500 Main St, Dubuque, IA 52001 Property Records

Dubuque County property record for 500 Main St, Dubuque, IA 52001

Property Summary

Property Type	Office Building
Details	114,954 sqft · built 2000
Lot Size	0.906 acres (39,470 sqft)
Owner	Company Name on Record
Last Sale	$4,400,000 (Feb 2025)
Tax Bill	$157,358 (2024)
Flood Zone	Zone X (minimal risk)
APN	`10-25-231-002`

Property Details

APN / Parcel Number

Primary APN	`10-25-231-002`

Interior

Stories	3 Stories
Building Area	114,954 sqft Gross Area
Gross Area	113,872 sqft
1st Floor Area	36,084 sqft
Basement Area	22,648 sqft
Overhead Door	Overhead Door
Elevator	Elevator

Exterior

Year Built	Built 2000
Exterior Material	Brick
Roof Material	Urethane Foam
Lot Area	39,470 sqft (0.906 acres)

Utilities, Heating & Cooling

Water Source	Commercial

Location & Zoning

Street Address	500 MAIN ST
City	DUBUQUE
State	IA
Zip	52001-6836
Property Category	Commercial
Property Type	Commercial > Office > Office Building
Local Zoning Code	CI
Legal Description	BLK 13 LOT 1 DUBUQUE DOWNTOWN PLAZA
Legal Subdivision	DUBUQUE DOWNTOWN PLAZA
Legal Block	13
Legal Lot Number	1
Jurisdiction	DUBUQUE IA
Township / Civil Division	DUBUQUE
Census Block Group	2
Census Block	2002
Census Tract	100

Owner

Source: Dubuque County records, as of October 6, 2025

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Company Name on Record
Mailing Address	2000 UNIVERSITY AVE, DUBUQUE, IA 52001-5050
Owner Type	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Feb 3, 2025 · Amount on Record
Deed Sale	Feb 3, 2025 · Amount on Record
Deed Document Number	2025-00001113
Record Updated	Jun 8, 2026

Tax Assessment & Valuation

Source: Dubuque County assessment roll, as of May 1, 2025

Property Jurisdictions

Type	Name
State	Iowa
County	Dubuque County
Municipality	Dubuque City
Unified School District	Dubuque Community School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$4,355,600 (-35.65%) Land $532,800 Building $3,822,800	$4,355,600 (-35.65%) Land $532,800 Building $3,822,800
2024	$157,358.00 (-40.4%)
2023		$6,769,000 (-27.66%) Land $473,600 Building $6,295,400	$6,769,000 (-27.66%) Land $473,600 Building $6,295,400
2022	$264,036.00	$9,356,840 Land $473,640 Building $8,883,200
2021			$9,356,840 Land $473,640 Building $8,883,200

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

Flood

Source: FEMA National Flood Hazard Layer, effective August 9, 2021

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

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

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	DUBUQUE WATER WORKS serves 59,667 people · EPA ID IA3126052
Water Source	Groundwater
Last State Inspection	Jan 2025
Lead	5 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 497 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Mediacom Xtream Cable · Fiber in parts of the area	1,000 / 50
CenturyLink DSL · Fiber in parts of the area	140 / 20
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Comelec Internet Services, ImOn Communications, Nextlink, Verizon.