What Belltown, Seattle condos rent for has two published answers, and the distance between them is the useful part. Zillow's rent index put the typical rental in ZIP code 98121 at $2,700 a month in July 2026. The Census Bureau puts the same ZIP's median gross rent at $2,337. Both figures are real and both are sourced. Neither one is measuring a condo like yours, and this piece is about why that matters and what to do instead.
Owners ask me this question in two situations. Either they already own a unit here and are deciding whether to rent it out rather than sell, or they are considering a purchase and need an income number before they can model anything. In both cases the instinct is to look up a neighborhood average, and in both cases the neighborhood average quietly answers a different question than the one being asked.
So here are the actual published numbers, with sources and dates, followed by the specific reasons they run high or low against a condo, and the method I use to replace them with something you can underwrite.
There are exactly two sources I consider worth citing on what Belltown, Seattle condos rent for. Both publish their methodology, both cover ZIP code 98121, and both are free to check. Listing-site neighborhood averages are a third category, and I leave them alone for reasons I explain in my guide to Belltown condo investment and rental cash flow.
The first is the Zillow Observed Rent Index, a smoothed monthly series covering single-family, condo and multifamily rentals in a given ZIP. For 98121 it reads $2,700 in July 2026, the most recent month published. A year earlier, July 2025, it read $2,768. That is a decline of 2.5 percent over the year.
The second is the American Community Survey, the Census Bureau's five-year rolling estimate. Its 2020 to 2024 release puts the median gross rent in ZIP 98121 at $2,337, with a margin of error of $96. Gross rent in that table means contract rent plus the renter's estimated utility costs, so it is not the same measurement as an asking rent and the two numbers should not be subtracted from each other.
ZIP 98121 is a close match for Belltown. It covers the neighborhood and the adjacent waterfront edge, and it is the ZIP my own address sits in. It is the tightest published geography available for this question, which is precisely why both of its numbers deserve to be read carefully rather than quoted flatly.
A single month tells you very little. The index history is more informative, and it is available back to January 2015 for this ZIP.
Month | Zillow rent index, ZIP 98121 | Note |
|---|---|---|
January 2015 | $2,002 | Start of the published series |
January 2020 | $2,541 | Pre-pandemic level |
January 2021 | $2,102 | Down 17.3 percent in twelve months |
September 2025 | $2,807 | Highest month in the series |
March 2026 | $2,680 | Recent low |
July 2026 | $2,700 | Most recent published month |
Source: Zillow Observed Rent Index, ZIP code 98121, smoothed series covering single-family, condo and multifamily rentals, retrieved September 8, 2026.
Three things stand out. The eleven-year move from $2,002 to $2,709 in January 2026 is about 35 percent, which is a good deal slower than what sale prices did over the same stretch. The 2020 to 2021 drop was steep and specific to downtown-adjacent Seattle. And the last twelve months have been mildly negative rather than flat, with the index peaking in September 2025 and sitting below that level every month since.
I am describing what the series has done, not what it will do next. If you want the sale-price side of the same neighborhood, my five-year review of Belltown home values covers it with the same sourcing discipline.
The by-bedroom question is the one owners actually want answered, and here the Census table is the better instrument. It reports median gross rent separately for studios, one-bedrooms and larger units within the ZIP.
Unit type | Median gross rent, ZIP 98121 | Margin of error | Share of ZIP housing stock |
|---|---|---|---|
Studio | $1,887 | plus or minus $128 | 32.5 percent |
One bedroom | $2,422 | plus or minus $142 | 38.3 percent |
Two bedroom | Not resolvable, at or above $3,501 | Not published | 26.1 percent |
Three or more bedrooms | Estimate too imprecise to cite | plus or minus $1,225 | 3.1 percent |
Source: U.S. Census Bureau, American Community Survey 2020 to 2024 five-year estimates, tables B25031 and B25041, ZIP Code Tabulation Area 98121, retrieved September 8, 2026.
The stock column is worth pausing on. Studios, one-bedrooms and two-bedrooms together make up 96.9 percent of the housing units in this ZIP. Three-bedroom-and-larger units are 3.1 percent of the total, which is why the estimate for them carries a margin of error wider than most of the rent itself. If you own a large unit here, no public dataset can price it, and you should stop looking for one.
The two-bedroom row above says "at or above $3,501" rather than giving a figure, and the reason is a detail worth knowing before you find it somewhere else stated as fact.
The Census table for median gross rent is top-coded. Its highest category is $3,500 or more, so when a geography's true median lands above that ceiling, the published estimate reads exactly $3,501 and no margin of error is calculated. It is a boundary marker, not a measurement.
You can confirm this by checking other places. ZIP 98121 reports $3,501 for two-bedrooms. So does 98101 next door, and so do Medina, Beverly Hills, Palo Alto and San Francisco's Financial District. Those markets do not have identical two-bedroom rents. They have all run past the same ceiling.
What that leaves you with is a real finding stated correctly. The median two-bedroom in Belltown rents above $3,500 including utilities, and the federal survey cannot tell you how far above. Anyone who quotes you $3,501 as the Belltown two-bedroom rent is repeating the edge of a table.
This is the substantive reason to be careful with everything above, and it is a structural feature of this particular neighborhood rather than a general caution.
Start with tenure. Of 14,288 occupied housing units in ZIP 98121, 11,055 are renter-occupied and 3,233 are owner-occupied. That is 77.4 percent renters. Any ZIP-wide rent number is therefore dominated by professionally managed apartment inventory, because that is what most of the rental housing here is.
Then look at when it was built. Of 16,684 total housing units in the ZIP, 6,060 were built between 2010 and 2019 and another 459 in 2020 or later. That 2010s wave is the modern apartment tower construction along Second Avenue and the Denny Triangle edge. Belltown's condominium stock is a different vintage: the 1990s and 2000s condo boom towers and the 2000s loft conversions, which is 5,515 units across those two decades.
So the ZIP index blends a large body of newer purpose-built rental apartments with a smaller body of older individually owned condos. A 2016 apartment with in-unit laundry, a fitness floor and a leasing office is not competing for the same tenant as a 1999 condo one-bedroom with a deeded parking stall, and the two do not rent for the same amount. The blended figure sits somewhere between them and describes neither.
The building-size data points the same way. Of the ZIP's 16,684 units, 14,317 sit in buildings of 50 or more units and another 1,563 in buildings of 20 to 49. Only 319 are single detached houses. This is a vertical neighborhood, and I cover the physical stock in more detail in my guide to Belltown housing types.
One comparison the ZIP-level data does support cleanly is Belltown against the city, because both come from the same index on the same basis.
In July 2026 the Zillow rent index read $2,700 for ZIP 98121 and $2,238 for the city of Seattle as a whole. Belltown carries a premium of $462 a month, or about 20.6 percent above the citywide figure.
The trajectories differ too. Citywide the index was essentially flat year over year, up 0.1 percent from $2,235 in July 2025. Belltown was down 2.5 percent over the same period. The premium is still substantial, and it narrowed slightly over the last year.
That premium is what you are buying into as a landlord here, and it is also what you are exposed to. A downtown-core ZIP moves with downtown employment and downtown sentiment in a way that a neighborhood like Wallingford does not, which the 2020 to 2021 drop in the table above illustrates plainly.
If you are weighing whether to hold a unit as a rental or list it, the market side of that decision is in my Belltown condo market report, and I am happy to run both scenarios on your specific unit. Send me the address and I will pull the building's rental history alongside its sale comps.
Gross rent is the number people quote. It is not the number that reaches you, and in a condo the largest single deduction is usually not the one people expect.
Take the ZIP figure of $2,700 as a starting point purely as arithmetic. Homeowners association dues come out of it before anything else does, and they are set by the association rather than negotiated by you. Every additional $100 a month in dues removes $1,200 a year from net operating income, and rent does not rise to offset it. Tenants pay for location, light, layout and parking. They do not reliably pay a premium equal to the cost of a concierge desk.
Dues vary widely across Belltown buildings, which is why I will not put a representative figure here. Amenity-heavy towers with staffed lobbies and full facility floors sit at one end, and the older mid-rises and loft conversions with lighter amenity loads sit at the other. My guide to Belltown condo HOA dues covers what the dues typically include and how to read a budget behind the number.
After dues, the remaining deductions are property taxes, insurance, a vacancy and turnover allowance, management if you use it, and your own reserve for the unit's interior. Parking is a variable that cuts both ways in this neighborhood: a deeded stall is a genuine rent premium here, and its absence is a genuine discount. My guide to parking in Belltown condos covers how the arrangements differ by building.
Two rules sit on top of the arithmetic and can override it entirely. Many Belltown buildings cap the number of units that may be rented at once and run a waitlist after the cap fills. Separately, if your plan involves short-term rental income, the city rules and the building rules are two different layers and both apply, which I cover in my Belltown investor's guide to Seattle short-term rental rules. Both the rental cap language and the dues history appear in the resale certificate, so read it before you waive anything.
One statute shapes what a Belltown rental can earn over time, and it applies whether you rent out a unit you already own or buy one with a tenant in place.
Under RCW 59.18.710, Washington limits annual residential rent increases, and the Department of Commerce publishes the maximum each year. It is 9.683 percent for 2026 and 10 percent for 2027.
The statute exempts buildings whose first certificate of occupancy was issued twelve or fewer years before the notice date. That exemption is a live one for part of the newer apartment stock in this ZIP, since 6,519 units here were built in 2010 or later. It is not a live one for Belltown's condominiums, which concentrate in the 1990s and 2000s. If you own a Belltown condo, plan on the cap applying.
This also matters if you are buying a unit that already has a tenant. The cap continues to apply to that tenancy and a new owner does not get a reset, along with several other obligations that transfer at closing. I go through those in detail in my guide to selling a tenant-occupied condo in Belltown, Seattle.
Everything above is context. The number you can actually underwrite comes from the building, and it takes about an afternoon to assemble.
Gather three same-building data points. Recent signed leases in your building, which a property manager who already runs units there can usually describe. Active rental listings in the building right now, with the asking rent and how long each has been listed. And a rent opinion from a manager who works the building, which is normally free to obtain and is worth more than any index because it prices in the elevator wait, the noise exposure and what the dues cover.
Then adjust within the building for the things that move rent floor by floor. Orientation and view, since a protected water sightline is a real premium and a wall-facing unit is a real discount. Floor height. Whether parking is included. In-unit laundry. Whether the dues cover utilities you would otherwise bill separately.
Finally, sanity-check the result against the ZIP figures. If your building comps land far from $2,700 for a one-bedroom, that is not necessarily wrong, but you should be able to say why in one sentence. Usually the answer is vintage, amenity load or parking, and if you cannot name the reason, one of your three data points is probably an outlier.
Vacancy deserves a line of its own. Derived from the same Census release, roughly 9.7 percent of this ZIP's rental units were vacant and on the market across the 2020 to 2024 window. That is a five-year average covering an unusual stretch rather than a current reading, but it is a reminder that carrying costs during a turnover month are part of the model, not a rounding error.
If you own a unit here and are deciding between renting it and listing it, or you are evaluating a purchase and need a defensible income number, that is a conversation worth having with real building comps in front of us rather than a neighborhood average. Reach out with the building name and I will assemble the rent comps, read the rental-cap language in the resale certificate, and give you a range you can actually model against. You can also browse what is currently for sale on my Belltown listings page.
The Zillow Observed Rent Index for ZIP code 98121 read $2,700 a month in July 2026, and the Census Bureau's 2020 to 2024 five-year median gross rent for the same ZIP is $2,337. Those cover all rental housing in the ZIP, which is predominantly apartments rather than condominiums, so treat both as a frame rather than as a condo-specific figure.
The Census five-year estimate puts the median gross rent for a one-bedroom in ZIP 98121 at $2,422, with a margin of error of $142. Gross rent includes the renter's estimated utility costs. A studio is $1,887 in the same table. Both figures blend apartments and condos.
The Census table is top-coded at $3,500 or more, so any geography whose true median exceeds that ceiling is published as exactly $3,501 with no margin of error. ZIP 98121 hits that ceiling, as do Medina, Palo Alto and Beverly Hills. The correct reading is that the median two-bedroom here rents above $3,500 including utilities, with no public figure for how far above.
Yes. In July 2026 the same index read $2,700 for ZIP 98121 and $2,238 for the city of Seattle overall, a premium of $462 a month or about 20.6 percent. Over the prior twelve months the citywide figure was up 0.1 percent while ZIP 98121 was down 2.5 percent.
Use same-building evidence rather than a neighborhood average: recent signed leases in your building, current active rental listings there, and a rent opinion from a property manager who already runs units in the building. Then adjust within the building for view, floor, parking, in-unit laundry and what the dues cover. Three same-building data points beat any ZIP-level index.
It can restrict it. Many Belltown buildings cap how many units may be rented at one time and maintain a waitlist once the cap is reached, and some set minimum lease terms or require board notification. The cap language lives in the building's governing documents and is disclosed in the resale certificate, so review it before waiving contingencies.
Rent figures in this article were retrieved on September 8, 2026 from the Zillow Observed Rent Index for ZIP code 98121 and the city of Seattle, and from U.S. Census Bureau American Community Survey 2020 to 2024 five-year estimates for ZIP Code Tabulation Area 98121, tables B25003, B25004, B25024, B25031, B25034, B25041 and B25064. Market data changes. This is general information about published data sources and is not investment, tax or legal advice.