Boulder County property record for 3351 Sentinel Dr, Boulder, CO 80301
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.25 ba · 3,021 sqft · built 1990 |
| Lot Size | 0.15 acres (6,516 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $808,000 (Jul 2019) |
| Tax Bill | $6,658 (2025) |
| Deeds & Mortgages | Dec 2021 Line of Credit Jun 2021 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-21-3-07-035 |
| Primary APN | 1463-21-3-07-035 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 3,021 sqft Living Area |
| Gross Area | 3,777 sqft |
| 1st Floor Area | 1,322 sqft |
| Upper Floors Area | 917 sqft |
| Basement Area | 782 sqft |
| Finished Basement | 782 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1990 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 6,516 sqft (0.15 acres) |
| Garage Type | Attached |
| Garage Area | 396 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Enclosed Porch |
| Porch Area | 360 sqft |
| Deck Area | 196 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0087737 |
|---|---|
| Street Address | 3351 SENTINEL DR |
| City | BOULDER |
| State | CO |
| Zip | 80301-5474 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 35 BLK 1 NORTHCREEK SUB |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 21 |
| Legal Subdivision | NORTHCREEK SUBDIVISION - BO |
| Legal Block | 1 |
| Legal Lot Number | 35 |
| 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 are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 3351 SENTINEL DR, BOULDER, CO 80301-5474 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Dec 8, 2021 | Deed of Trust, Mortgage · Line of Credit ELEVATIONS CU |
| Jun 30, 2021 | Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU |
| Jul 18, 2019 | Warranty Deed, Transfer · Conventional Mortgage ELEVATIONS CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 18, 2019 · Amount on Record |
| Deed Sale | Jul 18, 2019 · Amount on Record |
| Prior Sale | Aug 18, 2011 · Amount on Record |
| Deed Document Number | 20193724897 |
| Prior Transfer Date | Nov 16, 2011 |
| Prior Transfer Doc | 0003184628 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3351 SENTINEL DR, BOULDER, CO 80301-5474 |
| Transaction Type | Mortgage |
| Record Updated | Dec 29, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0003933158 |
|---|---|
| Date | Dec 8, 2021 |
| Instrument | 3933158 |
| Name | ELEVATIONS CU |
|---|---|
| Type | Credit Union |
| Address | BOULDER, CO 80301 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3351 SENTINEL DR, BOULDER, CO 80301-5474 |
| Transaction Type | Mortgage |
| Record Updated | Jul 14, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0003896568 |
|---|---|
| Date | Jun 30, 2021 |
| Instrument | 3896568 |
| Name | ELEVATIONS CU |
|---|---|
| Type | Credit Union |
| Address | BOULDER, CO 80301 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jul 1, 2051 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jul 18, 2019 |
| Property Address | 3351 SENTINEL DR, BOULDER, CO 80301-5474 |
| Document Number | 0003724897 |
| Instrument Date | Jul 16, 2019 |
| Instrument | 3724897 |
| Transaction Type | Transfer |
| Record Updated | Jul 26, 2019 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $80.80 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 3351 SENTINEL DR BOULDER CO 803015474, BOULDER, CO 80301-5474 |
| Document Number | 3724898 |
|---|---|
| Date | Jul 18, 2019 |
| Instrument | 3724898 |
| Name | ELEVATIONS CU |
|---|---|
| Address | BOULDER, CO 80301 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jul 17, 2049 |
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 | $71,216 (+1.98%) Land $37,019 Building $34,197 | $1,117,300 (-) Land $614,400 Building $502,900 | |
| 2025 | $6,658.00 (-7%) | $69,831 (-19.35%) Land $38,400 Building $31,431 | $1,117,300 (-13.54%) Land $614,400 Building $502,900 |
| 2023 | $7,159.00 (+27.86%) | $86,584 (+43.59%) Land $36,783 Building $49,801 | $1,292,300 (+48.95%) Land $549,000 Building $743,300 |
| 2022 | $5,599.00 | $60,298 Land $31,240 Building $29,058 | $867,600 Land $449,500 Building $418,100 |
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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