321 Antero Pl, Superior (Louisville), CO 80027 Property Records

Boulder County property record for 321 Antero Pl, Superior, CO 80027

Property Summary

Property Type	Single Family Home
Details	3 bd · 3.25 ba · 3,257 sqft · built 2018
Lot Size	0.171 acres (7,433 sqft)
Owner	2 Individual Names on File
Last Sale	$1,195,811 (Dec 2018)
Tax Bill	$12,166 (2025)
Deeds & Mortgages	May 2022 Mortgage Jul 2019 Line of Credit + 3 more
Flood Zone	Zone X (minimal risk)
APN	`1575-31-2-28-008`

Property Details

APN / Parcel Number

Primary APN	`1575-31-2-28-008`
Alternative APN	`R0606803`

Interior

Bedrooms	3 Beds
Full Baths	3.25 Baths
Half Baths	2 Half Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	3,257 sqft Living Area
Gross Area	4,747 sqft
1st Floor Area	2,167 sqft
Basement Area	1,934 sqft
Finished Basement	1,090 sqft
Unfinished Basement	844 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 2018
Effective Year Built	Effective 2018
Architectural Style	Ranch
Exterior Material	Combination
Construction Type	Frame
Roof Material	Concrete
Lot Area	7,433 sqft (0.171 acres)
Garage Type	Attached
Garage Area	646 sqft
Parking Spaces	2 Parking Spaces
Patio Area	384 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0606803
Street Address	321 ANTERO PL
City	SUPERIOR
State	CO
Zip	80027-8689
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 8 BLOCK 2 CALMANTE II FINAL REPLAT
Legal Range	69
Legal Township	1S
Legal Section	31
Legal Subdivision	CALMANTE II FINAL REPLAT
Legal Block	2
Legal Lot Number	8
Jurisdiction	BOULDER CO
Township / Civil Division	LAFAYETTE-LOUISVILLE
Census Block Group	2
Census Block	2010
Census Tract	61400

Owner

321 Antero Pl is owned and occupied by two individuals who bought it in December 2018.

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

Owner of Record	2 Individual Names on File
Mailing Address	321 ANTERO PL, SUPERIOR, CO 80027-8689
Occupancy	Owner Occupied
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
May 5, 2022	Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA
Jul 24, 2019	Deed of Trust, Mortgage · Line of Credit JPMORGAN CHASE BANK NA
Dec 7, 2018	Special Warranty Deed, Transfer · Conventional Mortgage JPMORGAN CHASE BANK NA
Dec 21, 2017	Grant Deed, Mortgage · Line of Credit HOUSING CAP
Apr 21, 2017	Grant Deed, Mortgage · Line of Credit HOUSING CAP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 7, 2018 · Amount on File
Deed Sale	Dec 7, 2018 · Amount on File
Deed Document Number	20183689163
Record Updated	Oct 29, 2026

May 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	321 ANTERO PL, SUPERIOR, CO 80027-8689
Transaction Type	Mortgage
Record Updated	Feb 9, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003960390
Date	May 5, 2022
Instrument	3960390

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	May 1, 2052

July 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	321 ANTERO PL, SUPERIOR, CO 80027-8689
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003725862
Date	Jul 24, 2019
Instrument	3725862

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	361 Months
Due	Aug 1, 2049

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

December 2018: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Dec 7, 2018
Property Address	321 ANTERO PL, SUPERIOR, CO 80027-8689
Document Number	0003689163
Instrument Date	Dec 6, 2018
Instrument	3689163
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	LAND TITLE GUARANTEE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$119.58
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	321 ANTERO PL, SUPERIOR, CO 80027-8689

Mortgage

Document Number	0003689164
Date	Dec 7, 2018
Instrument	3689164

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jan 1, 2049

December 2017: Grant Deed, Mortgage

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	Dec 21, 2017
Property Address	321 ANTERO PL, SUPERIOR, CO 80027-8689
Instrument Date	Dec 20, 2017
Instrument	3632232
Transaction Type	Mortgage
Record Updated	Jan 3, 2018
Title Company	LAND TITLE GUARANTEE

Transaction

Tax	$0.00
Additional	Multiple Parcels

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	841 FRONT ST LOUISVILLE CO 800271849, LOUISVILLE, CO 80027-1849

Mortgage

Document Number	0003632232
Date	Dec 21, 2017
Instrument	3632232

Lender

Name	HOUSING CAP
Type	Funding / Finance Company
Address	265 E RIVER PARK CIR # 460, FRESNO, CA 93720-1581

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	24 Months
Due	Dec 20, 2019

Interest

Rate Type	Adjustable Rate

April 2017: Grant Deed, Mortgage

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	Apr 21, 2017
Property Address	321 ANTERO PL, SUPERIOR, CO 80027-8689
Instrument Date	Apr 21, 2017
Instrument	3588127
Transaction Type	Mortgage
Record Updated	May 4, 2017
Title Company	LAND TITLE GUARANTEE

Transaction

Tax	$0.00
Additional	Multiple Parcels

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	841 FRONT ST LOUISVILLE CO 800271849, LOUISVILLE, CO 80027-1849

Mortgage

Document Number	0003588127
Date	Apr 21, 2017
Instrument	3588127

Lender

Name	HOUSING CAP
Type	Funding / Finance Company
Address	265 E RIVER PARK CIR # 460, FRESNO, CA 93720-1581

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	24 Months
Due	Apr 20, 2019

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

The 2025 property tax bill for 321 Antero Pl was $12,166.

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		$114,362 (+4.45%) Land $20,257 Building $94,105	$1,751,800 (-) Land $367,900 Building $1,383,900
2025	$12,166.00	$109,488 Land $22,994 Building $86,494	$1,751,800 Land $367,900 Building $1,383,900
2023	$11,611.00 (+23.12%)	$117,304 (+30.09%) Land $23,269 Building $94,035	$1,750,800 (+34.95%) Land $347,300 Building $1,403,500
2022	$9,431.00	$90,169 Land $19,425 Building $70,744	$1,297,400 Land $279,500 Building $1,017,900

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 321 Antero Pl in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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 minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	7 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

Wildfire risk around 321 Antero Pl is high, ranking above 74% of the US, with a 0.4% annual chance of wildfire.

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

Wildfire Risk	High above 74% of the US · above 72% of Colorado
Wildfire Likelihood	0.4% 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 9 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Verizon Fixed Wireless	300 / 20

May also be available: LiveWireNet.

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