Boulder County property record for 3889 Northbrook Dr, Boulder, CO 80304
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.25 ba · 2,010 sqft · built 1984 |
| Lot Size | 0.119 acres (5,194 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $870,000 (Jul 2020) |
| Tax Bill | $6,909 (2025) |
| Deeds & Mortgages | Jul 2017 Line of Credit Jul 2020 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-17-3-16-025 |
| Primary APN | 1463-17-3-16-025 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 2,010 sqft Living Area |
| 1st Floor Area | 654 sqft |
| Upper Floors Area | 702 sqft |
| Basement Area | 654 sqft |
| Finished Basement | 654 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 5,194 sqft (0.119 acres) |
| Garage Type | Detached |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 528 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0081995 |
|---|---|
| Street Address | 3889 NORTHBROOK DR |
| City | BOULDER |
| State | CO |
| Zip | 80304-1404 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 8 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 | 8 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 12103 |
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 | 1433 OAKLEAF CIR, BOULDER, CO 80304-1152 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jul 3, 2017 | Deed of Trust, Mortgage · Line of Credit PREMIER MEMBERS CU |
| Jul 2, 2020 | Grant Deed, Transfer HERITAGE TITLE COMPANY, HERITAGE TITLE CO. |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 2, 2020 · Amount on Record |
| Deed Sale | Jul 2, 2020 · Amount on Record |
| Prior Sale | May 1, 2015 · Amount on Record |
| Deed Document Number | 20203795712 |
| Last Transfer Date | Sep 13, 2024 |
| Transfer Doc | 0004060535 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3889 NORTHBROOK DR, BOULDER, CO 80304-1404 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0003601154 |
|---|---|
| Date | Jul 3, 2017 |
| Instrument | 3601154 |
| Name | PREMIER MEMBERS CU |
|---|---|
| Type | Credit Union |
| Address | BOULDER, CO 80303 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 299 Months |
| Due | Jun 25, 2042 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jul 2, 2020 |
| Property Address | 3889 NORTHBROOK DR, BOULDER, CO 80304-1404 |
| Document Number | 0003795712 |
| Instrument Date | Jun 30, 2020 |
| Instrument | 3795712 |
| Transaction Type | Transfer |
| Record Updated | Aug 13, 2020 |
| Title Company | HERITAGE TITLE COMPANY, HERITAGE TITLE CO. |
| Amount | Amount Recorded |
|---|---|
| Tax | $87.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Sole Owner |
| Address | 3889 NORTHBROOK DR BOULDER CO 803041404, BOULDER, CO 80304-1404 |
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $73,161 (+2.15%) Land $24,371 Building $48,790 | $1,145,900 (-) Land $428,400 Building $717,500 | |
| 2025 | $6,909.00 (+9.39%) | $71,619 (-6.78%) Land $26,775 Building $44,844 | $1,145,900 (-0.07%) Land $428,400 Building $717,500 |
| 2023 | $6,316.00 (+16.62%) | $76,829 (+31.73%) Land $31,564 Building $45,265 | $1,146,700 (+36.64%) Land $471,100 Building $675,600 |
| 2022 | $5,416.00 | $58,324 Land $26,966 Building $31,358 | $839,200 Land $388,000 Building $451,200 |
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.
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 |
|
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| 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 cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
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 |
| 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.
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.
5G (outdoors only) and 4G LTE
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