Boulder County property record for 3100 Jefferson St, Boulder, CO 80304
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,420 sqft · built 1956 |
| Lot Size | 0.211 acres (9,208 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $7,617 (2025) |
| Deeds & Mortgages | May 2023 Line of Credit Oct 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-19-3-16-001 |
| Primary APN | 1463-19-3-16-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,420 sqft Living Area |
| Gross Area | 1,660 sqft |
| 1st Floor Area | 1,420 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | Ranch |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 9,208 sqft (0.211 acres) |
| Garage Type | Attached |
| Garage Area | 240 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Porch Area | 180 sqft |
| Patio Area | 225 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0003123 |
|---|---|
| Street Address | 3100 JEFFERSON ST |
| City | BOULDER |
| State | CO |
| Zip | 80304-2639 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 1 BLK 1 BONSALL |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 19 |
| Legal Subdivision | BONSALL - BO |
| Legal Block | 1 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 12106 |
Source: Boulder County assessment roll, as of June 15, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 3100 JEFFERSON ST, BOULDER, CO 80304-2639 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Trust, Revocable Trust |
| Date | Document |
|---|---|
| May 8, 2023 | Deed of Trust, Mortgage · Line of Credit ELEVATIONS CU |
| Oct 18, 2017 | Deed of Trust, Mortgage · Conventional Mortgage PRIVATE INDIVIDUAL |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | May 27, 1998 |
| Deed Sale | May 27, 1998 |
| Prior Sale | Oct 29, 1996 · Amount on Record |
| Deed Document Number | 19981805925 |
| Last Transfer Date | Sep 2, 2010 |
| Transfer Doc | 0003096782 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3100 JEFFERSON ST, BOULDER, CO 80304-2639 |
| Transaction Type | Mortgage |
| Record Updated | May 18, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0004006419 |
|---|---|
| Date | May 8, 2023 |
| Instrument | 4006419 |
| Name | ELEVATIONS CU |
|---|---|
| Type | Credit Union |
| Address | BOULDER, CO 80301 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 240 Months |
| Due | May 7, 2043 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3100 JEFFERSON ST, BOULDER, CO 80304-2639 |
| Document Number | 0003620693 |
| Instrument Date | Oct 18, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Aug 27, 2018 |
| Name | Verified Name |
|---|---|
| Address | 3100 JEFFERSON ST BOULDER CO 803042639, BOULDER, CO 80304-2639 |
| Document Number | 0003620693 |
|---|---|
| Date | Oct 18, 2017 |
| Instrument | 3620693 |
| Name | PRIVATE INDIVIDUAL |
|---|---|
| Type | Private Party |
| Address | DENVER, CO 80203 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Rate | 9.25% |
|---|
Source: Boulder County assessment roll, as of June 15, 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 | $86,917 (+8.8%) Land $67,748 Building $19,169 | $1,278,200 (-) Land $996,300 Building $281,900 | |
| 2025 | $7,617.00 (+4.87%) | $79,888 (-9.01%) Land $62,269 Building $17,619 | $1,278,200 (-2.46%) Land $996,300 Building $281,900 |
| 2023 | $7,263.00 (+20.43%) | $87,796 (+35.16%) Land $65,941 Building $21,855 | $1,310,400 (+40.21%) Land $984,200 Building $326,200 |
| 2022 | $6,031.00 | $64,955 Land $49,776 Building $15,179 | $934,600 Land $716,200 Building $218,400 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 50 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 50 in force |
| Nearby Flood Claims | 3 (2013) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| 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 |
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 596 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Fixed Wireless | 2,500 / 2,500 |
| Lumen Technologies Fiber | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Live Wire Networks Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures