3356 Sentinel Dr, Boulder, CO 80301 Property Records

Boulder County property record for 3356 Sentinel Dr, Boulder, CO 80301

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 1,907 sqft · built 1991
Lot Size	0.079 acres (3,439 sqft)
Owner	2 Individual Names on Record
Last Sale	$875,000 (Sep 2026)
Tax Bill	$5,456 (2025)
Deeds & Mortgages	Sep 2026 Sale
Flood Zone	Zone X (minimal risk)
APN	`1463-21-3-07-048`

Property Details

APN / Parcel Number

Primary APN	`1463-21-3-07-048`
Alternative APNs	`R0087750` `0087750`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Half Baths	3 Half Baths
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	1,907 sqft Living Area
Gross Area	2,755 sqft
1st Floor Area	798 sqft
Upper Floors Area	761 sqft
Basement Area	798 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1991
Effective Year Built	Effective 1996
Architectural Style	A-Frame
Exterior Material	Wood Shake/Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	3,439 sqft (0.079 acres)
Garage Type	Attached
Garage Area	398 sqft
Parking Spaces	1 Parking Space
Deck Area	120 sqft
Patio Area	260 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0087750
Street Address	3356 SENTINEL DR
City	BOULDER
State	CO
Zip	80301-5476
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 48 BLK 1 NORTHCREEK SUB
Legal Range	70
Legal Township	1N
Legal Section	21
Legal Subdivision	NORTHCREEK SUBDIVISION - BO
Legal Block	1
Legal Lot Number	48
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	2
Census Block	2008
Census Tract	12207

Owner

Source: Boulder County records, as of October 13, 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	3356 SENTINEL DR, BOULDER, CO 80301-5476
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 28, 2026 · Amount on Record
Deed Sale	Sep 28, 2026 · Amount on Record
Prior Sale	Sep 4, 2012 · Amount on Record
Deed Document Number	20264148535
Prior Transfer Date	Sep 22, 2008
Prior Transfer Doc	0002955936
Record Updated	Oct 29, 2026

September 2026: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Sep 28, 2026
Property Address	3356 SENTINEL DR, BOULDER, CO 80301-5476
Document Number	0004148535
Instrument Date	Sep 24, 2026
Instrument	20264148535
Transaction Type	Transfer
Record Updated	Oct 6, 2026
Title Company	LAND TITLE

Transaction

Amount	Amount Recorded
Tax	$8,837.50
Amount Accuracy	Calculated from Transfer Tax
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	3356 SENTINEL DR, BOULDER, CO 80301-5476

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$57,501 (+0.48%) Land $25,208 Building $32,293	$915,600 (-) Land $440,700 Building $474,900
2025	$5,456.00 (-5.85%)	$57,225 (-18.16%) Land $27,544 Building $29,681	$915,600 (-12.27%) Land $440,700 Building $474,900
2023	$5,795.00 (+17.24%)	$69,921 (+33.38%) Land $26,036 Building $43,885	$1,043,600 (+38.35%) Land $388,600 Building $655,000
2022	$4,943.00	$52,424 Land $21,948 Building $30,476	$754,300 Land $315,800 Building $438,500

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 20 policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	20 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

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

Wildfire Risk	Low lower than 67% of the US · lower than 84% of Colorado
Wildfire Likelihood	0.03% annual chance
Exposure	None beyond ember reach

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	CITY OF BOULDER serves 166,080 people · EPA ID CO0107152
Water Source	Surface water
Last State Inspection	Sep 2024
Lead	2 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	Haloacetic acids resolved · Jul 2017
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 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 108 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 · Fiber in parts of the area	2,000 / 250
Verizon Fixed Wireless	300 / 20
LiveWireNet Fixed Wireless	250 / 100
CenturyLink DSL · Fiber in parts of the area	140 / 20
T-Mobile Fixed Wireless	100 / 20