Warren, Michigan
Warren is held by two carmakers: General Motors, whose 330-acre Technical Center anchors the city, pays 8.31% of all taxable value, and Stellantis' FCA US, on a 224-acre Mound Road site, is fourth. Since 4 Nov 2026 owner data comes from the City's FY2025 ACFR, SEC filings and Wikipedia; the City's ArcGIS owner and sales layers sit on a host whose robots.txt answers 403, so parcel-level owners moved to unverified.
5 buildings · 3 with an owner established · 19 sources · 3 tier B · 2 tier A · prepared 2026-10-21
Can you find out who owns it?
Michigan records title by deed with the county register of deeds, which for Warren is Macomb County's. Every deed must state its price or carry an affidavit of value, because the state charges a transfer tax of $3.75 per $500 and the county another 55 cents. The City of Warren's Assessing Department keeps the roll of 59,077 parcels, tracks ownership changes and offers free owner-name lookup through BS&A behind an agree-to-disclaimer page; it also publishes owner and sales layers on ArcGIS Online, but that host answers 403 to robots.txt, so they are no longer read.
Is ownership public?An open dataset names the owner
Cost of one title searchOwner of record free (City of Warren BS&A lookup, 'available to the public free of charge', behind an agree-to-disclaimer page). Register of deeds statutory fees: $30.00 to record, $1.00 per page for copies, $5.00 to certify, searches by the register 50 cents per year searched with a $5.00 minimum (MCL 600.2567)
Bulk ownership dataCity of Warren Assessing 'Land Values' (owner, class, acreage, values) and 'Property Sales' layers on ArcGIS Online, linked from the Assessing page as 'Property Sale Maps'; the host's robots.txt answers 403, so they have not been read since 4 Nov 2026; no licence stated
Sale pricesEvery sale, with its address
1
The marquee buildings
The towers that set the tone of the core, and who holds them. A price is the price a document states, on the date it states — not an estimate of what the building is worth now.
| Building | Use | Owner | Owner type | Last price paid |
|---|---|---|---|---|
| General Motors Global Technical Center Bounded by 12 Mile, Mound and Chicago Rds and Van Dyke Ave |
Institutional | General Motors Wikipedia: GM's primary design and engineering centre, opened in stages from the 1950s to the 1970s, designed by Eero Saarinen and Argonaut Realty; GM acquired the first 100 acres for about $700 an acre; National Historic Landmark 2014, listed area 600 acres. GM's FY2025 10-K: its global vehicle architecture team 'is headquartered at our Technical Center in Warren, Michigan'. The FY2025 ACFR calls it 'a 330-acre complex' and ranks General Motors first taxpayer ($401.6M taxable incl. personal property, 8.31% of the city) and first employer (22,000). Which GM entity holds title is not stated by these sources. |
Public company | —B |
| Detroit Arsenal (U.S. Army TACOM) Warren, Michigan (42.497 N, 83.042 W) |
Institutional | United States of America (U.S. Army) Wikipedia: the 1940 tank plant was government-owned and contractor-operated; after tank work ended in 1996 the plant and some adjoining land were transferred to the City of Warren in 2001, and 'the portion of the property not sold to the city remains an active Army facility', managed by Installation Management Command and home to TACOM Life Cycle Management Command and the Ground Vehicle Systems Center. The article carries a disputed-accuracy banner (Jan 2026). The FY2025 ACFR names the 'Government of The United States' as Warren's second employer (7,652). The current installation's acreage is not stated. |
Government | —B |
| Stellantis Warren Truck Assembly 21500 Mound Rd |
Industrial | FCA US LLC (Stellantis) Wikipedia: an automobile factory 'owned and operated by Stellantis', opened 1938, 86.8 acres, 3,518 employees (2023). Stellantis' 2025 20-F lists Warren, Michigan among its significant assembly plants and names Warren Truck the largest in the U.S. The FY2025 ACFR describes FCA's 224-acre site with assembly, stamping and paint plants and ranks 'FCA US LLC-Chrysler' fourth taxpayer at $58.1M taxable, down from $144.9M (no. 2) in FY2015. The owning entity is taken from the ACFR's taxpayer name. |
Public company | —B |
| Warren City Hall and Civic Center (City Square) 1 City Square |
Civic | Not established the register is open, but this building was not matched FY2025 ACFR: City offices sit at One City Square, and the Civic Center Library occupies 35,000 sq ft of the City Hall main floor. In Dec 2024 the City held planning sessions on developing a town centre here (s17). The owner of record (the roll named the City's Downtown Development Authority) is open on the City's BS&A lookup, which sits behind a disclaimer page, and on an ArcGIS layer whose host answers 403 to robots.txt. |
Not established | —A |
| Macomb Community College South Campus 14500 E 12 Mile Rd |
Institutional | Not established the register is open, but this building was not matched Wikipedia: South Campus in Warren opened in 1965; address 14500 12 Mile Road. The FY2025 ACFR describes 'a 100-acre site on Twelve Mile Road'. Which public body holds title (the roll named the State Building Authority on the main parcel) is not stated by any open source read since the City's ArcGIS host began answering 403 to robots.txt. |
Not established | —A |
2
The core land
The most valuable ground in the city, and what the public record says about it.
Warren has no downtown of value; its most valuable ground is the GM Technical Center. Michigan assesses at 50% of true cash value (MCL 211.27a), and taxable value is capped below that until a sale. City-wide figures are from the FY2025 ACFR (December 2023 valuation); parcel-level values came from the City's Land Values layer, whose host now answers 403 to robots.txt, and are in unverified.
Largest taxpayer$401,575,507
General Motors, taxable value incl. IFT and OPRA, 8.31% of the city's $4,830.5M. FY2025 ACFR.
State equalized value, all taxable property$6,833,896,164
Taxable value $4,830,486,895. Real property SEV: residential $4,393.5M, industrial $923.8M, commercial $876.2M. FY2025 ACFR (valuation 31 Dec 2023).
Ten largest taxpayers' share16.44%
$794.1M of $4,830.5M taxable; GM alone 8.31%. FY2025 ACFR.
Land benchmark (2026 roll)$4.50 per sq ft commercial; $1.95-$3.45 industrial
Commercial primary land table $4.50/sq ft; industrial $3.45 (<3 ac), $2.85 (3-10 ac), $1.95 (10+ ac). City of Warren 2026 Land Analysis.
3
Who owns the town
At this scale the significant owner is rarely a trust or a fund: it is one or two local holding companies, a family in its second or third generation, and often the land around the town rather than the buildings in it.
Two carmakers hold the ground that matters in Warren: GM's Technical Center (330 acres by the City's account) and FCA US's 224-acre Mound Road complex. The Army keeps part of the Detroit Arsenal; the City took over the old tank plant and runs the parks. Parcel counts, acreages and values by owner came from the City's Land Values layer, whose host now answers 403 to robots.txt; they are kept in unverified. Rows below rest on the FY2025 ACFR and Wikipedia.
| Name | Type | Holding (source) |
|---|---|---|
| General Motors First taxpayer: $401.6M taxable in FY2025, 8.31% of the city, down from 13.10% in FY2015 (ACFR). Wikipedia lists the landmark's area as 600 acres (s18). |
Public company | Technical Center, 330 acres (ACFR)B |
| FCA US LLC (Stellantis) Assembly, stamping and paint plants on Mound Rd. Fourth taxpayer, $58.1M taxable (ACFR). Warren Truck Assembly alone is 86.8 acres (Wikipedia, s20). |
Public company | 224-acre site, three plants (ACFR)A |
| United States of America (U.S. Army) The part of the arsenal not transferred to the City in 2001 remains an Army facility managed by IMCOM (Wikipedia; disputed-accuracy banner). |
Government | Detroit Arsenal (active installation)B |
| City of Warren The ACFR calls Halmich Park the largest of the city parks. Wikipedia says the tank plant and some adjoining property were transferred to the City in 2001 (s19). |
Government | Halmich Park, about 80 acres (ACFR); former tank plant (2001)B |
5
Who builds the houses
New-home building in this market: the volume, and the firms behind it. Ownership of a builder matters as much as its volume — a private-equity platform and a family firm behave differently.
Warren is built out and adds almost no new homes. The Census permit files show 8 units permitted in 2021, 11 in 2022, 10 in 2023, 20 in 2024 and 40 in 2025 (36 single-family plus one 4-unit building). The City's own count of new one-family construction was worth $1.76M in FY2025 (ACFR). No national builder is known to be active. Who holds the newest stock came from the City's Land Values layer, whose host now answers 403 to robots.txt, so no builder is listed.
6
Commercial landlords
The commercial side, counted separately from housing: who holds the office, retail and industrial floor area.
Warren has almost no office market; its private commercial wealth is factories, warehouses, apartments and big-box stores. Apart from the two carmakers and the utilities (DTE Electric $72.0M, Consumers Energy $58.2M, International Transmission $55.1M taxable), the largest taxpayers are industrial REITs and LLCs. ACFR figures are FY2025 taxable value and include personal property and IFT/OPRA abatements.
| Name | Type | Warren holding / FY2025 taxable value |
|---|---|---|
| STAG Industrial (STAG Industrial Holdings LLC) STAG's FY2025 10-K lists four Warren buildings (13301 Stephens Rd, 27027 Mound Rd, 25295 Guenther Rd, 7500 Tank Ave) with 981,540 rentable sq ft. The ACFR ranks 'Stag Industrial Holdings LLC' ninth taxpayer, $21.4M taxable. |
REIT | 4 buildings, 981,540 sq ft (10-K)A |
| Lex Warren LP (LXP Industrial Trust MFG Cold JV, 20%) LXP's FY2025 10-K lists 26700 Bunert Rd, Warren, in its non-consolidated portfolio, 20% owned, 260,243 sq ft, through the MFG Cold JV. The ACFR names 'Lex Warren LP' eighth taxpayer. The link between the two is inferred from the name; neither source states it. |
REIT | 260,243 sq ft (10-K); eighth taxpayer, $22.0M taxableB |
| 14 Mack LP FY2025 ACFR. Which property it holds and its principals are not stated there. |
Private company | $24.8M taxable (sixth taxpayer)A |
| Home Depot Up from $3.0M in FY2015 (ACFR). |
Public company | $23.9M taxable (seventh taxpayer)A |
| Noble 12B LLC $12.3M in FY2015 (ACFR). |
Private company | $15.5M taxable (tenth taxpayer)A |
| Flagstar Financial & Leasing; Modular Automotive Systems LLC; Hoover Eleven Holdings LLC; TG Warren Inc Listed below the ten largest in the FY2025 ACFR taxpayer table. TG Warren Inc was tenth in FY2015 ($4.1M). |
Private company | $11.1M, $10.6M, $10.0M and $9.8M taxableA |
?
Looked for and not found
Claims this page would have made if a source could be opened. They are left out rather than guessed.
- Who stands behind the LLCs among the largest taxpayers (14 Mack LP, Noble 12B LLC, Hoover Eleven Holdings LLC, TG Warren Inc). No filing opened here names their principals.
- Whether Lex Warren LP (roll: 26600 Bunert Rd, an 18.0-acre cold-storage parcel) is the property LXP lists at 26700 Bunert Rd. The addresses differ; the match is inferred from the 'Lex' name and the cold-storage class.
- Macomb County's register of deeds fees, transfer-tax practice and tax-foreclosure results: www.macombgov.org disallows ClaudeBot and anthropic-ai in robots.txt, so the county's own pages were not read. The statutes are cited instead.
- The BS&A lookup (bsaonline.com, uid=305), which would give current owner, assessed and taxable value per parcel, was not opened because it sits behind an agree-to-disclaimer page.
- GM Technical Center parcels: four section-9 parcels in GENERAL MOTORS LLC, 669 acres, 8,002,076 sq ft, value $532.3M; 30001 Van Dyke (223.8 acres, 3,988,890 sq ft, $231.6M) the most valuable parcel in the city; GM 17 parcels, 758 acres, $584.4M in all, more than the next 18 owners combined — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
- Detroit Arsenal parcels: 35 exempt section-16 parcels in 'USA DET ARSENAL' variants mailed to US Army TACOM, about 162 acres; 16 'USA RED RUN DRAIN' parcels, about 44 acres — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
- FCA US LLC holdings: 12 parcels, 242.5 acres, $69.2M; 21400 Mound (130.9 acres, 3,327,621 sq ft, $38.1M) and 21500 Mound (58.3 acres, 1,784,888 sq ft, $25.1M); UAW-Chrysler National Training Center, 2500 9 Mile, 27.4 acres — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
- City Square owner of record CITY OF WARREN DDA (1 City Square 6.3 acres; 8150-8250 City Square S 5.3 acres; 29430 Van Dyke 4.7 acres with 420,450 sq ft classed 'Apartment', value $81.2M); DDA 15 parcels, 35.5 acres; City 586 parcels, 532.5 acres; TIFA 37 parcels — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
- Macomb Community College South Campus owner of record STATE BUILDING AUTHORITY (14500 12 Mile, 55.2 acres; 28887 Hayes Rd, 46.1 acres); four adjacent parcels (46.1 acres) in the college's own name — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
- 11800 E 12 Mile Rd hospital campus, 27.8 acres, owner of record DETROIT MACOMB HOSPITAL (exempt); the ACFR names Ascension Health fourth employer (1,745) without an address — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
- Universal Mall site: 28500 Dequindre (46.1 acres, 348,256 sq ft, $19.1M) in UNIVERSAL MALL PROPERTIES LLC and 28200 Dequindre (9.8 acres, 85,021 sq ft) in UNIVERSAL MALL PROPERTIES II LLC; Target store parcel 28800 Dequindre in TARGET CORPORATION — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
- 6500 E 14 Mile Rd: 60.2 acres, 983,373 sq ft warehouse-showroom, built 1969, value $51.1M, owner of record 14 MACK LP, sharing a Southfield mailing address with 28405 Van Dyke Owner LLC (442,148 sq ft parking structure) — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
- 26661 Bunert Rd distribution warehouse (12.2 acres, 238,144 sq ft, built 2006) sold for $32,375,000 on 30 Dec 2025 to NM LPRI LLC (New York), the largest sale since Apr 2024; previous owner VJL Real Estate LLC, value $18.0M — previously from services8.arcgis.com (Property Sales layer), whose robots.txt answers 403; no other open source found (2026-11-04)
- Other landholders by parcel count and acreage: Warren Consolidated Schools 30 parcels, 242.3 acres (and five other districts); International Transmission 11 parcels, 230.1 acres; State Building Authority 2 parcels, 101.3 acres; Grand Trunk Western/CN 28 parcels, about 90 acres; DTE Electric and Gas 13 parcels, 18.7 acres — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
- Commercial holdings by parcel: Noble 51 LLC (28201 Van Dyke, 53.2 acres, 1,150,792 sq ft, plus 28408 Lorna; $38.0M); STAG Industrial Holdings LLC named on all four 10-K buildings; apartment owners TG Warren Inc ($34.6M), Parkview Village Apartments ($32.4M), Regency Park Apartments MI LLC ($22.7M); single-family rental LLCs Riparian MDMI SFR Portfolio 1-3 and MDMI SFR Portfolio 4 (125 houses, $21.5M), Macomb 12 LLC, MGL 1 LLC — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
- Newest residential stock by owner: Cross Road Pines Apartments LLC (40 condo units, 24 built 2020+), Bridges Group LLC (24 parcels), Hoover Road Properties LLC (8 condos), Columbia Homes Heritage LLC (32.8 acres), Vasa V Homes LLC (8 vacant lots); no 'Housing Commission' owner on the layer — previously from services8.arcgis.com, whose robots.txt answers 403; no other open source found (2026-11-04)
§
Sources
- Assessing Department (59,077 parcels: about 54,620 real and 4,457 personal; BS&A database 'available to the public free of charge'; links to Property Sale Maps) — City of Warren · openA
- Property Tax Information (BS&A disclaimer: 'The desired information can be queried by Property Owner Name, Property Address, or Property Parcel Number'; 'I agree, proceed to BSA system') — City of Warren · openA
- Annual Comprehensive Financial Report, fiscal year ended June 30, 2025 (principal property taxpayers, SEV and taxable value by class, principal employers, value of new construction) — City of Warren · openA
- Register of deeds fees, MCL 600.2567 — Michigan Legislature · openA
- State Real Estate Transfer Tax Act, MCL 207.525 ($3.75 per $500; instrument must state value or carry an affidavit) — Michigan Legislature · openA
- County transfer tax, MCL 207.504 (55 cents per $500 in a county under 2,000,000) — Michigan Legislature · openA
- General property tax act, MCL 211.27a (assessed at 50% of true cash value; taxable value cap, uncapped on transfer) — Michigan Legislature · openA
- General Motors Company, Form 10-K for 2025 (Item 1: global vehicle architecture team headquartered at the Technical Center in Warren; Item 2 Properties) — U.S. Securities and Exchange Commission · openA
- Stellantis N.V., Form 20-F for 2025 (significant vehicle assembly plants: Warren, Michigan; 'the largest by region are Warren Truck (U.S.)') — U.S. Securities and Exchange Commission · openA
- STAG Industrial, Inc., Form 10-K for 2025 (Warren: 4 buildings, 981,540 rentable sq ft; Schedule III: 13301 Stephens Rd, 27027 Mound Rd, 25295 Guenther Rd, 7500 Tank Ave) — U.S. Securities and Exchange Commission · openA
- LXP Industrial Trust, Form 10-K for 2025 (non-consolidated portfolio: 26700 Bunert Rd, Warren MI, 20% owned, 260,243 sq ft; MFG Cold JV, 20% interest) — U.S. Securities and Exchange Commission · openA
- 2026 Industrial Economic Condition Factor (E.C.F.) Analysis (sales with parcel, address, date, instrument and price; unique ECFs for GM and FCA parcels and the 'Tank Plant') — City of Warren, Assessing Department · openA
- 2026 Commercial and Industrial Land Analysis (land sales and land-table rates per sq ft) — City of Warren, Assessing Department · openA
- Building Permits Survey, place-level annual files (Midwest region): Warren city, Michigan, 2021-2025 — U.S. Census Bureau · openA
- Town Center Development Project (community planning session, 18 Dec 2024) — City of Warren · openA
- General Motors Technical Center — Wikipedia · openA
- Detroit Arsenal (Warren, Michigan) — Wikipedia · openA
- Warren Truck Assembly — Wikipedia · openA
- Macomb Community College — Wikipedia · openA