420 Alpine Way, Boulder, CO 80304 Property Records

Boulder County property record for 420 Alpine Way, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.75 ba · 2,720 sqft · built 1971
Lot Size	0.857 acres (37,329 sqft)
Owner	2 Individual Names on File
Last Sale	$450,000 (Sep 2011)
Tax Bill	$6,403 (2025)
Deeds & Mortgages	Mar 2022 Mortgage Jun 2021 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`1461-15-0-05-001`

Property Details

APN / Parcel Number

Primary APN	`1461-15-0-05-001`
Alternative APNs	`R0034947` `0034947`

Interior

Bedrooms	4 Beds
Full Baths	2.75 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	1 Story
Building Area	2,720 sqft Living Area
1st Floor Area	1,472 sqft
Basement Area	1,248 sqft
Finished Basement	1,248 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1971
Effective Year Built	Effective 1980
Architectural Style	Ranch
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	37,329 sqft (0.857 acres)
Deck Area	168 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0034947
Street Address	420 ALPINE WAY
City	BOULDER
State	CO
Zip	80304-0407
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	F
Legal Description	LOT 354 PINE BROOK HILLS 7
Legal Range	71
Legal Township	1N
Legal Section	23
Legal Subdivision	PINE BROOK HILLS 7
Legal Block	2
Legal Lot Number	354
Jurisdiction	BOULDER CO
Township / Civil Division	BALD MOUNTAIN
Census Block Group	2
Census Block	2008
Census Tract	13704

Owner

420 Alpine Way is owned and occupied by two individuals who bought it in September 2011.

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

Owner of Record	2 Individual Names on File
Mailing Address	420 ALPINE WAY, BOULDER, CO 80304-0407
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
Mar 9, 2022	Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA
Jun 30, 2021	Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA
Jul 19, 2018	Deed of Trust, Mortgage · Line of Credit WELLS FARGO BANK NA
Apr 13, 2020	Deed of Trust, Mortgage · Line of Credit WELLS FARGO BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 13, 2011 · Amount on File
Deed Sale	Sep 13, 2011 · Amount on File
Prior Sale	Feb 9, 1978 · Amount on File
Deed Document Number	20113170537
Prior Transfer Date	Jan 26, 1996
Prior Transfer Doc	0001581626
Record Updated	Oct 29, 2026

March 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	420 ALPINE WAY, BOULDER, CO 80304-0407
Transaction Type	Mortgage
Record Updated	Mar 28, 2022
Title Company	LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003949811
Date	Mar 9, 2022
Instrument	3949811

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Apr 1, 2052

June 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	420 ALPINE WAY, BOULDER, CO 80304-0407
Transaction Type	Mortgage
Record Updated	Jul 14, 2021
Title Company	LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003896667
Date	Jun 30, 2021
Instrument	3896667

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	241 Months
Due	Jul 1, 2041

July 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	420 ALPINE WAY, BOULDER, CO 80304-0407
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	AMERICAN TITLE INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003666646
Date	Jul 19, 2018
Instrument	3666646

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	57810

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	361 Months
Due	Aug 1, 2048

Interest

Rate Type	Adjustable Rate

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	420 ALPINE WAY, BOULDER, CO 80304-0407
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	TITLE365

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003777097
Date	Apr 13, 2020
Instrument	3777097

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	360 Months
Due	Apr 27, 2050

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

Tax Assessment & Valuation

The 2025 property tax bill for 420 Alpine Way was $6,403.

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$66,667 (+1.55%) Land $13,471 Building $53,196	$1,050,400 (-) Land $268,100 Building $782,300
2025	$6,403.00	$65,650 Land $16,756 Building $48,894	$1,050,400 Land $268,100 Building $782,300
2023	$6,261.00 (+24.45%)	$74,671 (+43.1%) Land $16,837 Building $57,834	$1,114,500 (+48.44%) Land $251,300 Building $863,200
2022	$5,031.00	$52,181 Land $13,553 Building $38,628	$750,800 Land $195,000 Building $555,800

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 420 Alpine Way in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2013.

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
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	6 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

Wildfire risk around 420 Alpine Way is very high, ranking above 94% of the US, with a 1% annual chance of wildfire.

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

Wildfire Risk	Very High above 94% of the US · above 97.8% of Colorado
Wildfire Likelihood	1% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.

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	PINE BROOK HILLS WD serves 1,100 people · EPA ID CO0107610
Water Source	Surface water
Last State Inspection	Dec 2022
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	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 21 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Ayva Networks Fixed Wireless	2,500 / 2,500
Xfinity Cable	1,200 / 35

May also be available: LiveWireNet, T-Mobile, Visionary Broadband.

Cell Coverage

5G and 4G LTE (outdoors only)

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