Black Hawk County property record for 923 W Mullan Ave, Waterloo, IA 50701
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,188 sqft · built 1916 |
| Lot Size | 0.133 acres (5,811 sqft) |
| Owner | Company Name on File |
| Tax Bill | $1,322 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8913-26-181-016 |
| Primary APN | 8913-26-181-016 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,188 sqft Living Area |
| 1st Floor Area | 528 sqft |
| Basement Area | 660 sqft |
| Flooring | Carpet |
| Interior Walls | Plaster |
| Year Built | Built 1916 |
|---|---|
| Effective Year Built | Effective 1916 |
| Exterior Material | Vinyl |
| Construction Type | Frame |
| Roof Type | Hip |
| Roof Material | Asphalt |
| Lot Area | 5,811 sqft (0.133 acres) |
| Lot Dimensions | 149 ft deep x 39 ft wide |
| Garage Type | Detached |
| Garage Area | 480 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Slab |
| Porch Area | 323 sqft |
| Patio Area | 380 sqft |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Street Address | 923 W MULLAN AVE |
|---|---|
| City | WATERLOO |
| State | IA |
| Zip | 50701-2664 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | WHITNEYS SUBDIVISION NE 26 FT LOT 9 BLK 14 SW 13 FT LOT 10 BLK 14 |
| Legal Range | 13W |
| Legal Township | 89N |
| Legal Section | 26 |
| Legal Subdivision | WHITNEYS SUBDIVISION |
| Legal Block | 14 |
| Legal Lot Number | 9,10 |
| Jurisdiction | BLACK HAWK IA |
| Township / Civil Division | WATERLOO |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 300 |
923 W Mullan Ave, a single family home, is owned by a company.
Source: Black Hawk County records, as of September 1, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 538, WATERLOO, IA 50704-0538 |
| Owner Type | Company |
| Vesting | Company |
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 |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 923 W Mullan Ave was $1,322, up 8.5% from the year before.
Source: Black Hawk County assessment roll, as of October 17, 2025
| Type | Name |
|---|---|
| State | Iowa |
| County | Black Hawk County |
| Municipality | Waterloo City |
| Unified School District | Waterloo Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,322.00 (+8.54%) | $64,730 Land $5,970 Building $58,760 | $64,730 Land $5,970 Building $58,760 |
| 2024 | $1,218.00 | ||
| 2023 | $52,500 (+22.43%) Land $5,970 Building $46,530 | $52,500 Land $5,970 Building $46,530 | |
| 2022 | $942.00 | $42,880 Land $5,970 Building $36,910 | |
| 2021 | $42,880 Land $5,970 Building $36,910 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 923 W Mullan Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 27, 2026
| 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 923 W Mullan Ave 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 | WATERLOO WATER WORKS serves 69,504 people · EPA ID IA0790074 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Nov 2023 |
| Lead | 2 ppb (2025) 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 416 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Waterloo Fiber Fiber | 10,000 / 10,000 |
| Metronet Fiber | 5,120 / 5,120 |
| Mediacom Xtream Cable · Fiber in parts of the area | 1,000 / 50 |
May also be available: GigFire, Nextlink, T-Mobile, Verizon.
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