421 S Thompson Ave, Sioux Falls, SD 57103 Property Records

Minnehaha County property record for 421 S Thompson Ave, Sioux Falls, SD 57103 · Last verified July 2026

Property Highlights

Property Type	Residential > Condominium / Townhouse > Townhouse
Bedrooms	2 Beds
Bathrooms	2.5 Baths
Year Built	Built 1979
Square Footage	1,608 sqft Finished Area
Lot Size	2,762 sqft (0.063 acres)
Garage	Attached, 252 sqft
Occupancy	Owner Occupied
Tax Bill	$2,071.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`01-22-14-353-019-000`
Alternative APN	`28370`

Interior

Bedrooms	2 Beds
Full Baths	2.5 Baths
Partial Baths	1 Partial Baths
Plumbing Fixtures	11 Plumbing Fixtures
Total Rooms	4 Rooms
Building Area	1,608 sqft Finished Area
1st Floor	678 sqft 1st Floor
Upper Floors	930 sqft Upper Floors
Stories	2 Stories
Primary Flooring	Carpet Flooring
Interior Structure	Wallboard/Drywall Interior Structure
Fireplace	Fireplace
Fireplaces	1 Fireplaces
Intercom System	Central Intercom System

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1979
Architectural Style	Townhouse Style
Exterior Material	Stucco Exterior
Construction Type	Frame Construction
Roof Construction	Flat Roof Construction
Roof Material	Gravel Roof
Lot Area	2,762 sqft (0.063 acres)
Depth X Width	29.8 ft x 30.5 ft Depth x Width
Parking Spaces	1 Parking Spaces
Garage Type	Attached Garage
Garage Area	252 sqft Garage
Deck Area	120 sqft Deck
Patio Area	120 sqft Patio

Utilities and HVAC

Cooling System	Central Cooling
Heating System	Forced Air with Air Conditioning Heating
Heating Fuel	Gas Heating Fuel
Sewage	Sewage Connected
Water Source	Yes (Unknown Type) Water Source

Location & Zoning

Account Number	28370
Street Address	421 S THOMPSON AVE
City	SIOUX FALLS
State	SD
Zip	57103-2016
Property Usage	Residential Property Usage
Type	Residential > Condominium / Townhouse > Townhouse
Legal Description	LOT 12 CONQUISTADOR TOWNHOME ADDN TO CITY OF SIOUX FALLS
Legal Subdivision	CONQUISTADOR TOWNHOME ADDN
Legal Lot Number	12
Jurisdiction	MINNEHAHA SD
Minor Civil Division	SIOUX FALLS
Census Blockgroup	2
Census Block	2009
Census Tract	406

Owner

Source: Minnehaha County records · APN 01-22-14-353-019-000

Assessment roll updated July 16, 2026 · Last verified July 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	421 S THOMPSON AVE, SIOUX FALLS, SD 57103-2016
Occupancy	Owner Occupied
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

Tax Assessment & Valuation

Source: Minnehaha County records · Assessment roll updated July 16, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	South Dakota
County	Minnehaha County
Municipality	Sioux Falls City
Unified School District	Sioux Falls School District 49-5 (PK - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes and is not a market price estimate.

Year	Tax Bill	Assessed Value
2025	$2,071.00 (+34.66%)	$156,500 (+9.21%) Land $4,000 Building $152,500
2024	$1,538.00 (-16%)	$143,300 (+14.82%) Land $4,000 Building $139,300
2022	$1,831.00	$124,800 Land $4,000 Building $120,800

Flood & Wildfire

421 S Thompson Ave is in FEMA Zone X, outside the Special Flood Hazard Area, with no wildfire exposure.

Flood

Source: FEMA National Flood Hazard Layer · Minnehaha County (46099C), updated May 2, 2024

FEMA Flood Zone	Zone X minimal flood hazard · outside the 0.2% annual chance floodplain
Special Flood Hazard Area	No

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire Risk to Homes	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach of burnable land

Values are read at the parcel center point; lenders make the official flood determination.