Boulder County property record for 2221 4th St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 3,226 sqft · built 1955 |
| Lot Size | 0.229 acres (9,973 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $444,000 (Oct 1992) |
| Tax Bill | $16,835 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-25-3-05-001 |
| Primary APN | 1461-25-3-05-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Building Area | 3,226 sqft Living Area |
| Gross Area | 3,697 sqft |
| 1st Floor Area | 2,686 sqft |
| Upper Floors Area | 540 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1986 |
| Architectural Style | Split Level |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 9,973 sqft (0.229 acres) |
| Garage Type | Attached |
| Garage Area | 471 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 926 sqft |
| Patio Area | 1,052 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0000559 |
|---|---|
| Street Address | 2221 4TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-4710 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS 1-2 & VAC ST ADJ N & W BLK 2 MAPLETON PARK |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 25 |
| Legal Subdivision | MAPLETON PARK - BO |
| Legal Block | 2 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 12101 |
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 2221 4TH ST, BOULDER, CO 80302-4710 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Oct 9, 1992 · Amount on Record |
| Deed Sale | Oct 9, 1992 · Amount on Record |
| Prior Sale | Jun 18, 1986 · Amount on Record |
| Deed Document Number | 19921228507 |
| Last Transfer Date | Apr 16, 1998 |
| Transfer Doc | 0002004098 |
| Record Updated | Sep 20, 2026 |
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 | $198,907 (+8.8%) Land $129,499 Building $69,408 | $2,925,100 (-) Land $1,904,400 Building $1,020,700 | |
| 2025 | $16,835.00 (+1.94%) | $182,819 (-7.8%) Land $119,025 Building $63,794 | $2,925,100 (-1.17%) Land $1,904,400 Building $1,020,700 |
| 2024 | $16,514.00 (+1.77%) | ||
| 2023 | $16,227.00 (+10.85%) | $198,293 (+20.47%) Land $121,250 Building $77,043 | $2,959,600 (+24.97%) Land $1,809,700 Building $1,149,900 |
| 2022 | $14,639.00 | $164,597 Land $91,483 Building $73,114 | $2,368,300 Land $1,316,300 Building $1,052,000 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 12 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 16 units insured incl. 4 condo units |
| 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 | High above 82% of the US · above 85% of Colorado |
|---|---|
| Wildfire Likelihood | 0.8% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
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 684 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 · DSL in parts of the area | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Live Wire Networks Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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