Data center profile · West Des Moines, Dallas County, Iowa (sites along White Crane Road, SW Kerry Street, Highway 5 and Booneville Road)

Microsoft West Des Moines cluster

Microsoft's multi-site data center cluster in West Des Moines, Iowa: two older sites in service, two new campuses under construction for 2028, a fifth pre-construction.

Operating, expanding. The older Alluvion and Osmium sites are in service. Ginger East and Ginger West are under construction with completion estimated for mid-2028, and Ruthenium has land but no construction on record. Microsoft publishes no megawatt figure for any of them.
$32.2M
property taxes Microsoft pays the city (city fact sheet, Mar. 2026)
Microsoft states no MW for the cluster
5 sites
Alluvion, Osmium, Ginger East, Ginger West, Ruthenium
two in service, two under construction, one pre-construction
1.8M sq ft
planned at each Ginger site
about $1B each, announced in 2021
Mid-2028
Ginger East completion estimate
Ginger West: summer 2028
OperatorMicrosoft (owner-occupied Azure data centers)
CustomerMicrosoft itself; no outside tenant identified
Planned IT capacity190 MW at full build-out (our estimate)
First building in serviceIn service since 2021 (about 190 MW of IT capacity live, estimated)
Next deadline2028: Ginger East completion, estimated mid-2028 (Ginger West summer 2028)
Power

Power and the grid

Energized, size not disclosed

Sources on record, size not disclosed
Not used, not on record, or dropped

Getting on the grid

Who supplies what, what it costs, and what is still not public.

  1. Dec. 27, 2018
    City funds Osmium grants
    West Des Moines sells $10.48M of urban renewal bonds to pay economic development grants to Microsoft in the Osmium area. Local government · Oct. 2026
  2. Not set
    MidAmerican's published terms
    Large customers pay their own interconnection costs and commit to 10 years of power, with exit penalties if they leave early. Company · Oct. 2026
  3. Not set
    No campus contract public
    No electric service agreement, contracted MW or rate schedule for the cluster is public. Company · Oct. 2026
  4. Not set
    No on-site generation found
    No air permit for on-site generation was retrievable; the state's permit search could not be read. see Permits

On-site generation on file

Backup generators (emergency use, not a power supply)
Permits

Permits checklist

1 pending · 4 granted · 1 checked, nothing on file

Approvals a campus like this normally needs, and what we found.

Risks

What could slow it down

Money

Money on record

$1.2B
Alluvion investment expected (2018 city filing)
final taxable value expected over $240M Local government · Oct. 2026
$20.3M
state sales tax rebate for Alluvion
approved Apr. 18, 2014; a rebate on construction materials, available until 2021 News report · Oct. 2026
$4.7M
state tax benefits for Osmium phase 1
phase one of four, 2016 News report · Oct. 2026
$10.05M
city grants to Microsoft in the Osmium area
paid from 2018 city bonds Local government · Oct. 2026
$32.2M
Microsoft property taxes to the city (city fact sheet)
Microsoft also committed $25M to water systems News report · Oct. 2026
Timeline

What happened, and what is due

SitePaper trailConstructionPowerPermitsMoneyLegalUpcoming
  1. April 18, 2014
    Site Alluvion is revealed as Microsoft's $1.1B data center (press). News report · Oct. 2026
  2. July 22, 2016
    Site Osmium is announced as a four-phase campus of 1.7M sq ft. News report · Oct. 2026
  3. Dec. 27, 2018
    Money City delivers $10.48M of bonds to fund grants to Microsoft. Local government · Oct. 2026
  4. 2021
    Site Ginger East and West are announced at about $1B and 1.8M sq ft each; the city expected them done by 2022. News report · Oct. 2026
  5. Dec. 2021
    Permits City approves the third Osmium building. News report · Oct. 2026
  6. July 2022
    Permits City issues a permit to Weitz for a 184,600 sq ft building near Ginger East. News report · Oct. 2026
  7. 2024
    Site Microsoft buys 111 acres for Ruthenium and files for two Ginger West buildings. News report · Oct. 2026
  8. March 2026
    Money A city fact sheet says Microsoft pays $32.2M in property taxes and uses 2.6% of the city's water. News report · Oct. 2026
  9. 2028
    Construction Ginger East completion estimated for mid-2028; Ginger West for summer 2028. Company · Oct. 2026
Construction activity

Building activity by quarter

Since Aug. 2024: 3 FAA filings (Aug. 2024 to May 2026): tallest permanent commercial use building 28 ft (filed Feb. 2026) and tallest crane 106 ft (May 2026).

FAA filings
’25
’26
Dot size: records in the quarter, largest = 1. Two-digit years mark each first quarter.
The buildings

Specs

Alluvion: 8 buildings
White Crane Road; more than 1M sq ft; first announced in 2014
News report · Oct. 2026
Osmium: 5 planned
5855 SW Kerry St; 1.7M sq ft at build-out; announced in 2016; four buildings operating (tracker estimate)
News report · Oct. 2026
Ginger East: 130 acres
south of Highway 5; about 1.8M sq ft; Weitz is general contractor
News report · Oct. 2026
Ginger West: 180 acres
Booneville Road; buildings DSM 42 and DSM 43; Turner is general contractor
News report · Oct. 2026
Ruthenium: 111 acres
bought in 2024 next to Osmium; no construction on record
News report · Oct. 2026
2.6% of city water
share of West Des Moines water pumped that Microsoft's data centers use (6% at peak)
News report · Oct. 2026
Who is involved

Owners, partners and builders

Owners
  • Microsoft: developer, owner and operator of all five sites
Decision-makers
  • City of West Des Moines: zoning, permits, urban renewal bonds and grants
  • Iowa Economic Development Authority: job and tax incentives
Power and water
  • MidAmerican Energy: electric utility
  • West Des Moines Water Works (Central Iowa Water Works): water
Contractors
  • Weitz: Ginger East
  • Turner: Ginger West
Still unknown

Open questions

Where this comes from

136 records from 24 documents

Drawn from news reports, state agency records, company statements, local government records, public and commercial datasets and our own analysis, each kept with its date and source. The bar shows documents by type.

News report 12State agency 7Company 4Local government 3Dataset 2Analysis 1
Evidence

Every quote behind this page

Grade key: A = the primary record itself (permit, filing, exhibit) · B = a dated official statement · C = news reporting. Map distances are our own measurements on OpenStreetMap and carry no grade. Allegations in lawsuits are marked as such in the quotes.

Power (11)
  • Utility: MidAmerican Energy
    “Microsoft Ginger West, 11100 Booneville Road - Proposed secondary access to MidAmerican Energy substation internal to the data center site”
    Local government · May 2026 · grade A
  • Each operating/expanding sub-site has a MidAmerican Energy substation internal to the site (city minutes list secondary-access items for Ginger East, Ginger West and Osmium on May 4, 2026). Substation presence is a signa
    “Microsoft Ginger West, 11100 Booneville Road - Proposed secondary access to MidAmerican Energy substation internal to the data center site - MML2-007300-2026”
    Local government · May 2026 · grade A
  • Utility: MidAmerican Energy
    “including families, small businesses, manufacturers and yes, large data centers”
    Company · Oct. 2026 · grade B
  • Power plan: grid
    “That includes the new substations or transmission lines needed to connect them to our power grid”
    Company · Oct. 2026 · grade B
  • Ruthenium site: 111 acres, directly west of the Project Osmium campus, near an existing substation; land acquired, pre-construction
    “The Ruthenium site is located directly west of Microsoft's existing Project Osmium campus and near an existing substation.”
    News report · Oct. 2026 · grade C
  • Grid operator: MISO
    “Inferred from this folder's utility record: MidAmerican Energy's Iowa service territory interconnects in MISO; no campus document opened states the ISO.”
    grade C
  • IT capacity: not stated
    “Documented absence: Microsoft's own Ginger East and Ginger West construction pages state no MW figure, and no opened primary or company source publishes IT load for any cluster sub-site.”
    Company · Oct. 2026 · grade C
  • Utility service: not stated
    “Documented absence: MidAmerican publishes no contracted or allocated MW for this campus; its large-customer page states service terms without any campus figure.”
    Company · Oct. 2026 · grade C
  • Stated campus size: not stated
    “Documented absence: press coverage of every cluster sub-site reports square footage and dollars but no company-stated MW; Microsoft publishes no MW for the cluster.”
    News report · Oct. 2026 · grade C
  • On-site generation: not stated
    “Documented absence: no Iowa DNR air quality construction permit for on-site generation at this campus was retrievable”
    State agency · Oct. 2026 · grade C
  • Sub site ruthenium: 111 acres directly west of Project Osmium, near an existing substation; land acquired 2024
    “The Ruthenium site is located directly west of Microsoft's existing Project Osmium campus and near an existing substation”
    News report · Oct. 2026 · grade C
Money and contracts (39)
  • urban renewal development grants (bond-financed): scope
    “providing economic development grants to Microsoft in connection with the development of data centers, related business facilities and supporting infrastructure improvements”
    Local government · Oct. 2026 · grade A
  • urban renewal development grants (bond-financed): grant amount 10050000 USD
    “Deposit to Project Fund $10,050,000.00”
    Local government · Oct. 2026 · grade A
  • urban renewal development grants (bond-financed): bond principal 10480000 USD
    “The Bonds will mature June 1 in the years and amounts as follows”
    Local government · Oct. 2026 · grade A
  • urban renewal development grants (bond-financed): early redemption
    “The Bonds are NOT subject to early redemption”
    Local government · Oct. 2026 · grade A
  • urban renewal development grants (bond-financed): condition (loan agreement)
    “The purchaser of the Bonds agrees to enter into a loan agreement with the City pursuant to authority contained in Section 384.24A of the Code of Iowa”
    Local government · Oct. 2026 · grade A
  • urban renewal development grants (bond-financed): tax pledge / security
    “The Bonds are general obligations of the City and the unlimited taxing powers of the City are irrevocably pledged for their payment”
    Local government · Oct. 2026 · grade A
  • development agreement (Project Alluvion): final taxable valuation (expected) 240000000 USD
    “will represent a total investment of approximately $1.2 billion by the company at the site and a final taxable valuation of over $240 million”
    Local government · Oct. 2026 · grade A
  • development agreement (Project Alluvion): capital investment (expected) 1200000000 USD
    “will represent a total investment of approximately $1.2 billion by the company at the site and a final taxable valuation of over $240 million”
    Local government · Oct. 2026 · grade A
  • development agreement (Project Osmium): final taxable valuation (expected) 313000000 USD
    “This center, named Project Osmium, will ensure continued construction in the City and will carry a final taxable valuation of over $313 million”
    Local government · Oct. 2026 · grade A
  • The City of West Des Moines delivers its $10.48M Series 2018E urban renewal bonds; the $10.05M project fund finances economic development grants to Microsoft in the Osmium Urban Renewal Area.
    “Proceeds of the Bonds will be used for the purpose of carrying out an urban renewal project in the Osmium Urban Renewal Area”
    Local government · Oct. 2026 · grade A
  • development / infrastructure agreement (Project Osmium): no property tax abatement; Microsoft property taxes fund the infrastructure its data centers need
    “Our agreements with Microsoft use their property taxes to fund the infrastructure they need for their data centers, so there will be no property tax abatement for this project.”
    Local government · July 2016 · grade A
  • Developer: Microsoft Corporation
    “Microsoft has contracted Weitz Construction as the general contractor for the Ginger East datacenter in Iowa”
    Company · Oct. 2026 · grade B
  • Tenants: Microsoft (owner-occupied, Azure)
    “Microsoft is building a datacenter in greater Des Moines, Iowa”
    Company · Oct. 2026 · grade B
  • electric service framework (published large-customer policy): interconnection cost
    “When large companies, such as data centers or manufacturing plants, expand or move to our service area, they pay their own way”
    Company · Oct. 2026 · grade B
  • electric service framework (published large-customer policy): minimum term / take-or-pay 10 years
    “These customers also commit to paying for 10 years of power, even if their usage fluctuates”
    Company · Oct. 2026 · grade B
  • electric service framework (published large-customer policy): early exit
    “If they leave early, they pay exit penalties”
    Company · Oct. 2026 · grade B
  • Project Mountain third expansion: the IEDA awards up to $20M in tax credits against a minimum $677.6M investment - the incentive pattern later repeated for Alluvion (2014) and Osmium (2016).
    “The company will be eligible to receive up to $20 million in tax credits”
    Company · Oct. 2026 · grade B
  • Project status: building on track - operating (Alluvion and Osmium in service, Title V operating permits in force) with shell-stage expansion (Ginger East under construction to mid-2028; Ginger West to summer 2028; Ruthe
    “Microsoft has contracted Weitz Construction as the general contractor for the Ginger East datacenter in Iowa. Construction is estimated to be completed by mid-2028.”
    Company · April 2026 · grade B
  • construction contract (general contractor): general contractor for the Ginger East datacenter, completion estimated mid-2028
    “Microsoft has contracted Weitz Construction as the general contractor for the Ginger East datacenter in Iowa.”
    Company · March 2026 · grade B
  • Ginger west site: 180 acres south of 11100 Booneville Road; about 1.8 million sq ft; about $1 billion
    “In the west of the city, Microsoft is developing on 180 acres south of 11100 Booneville Road for what is known as Project Ginger West.”
    News report · Oct. 2026 · grade C
  • Tenant status: Owner-occupied by Microsoft; no third-party tenant identified
    “none found (owner-occupied by developer; no third-party tenant)”
    grade C
  • state incentive award - High Quality Jobs Program (Project Alluvion): incentive 20300000 USD
    “the Iowa Economic Development Authority approved a $20.3m sales tax rebate on construction materials for the project, available until 2021”
    News report · Oct. 2026 · grade C
  • state incentive award - High Quality Jobs Program (Project Alluvion): term
    “the Iowa Economic Development Authority approved a $20.3m sales tax rebate on construction materials for the project, available until 2021”
    News report · Oct. 2026 · grade C
  • state incentive award - High Quality Jobs Program (Project Alluvion): minimum assessment 255000000 USD
    “Microsoft have agreed to a minimum taxable assessed value of $255 million once the project is completed”
    News report · Oct. 2026 · grade C
  • state incentive award - High Quality Jobs Program (Project Alluvion): jobs commitment 84 jobs (66 at $24.32/hr or more)
    “The state also will require Microsoft to create 84 permanent jobs when the project is completed, and that 66 of them must pay at least $24.32 per hour”
    News report · Oct. 2026 · grade C
  • state incentive award - High Quality Jobs Program (Project Alluvion): capital investment commitment 1100000000 USD
    “Microsoft has been given the go-ahead to build a $1.1bn data center just outside the capital of Iowa”
    News report · Oct. 2026 · grade C
  • city infrastructure commitment (Project Alluvion): infrastructure funding 18000000 USD
    “West Des Moines has pledged to spend $18 million on infrastructure improvements for the data center, paid for through tax increment financing”
    News report · Oct. 2026 · grade C
  • state incentive award - High Quality Jobs Program (Project Alluvion): termination
    “Finding: no termination, cancellation or clawback clause for the Alluvion IEDA award appears in any opened source; the executed HQJ contract is not public in the records opened.”
    News report · Oct. 2026 · grade C
  • state incentive award - High Quality Jobs Program (Project Osmium, phase one): incentive 4700000 USD
    “was awarded nearly $4.7 million in tax benefits from High Quality Jobs Program for phase one of a four-phase regional data center”
    News report · Oct. 2026 · grade C
  • state incentive award - High Quality Jobs Program (Project Osmium, phase one): capital investment commitment 417700000 USD
    “the company's $417.7 million capital investment in West Des Moines is expected to create 57 jobs”
    News report · Oct. 2026 · grade C
  • state incentive award - High Quality Jobs Program (Project Osmium, phase one): jobs commitment 57 jobs
    “the company's $417.7 million capital investment in West Des Moines is expected to create 57 jobs”
    News report · Oct. 2026 · grade C
  • state incentive award - High Quality Jobs Program (Project Osmium, phase one): termination
    “Finding: no termination, cancellation or clawback clause for the Osmium phase-one IEDA award appears in any opened source; the executed HQJ contract is not public in the records opened.”
    News report · Oct. 2026 · grade C
  • electric service framework (published large-customer policy): finding
    “Finding: no campus-specific electric service agreement, contracted MW or rate schedule for the West Des Moines cluster is public; service rests on MidAmerican's published large-customer framework and Iowa Utilities Commission-approved tariffs.”
    Company · Oct. 2026 · grade C
  • Project Alluvion is unmasked as Microsoft: a $1.1B data center on a 154-acre site partly occupied by Willow Creek Golf Course holes, with the IEDA sales tax rebate approved the same week.
    “it wasn't until last Friday's meeting that Microsoft was revealed to be the company behind the development”
    News report · Oct. 2026 · grade C
  • Ginger East and Ginger West are announced at roughly $1B and 1.8M sq ft each; city officials then expected construction to begin in fall 2021 and complete in 2022 - a schedule that has since slipped to 2028 (see conflict
    “City officials have said they expect construction on the new facilities to begin in Fall 2021 and completed in 2022”
    News report · Oct. 2026 · grade C
  • A City of West Des Moines fact sheet circulated to Norwalk officials states Microsoft pays $32.2M in property taxes to the city, its data centers use 2.6% of city water pumped (6% at peak), Microsoft has committed $25M t
    “Microsoft data centers in West Des Moines only represented 2.6 percent of total water pumped to local customers”
    News report · Oct. 2026 · grade C
  • Microsoft acquires 111 acres for Project Ruthenium directly west of Osmium, near an existing substation; the city later created a Ruthenium Urban Renewal Area (ordinance adoption located via search snippet only - see sea
    “The company recently acquired 111 acres in West Des Moines for a new data center development known as Project Ruthenium”
    News report · Oct. 2026 · grade C
  • county records reported by the Business Record put the p
    “Microsoft has acquired 377 acres of farmland in Van Meter's Vision Park”
    News report · Oct. 2026 · grade C
  • design has not begun and no development agreement existed as of the October 12, 20
    “As reported by the Des Moines Register, the land purchase in Woodward was revealed on October 12 during a meeting with local residents”
    News report · Oct. 2026 · grade C
Permits and government (24)
  • minor modification / grading plan (site access): proposed (subcommittee minutes)
    “Microsoft Ginger East, 1475 SE Maffitt Lake Road - Proposed secondary access to MidAmerican Energy substation internal to the data center site - MML2-007302-2026”
    Local government · May 2026 · grade A
  • County code: 19049
    “Permit Renewal Application Deadline: 10/09/2030 EIQ Number: 92-7022 Facility File Number: 25-17-008”
    State agency · April 2026 · grade A
  • Title V air quality operating permit: issued
    “Name of Permitted Facility: Ginger West Data Center - 11100 Booneville Rd Air Quality Operating Permit Number: 26-TV-003 Expiration Date: 04/09/2031”
    State agency · April 2026 · grade A
  • Title V air quality operating permit: issued
    “Name of Permitted Facility: Willow Creek / Ginger East Data Centers Air Quality Operating Permit Number: 24-TV-005 Expiration Date: December 8, 2029”
    State agency · Dec. 2024 · grade A
  • Title V air quality operating permit: issued
    “Air Quality Operating Permit Number: 24-TV-004 Expiration Date: 10/16/2029”
    State agency · Oct. 2024 · grade A
  • FAA OE/AAA: Determined - No Hazard
    “ASN 2024-ACE-4662-OE: DSM44, Building, 27 ft AGL, 884 ft AMSL, 41.53053889,-93.86361667, Determined - No Hazard, submitted 2024-08-22”
    FAA · Aug. 2024 · grade A
  • Iowa Economic Development Authority Board: Project Mountain third expansion award - up to $20M in tax credits ($15M sales and use tax refund during construction; $5M investment tax credit)
    “Microsoft's project, dubbed Project Mountain throughout the application process, was awarded state incentives earlier today by the Iowa Economic Development Authority Board”
    Company · Oct. 2026 · grade B
  • West Des Moines City Council: Local incentives for the Project Mountain expansion
    “Local incentives from the City of West Des Moines were approved during last week's West Des Moines City Council meeting”
    Company · Oct. 2026 · grade B
  • FAA obstruction evaluation (7460-1): Determined - No Hazard
    “ASN 2026-ACE-2287-OE: Temporary Crane - DSM18, Mobile Crane, 106 ft AGL, 1073 ft AMSL, 41.51331,-93.71469, Determined - No Hazard, submitted 2026-05-13”
    FAA · May 2026 · grade B
  • Tallest structure filed with the FAA (ft): 28 ft
    “ASN 2026-ACE-462-OE: DSM 18, Commercial Use Building, 28 ft AGL, 995 ft AMSL, 41.51331,-93.71469, Determined - No Hazard, submitted 2026-02-03”
    FAA · Feb. 2026 · grade B
  • FAA obstruction evaluation (7460-1): Determined - No Hazard
    “ASN 2026-ACE-462-OE: DSM 18, Commercial Use Building, 28 ft AGL, 995 ft AMSL, 41.51331,-93.71469, Determined - No Hazard, submitted 2026-02-03”
    FAA · Feb. 2026 · grade B
  • building permit: issued
    “in December the company was issued a permit valued at $255 million for a data center at 5855 SW Kerry St”
    News report · Oct. 2026 · grade C
  • building permit: issued
    “2022 also saw the company gain a permit in July for a data center at 3655 S.E. Soteria Ave”
    News report · Oct. 2026 · grade C
  • building permit filing: filed
    “The company recently filed to construct two data center buildings at the site known as DSM 42 and 43”
    News report · Oct. 2026 · grade C
  • site plan approval: approved
    “West Des Moines' City Council and Plan and Zoning Commission gave permission for the 241,000 sq ft facility in December”
    News report · Oct. 2026 · grade C
  • site plan approval: approved
    “The company was granted permission for a third of five buildings on the site in 2021 and permission for a fourth was granted last year”
    News report · Oct. 2026 · grade C
  • rezoning: approved
    “The Plan and Zoning Commission of West Des Moines has approved a plan to change 188 acres to be zoned as light industrial”
    News report · Oct. 2026 · grade C
  • Osmium construction was delayed in 2017 amid the Des Moines Water Works nitrate-removal litigation; state legislation threatening a regional water authority would have halted water infrastructure planning for the data ce
    “Work on the Osmium facility was delayed in 2017 due to legal challenges between local utility Des Moines Water Works and three neighboring counties”
    News report · Oct. 2026 · grade C
  • West Des Moines City Council: Request that IEDA award Project Alluvion $18M in sales tax rebates, the maximum under the High Quality Jobs Program
    “The West Des Moines City Council on March 24 approved asking the IEDA to award Project Alluvion $18 million in sales tax rebates”
    News report · Oct. 2026 · grade C
  • Iowa Economic Development Authority Board: Project Alluvion award - $20.3M sales tax rebate on construction materials
    “on Friday the Iowa Economic Development Authority approved a $20.3m sales tax rebate on construction materials for the project, available until 2021”
    News report · Oct. 2026 · grade C
  • Iowa Economic Development Authority Board: Project Osmium phase-one award - nearly $4.7M in High Quality Jobs Program tax benefits against a $417.7M phase-one capital investment
    “In West Des Moines, Microsoft Corporation was awarded nearly $4.7 million in tax benefits from High Quality Jobs Program for phase one of a four-phase regional data center”
    News report · Oct. 2026 · grade C
  • West Des Moines Plan and Zoning Commission: Project Ginger West - rezone 188 acres to light industrial
    “The Plan and Zoning Commission of West Des Moines has approved a plan to change 188 acres to be zoned as light industrial”
    News report · Oct. 2026 · grade C
  • West Des Moines City Council and Plan and Zoning Commission: Project Osmium third building (241,000 sq ft) site approval
    “West Des Moines' City Council and Plan and Zoning Commission gave permission for the 241,000 sq ft facility in December”
    News report · Oct. 2026 · grade C
  • building permit: issued
    “in December the company was issued a permit valued at $255 million for a data center at 5855 SW Kerry St. The permit is for a 250,000 sq ft facility described as DSM 12 Buildout”
    News report · Dec. 2022 · grade C
Site and other (20)
  • County code: 19153
    “Willow Creek/Ginger East Data Centers, 550 SE White Crane Road & 1475 SE Maffitt Lake Road, West Des Moines, IA 50265”
    State agency · Dec. 2024 · grade A
  • County code: 19183
    “The new data center will be constructed in four phases on 200 acres of land (160 acres in Warren County and 40 acres in Madison County).”
    Local government · July 2016 · grade A
  • County code: 19121
    “The new data center will be constructed in four phases on 200 acres of land (160 acres in Warren County and 40 acres in Madison County).”
    Local government · July 2016 · grade A
  • Operator: Microsoft Corporation
    “West Des Moines Mayor Steve Gaer announced today that Microsoft will begin construction this spring of a data center in northern Warren and Madison County.”
    Local government · July 2016 · grade A
  • Current target date: Ginger East construction completion est. mid-2028; Ginger West est. summer 2028; other sub-sites not published
    “Construction is estimated to be completed by mid-2028”
    Company · Oct. 2026 · grade B
  • Microsoft begins operating its first West Des Moines data center (Project Mountain, South 88th Street) - the first major technology data center in central Iowa. Mountain is a predecessor campus outside this cluster's spi
    “Microsoft has operated its West Des Moines facility since 2009”
    Company · Oct. 2026 · grade B
  • Alluvion buildings: eight buildings totaling more than 1 million sq ft (White Crane Road)
    “First announced in 2014, Project Alluvion is located on White Crane Road to the south of the Ginger East Site. It consists of eight buildings totaling more than one million sq ft”
    News report · Oct. 2026 · grade C
  • Microsoft's 377-acre acquisition in Van Meter's Vision Park (Dallas County, south of 360th Street) is a further separate site reported in 2026
    “The Business Record reports Microsoft has acquired 377 acres of farmland in Van Meter's Vision Park.”
    News report · Oct. 2026 · grade C
  • Construction stage: Operating (Alluvion and Osmium buildings in service) with Ginger East and Ginger West under construction and Ruthenium pre-construction
    “Microsoft already has a major presence around West Des Moines, with multiple campuses in operation or development”
    News report · Oct. 2026 · grade C
  • Stage: operating + building (cluster)
    “Microsoft already has a major presence around West Des Moines, with multiple campuses in operation or development”
    News report · Oct. 2026 · grade C
  • Original target date: not stated
    “Documented absence: no cluster-level original COD was ever published; Microsoft publishes only current per-site construction estimates.”
    Company · Oct. 2026 · grade C
  • First announced: 2014 (Project Alluvion, the cluster's first named expansion sub-site)
    “First announced in 2014, Project Alluvion is located on White Crane Road to the south of the Ginger East Site”
    News report · Oct. 2026 · grade C
  • Sub site osmium: 5855 SW Kerry Street; five buildings planned; 1.7M sq ft at full build-out
    “The SW Kerry Street site, also known as Project Osmium was announced in 2016”
    News report · Oct. 2026 · grade C
  • Sub site alluvion: White Crane Road; eight buildings; more than 1M sq ft
    “It consists of eight buildings totaling more than one million sq ft”
    News report · Oct. 2026 · grade C
  • Sub site ginger east: About 130 acres south of Highway 5 and north of South County Line Road; about 1.8M sq ft planned
    “Project Ginger East will be located on about 130 acres south of Highway 5 and north of South County Line Road”
    News report · Oct. 2026 · grade C
  • Sub site ginger west: 180 acres south of 11100 Booneville Road; buildings filed as DSM 42 and DSM 43; about 1.8M sq ft planned
    “In the west of the city, Microsoft is developing on 180 acres south of 11100 Booneville Road for what is known as Project Ginger West”
    News report · Oct. 2026 · grade C
  • Water supplier: West Des Moines Water Works / Central Iowa Water Works (regional)
    “In 2019, the Des Moines Water Works began to morph into the Central Iowa Water Works, which will include several utilities”
    News report · Oct. 2026 · grade C
  • Project Osmium is announced: a four-phase campus at 5855 SW Kerry Street planned at 1.7M sq ft at build-out; the IEDA phase-one award follows the same month.
    “The SW Kerry Street site, also known as Project Osmium was announced in 2016 and will span 1.7 million sq ft of land once fully built out”
    News report · Oct. 2026 · grade C
  • None of its acreage, timeline (2-3 years of design before construction) or statements attach to this
    “Microsoft has acquired 600 acres of land outside Des Moines, Iowa, for a potential data center campus.”
    News report · Oct. 2026 · grade C
  • Announced: March 24, 2014
    “The code name is Project Alluvion, a proposed data center.”
    News report · March 2014 · grade C