Dubuque County property record for 300 Main St, #3, Dubuque, IA 52001
| Property Type | Office Building |
|---|---|
| Details | 1,413 sqft · built 2001 |
| Lot Size | 0.167 acres (7,287 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $191,000 (Feb 2014) |
| Tax Bill | $6,788 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-25-241-019 |
| Primary APN | 10-25-241-019 |
|---|
| Stories | 1 Story |
|---|---|
| Building Area | 1,413 sqft Gross Area |
| 1st Floor Area | 1,413 sqft |
| Elevator | Elevator |
| Year Built | Built 2001 |
|---|---|
| Exterior Material | Brick |
| Roof Material | Urethane Foam |
| Lot Area | 7,287 sqft (0.167 acres) |
| Porch | Porch |
| Patio Area | 3 sqft |
| Water Source | Commercial |
|---|
| Street Address | 300 MAIN ST # 3, 3 |
|---|---|
| City | DUBUQUE |
| State | IA |
| Zip | 52001-6909 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Office Building |
| Local Zoning Code | CI |
| Legal Description | UNIT #3 OF THIRD AND MAIN CONDO LOCATED ON LOT 2 HARBOR VIEW PLACE |
| Legal Subdivision | HARBOR VIEW PLACE |
| Legal Lot Number | 2 |
| Jurisdiction | DUBUQUE IA |
| Township / Civil Division | DUBUQUE |
| Census Block Group | 2 |
| Census Block | 2018 |
| Census Tract | 100 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Old Main Historic District listed 1983 · 30 contributing resources · NRIS 83000356 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
300 Main St, #3 is owned and occupied by two individuals who bought it in February 2014.
Source: Dubuque County records, as of October 6, 2025
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 300 MAIN ST STE 120, 120, DUBUQUE, IA 52001-6946 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 14, 2014 · Amount on File |
| Deed Sale | Feb 14, 2014 · Amount on File |
| Deed Document Number | 0000141571 |
| Record Updated | Jun 8, 2026 |
Source: Dubuque County assessment roll, as of May 1, 2025
| Type | Name |
|---|---|
| State | Iowa |
| County | Dubuque County |
| Municipality | Dubuque City |
| Unified School District | Dubuque Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $339,200 Land $8,400 Building $330,800 | $339,200 Land $8,400 Building $330,800 | |
| 2024 | $6,788.00 | ||
| 2023 | $298,800 Land $7,300 Building $291,500 | $298,800 Land $7,300 Building $291,500 | |
| 2022 | $5,618.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 300 Main St, #3 in Zone X, an area of minimal flood risk.
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.
The area around 300 Main St, #3 has no burnable land within ember reach, so its wildfire risk is not rated.
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.
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 |
| 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.
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.
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