Boulder County property record for 3948 15th St, #A, Boulder, CO 80304
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 4,192 sqft · built 1990 |
| Lot Size | 0.5 acres (21,784 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $219,600 (May 1991) |
| Tax Bill | $11,090 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-18-3-45-001 |
| Primary APN | 1463-18-3-45-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 4,192 sqft Living Area |
| Gross Area | 4,768 sqft |
| 1st Floor Area | 1,808 sqft |
| Upper Floors Area | 2,384 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1990 |
|---|---|
| Effective Year Built | Effective 1992 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 21,784 sqft (0.5 acres) |
| Garage Type | Attached |
| Garage Area | 576 sqft |
| Porch | Porch |
| Porch Area | 248 sqft |
| Deck Area | 846 sqft |
| Heating System | Hot Water |
|---|
| Account Number | R0108707 |
|---|---|
| Street Address | 3948 15TH ST, A |
| City | BOULDER |
| State | CO |
| Zip | 80304-1102 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT A WALCON SUBDIVISION LESS NLY 25 FT TO CITY OF BOULDER PER REC#2000685 |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 18 |
| Legal Subdivision | WALCON SUBDIVISION - BO |
| Legal Block | 3 |
| Legal Lot Number | A |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 12105 |
3948 15th St, #A is owned by two individuals who acquired it in September 2003.
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 File |
|---|---|
| Mailing Address | 3948 15TH ST, BOULDER, CO 80304-1102 |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 14, 1991 · Amount on File |
| Deed Sale | May 14, 1991 · Amount on File |
| Prior Sale | Aug 6, 1990 |
| Deed Document Number | 19911103310 |
| Last Transfer Date | Sep 5, 2003 |
| Transfer Doc | 0002524992 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 3948 15th St, #A was $11,090.
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 | $128,588 (+4.92%) Land $80,879 Building $47,709 | $1,961,000 (-) Land $1,259,400 Building $701,600 | |
| 2025 | $11,090.00 | $122,563 Land $78,713 Building $43,850 | $1,961,000 Land $1,259,400 Building $701,600 |
| 2023 | $10,917.00 (+18.88%) | $136,801 (+29.25%) Land $81,365 Building $55,436 | $2,041,800 (+34.07%) Land $1,214,400 Building $827,400 |
| 2022 | $9,183.00 | $105,842 Land $65,643 Building $40,199 | $1,522,900 Land $944,500 Building $578,400 |
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 3948 15th St, #A in Zone X, an area of minimal flood risk, though there have been 26 flood claims nearby since 2005.
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 File median of 32 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 32 in force |
| Nearby Flood Claims | 26 (2005–2015) |
| Claims Outside the SFHA | 10 of 26 |
| Most Recent Claim | May 2015 · Severe Storms, Tornadoes, 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.
Wildfire risk around 3948 15th St, #A is low, with a 0.03% 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 | 0.03% 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 482 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| CenturyLink Fiber · DSL in parts of the area | 8,000 / 8,000 |
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| Xfinity Cable | 2,000 / 250 |
| LiveWireNet Fixed Wireless | 250 / 100 |
May also be available: T-Mobile, Verizon.
5G (outdoors only) and 4G LTE
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