321 Oak Ave, Waterloo, IA 50703 Property Records

Black Hawk County property record for 321 Oak Ave, Waterloo, IA 50703 · Last verified June 2026

Property Highlights

Property Type	Residential > Multi-Unit > Quadplex
Bedrooms	4 Beds
Bathrooms	5.5 Baths
Architecture Style	Quadruplex
Year Built	Built 1912
Square Footage	1,965 sqft Total Area
Lot Size	7,500 sqft (0.172 acres)
Tax Bill	$1,016.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`8913-23-427-004`

Interior

Bedrooms	4 Beds
Full Baths	5.5 Baths
Partial Baths	3 Partial Baths
Total Rooms	8 Rooms
Units	4 Units
Building Area	1,965 sqft Total Area
1st Floor	896 sqft 1st Floor
Basement Area	916 sqft Basement
Unfinished Basement	916 sqft Unfinished
Game Room	Game Room
Stories	2 Stories
Primary Flooring	Carpet Flooring
Interior Structure	Plaster Interior Structure

Exterior

Year Built	Built 1912
Effective Year Built	Effective 1912
Architectural Style	Quadruplex Style
Exterior Material	Wood Siding Exterior
Construction Type	Frame Construction
Roof Construction	Hip Roof Construction
Roof Material	Asphalt Roof
Lot Area	7,500 sqft (0.172 acres)
Depth X Width	150 ft x 50 ft Depth x Width
Porch	1 Porch
Porch Area	112 sqft Porch

Utilities and HVAC

Cooling System	None Cooling
Heating System	HVAC Heating

Location & Zoning

Street Address	321 OAK AVE
City	WATERLOO
State	IA
Zip	50703-3400
Property Usage	Residential Property Usage
Type	Residential > Multi-Unit > Quadplex
Legal Description	URIAH DU BOIS ADDITION LOT 6
Legal Range	13W
Legal Township	89N
Legal Section	23
Legal Subdivision	URIAH DU BOIS ADDITION
Legal Lot Number	6
Jurisdiction	BLACK HAWK IA
Minor Civil Division	WATERLOO
Census Blockgroup	1
Census Block	1029
Census Tract	100

Owner

Source: Black Hawk County records · APN 8913-23-427-004

Assessment roll updated October 17, 2025 · 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	Individual Name on File
Mailing Address	321 OAK AVE, 4, WATERLOO, IA 50703-3400
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

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

January 2021: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BLACK HAWK IA
Recording Date	Jan 20, 2021
Property Address	321 OAK AVE, WATERLOO, IA 50703-3400
Document Number	202100015278
Instrument Date	Jan 19, 2021
Instrument	202100015278
Transaction Type	Transfer
Record Updated	Nov 17, 2022

Transaction

Tax	$0.00
Amount Accuracy	Zero or No Consideration Stated
Additional	Quitclaim Document Interfamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3 21 OAK AVE #4 # 4, 4, WATERLOO, IA 50703

Tax Assessment & Valuation

Source: Black Hawk County records · Assessment roll updated October 17, 2025 · Last verified June 2026

Property Jurisdictions

Type	Name
State	Iowa
County	Black Hawk County
Municipality	Waterloo City
Unified School District	Waterloo Community 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
2025	$1,016.00	$58,410 (+24.65%) Land $8,930 Building $49,480	$58,410 (+24.65%) Land $8,930 Building $49,480
2024	$1,016.00 (+3.89%)
2023		$46,860 (+66.17%) Land $8,930 Building $37,930	$46,860 (+66.17%) Land $8,930 Building $37,930
2022	$978.00	$28,200 Land $3,830 Building $24,370
2021			$28,200 Land $3,830 Building $24,370

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Black Hawk County (19013C), updated September 27, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Flood Hazard	Reduced by levee depends on levee performance
500-Year Floodplain	No
Special Flood Hazard Area	No

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.