Boulder County property record for 3855 Northbrook Dr, Boulder, CO 80304
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2.5 ba · 1,665 sqft · built 1982 |
| Lot Size | 0.115 acres (5,013 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $139,000 (Nov 1991) |
| Tax Bill | $6,115 (2025) |
| Deeds & Mortgages | Mar 2023 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-17-3-16-018 |
| Primary APN | 1463-17-3-16-018 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,665 sqft Living Area |
| Gross Area | 2,782 sqft |
| 1st Floor Area | 959 sqft |
| Upper Floors Area | 706 sqft |
| Basement Area | 809 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1982 |
|---|---|
| Effective Year Built | Effective 1982 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shake/Shingle |
| Construction Type | Frame |
| Lot Area | 5,013 sqft (0.115 acres) |
| Garage Type | Attached |
| Garage Area | 308 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 408 sqft |
| Patio Area | 508 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0033362 |
|---|---|
| Street Address | 3855 NORTHBROOK DR |
| City | BOULDER |
| State | CO |
| Zip | 80304-1404 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 1 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 | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 12103 |
Source: Boulder County records, as of October 16, 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 | 3855 NORTHBROOK DR, BOULDER, CO 80304-1404 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 22, 1991 · Amount on Record |
| Deed Sale | Nov 22, 1991 · Amount on Record |
| Prior Sale | Oct 19, 1988 · Amount on Record |
| Deed Document Number | 19911144294-5 |
| Last Transfer Date | Jun 24, 2009 |
| Transfer Doc | 0003019518 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3855 NORTHBROOK DR, BOULDER, CO 80304-1404 |
| Transaction Type | Mortgage |
| Record Updated | Mar 14, 2023 |
| Name | Verified Name |
|---|---|
| Address | 3855 NORTHBROOK DR, BOULDER, CO 80304-1404 |
| Document Number | 0003999445 |
|---|---|
| Date | Mar 8, 2023 |
| Instrument | 3999445 |
| Name | PREMIER MEMBERS CU |
|---|---|
| Type | Credit Union |
| Address | BROOMFIELD, CO 80021 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Mar 25, 2048 |
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 | $65,022 (+1.38%) Land $23,494 Building $41,528 | $1,026,200 (-) Land $415,500 Building $610,700 | |
| 2025 | $6,115.00 (+9.65%) | $64,138 (-4.48%) Land $25,969 Building $38,169 | $1,026,200 (+2.39%) Land $415,500 Building $610,700 |
| 2024 | $5,577.00 (+1.77%) | ||
| 2023 | $5,480.00 (+14.64%) | $67,148 (+30.44%) Land $29,755 Building $37,393 | $1,002,200 (+35.3%) Land $444,100 Building $558,100 |
| 2022 | $4,780.00 | $51,479 Land $25,354 Building $26,125 | $740,700 Land $364,800 Building $375,900 |
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 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.
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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