Boulder County property record for 3391 Sentinel Dr, Boulder, CO 80301
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.25 ba · 1,559 sqft · built 1991 |
| Lot Size | 0.129 acres (5,609 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $472,500 (Oct 2010) |
| Tax Bill | $5,376 (2025) |
| Deeds & Mortgages | Jul 2020 Mortgage Jul 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-21-3-09-001 |
| Primary APN | 1463-21-3-09-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.25 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,559 sqft Living Area |
| Gross Area | 2,755 sqft |
| 1st Floor Area | 798 sqft |
| Upper Floors Area | 761 sqft |
| Basement Area | 798 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1991 |
|---|---|
| Effective Year Built | Effective 2008 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 5,609 sqft (0.129 acres) |
| Garage Type | Attached |
| Garage Area | 398 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 132 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0087770 |
|---|---|
| Street Address | 3391 SENTINEL DR |
| City | BOULDER |
| State | CO |
| Zip | 80301-5450 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 1 BLK 3 NORTHCREEK SUB |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 21 |
| Legal Subdivision | NORTHCREEK SUBDIVISION - BO |
| Legal Block | 3 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 12207 |
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 | 3391 SENTINEL DR, BOULDER, CO 80301-5450 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jul 24, 2020 | Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU |
| Jul 14, 2017 | Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 19, 2010 · Amount on Record |
| Deed Sale | Oct 19, 2010 · Amount on Record |
| Prior Sale | Jun 2, 2005 · Amount on Record |
| Deed Document Number | 20103106249 |
| Prior Transfer Date | Jan 18, 1995 |
| Prior Transfer Doc | 0001493800 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3391 SENTINEL DR, BOULDER, CO 80301-5450 |
| Document Number | 0003802445 |
| Instrument Date | Jul 24, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Aug 31, 2020 |
| Title Company | LAND TITLE GUARANTEE |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 3391 SENTINEL DR BOULDER CO 803015450, BOULDER, CO 80301-5450 |
| Document Number | 0003802445 |
|---|---|
| Date | Jul 30, 2020 |
| Instrument | 3802445 |
| Name | ELEVATIONS CU |
|---|---|
| Address | BOULDER, CO 80301 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | Jul 29, 2035 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3391 SENTINEL DR, BOULDER, CO 80301-5450 |
| Document Number | 0003604254 |
| Instrument Date | Jul 14, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Aug 3, 2017 |
| Title Company | LAND TITLE GUARANTEE |
| Name | Verified Name |
|---|---|
| Address | 3391 SENTINEL DR BOULDER CO 803015450, BOULDER, CO 80301-5450 |
| Document Number | 0003604254 |
|---|---|
| Date | Jul 19, 2017 |
| Instrument | 3604254 |
| Name | ELEVATIONS CU |
|---|---|
| Address | BOULDER, CO 80301 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | Jul 18, 2032 |
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 | $63,390 (+1.2%) Land $33,511 Building $29,879 | $1,002,200 (-) Land $562,800 Building $439,400 | |
| 2025 | $5,376.00 (-6.26%) | $62,638 (-18.43%) Land $35,175 Building $27,463 | $1,002,200 (-12.56%) Land $562,800 Building $439,400 |
| 2023 | $5,735.00 (+21.38%) | $76,795 (+32.78%) Land $33,252 Building $43,543 | $1,146,200 (+37.73%) Land $496,300 Building $649,900 |
| 2022 | $4,725.00 | $57,838 Land $28,029 Building $29,809 | $832,200 Land $403,300 Building $428,900 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 20 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 20 in force |
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 67% of the US · lower than 84% 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 108 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 · Fiber in parts of the area | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| CenturyLink DSL · Fiber in parts of the area | 140 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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