Black Hawk County property record for 531 Sullivan Ave, Waterloo, IA 50701
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1.5 ba · 1,200 sqft · built 1906 |
| Lot Size | 0.144 acres (6,290 sqft) |
| Owner | Company Name on File |
| Last Sale | $24,000 (Mar 2013) |
| Tax Bill | $1,362 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8913-26-357-016 |
| Primary APN | 8913-26-357-016 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,200 sqft Living Area |
| 1st Floor Area | 528 sqft |
| Basement Area | 672 sqft |
| Flooring | Carpet |
| Interior Walls | Plaster |
| Year Built | Built 1906 |
|---|---|
| Effective Year Built | Effective 1906 |
| Exterior Material | Vinyl |
| Construction Type | Frame |
| Roof Type | Hip |
| Roof Material | Asphalt |
| Lot Area | 6,290 sqft (0.144 acres) |
| Lot Dimensions | 125 ft deep x 76 ft wide |
| Porch | Porch |
| Porch Area | 352 sqft |
| Total Buildings | 2 Buildings |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Street Address | 531 SULLIVAN AVE |
|---|---|
| City | WATERLOO |
| State | IA |
| Zip | 50701-2765 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | WHITNEY AND SEDGWICKS ADDITION COM AT S COR LOT 3 BLK 15 TH NE ON SE LINE LOT 3 114 FT TH NW AT RT ANGLES 30 FT TH W 70.37 FT |
| Legal Range | 13W |
| Legal Township | 89N |
| Legal Section | 26 |
| Legal Subdivision | WHITNEY AND SEDGWICKS ADDITION |
| Legal Block | 15 |
| Legal Lot Number | 3 |
| Jurisdiction | BLACK HAWK IA |
| Township / Civil Division | WATERLOO |
| Census Block Group | 1 |
| Census Block | 1026 |
| Census Tract | 300 |
531 Sullivan Ave is owned by a company that bought it in March 2013.
Source: Black Hawk County records, as of September 1, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 3702 LORALIN DR, WATERLOO, IA 50701-4814 |
| 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 |
|---|---|
| Last Sale | Mar 12, 2013 · Amount on File |
| Deed Sale | Mar 12, 2013 · Amount on File |
| Prior Sale | Jun 25, 2012 · Amount on File |
| Deed Document Number | 201318698 |
| Prior Transfer Date | Jan 31, 2006 |
| Prior Transfer Doc | 2006018993 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 531 Sullivan Ave was $1,362, up 8.1% 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 | $1,362.00 (+8.1%) | $66,770 Land $8,230 Building $58,540 | $66,770 Land $8,230 Building $58,540 |
| 2024 | $1,260.00 | ||
| 2023 | $58,110 (+23.69%) Land $8,230 Building $49,880 | $58,110 Land $8,230 Building $49,880 | |
| 2022 | $1,111.00 | $46,980 Land $8,230 Building $38,750 | |
| 2021 | $46,980 Land $8,230 Building $38,750 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 531 Sullivan 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 531 Sullivan 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 734 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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