511 Duff Ave, Ames, IA 50010 Property Records

Story County property record for 511 Duff Ave, Ames, IA 50010

Property Summary

Property Type	Office Building
Details	10,176 sqft · built 1984
Lot Size	0.481 acres (20,970 sqft)
Owner	Company Name on File
Tax Bill	$26,928 (2025)
Deeds & Mortgages	May 2018 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`09-02-377-045`

Property Details

APN / Parcel Number

Primary APN	`09-02-377-045`

Interior

Units	5 Units
Stories	3 Stories
Building Area	10,176 sqft Gross Area
1st Floor Area	3,392 sqft
Basement Area	3,392 sqft
Elevator	Elevator

Exterior

Year Built	Built 1984
Effective Year Built	Effective 1984
Exterior Material	Concrete Block
Construction Type	Concrete
Lot Area	20,970 sqft (0.481 acres)

Location & Zoning

Street Address	511 DUFF AVE
City	AMES
State	IA
Zip	50010-6391
Property Category	Commercial
Property Type	Commercial > Office > Office Building
Local Zoning Code	DSC
Legal Description	O T LOTS 3 & 4 BLK 7 EX BEG 79.8' W SE COR LOT 4 N19.6' W19.6' S19.6' E19.6' TO BEG & EX COMM 100' W SE COR LOT 4 N6' W40.9'
Legal Range	24W
Legal Township	83N
Legal Section	02
Legal Subdivision	ORIGINAL TOWN (AMES)
Legal Block	7
Legal Lot Number	3,4
Jurisdiction	STORY IA
Township / Civil Division	WASHINGTON
Census Block Group	4
Census Block	4021
Census Tract	900

Owner

Source: Story County assessment roll, as of September 30, 2025

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on File
Mailing Address	PO BOX 151, AMES, IA 50010-0151
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

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

May 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	STORY IA
Property Address	511 DUFF AVE, AMES, IA 50010-6391
Transaction Type	Mortgage
Record Updated	Nov 21, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0201804462
Date	May 25, 2018
Instrument	2018-04462

Lender

Name	LOIS STOLIZE

Agreement

Amount	Amount Recorded

Tax Assessment & Valuation

Source: Story County assessment roll, as of September 30, 2025

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$26,928.00	$1,232,500 (+17.46%) Land $335,500 Building $897,000	$1,232,500 (+17.46%) Land $335,500 Building $897,000
2024	$26,928.00 (+34.69%)
2023		$1,049,300 (+34.44%) Land $293,200 Building $756,100	$1,049,300 (+34.44%) Land $293,200 Building $756,100
2022	$19,992.00 (+3.66%)	$780,500 Land $293,200 Building $487,300
2021	$19,286.00		$780,500 Land $293,200 Building $487,300

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 May 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Claims	6 (1990–2010)
Most Recent Claim	Aug 2010 · Severe Storms, Flooding, And Tornadoes
Claims by Event	Severe Storms & Flooding, Jul 1993 · 3 claims

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; 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

Drinking Water

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

Water System	AMES WATER TREATMENT PLANT serves 55,177 people · EPA ID IA8503039
Water Source	Groundwater
Last State Inspection	Oct 2023
Lead	Under 1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 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 291 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Metronet Holdings Fiber	5,120 / 5,120
Mediacom Communications Cable · Fiber in parts of the area	1,000 / 50
Verizon Fixed Wireless	300 / 20
AT&T Fixed Wireless	100 / 20

May also be available: ICS Advanced Technologies, Lumen Technologies, T-Mobile USA.