3859 Northbrook Dr, Boulder, CO 80304 Property Records

Boulder County property record for 3859 Northbrook Dr, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	2 bd · 3 ba · 2,094 sqft · built 1983
Lot Size	0.102 acres (4,440 sqft)
Owner	2 Company Names on Record
Last Sale	$830,000 (May 2020)
Tax Bill	$6,384 (2025)
Deeds & Mortgages	May 2020 Sale & Mortgage Mar 2020 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`1463-17-3-16-019`

Property Details

APN / Parcel Number

Primary APN	`1463-17-3-16-019`
Alternative APNs	`R0081989` `0081989`

Interior

Bedrooms	2 Beds
Full Baths	3 Baths
Half Baths	3 Half Baths
Total Rooms	5 Rooms
Stories	2 Stories
Building Area	2,094 sqft Living Area
Gross Area	2,140 sqft
1st Floor Area	798 sqft
Upper Floors Area	688 sqft
Basement Area	654 sqft
Finished Basement	608 sqft
Unfinished Basement	46 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1983
Effective Year Built	Effective 1990
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	4,440 sqft (0.102 acres)
Garage Type	Detached
Garage Area	440 sqft
Parking Spaces	2 Parking Spaces
Deck Area	464 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0081989
Street Address	3859 NORTHBROOK DR
City	BOULDER
State	CO
Zip	80304-1404
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 2 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	2
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3006
Census Tract	12103

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 Company Names on Record
Mailing Address	3859 NORTHBROOK DR, BOULDER, CO 80304-1404
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Revocable Trust

Deeds, Mortgages & Sale History

Date	Document
May 29, 2020	Grant Deed, Transfer ELEVATIONS CU
Mar 11, 2020	Deed of Trust, Mortgage · Line of Credit ELEVATIONS CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 29, 2020 · Amount on Record
Deed Sale	May 29, 2020 · Amount on Record
Prior Sale	May 12, 2010 · Amount on Record
Deed Document Number	20203787481
Last Transfer Date	Jul 19, 2024
Transfer Doc	0004055989
Record Updated	Oct 29, 2026

May 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	May 29, 2020
Property Address	3859 NORTHBROOK DR, BOULDER, CO 80304-1404
Document Number	0003787481
Instrument Date	May 28, 2020
Instrument	3787481
Transaction Type	Transfer
Record Updated	Jul 10, 2020
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$83.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	3859 NORTHBROOK DR BOULDER CO 803041404, BOULDER, CO 80304-1404

Mortgage

Document Number	3787482
Date	May 29, 2020
Instrument	3787482

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Amount	Amount Recorded
Term	360 Months
Due	May 28, 2050

Interest

Rate Type	Adjustable Rate
Rate	3.62%

March 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	3859 NORTHBROOK DR, BOULDER, CO 80304-1404
Document Number	0003772214
Instrument Date	Mar 11, 2020
Transaction Type	Mortgage
Record Updated	Jun 8, 2020
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3859 NORTHBROOK DR BOULDER CO 803041404, BOULDER, CO 80304-1404

Mortgage

Document Number	0003772214
Date	Mar 16, 2020
Instrument	3772214

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Mar 15, 2040

Interest

Rate Type	Adjustable Rate

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		$68,088 (+1.69%) Land $21,828 Building $46,260	$1,071,300 (-) Land $391,000 Building $680,300
2025	$6,384.00 (+11.96%)	$66,957 (-3.96%) Land $24,438 Building $42,519	$1,071,300 (+2.95%) Land $391,000 Building $680,300
2023	$5,702.00 (+13.77%)	$69,720 (+29.18%) Land $28,006 Building $41,714	$1,040,600 (+33.99%) Land $418,000 Building $622,600
2022	$5,012.00	$53,973 Land $23,859 Building $30,114	$776,600 Land $343,300 Building $433,300

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
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

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 80% of the US · lower than 91% of Colorado
Wildfire Likelihood	0.01% 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 341 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	2,000 / 250
LiveWireNet Fixed Wireless	250 / 100
CenturyLink DSL · Fiber in parts of the area	140 / 20

May also be available: T-Mobile, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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