6171 Flagstaff Rd, Boulder, CO 80302 Property Records

Boulder County property record for 6171 Flagstaff Rd, Boulder, CO 80302

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 2,910 sqft · built 1989
Lot Size	9.6 acres (418,534 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,022,000 (Jul 2021)
Tax Bill	$10,642 (2025)
Deeds & Mortgages	Jul 2021 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1579-10-0-00-044`

Property Details

APN / Parcel Number

Primary APN	`1579-10-0-00-044`
Alternative APNs	`R0103828` `0103828`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	2 Half Baths
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,910 sqft Living Area
1st Floor Area	1,482 sqft
Upper Floors Area	1,428 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1989
Effective Year Built	Effective 1989
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	418,534 sqft
Garage Type	Detached
Garage Area	550 sqft
Deck Area	864 sqft
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Heating System	Hot Water

Location & Zoning

Account Number	R0103828
Street Address	6171 FLAGSTAFF RD
City	BOULDER
State	CO
Zip	80302-9581
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	F
Legal Description	TR M-1 10-1S-71 10 ACS M/L PER DEED 2148756 05/11/01 BCR SPLIT FROM ID 23981
Legal Range	71
Legal Township	1S
Legal Section	10
Legal Subdivision	TR, NBR 910 WALKER RANCH AREA
Legal Tract	M-1
Legal Block	4
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	4
Census Block	4009
Census Tract	12510

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic District	Within the Walker Ranch Historic District listed 1984 · 23 contributing resources · NRIS 84000798

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

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	6171 FLAGSTAFF RD, BOULDER, CO 80302-9581
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 26, 2021 · Amount on Record
Deed Sale	Jul 26, 2021 · Amount on Record
Prior Sale	Feb 11, 1986 · Amount on Record
Deed Document Number	20213902256
Prior Transfer Date	May 8, 2001
Prior Transfer Doc	0002148756
Record Updated	Oct 29, 2026

July 2021: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jul 26, 2021
Property Address	6171 FLAGSTAFF RD, BOULDER, CO 80302-9581
Document Number	0003902256
Instrument Date	Jul 23, 2021
Instrument	3902256
Transaction Type	Transfer
Record Updated	Aug 4, 2021
Title Company	HERITAGE TITLE COMPANY, HERITAGE TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$202.20
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	6171 FLAGSTAFF RD, BOULDER, CO 80302-9581

Mortgage

Document Number	0003902257
Date	Jul 26, 2021
Instrument	3902257

Lender

Name	FLATIRONS BANK
Type	Bank

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jul 23, 2051

Tax Assessment & Valuation

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		$112,016 (+4.37%) Land $10,451 Building $101,565	$1,717,300 (-) Land $223,700 Building $1,493,600
2025	$10,642.00 (+1.15%)	$107,331 (-9.47%) Land $13,981 Building $93,350	$1,717,300 (-2.95%) Land $223,700 Building $1,493,600
2024	$10,521.00 (+1.58%)
2023	$10,357.00 (+35.39%)	$118,557 (+51.47%) Land $19,879 Building $98,678	$1,769,500 (+57.12%) Land $296,700 Building $1,472,800
2022	$7,650.00	$78,271 Land $11,231 Building $67,040	$1,126,200 Land $161,600 Building $964,600

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

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
Flood Insurance Cost	Premium on Record median of 33 policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	33 in force
Nearby Flood Claims	14 (1995–2013)
Claims Outside the SFHA	8 of 14
Most Recent Claim	Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 11 claims

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	Extreme above 98.2% of the US · above 99.6% of Colorado
Wildfire Likelihood	2% annual chance
Exposure	Direct burnable vegetation

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 20 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Ayva Networks Fixed Wireless	2,500 / 2,500
Visionary Broadband Fixed Wireless	200 / 20
Rise Broadband Fixed Wireless	50 / 10

May also be available: Magnolia Road Internet Cooperative.

Cell Coverage

4G LTE (outdoors only), no 5G reported

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