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ADDRESS 1400 112th Ave SE Ste 100 Bellevue WA 98004
Mosler Lofts in Belltown, Seattle is a 12-story, 148-unit loft building at 2720 3rd Avenue, completed in 2007 and certified LEED Silver. It sits on the quieter north end of the neighborhood, and its open one-bedroom plans with exposed concrete and floor-to-ceiling windows draw a specific kind of buyer.
Most people who ask me about Mosler Lofts have already seen the photos. Ten-foot ceilings, exposed concrete, metal ducting, and walls of glass photograph well, and they are genuinely what the building looks like inside.
What the photos do not tell you is how the building lives. That is the part I can help with. I live and work in Belltown, at 2414 1st Ave, about a ten-minute walk from Mosler's front door.
This is what I tell clients before they tour it: what the building actually is, what it costs to live there, what the honest trade-offs are, and who it fits.
Mosler Lofts stands at the corner of 3rd Avenue and Clay Street, in the northern stretch of Belltown where the neighborhood starts to hand off to Lower Queen Anne and Seattle Center. It was developed by the Schuster Group and completed in 2007, in the middle of the condo boom that built most of Belltown's current inventory.
The building is steel and concrete, twelve stories, with 148 homes. It was certified LEED Silver, the first high-rise residential building in Seattle to earn that certification, and it was also built to the Built Green standard. It has collected several design and green-building awards since.
The unit mix skews heavily toward one-bedrooms. A Seattle Condo Review profile of the building breaks it down as 22 studios from roughly 428 to 712 square feet, 119 one-bedrooms from roughly 585 to 1,820 square feet, six two-bedrooms in the 1,378 to 1,561 square foot range, and a single three-bedroom near 1,991 square feet. Urban Ash lists the overall range as 498 to 2,398 square feet.
The point of those numbers is not precision. It is proportion. Roughly eight out of ten homes here are one-bedrooms, which shapes who your neighbors are and what your unit competes against when you sell.
A handful of homes break the pattern. There are two-story lofts with both interior and exterior entrances, ground-floor units that read as townhomes, and penthouses with large private decks. Those are the units people remember from a tour.
The interiors are the reason this building has a following. Ten-foot ceilings, exposed concrete walls, exposed metal ducting, hardwood floors, wood cabinetry, and stainless appliances. The plans are open rather than compartmentalized, which is what makes them lofts rather than conventional condos with high ceilings.
Light is the other half of it. Floor-to-ceiling windows carry a lot of daylight into a deep floor plan, and many homes look out at the Space Needle, Puget Sound, the Olympic Mountains, or Queen Anne Hill depending on which way they face.
Open plans come with a physics problem, and it is worth naming. Sound travels inside an open unit in a way it does not in a walled one. A dishwasher running is a household event. If you work from home next to someone who takes calls all day, tour with that in mind.
The other honest note is storage. Open loft designs traded closets and built-in cabinetry for volume, and a number of these homes are short on both. That is a solvable problem with millwork and furniture, but it is a real cost to plan for rather than discover after closing.
My guide to Belltown, Seattle housing types covers how lofts compare to conventional towers and the few townhomes at the neighborhood's edges. Mosler is the clearest local example of the loft category.
For a building of 148 units, the amenity package is broad. A staffed lobby with concierge service, a fitness center, a resident club and lounge, a library, a business center and conference room, a guest suite for visitors, controlled-access parking, and separate storage.
The rooftop is the amenity people actually use. It is a landscaped garden terrace with a gas fire pit, barbecues, and seating, and it does what a rooftop should do in a neighborhood where private outdoor space is scarce.
Dues at Mosler Lofts have historically covered water, sewer, garbage, central hot water, common-area maintenance, concierge staffing, earthquake insurance, the master insurance policy, and the amenities themselves. That is a fuller list than many Belltown buildings include, which is part of why the monthly number is what it is.
I say that carefully because dues figures move. Whatever a listing quotes, the number to trust is the one in the current resale certificate, alongside the reserve study and the last two years of association minutes. Earthquake and master insurance in particular have been repricing across Seattle condo associations, and that flows into dues.
The building has been managed by CWD Property Management. Professional management matters more than it sounds like it should. It usually means the documents you need at due diligence exist, are current, and arrive on time.
Parking is a genuine advantage here. Homes at Mosler Lofts have generally come with one or two garage spaces plus a storage unit, which is not a given in Belltown. Confirm in writing what conveys with your specific unit rather than assuming the building standard applies.
Location is the quiet argument for this building. Mosler Lofts sits at the north end of Belltown, several blocks up from the 1st and 2nd Avenue nightlife corridors that generate most of the neighborhood's noise complaints.
That does not make it a suburb. It makes it a block where a weeknight sounds like a city rather than a bar close. If nightlife exposure is your main worry about Belltown, the north end is the part of the neighborhood to look at first.
What is within reach on foot: the Olympic Sculpture Park and the Elliott Bay waterfront, Myrtle Edwards Park and the Elliott Bay Trail, Seattle Center and the Space Needle, and the restaurant and coffee density that Belltown is known for. Bell Street Park runs through the core, and Regrade Park serves as the neighborhood dog park.
Transit is straightforward. 3rd Avenue is Seattle's downtown bus spine and it runs directly past the building, which makes downtown and South Lake Union commutes simple. Westlake light rail station is about a ten-minute walk from most of Belltown. For drivers, I-5 and Highway 99 are both close.
The honest gap is groceries. Central Belltown has long lacked a full-service grocery store, and residents solve it with stores toward South Lake Union and the downtown edges, or with delivery. It is the most common complaint I hear from people who have lived here a year.
My complete Belltown, Seattle neighborhood guide covers the neighborhood in full, and my guide to moving to Belltown, Seattle covers the adjustment for people arriving from somewhere less dense.
No building is only its amenity list. These are the items I raise with clients before they get attached to a unit, and none of them is a reason to walk away on its own.
The first is helicopter noise. Mosler sits near television station facilities whose news helicopters land and take off through the day. North-facing homes hear it most. It is intermittent rather than constant, and some residents stop noticing it. Others do not, which is why I suggest a second visit at a different hour before you write an offer.
The second is the rental cap. Mosler Lofts has operated with a cap on the share of units that can be rented, and when a cap like that is full, a waitlist follows. Buildings also commonly require an owner to rejoin the bottom of that list when one tenant moves out and another moves in. If you are buying here to rent it out, that policy is the first thing to verify, well before finishes or views.
The third is construction history. Like a number of buildings from that era, the association pursued construction warranty claims against the developer, and that matter was resolved with a substantial award to the association followed by repair work. That is more than a decade in the past now. The current condition of the building, what has been repaired, and how the reserves stand today are questions for the present-day resale certificate, reserve study, and minutes, not for an old write-up.
None of this is unusual for a well-built 2007 Belltown condo. What matters is that you read the documents rather than the marketing. My guide to Seattle short-term rental rules for Belltown investors covers the rental layer, both the city licensing rules and the association restrictions that sit on top of them.
If Mosler is on your list, send me the unit numbers you are watching. I will tell you what I know about the exposure, the floor, and the plan before you spend a Saturday on tours. You can also browse current Belltown, Seattle condos for sale to see what is available right now.
Pricing at Mosler Lofts is a function of floor, orientation, plan type, and whether the view is protected. A one-bedroom on a low floor facing an adjacent building and a one-bedroom ten floors up facing the Sound are not the same asset, even at identical square footage.
For neighborhood context, Redfin's Belltown housing market data for the three months ending May 2026 put the median sale price at $550,000, up 9.4 percent year over year, with homes selling in a median of 23 days. A realtor.com condo snapshot in July 2026 showed a median listing price of $529,000 across 147 active listings.
Citywide, the picture has been softer. Seattlecondosandlofts.com reported in February 2026 that Seattle's traditional-condo median was $445,000 in January 2026, down 12.9 percent year over year. Belltown ran above the citywide median and stayed positive across that stretch, so the neighborhood has not been tracking the city.
Use those figures as background, not as a value for a specific unit. Inside a building like this one, the meaningful comparison set is other recent sales at Mosler Lofts, then the towers immediately around it, and only then the neighborhood. My Belltown, Seattle condo market report tracks current prices and inventory, and my guide to what a Belltown condo is worth walks through how value gets built here.
One more variable belongs in the math. Dues, parking, and storage are part of the monthly cost of ownership, and they differ enough between Belltown buildings to change which unit is actually the better buy. Two homes at the same price are rarely the same commitment.
After enough tours, patterns show up. Mosler Lofts tends to suit people who want design character more than square footage. They want volume, light, concrete, and a plan that feels like a space rather than a set of rooms, and they are not cross-shopping it against a conventional tower unit.
It suits people who work downtown or in South Lake Union and want a short, reliable commute. The 3rd Avenue bus spine at the door does most of that work.
It suits residents who want a quieter Belltown address without leaving Belltown. The north end delivers that in a way the 1st and 2nd Avenue blocks cannot.
It suits people who will use the building. Concierge, guest suite, fitness center, and roof deck are worth paying for if they are part of your week. If you would rather have lower dues and fewer shared spaces, a smaller mid-rise is a better fit.
It is a harder fit in three cases. Investors face the rental cap and the waitlist that comes with it. Households that need walls, quiet rooms, or generous closets are working against the design rather than with it. And anyone sensitive to intermittent overhead noise should tour a north-facing unit more than once before deciding.
If you are still weighing a condo against something with its own front door, my comparison of a condo versus a townhome in Belltown, Seattle works through that decision.
If you already own here, your building is your comparison set. A recent sale two floors above you with a similar orientation tells you more than any neighborhood median will.
Lofts also sell on different terms than tower units. A tower unit sells on view, floor, and amenities. A loft sells on volume, light, and character, and it sells to a narrower pool of buyers who want exactly that. Marketing a Mosler home as a generic one-bedroom condo is the most common way a good unit ends up sitting.
Preparation follows the same logic. Open plans photograph beautifully when they are edited down, and poorly when they are full. The storage constraint that makes daily life tighter also makes staging decisions matter more.
Document readiness is the other half. Buyers at a 2007 building with an amenity package and a repair history will read the resale certificate, the reserve study, and the minutes closely. Having those assembled before you list keeps a strong offer from stalling during the review period.
You can request a home valuation and we can go through it together, or read my guide to selling a condo in Belltown, Seattle for the full strategy, prep, and timing picture.
Mosler Lofts is at 2720 3rd Avenue, on the corner of 3rd Avenue and Clay Street in the northern part of Belltown. That puts it within walking distance of Seattle Center, the Olympic Sculpture Park, and the Elliott Bay waterfront, and directly on the 3rd Avenue bus corridor into downtown and South Lake Union.
The building has 148 homes across twelve stories. The mix is heavily one-bedroom, with a smaller number of studios, two-bedrooms, and a single three-bedroom. Reported sizes run from roughly 430 square feet at the small end to nearly 2,400 at the largest, including a few two-story lofts and penthouse homes with private decks.
By Belltown standards, the location is quiet. It sits several blocks north of the 1st and 2nd Avenue nightlife corridors that generate most of the neighborhood's noise. The building's own trade-offs are different: news helicopters from nearby stations affect north-facing homes, and open loft plans carry sound inside a unit.
Only within the association's limits. Mosler Lofts has operated with a cap on the number of units that can be rented, and when that cap is full a waitlist follows. Policies change, so verify the building's current rental rules and waitlist status in the association documents before you write an offer as an investor.
Dues have historically included water, sewer, garbage, central hot water, common-area maintenance, concierge staffing, earthquake insurance, the master insurance policy, and use of the amenities. That is broader than many Belltown buildings include. Confirm the current figure and inclusions in the resale certificate rather than relying on a listing description.
Generally yes, which sets it apart in a neighborhood where parking is scarce. Homes here have typically come with one or two spaces in the secure garage plus a separate storage unit. Because it varies by home, confirm in writing exactly what conveys with the specific unit you are considering.
Mosler Lofts is a building worth touring with someone who knows what to look for in the documents. If you are buying or selling in Belltown, reach out through my contact page or call (206) 251-9002.
Tell me which units you are watching. I will give you a straight read on each one, including the parts a listing description leaves out.
Chris Bierrum, Broker, Real Broker, LLC. 2414 1st Ave Apt 612, Seattle, WA 98121. (206) 251-9002.
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ADDRESS 1400 112th Ave SE Ste 100 Bellevue WA 98004