How much does colocation cost in Seattle?
Recent quotes we received for Oregon & Washington ran $345 to $395 per kW per month for up to 500 kW, falling to $220 to $260 above 1 MW. CBRE's published asking band for Seattle is $155 to $175 per kW per month for 250 kW and up.
| Deployment | Monthly rate | Source |
|---|---|---|
| Up to 500 kW | $345 to $395/kW-mo | Our quotes |
| Over 500 kW to 1 MW | $280 to $320/kW-mo | Our quotes |
| Over 1 MW | $220 to $260/kW-mo | Our quotes |
| 250 kW and up, asking rent | $155 to $175/kW-mo | CBRE, North America Data Center Trends H1 2026, first half of 2026 |
Smaller deployments cost more per kW. These are recent quotes we received, not a statement that space is available. Cross-connects, remote hands and one-time setup are extra. Operators often give 2–3 free months on a new term. See every region's quote ranges.
Seattle cabinet and cage prices
Smaller deployments are priced per cabinet or per cage rather than per kW. Use these monthly ranges to set a first-pass budget. They are not provider offers, and a building on this page is not a claim that space is available in it.
| Requirement | Monthly range | Power and bandwidth assumed |
|---|---|---|
| 1 to 2U | $145 to $270/mo | 1 to 3 A at 120 V, 1 to 5 TB of transfer |
| Half cabinet, 24U | $860 to $1,435/mo | 2 to 3 kW, 100 Mbps to 1 Gbps |
| Full cabinet, 48U | $1,200 to $1,450/mo | 2 to 5 kW, 100 Mbps to 1 Gbps |
| High-density cabinet, 48U | $2,410 to $4,740/mo | 10 to 17 kW, three-phase |
| Private cage, 4 racks | $4,970 to $5,770/mo | 5 kW per rack, 1 Gbps |
| High-density private cage, 4 racks | $14,565 to $21,500/mo | 20 kW per rack, 1 Gbps |
Based on quotes we received in the 30 days before 21 October 2026. Taxes, cross-connects, remote hands and one-time costs are extra. Replace these ranges with a normalized written quote before approval. How power is billed is covered in how colocation power is billed.
Get Seattle colocation prices for your setup
Tell us the racks, power and timing you need. A scout comes back with matching Seattle options and quoted prices.
What providers in Seattle post as a list price
Most colocation in Seattle is quoted, not posted. The provider below is the exception: it publishes a monthly price on its own website, and every row links to that page. It is a smaller regional operator. The large operators here do not publish prices at all, so read these as a floor and a sanity check, not as what an enterprise contract lands at.
| Monthly | Provider | Offer | Power included | Per usable kW | Bandwidth |
|---|---|---|---|---|---|
| From $925 | Fiberhub | Full cabinet, 42U. Westin Building Exchange, Seattle | Quoted separately | Power not stated | 200 Mbps |
Each price was read on the provider's own page on the date shown. Usable kW is 80% of the circuit rating, with a redundant A+B pair counted once, and is only worked out where the provider states both amps and volts. "From" is the provider's own word for a starting price. Providers whose networks carry spam or abuse flags are left out whatever their price. A posted price is not availability, and bundles differ in bandwidth and power, so compare the whole row rather than the first column. How power is billed is covered in how colocation power is billed.
Send it over and a scout will tell you how it compares with these posted prices and with the published benchmarks for this market. There is no obligation.
Who is actually plugged in across Seattle and Puget Sound
A building existing and a building being connected are different facts, and only one of them decides whether your traffic can get where it needs to go cheaply. These figures come from PeeringDB, which the network operators themselves maintain, so every row below links to the building's own public entry.
| Measure | Figure | What it means |
|---|---|---|
| Buildings listed | 37 | Registered in PeeringDB across Seattle and Puget Sound, by 23 operators |
| Buildings with a network present | 34 | 3 carry no network presence, which usually means single tenant or simply unregistered |
| Network presences | 533 | Counted per building, so a carrier in three buildings counts three times |
| Internet exchange presences | 27 | Where you can reach many networks through one port instead of many cross-connects |
| Carrier presences | 24 | The physical transport choice you can buy without leaving the building |
| In the densest building | 44% | Digital Realty Seattle SEA10 holds 233 of the market's network presences |
The most connected buildings here
| Networks | Building | Operator | Exchanges | Carriers |
|---|---|---|---|---|
| 233 | Digital Realty Seattle SEA10 | Digital Realty | 5 | 9 |
| 114 | Equinix SE2/SE3 - Seattle | Equinix, Inc. | 5 | 4 |
| 23 | KOMO Plaza Seattle (Formerly Fisher Plaza) | GI Property Management | 2 | 1 |
| 20 | WowRack | Serverhosh Internet Service | 3 | 1 |
| 13 | Sabey Intergate East Building 4 | Sabey Data Centers | 3 | 2 |
| 11 | Digital Fortress (TUK) | Digital Fortress | 1 | 1 |
| 10 | H5 Data Centers Seattle | H5 Data Centers | 2 | 2 |
| 9 | Colocation Northwest - Seattle | IsoFusion / Colocation Northwest | 0 | 0 |
From PeeringDB, which is maintained by the network operators present in these buildings rather than by the landlords, which is what makes it worth more than a directory. Two limits. Entries are voluntary, so a building showing no networks may be single tenant or may simply never have registered. And a network being present says nothing about whether the building has space, power or a price for you: that is still a call.
Market profileWhy Seattle is a market at all
Seattle is an interconnection market, not a capacity market. The anchor is the Westin Building Exchange at 2001 Sixth Avenue. It is a 34 storey tower with more than 150 carriers, where trans-Pacific subsea routes meet North American networks. Digital Realty held half from 2006 and bought 49 percent more from Clise Properties in February 2020. Clise kept one percent, so Digital Realty is effectively the sole owner.
Our PeeringDB extract counts 27 interconnection buildings and 390 networks in the metro. Seattle proper holds 12 buildings and 303 networks. Tukwila holds 7 buildings.
It is not a hyperscale build market. Cheap power sits 150 miles east around Quincy and Moses Lake, on Columbia River hydro. Sabey publishes rates under five cents per kilowatt hour at East Wenatchee. We exclude that region from this market.
King, Pierce and Snohomish counties qualify for Washington's urban data center sales and use tax exemption, created in 2022 for counties above 800,000 people. A colocation tenant qualifies at 150 kW. No new certificates issue on or after 1 July 2028, and issuance is capped at six per year, first in time.
Every megawatt figure here is either capacity a builder says it delivered or power a builder asked a utility for. Neither is space you can lease. Nobody publishes contractible capacity in this metro.
What has been announced in Seattle and Puget Sound
Announcements are not filings. Nobody has to build what they announce, the figure is the one the developer chose to publish, and the date moves. They are here because megawatts are what a requirement is measured in, and because the size of what is coming changes who will take your call. Every figure below links to a published report that states it, and was checked against at least one other independent report before it was written down.
| Capacity | Operator | Project | What was announced |
|---|---|---|---|
| 249 MW | Equinix and Prologis | Three proposed data centers | Two sites in SoDo and one in Tukwila, frozen inside Seattle by the June 2026 moratorium. Requested service capacity, unresolved |
| 68 MW | Sabey Data Centers | Tukwila campus expansion | Request to Seattle City Light, formally withdrawn in late April 2026. Requested service capacity, withdrawn |
| 6 MW | Sabey Data Centers | SDC Seattle | Tier 3 critical power added to the campus Sabey markets as Seattle, which is physically in Tukwila. Delivered capacity |
Only one of these three rows is capacity that exists. Sabey's 6 MW is delivered and energized. The other two are requests made to a utility, and one of them has already been pulled. That is the honest state of this market: there is no announced campus, no groundbreaking and no published construction pipeline in the nine cities we cover. Do not add these figures together. The 249 MW and the 68 MW were components of a single 369 MW cluster of applications that Seattle City Light received and the City Council then froze, and none of it has produced a building.
Announced capacity is collected by hand from trade reporting and company statements, and each figure links to the report it came from. It is never added to a permit count: a permit is a document a jurisdiction issued, an announcement is a plan a company published. Neither is availability.
Announced capacity is collected by hand from trade reporting and company statements, and every figure links to the report it came from and was read in that report before it was written down. It is never added to the interconnection count above: one is a plan a company published, the other is a building a network registered itself into. Neither is availability.
Power is the whole story, and right now the answer is no
Seattle City Light is a municipal utility. More than 88 percent of its power is hydro, and its Skagit and Boundary projects total roughly 1,850 MW.
In 2025 and 2026, four companies asked City Light to serve five data centers totaling 369 MW, about a third of Seattle's average daily use. Officials logged more than 54,000 public messages. One unnamed applicant withdrew. Sabey pulled its 68 MW Tukwila request in late April. Equinix and Prologis remain with three projects, two in SoDo and one in Tukwila.
Ordinance 127447, signed 11 June 2026, bars applications to establish or expand data centers above 20 MVA inside Seattle for 365 days, with a possible six month extension. An existing facility may still expand by up to 20 MVA.
City Light's New Large Data Center Load Policy covers new or expanded service of 10 MVA or more. It means a cost based rate class, full infrastructure cost for the contract life, a queue with no service date, and mandatory peak curtailment. Rates rise 9.5 percent in both 2027 and 2028.
Bellevue and Redmond are Puget Sound Energy. Snohomish County PUD treats anything over 2.5 MW as a large load. Snohomish County adopted a six month moratorium for unincorporated areas on 24 June 2026, and Marysville followed in July. Tacoma is Tacoma Power. No large project is under construction anywhere in the metro.
Under SSB 5982 (February 2026), on site generation must meet the same clean electricity standards as utilities. Gas behind the meter is not an exit.
City Light's policy covers its whole service area, including parts of Burien, Tukwila, SeaTac, Shoreline, Lake Forest Park, Renton, Normandy Park and unincorporated King County. Crossing the Seattle city line fixes zoning, not power.
Where the market actually is, submarket by submarket
Downtown Seattle and the Denny Triangle
This is the carrier hotel core, anchored by the Westin Building Exchange at 2001 Sixth Avenue and the Equinix sites around it. You come here for cross connects, subsea routes to Asia and network choice, and you pay downtown economics for space that was never designed around modern rack densities.
SoDo, Georgetown and the Duwamish corridor
The industrial belt in the southernmost part of Seattle City Light territory, and where two of the three surviving proposals were aimed. It is also inside the city moratorium, and much of it is fill over former tidal flats that Washington DNR maps as high liquefaction susceptibility.
Tukwila industrial park
The densest concentration of operating colocation in the metro, with 18 data centers reported in a single industrial park off Tukwila International Boulevard and 17 of them publicly reporting 80 to 113 MW of combined maximum capacity. Tukwila has no data center legislation of its own.
Bellevue, Redmond and the Eastside
Puget Sound Energy territory rather than Seattle City Light, so the Seattle moratorium and the City Light large load policy both stop at the water. It is an enterprise and corporate edge market sitting next to the Microsoft campus, not a wholesale market, and no operator has published a large project here.
When this market is right, and when it is the wrong choice
- Right for network. Trans-Pacific routes, peering with 300 plus networks, low latency to Asia, or space in your carriers' building.
- Right for edge and DR. A few racks to a few hundred kilowatts in an already energized building, near Amazon and Microsoft.
- Tax helps mid sized tenants. 150 kW reaches the exemption in King, Pierce or Snohomish. No new certificates issue on or after 1 July 2028. ESSB 6231 removed replacement servers from 1 July 2026. Your refresh may not qualify.
- Wrong for scale on a schedule. 10 MVA or more of new City Light service means a queue with no date. Above 20 MVA, nothing can be filed inside Seattle until mid 2027.
- Wrong for cheap power. Central Washington runs roughly a third of the cost.
- Check seismic risk. The Seattle Fault runs under the city and Cascadia sits offshore. SoDo and the Duwamish sit on high liquefaction fill, which cracked in the 2001 Nisqually quake. Ask for the building's seismic design basis.
- Before you sign. Get it in writing that your load fits power already energized under an existing City Light agreement. Put curtailment terms and the facility's exemption certificate status in writing too. Confirm the actual city: Sabey's 54 MW SDC Seattle is in Tukwila.