606Onni 606 · Bellevue

Independent project record

Downtown Bellevue · WA

Onni 606 — Three towers.One Bellevue block.Every change tracked.

A three-tower, mixed-use development under construction on the former Barnes & Noble block in Downtown Bellevue — described by local reporting as Washington State's largest construction project. This independent guide follows the public record and the work visible on the block.

Current phase · Verified Early excavation and soil characterization — shoring pending
Live camExplore towers
A 3D rendering of the three Onni 606 towers — two silvery glass residential towers and a wider office tower, all white-crowned, each rising to Bellevue's ~600 ft ceiling above a shared, landscaped podium.
  1. 3Towerson a shared podium
  2. ≈600ftMax heighteach tower
  3. 1,059Residences2022 approved baseline

Site now

The block, as it stands.

A live camera, machine-read activity and a dated project record — kept together so the planned skyline never gets confused with work on the ground.

Live106th Ave NE · Bellevue24/7 construction cameraWatch the early-grading phase across the cleared block.Open the camera
Current phase

Early excavation and soil characterization — shoring pending

Early grading remains the only issued excavation phase. Bellevue documented soil export on July 28, while perimeter shoring and the below-grade structure remain unissued. Ecology's August 13 contained-in determination sets handling and reporting conditions for a specific 21,250 tons of PCE-contaminated soil; it does not approve the cleanup plan or identify the earlier export as part of that stream.

Next gate

The next legal phase change requires the applicable shoring, full-grading and below-grade approvals. Beam-haul and pit-conveyor filings are supporting mobilization records, not proof that those gates have cleared.

Latest record

All updates
  1. Pit-conveyor and podium reviews advance without permit issuanceBellevue approved the Revision 1 electrical review for excavation-pit conveyor permit 26-117887-BG and the Revision 3 and Revision 4 utility reviews for podium permit 25-105052-BB. The podium's Revision 3 transportation line closed so review could continue under Revision 4. Both permits remain Pending; these discipline actions do not issue the conveyors, podium, shoring or below-grade structure.
  2. Ecology sets disposal conditions for 21,250 tons of PCE-affected soilAn August 13 contained-in determination establishes a controlled disposal and reporting pathway for a specific 21,250 tons of soil through April 30, 2027. The letter does not name a landfill, cover contaminated water or other excavation areas, approve the cleanup plan, or show that soil exported before the decision belonged to this stream.
  3. Long steel-beam haul and gas relocation enter the street-use recordTwo August 13 right-of-way applications cover deliveries of 64- to 96-foot steel beams and a 425-foot PSE gas-main relocation through the Onni parcel to the neighboring 601 108th Avenue NE building. The steel-haul review was approved August 21, but both permits remain Pending. Revision 15 of the shoring permit has cleared or drawn no concern from four disciplines while structural and geotechnical reviews remain in progress.

The project

A four-acre block, rebuilt at city scale.

Local reporting has described Onni 606 as Washington State's largest construction project. The public record shows why.

On a roughly four-acre block bounded by the NE 6th Street Grand Connection and NE 8th Street, Onni Group is building three towers — two residential and one office — joined by a shared above-grade podium. The project is widely known as Onni Bellevue or simply the 606 Bellevue towers. Acquired in 2019 for $116M, the former Barnes & Noble site at 606 106th Ave NE is being transformed into one of Downtown Bellevue's largest mixed-use blocks.

The June 2022 approval establishes 1,059 residences, 257 hotel rooms and 871,818 square feet of office. An April 2026 profile reports a larger program, but no amended city schedule in the records reviewed here reconciles those totals. The plan also includes a 15,000-square-foot public open space and a segment of Bellevue's Grand Connection. Early grading remains the only issued excavation phase. Bellevue documented soil export on July 28, while perimeter shoring and the below-grade structure remain unissued. Ecology's August 13 contained-in determination sets handling and reporting conditions for a specific 21,250 tons of PCE-contaminated soil; it does not approve the cleanup plan or identify the earlier export as part of that stream. The next legal phase change requires the applicable shoring, full-grading and below-grade approvals. Beam-haul and pit-conveyor filings are supporting mobilization records, not proof that those gates have cleared.

Developer
Onni Group
Architect
IBI Group (Toronto)
Landscape
LOCI (Vancouver)
Survey
Core Design
Civil
KPFF

Project dimensions

3
Towers
on a shared podium
≈600ft
Max height
each tower
1,059
Residences
2022 approved baseline
257
Hotel rooms
2022 approved: Tower 1
871,818sf
Office
2022 approved: Tower 3
1,712
Parking stalls
across five below-grade levels

The civic bargain

What the height gives back.

The headline figure of roughly 4,000 jobs is the city's SEPA estimate — it bundles the temporary construction workforce with the permanent positions the finished office, hotel and retail are expected to support, so it is a measure of activity the block will generate over its lifetime, not a single payroll. The same 2019 SEPA model used 1,289 homes, while the later 2022 approval lists 1,059; both versions concentrate substantial housing near the 2 Line. In exchange for building to the 600-foot ceiling, Onni dedicates a 15,000-square-foot plaza and a landscaped segment of the Grand Connection — public benefits intended to outlive the cranes.

≈4,000
Workers supported
office, hotel & retail (SEPA)
$116M
Land cost
≈4 acres, acquired 2019
≈5 yrs
Construction
April 2026 reported program; no current completion date
15,000sf
Public plaza
open space for the city

Explore

Dig into the details.

01

The Towers

Three ~600 ft towers, floor by floor — hotel, residences, office and daycare, with full specifications.

02

Skyline & height

How Onni 606 stacks up against the tallest buildings in Bellevue — all three towers hit the city's 600-ft ceiling.

  1. 03History of the blockThe 1961 John Danz Theatre, the Belle Lanes bowling alley turned bookstore, and the many lives of the buildings now demolished.
  2. 04LocationOn the western edge of Downtown Bellevue — steps from the Bellevue Collection, the Grand Connection and the 2 Line.
  3. 05The developerOnni Group — the Vancouver-based, family-run developer behind the project, building since 1965.
  4. 06Timeline & updatesFrom the 2019 land purchase through today's early work — milestones, phase cues and the latest project record.
  5. 07GalleryDated documentary milestones with provenance, evidence limits and links back to the construction record.
  6. 08FAQQuick answers: how tall, when it's done, how many homes, what was there before, and who's building it.