Boulder County property record for 3845 Northbrook Dr, Apt D, Boulder, CO 80304
| Property Type | Condominium |
|---|---|
| Details | 2 bd · 1.75 ba · 960 sqft · built 1984 |
| Lot Size | 0.001 acres (30 sqft) |
| Owner | Trust Name on File |
| Last Sale | $360,000 (Sep 2013) |
| Tax Bill | $3,488 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 1463-17-3-17-004 |
| Primary APN | 1463-17-3-17-004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Units | 7 Units |
| Stories | 1 Story |
| Building Area | 960 sqft Living Area |
| Gross Area | 1,160 sqft |
| 1st Floor Area | 960 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1984 |
| Architectural Style | Condo/Apartment |
| Exterior Material | Combination |
| Construction Type | Frame |
| Lot Area | 30 sqft (0.001 acres) |
| Garage Type | Attached |
| Garage Area | 200 sqft |
| Parking Spaces | 1 Parking Space |
| Patio Area | 288 sqft |
| Heating System | Hot Water |
|---|
| Account Number | R0098324 |
|---|---|
| Street Address | 3845 NORTHBROOK DR, D |
| City | BOULDER |
| State | CO |
| Zip | 80304-1446 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Legal Description | UNIT 4 BLDG 1 & UND 3.03515% INT GCE NORTHBROOK CONDOS 1ST AMENDED |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 20 |
| Legal Subdivision | NORTHBROOK CONDOS 1ST AMENDED - BO |
| Legal Block | 3 |
| Legal Unit | 4 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 12103 |
3845 Northbrook Dr, Apt D is owner-occupied and held in a trust since September 2013.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 3845 NORTHBROOK DR, D, BOULDER, CO 80304-1446 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 4, 2013 · Amount on File |
| Deed Sale | Sep 4, 2013 · Amount on File |
| Prior Sale | Apr 9, 2003 · Amount on File |
| Deed Document Number | 20133340063 |
| Prior Transfer Date | Jul 11, 2013 |
| Prior Transfer Doc | 0003392209 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 3845 Northbrook Dr, Apt D was $3,488.
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 | $35,826 (-2.08%) Building $35,826 | $585,400 (-) Building $585,400 | |
| 2025 | $3,488.00 | $36,588 Building $36,588 | $585,400 Building $585,400 |
| 2023 | $2,570.00 (-3.6%) | $33,452 (+16.49%) Building $33,452 | $499,279 (+20.83%) Building $499,279 |
| 2022 | $2,666.00 | $28,717 Building $28,717 | $413,200 Building $413,200 |
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.
FEMA maps place 3845 Northbrook Dr, Apt D in Zone X, an area of moderate flood risk, within 100 ft of a high-risk flood zone.
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 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 File 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.
Wildfire risk around 3845 Northbrook Dr, Apt D is low, with a 0.01% annual chance of 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.
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
Search by:
By searching, you agree to: Terms • Privacy • Disclosures