309 S 3rd Ave, Superior (Louisville), CO 80027 Property Records

Boulder County property record for 309 S 3rd Ave, Superior, CO 80027

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 3,599 sqft · built 2022
Lot Size	0.213 acres (9,278 sqft)
Owner	2 Individual Names on Record
Last Sale	$236,550 (Mar 2019)
Tax Bill	$8,456 (2025)
Deeds & Mortgages	Apr 2026 Line of Credit Mar 2021 Construction Loan + 4 more
Flood Zone	Zone X (moderate risk)
APN	`1577-24-0-36-004`

Property Details

APN / Parcel Number

Primary APN	`1577-24-0-36-004`
Alternative APN	`R0610217`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Half Baths	3 Half Baths
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	3,599 sqft Living Area
Gross Area	3,938 sqft
1st Floor Area	1,694 sqft
Upper Floors Area	550 sqft
Basement Area	1,694 sqft
Finished Basement	1,355 sqft
Unfinished Basement	339 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 2022
Effective Year Built	Effective 2022
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	9,278 sqft (0.213 acres)
Garage Type	Detached
Garage Area	754 sqft

Exterior Amenities

Porch	Porch
Porch Area	100 sqft
Deck Area	100 sqft
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0610217
Street Address	309 S 3RD AVE
City	SUPERIOR
State	CO
Zip	80027-9603
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 5A REPLAT A OF BLK L LANGGEGERS ADDITION & BLK M SOUTH ADDITION SUPERIOR
Legal Range	70
Legal Township	1S
Legal Section	24
Legal Subdivision	SUPERIOR LANGGEGERS ADD REPLAT A
Legal Block	L,M
Legal Lot Number	5A
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1050
Census Tract	60602

Owner

Source: Boulder County records, as of September 18, 2026

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

Owner of Record	2 Individual Names on Record
Mailing Address	309 S 3RD AVE, SUPERIOR, CO 80027-9603
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Apr 6, 2026	Deed of Trust, Mortgage · Line of Credit FIRST WESTERN TRUST BANK
Mar 16, 2021	Deed of Trust, Mortgage · Construction Mortgage US BANK NA
Apr 12, 2021	Deed of Trust, Mortgage · Conventional Mortgage GUILD MORTGAGE CO
Jul 5, 2023	Deed of Trust, Mortgage · Stand-Alone Second Mortgage IMPACT DEVELOPMENT FUND
Jan 2, 2024	Deed of Trust, Mortgage · Line of Credit SOOPER CU
Mar 14, 2019	Grant Deed, Transfer LAND TITLE GUARANTEE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 14, 2019 · Amount on Record
Deed Sale	Mar 14, 2019 · Amount on Record
Deed Document Number	20193702311
Record Updated	Oct 29, 2026

April 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Recording Date	Apr 6, 2026
Property Address	309 S 3RD AVE, SUPERIOR, CO 80027-9603
Document Number	0004126742
Instrument Date	Mar 31, 2026
Instrument	20264126742
Transaction Type	Mortgage
Record Updated	Jul 12, 2026
Title Company	NONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	309 S 3RD AVE, SUPERIOR, CO 80027-9603

Mortgage

Document Number	0004126742,
Date	Apr 6, 2026
Instrument	20264126742

Lender

Name	FIRST WESTERN TRUST BANK

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Rate	6%
Initial Type	Adjustable Rate
Adjustable	Adjustable Rate Rider
Max Rate	-1%

March 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	309 S 3RD AVE, LOUISVILLE, CO 80027
Transaction Type	Mortgage
Record Updated	Feb 9, 2026
Title Company	FIRST AMERICAN TITLE INSURANCE COMPANY NC, FIRST AMERICAN TITLE INS CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003867753
Date	Mar 16, 2021
Instrument	3867753

Lender

Name	US BANK NA
Type	Bank
Address	OWENSBORO, KY 42301

Agreement

Type	Construction Mortgage
Amount	Amount Recorded
Term	353 Months
Due	Aug 1, 2050

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	309 S 3RD AVE, LOUISVILLE, CO 80027
Transaction Type	Mortgage
Record Updated	Feb 9, 2026
Title Company	FIRST AMERICAN TITLE INSURANCE COMPANY NC, FIRST AMERICAN TITLE INS CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003875839
Date	Apr 12, 2021
Instrument	3875839

Lender

Name	GUILD MORTGAGE CO
Type	Mortgage Company
Address	SAN DIEGO, CA 92111

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 1, 2051

July 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	309 S 3RD AVE, LOUISVILLE, CO 80027
Transaction Type	Mortgage
Record Updated	Feb 9, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	309 S 3RD AVE, LOUISVILLE, CO 80027

Mortgage

Document Number	0004013110
Date	Jul 5, 2023
Instrument	4013110

Lender

Name	IMPACT DEVELOPMENT FUND
Type	Mortgage Company
Address	LOVELAND, CO 80537

Agreement

Type	Stand-Alone Second Mortgage
Amount	Amount Recorded
Term	359 Months
Due	Jun 6, 2053

January 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	309 S 3RD AVE, LOUISVILLE, CO 80027
Transaction Type	Mortgage
Record Updated	Feb 9, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	309 S 3RD AVE, LOUISVILLE, CO 80027

Mortgage

Document Number	0004032733
Date	Jan 2, 2024
Instrument	4032733

Lender

Name	SOOPER CU
Type	Credit Union
Address	ARVADA, CO 80003

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	299 Months
Due	Dec 28, 2048

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

March 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	Mar 14, 2019
Property Address	309 S 3RD AVE, LOUISVILLE, CO 80027
Document Number	0003702311
Instrument Date	Mar 14, 2019
Instrument	3702311
Transaction Type	Transfer
Record Updated	Mar 25, 2019
Title Company	LAND TITLE GUARANTEE

Transaction

Amount	Amount Recorded
Tax	$23.66
Amount Accuracy	Confirmed
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
Address	209 8TH AVE SUPERIOR CO 800279624, SUPERIOR, CO 80027-9624

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of September 18, 2026

Property Jurisdictions

Type	Name
State	Colorado
County	Boulder County
Municipality	Superior Town
Unified School District	Boulder Valley School District RE-2 (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$78,044 (+2.55%) Land $25,997 Building $52,047	$1,217,700 (-) Land $452,300 Building $765,400
2025	$8,456.00 (+5.49%)	$76,107 (+35.42%) Land $28,269 Building $47,838	$1,217,700 (+45.17%) Land $452,300 Building $765,400
2024	$8,016.00 (+49.39%)
2023	$5,366.00 (+697.33%)	$56,201 (+781.86%) Land $18,036 Building $38,165	$838,825 (+814.75%) Land $269,200 Building $569,625
2022	$673.00	$6,373 Land $6,373	$91,700 Land $91,700

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	3 in force
Nearby Flood Claims	1 (2013)
Most Recent Claim	Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides

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	High above 79% of the US · above 81% of Colorado
Wildfire Likelihood	0.5% annual chance
Exposure	Direct burnable vegetation

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	SUPERIOR MD NO 1 serves 17,900 people · EPA ID CO0107725
Water Source	Surface water
Last State Inspection	Feb 2025
Lead	Under 1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	Treatment failure resolved · Dec 2021
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 126 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable · Fiber in parts of the area	2,000 / 2,000
T-Mobile Fixed Wireless	100 / 20

May also be available: CenturyLink, LiveWireNet.

Nearby Properties on S 3rd Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures