3901 Union Blvd, Saint Louis, MO 63115 Property Records

St. Louis City property record for 3901 Union Blvd, Saint Louis, MO 63115 · Last verified June 2026

Property Summary

Property Type	Warehouse, Storage
Details	2,188,097 sqft · built 1944
Lot Size	27.1 acres (1,181,944 sqft)
Owner	Company Name on File
Tax Bill	$122,906 (2025)
Deeds & Mortgages	Jan 2018 Loan Modification Apr 2017 Loan Modification
APN	`4354-9-310.000`

Property Details

APN / Parcel Number

Primary APN	`4354-9-310.000`
Alternative APNs	`4354-00-0310-0` `43540003101`

Interior

Units	14 Units
Stories	1 Story
Building Area	2,188,097 sqft Total Area
Gross Area	729,366 sqft
1st Floor Area	259,200 sqft
Elevator	Elevator

Exterior

Year Built	Built 1944
Effective Year Built	Effective 1944
Exterior Material	Combination
Construction Type	Brick
Roof Type	Flat
Lot Area	1,181,944 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	3901 UNION BLVD, 104
City	SAINT LOUIS
State	MO
Zip	63115-1130
Property Category	Industrial
Property Type	Industrial > Warehouse, Storage
Legal Description	C.B. 4354-4350 UNION/NATURAL BRIDGE 41.768 ACS UNION SEVENTY CNTR SUBDN LOT 29
Legal Subdivision	UNION SEVENTY CNTR SUB
Legal Block	5
Legal Lot Number	29
Jurisdiction	ST LOUIS CITY MO
Township / Civil Division	ST. LOUIS
Census Block Group	5
Census Block	5004
Census Tract	126900

Owner

Source: St. Louis City records · APN 4354-9-310.000

Assessment roll updated June 16, 2026 · Last verified June 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on File
Mailing Address	3901 UNION BLVD, 104A, SAINT LOUIS, MO 63115-1107
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Date	Document
Jan 23, 2018	Loan Modification, Mortgage · Line of Credit GREAT STHRN BK
Apr 20, 2017	Loan Modification, Mortgage · Line of Credit GREAT STHRN BK

Assessor's Deed Record

Deed Names	Verified Name on Deed
Record Updated	Sep 20, 2026

January 2018: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	ST LOUIS CITY MO
Recording Date	Jan 23, 2018
Property Address	3901 UNION BLVD, SAINT LOUIS, MO 63115-1111
Document Number	0001230084
Instrument Date	Jan 19, 2018
Instrument	180123000084
Transaction Type	Mortgage
Record Updated	Jan 30, 2018
Title Company	NETCO TITLE

Transaction

Tax	$0.00
Additional	Multiple Parcels

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Partnership
Address	3901 UNION BLVD #104A ST LOUIS MO 631151107, 104A, ST LOUIS, MO 63115-1107

Mortgage

Document Number	1230084
Date	Jan 23, 2018
Instrument	180123000084

Lender

Name	GREAT STHRN BK
Type	Bank
Address	1451 E BATTLEFIELD ST, SPRINGFIELD, MO 65804-3701

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	84 Months
Due	Jan 22, 2025

Interest

Rate Type	Adjustable Rate

April 2017: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	ST LOUIS CITY MO
Recording Date	Apr 20, 2017
Property Address	3901 UNION BLVD, SAINT LOUIS, MO 63115-1111
Document Number	0004200014
Instrument Date	Jan 15, 2017
Instrument	170420000014
Transaction Type	Mortgage
Record Updated	May 02, 2017

Transaction

Tax	$0.00
Additional	Multiple Parcels

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Partnership
Address	3901 UNION BLVD #104A ST LOUIS MO 631151107, 104A, ST LOUIS, MO 63115-1107

Mortgage

Document Number	4200014
Date	Apr 20, 2017
Instrument	170420000014

Lender

Name	GREAT STHRN BK
Type	Bank
Address	1451 E BATTLEFIELD ST, SPRINGFIELD, MO 65804-3701

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

Source: St. Louis City records · Assessment roll updated June 16, 2026 · Last verified June 2026

Property Jurisdictions

Type	Name
State	Missouri
Municipality	St. Louis City
Unified School District	St. Louis City School District (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$1,260,300 (-) Land $529,500 Building $730,800
2025	$122,906.00 (+1.59%)	$1,260,300 (-) Land $529,500 Building $730,800	$3,938,400 (%) Land $1,654,700 Building $2,283,700
2023	$120,979.00 (-2.98%)	$1,260,300 (-) Land $529,500 Building $730,800	$3,938,438 (+212.5%) Land $1,654,688 Building $2,283,750
2022	$124,696.00	$1,260,300 Land $529,500 Building $730,800
2021			$1,260,300

Flood & Wildfire

Source: FEMA National Flood Hazard Layer · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Not on file

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 294 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Spectrum	Cable	1,000 / 1,000
Verizon	Fixed Wireless	300 / 20
T-Mobile USA	Fixed Wireless	100 / 20
AT&T	DSL	100 / 20
Starlink	Satellite (low-earth orbit)	280 / 30

May also be available at this address: AT&T, Spectrum. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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