3521 E 21st St, Casper, WY 82609 Property Records

Natrona County property record for 3521 E 21st St, Casper, WY 82609

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,663 sqft · built 1979
Lot Size	0.207 acres (9,000 sqft)
Owner	Individual Name on Record
Tax Bill	$1,536 (2026)
Deeds & Mortgages	Mar 2026 Transfer Jun 2025 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`3379-14-12-0-00400`

Property Details

APN / Parcel Number

Primary APN	`3379-14-12-0-00400`
Alternative APNs	`07394002000300` `R0021275`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,663 sqft Living Area
Basement Area	780 sqft
Unfinished Basement	754 sqft
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1989
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable/Hip
Roof Material	Composition Shingle
Lot Area	9,000 sqft (0.207 acres)
Garage Type	Mixed
Garage Area	588 sqft
Parking Spaces	2 Parking Spaces
Porch	Slab
Deck Area	165 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0021275
Street Address	3521 E 21ST ST
City	CASPER
State	WY
Zip	82609-3507
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	PRATT #3 BLK 2 LOT 3
Legal Range	79W
Legal Township	33N
Legal Section	14
Legal Subdivision	PRATT #3
Legal Block	2
Legal Lot Number	3
Jurisdiction	NATRONA WY
Township / Civil Division	CASPER
Census Block Group	4
Census Block	4033
Census Tract	501

Owner

Source: Natrona County records, as of September 29, 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 Record
Mailing Address	3521 E 21ST ST, CASPER, WY 82609-3507
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Mar 26, 2026	Transfer on Death Deed, Transfer
Jun 20, 2025	Transfer on Death Deed, Transfer
Aug 24, 2020	Quit Claim Deed, Transfer NOT AVAILABLE
Sep 5, 2018	Affidavit of Death, Transfer AMERICAN TITLE COMPANY

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Mar 26, 2026
Transfer Doc	0001185222
Record Updated	Oct 29, 2026

March 2026: Transfer on Death Deed, Transfer

Document Type	Transfer on Death Deed
Jurisdiction	NATRONA WY
Recording Date	Mar 26, 2026
Property Address	3521 E 21ST ST, CASPER, WY 82609-3507
Document Number	0001185222
Instrument Date	Mar 26, 2026
Instrument	1185222
Transaction Type	Transfer
Record Updated	Apr 10, 2026

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common

June 2025: Transfer on Death Deed, Transfer

Document Type	Transfer on Death Deed
Jurisdiction	NATRONA WY
Recording Date	Jun 20, 2025
Property Address	3521 E 21ST ST, CASPER, WY 82609-3507
Document Number	0001172729
Instrument Date	Apr 4, 2025
Instrument	1172729
Transaction Type	Transfer
Record Updated	Jan 19, 2026

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship

August 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	NATRONA WY
Recording Date	Aug 24, 2020
Property Address	3521 E 21ST ST, CASPER, WY 82609-3507
Document Number	0001087588
Instrument Date	Aug 24, 2020
Instrument	1087588
Transaction Type	Transfer
Record Updated	Sep 29, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3521 E 21ST ST CASPER WY 826093507, CASPER, WY 82609-3507

September 2018: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	NATRONA WY
Recording Date	Sep 5, 2018
Property Address	3521 E 21ST ST, CASPER, WY 82609-3507
Document Number	0001052793
Instrument Date	Aug 7, 2018
Instrument	1052793
Transaction Type	Transfer
Record Updated	Sep 21, 2018
Title Company	AMERICAN TITLE COMPANY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3521 E 21ST ST CASPER WY 826093507, CASPER, WY 82609-3507

Tax Assessment & Valuation

Source: Natrona County assessment roll, as of July 7, 2026

Property Jurisdictions

Type	Name
State	Wyoming
County	Natrona County
Municipality	Casper City
Unified School District	Natrona County School District 1 (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$1,536.00 (-0.07%)	$21,088 (+3.28%) Land $2,974 Building $18,114	$461,194 (+6.77%) Land $62,606 Building $398,588
2025	$1,537.00 (+4.84%)	$20,418 (-48.09%) Land $3,001 Building $17,417	$431,964 (+4.32%) Land $65,284 Building $366,680
2024	$1,466.00 (-48.87%)
2023		$39,335 Land $5,121 Building $34,214	$414,059 Land $53,910 Building $360,149
2022	$2,867.00

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 January 2, 2020 · 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
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	1 in force

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	Moderate above 48% of the US · lower than 69% of Wyoming
Wildfire Likelihood	0.06% annual chance
Exposure	None beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

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

Water System	CITY OF CASPER serves 59,000 people · EPA ID WY5601415
Water Source	Purchased surface water from CENTRAL WY REGIONAL WATER SYSTEM JPB
Last State Inspection	Jun 2022
Lead	1 ppb (2024–2026) action level 15 ppb

Violations Reported to EPA

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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 499 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Bluepeak Fiber	5,000 / 5,000
Visionary Broadband Fiber · Fixed Wireless	5,000 / 5,000
Spectrum Cable	1,000 / 1,000
Mountain West Technologies Fixed Wireless · Fiber in parts of the area	125 / 25
AT&T Fixed Wireless	100 / 20

May also be available: Verizon.

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