Portage Bay Real Estate Agent

Portage Bay market snapshot

Median Sale Price$1,150,000± 0.0% YoY

Price / Sq Ft$604▼ 1.0% YoY

Median Days on Market14▲ 16.7% YoY

Sale-to-List100.0%± 0.0% YoY

Over the trailing twelve months, the median Portage Bay home sold for about $1,150,000 — roughly flat year over year. Homes here typically went under contract in about 14 days at roughly 100.0% of list price (around $604/sq ft), reflecting a market easing from its peak toward balance. These rolling 12-month figures (NWMLS, June 2026) cover the broader market area around Portage Bay rather than Portage Bay on its own, so for any specific home it is worth comparing recent sales on that block.

About Portage Bay

Portage Bay is a small residential neighborhood on the southwestern shore of the bay of the same name, in central Seattle. The bay functions as the eastern arm of Lake Union and forms part of the Lake Washington Ship Canal, connecting eastward to Union Bay through the Montlake Cut. Interstate 5 and its Ship Canal Bridge mark the western edge, while State Route 520 crosses the southern portion on the Portage Bay Viaduct, and the University Bridge carries Eastlake Avenue over the bay's western section toward the University District.

The area is closely tied to the water. Along Fuhrman Avenue East and the surrounding shoreline sits one of the larger remaining floating-home communities in Seattle, positioned directly across the bay from the University of Washington campus.

Housing & homes

Portage Bay's inventory splits into two distinct property types. On land, you will find early- and mid-20th-century single-family houses on the hilly peninsula between Lake Union and Portage Bay, an area historically crossed by wooded canyons and ravines. Many of these homes sit on sloped lots with water and canal views.

On the water, the neighborhood is defined by floating homes and floating on-water residences moored along the shoreline. Floating homes are permanently moored dwellings connected to sewer and water utilities and built on cedar-log or concrete floats, which distinguishes them from houseboats that have a boat-style hull. These properties trade differently from conventional real estate, since a purchase typically involves the structure plus a moorage interest rather than a standard fee-simple lot.

Local conditions to know

The most significant current condition is the SR 520 Portage Bay Bridge and Roanoke Lid Project. WSDOT began major construction in November 2024 to replace the 1960s-era bridge with two new parallel structures and to build a landscaped lid between Roanoke Park and North Capitol Hill; the work includes in-water pile driving in Portage Bay and is expected to continue toward completion around 2031. Buyers and sellers near the corridor should account for an active, multi-year construction environment.

Shoreline and in-water regulation is the other defining factor. Floating residences fall under the Seattle Shoreline Master Program and Seattle Municipal Code 23.60A. Moorage location must comply with City marina rules, owners must notify the City within 60 days of moving a residence to a new parcel, marina, or slip, and short-term rentals under 30 days are prohibited in over-water locations. Because these are shoreline and floating-home properties, due diligence on moorage rights, utility connections, and lease or ownership structure is essential.

Getting around & local texture

Portage Bay sits minutes from South Lake Union, Eastlake, and the University District, yet remains a quiet, water-facing enclave. The bay hosts two yacht clubs, the Seattle Yacht Club and Queen City Yacht Club, and Fritz Hedges Waterway Park opened on the north shore in 2020 on the former site of a university police station. The University Bridge and Eastlake Avenue provide the main road connections west, with King County Metro bus service and the SR 520 Trail extension planned as part of the current bridge project.

The neighborhood carries a long history: it was named in 1913 for the portage once needed across the Montlake Isthmus to move logs before the Ship Canal was built, and Duwamish leader Cheshiahud and his family lived and carved canoes along its shores in the 1880s. Portage Bay is served by Seattle Public Schools; families should confirm current attendance-area assignments for a specific address using the district's official school-finder tool, as boundaries can change.

What buyers & sellers weigh in Portage Bay

Confirm whether a property is a floating home, a floating on-water residence, or a land-based house, since financing and closing differ sharply between them.
For floating homes, verify moorage rights and structure: whether you are buying the moorage, leasing a slip, or holding a co-op interest, plus monthly moorage costs.
Confirm sewer and water utility connections for any floating residence, as these are required and affect compliance.
Factor in the active SR 520 Portage Bay Bridge construction through roughly 2031, including in-water work near the shoreline.
Review Shoreline Master Program and SMC 23.60A rules before making changes to any over-water property.
Note that short-term rentals under 30 days are prohibited in over-water locations if rental income was part of your plan.

What makes Portage Bay distinct

One of Seattle's larger surviving floating-home communities, moored along Fuhrman Avenue East directly across from the University of Washington.
A water body that is simultaneously the eastern arm of Lake Union and part of the Lake Washington Ship Canal, linked to Union Bay by the Montlake Cut.
A property market with two very different segments, land-based single-family homes and regulated floating residences, in one small neighborhood.
A multi-year SR 520 bridge replacement and new Roanoke lid reshaping the neighborhood's southern edge.
A quiet, water-focused pocket that is still minutes from South Lake Union, Eastlake, and the University District.

Services in Portage Bay

All services

Portage Bay real estate FAQ

What is the difference between a floating home and a houseboat in Portage Bay?

A floating home is a permanently moored dwelling built on a cedar-log or concrete float and connected to sewer and water utilities, and it must sit in an approved moorage. A houseboat has a boat-style hull. The City of Seattle regulates floating residences under Seattle Municipal Code 23.60A and the Shoreline Master Program, so the distinction affects what you can do with the property.

How does the SR 520 Portage Bay Bridge project affect the neighborhood?

WSDOT began major construction in November 2024 to replace the aging Portage Bay Bridge with two new parallel structures and build a landscaped lid between Roanoke Park and North Capitol Hill. The work includes in-water pile driving in Portage Bay and is expected to continue toward completion around 2031, so it is an active consideration for anyone buying or selling near the corridor.

Which school district serves Portage Bay?

Portage Bay is within the Seattle Public Schools district. Attendance areas are assigned by address and can change, so confirm the current assignment for a specific home using the district's official school-finder tool.