions

Should I buy an Airbnb in Friday Harbor?

It's worth serious consideration if the numbers, permit path, and your own risk tolerance for a genuine WATCH-range market align. Revenue currently sits between $44,601 (broader-sample AirROI) and $53,891 (narrower-sample Rabbu-line) depending on source — model both, don't pick one, and confirm permit status before assuming any figure applies to your specific deal.

What's a realistic revenue estimate for a Friday Harbor short-term rental?

AirROI's broader-sample extract shows $44,601 typical annual revenue on 240 listings; a narrower 97-listing Rabbu-line source shows $53,891. Treat this as a range to underwrite against, not a single number, and build your own projection from comparable trailing-twelve-month data where possible.

Can I get a new short-term rental permit in Friday Harbor right now?

It's currently constrained. The Town of Friday Harbor has a moratorium on new transient-rental permits in effect since December 2025, and San Juan County isn't currently accepting new vacation-rental applications outside a narrow provisional-use path. Confirm current status directly with both desks before assuming a new permit is obtainable.

What's the entry cost to buy a rental property in Friday Harbor?

This post doesn't supply a specific median value — pull current ZHVI data or recent comparable sales for the actual property type and location at the time you're underwriting a deal, rather than relying on a general estimate.

Is gross yield strong on Friday Harbor short-term rentals?

Not necessarily, even with a healthy $450 average daily rate, because island entry costs can run high relative to the revenue potential. Model this tension directly against actual purchase price rather than assuming a strong ADR guarantees a strong yield.

Who manages most short-term rentals in this market?

San Juan Property Management holds roughly a third of the tracked active listings in AirROI's extract (about 80 of 240) — a real local operator presence, not a national-brand rollup, suggesting professional management is available but not dominant.

Can I use Anacortes or Eastsound revenue data to evaluate a Friday Harbor property?

No. Anacortes is a separate mainland market and Eastsound sits on a different island with its own data. Filing either town's numbers onto a Friday Harbor property misrepresents the actual deal you're underwriting.

Does an existing permit transfer to a new buyer?

The Town of Friday Harbor's guidance indicates existing, already-permitted transient rentals are not affected by the current moratorium, but transferability and any specific conditions should be confirmed directly with the town before closing, not assumed.

Are there caps on how many short-term rentals San Juan Island can have?

Yes. Per San Juan County's published figures, San Juan Island's cap sits at 337 total permitted vacation rentals, which is a relevant ceiling to understand when evaluating how much new supply this market can realistically absorb.

Should I finance a Friday Harbor rental purchase with a DSCR loan?

That's a lender-specific question outside this post's marketing scope — Crest & Cove doesn't underwrite or sell financing products. See this cluster's financing post for a host-read overview of what a DSCR or portfolio lender will typically ask for.

Work with Crest & Cove Creative

A buyer who averages $44,601 and $53,891 into a comfortable middle figure is underwriting a number nobody's actual market data supports. Name the failure mode the guest can check on the listing.

Once the property's permit path and revenue range are confirmed, a marketing audit shows how competitive the listing itself would actually be. Name the failure mode the guest can check on the listing. Send the live listing draft and the facts you can actually cite.

Reach out at crestcove.co or (256) 998-7502.