3875 Northbrook Dr, Boulder, CO 80304 Property Records

Boulder County property record for 3875 Northbrook Dr, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 1,941 sqft · built 1984
Lot Size	0.081 acres (3,508 sqft)
Owner	Company Name on File
Last Sale	$485,000 (Dec 2012)
Tax Bill	$5,161 (2025)
Deeds & Mortgages	Feb 2018 Line of Credit
Flood Zone	Zone X (moderate risk)
APN	`1463-17-3-16-022`

Property Details

APN / Parcel Number

Primary APN	`1463-17-3-16-022`
Alternative APNs	`R0081992` `0081992`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	5 Rooms
Stories	2 Stories
Building Area	1,941 sqft Living Area
Gross Area	2,316 sqft
1st Floor Area	664 sqft
Upper Floors Area	680 sqft
Basement Area	664 sqft
Finished Basement	597 sqft
Unfinished Basement	67 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1984
Effective Year Built	Effective 1984
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	3,508 sqft (0.081 acres)
Garage Type	Attached
Garage Area	308 sqft
Parking Spaces	1 Parking Space
Deck Area	323 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0081992
Street Address	3875 NORTHBROOK DR
City	BOULDER
State	CO
Zip	80304-1404
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 5 BLK I WINDING TRAIL VILLAGE REPLAT
Legal Range	70
Legal Township	1N
Legal Section	20
Legal Subdivision	WINDING TRAIL VILLAGE REPLT - BO
Legal Block	I
Legal Lot Number	5
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3006
Census Tract	12103

Owner

Source: Boulder County records · APN 1463-17-3-16-022

Assessment roll updated June 15, 2026 · Last verified June 2026

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

Owner of Record	Company Name on File
Mailing Address	3875 NORTHBROOK DR, BOULDER, CO 80304-1404
Owner Type	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Dec 03, 2012 · Amount on Record
Deed Sale	Dec 03, 2012 · Amount on Record
Prior Sale	Nov 10, 1998 · Amount on Record
Deed Document Number	20123271484
Record Updated	Sep 20, 2026

February 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	3875 NORTHBROOK DR, BOULDER, CO 80304-1404
Document Number	0003641699
Instrument Date	Feb 16, 2018
Transaction Type	Mortgage
Record Updated	Mar 01, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3875 NORTHBROOK DR BOULDER CO 803041404, BOULDER, CO 80304-1404

Mortgage

Document Number	0003641699
Date	Feb 22, 2018
Instrument	3641699

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Feb 21, 2038

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 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

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.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$65,702 (+8.8%) Land $23,637 Building $42,065	$966,200 (-) Land $347,600 Building $618,600
2025	$5,161.00 (+0.92%)	$60,388 (-4.02%) Land $21,725 Building $38,663	$966,200 (+2.9%) Land $347,600 Building $618,600
2023	$5,114.00 (+15%)	$62,914 (+31.37%) Land $24,891 Building $38,023	$939,000 (+36.26%) Land $371,500 Building $567,500
2022	$4,447.00	$47,892 Land $21,211 Building $26,681	$689,100 Land $305,200 Building $383,900

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 14, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AE, within 100 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 28 individual policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	58 units insured incl. 30 condo units
Nearby Flood Claims	18 (1995–2022)
Claims Outside the SFHA	9 of 18
Most Recent Claim	Oct 2022 · rainfall accumulation
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 15 claims

Wildfire

Wildfire Risk	Low lower than 66% of the US · lower than 83% of Colorado
Wildfire Likelihood	0.03% annual chance
Exposure	None beyond ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Ayva Fixed Wireless	2,500 / 2,500
Xfinity Cable	2,000 / 250
Live Wire Networks Fixed Wireless	250 / 100
Lumen Technologies DSL · Fiber in parts of the area	140 / 20

May also be available: T-Mobile USA, Verizon.

Based on FCC filings for 341 locations within half a mile of this property.

Cell Coverage

5G (outdoors only) and 4G LTE

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF BOULDER serves 166,080 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.