Boulder County property record for 2233 4th St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 3,394 sqft · built 1941 |
| Lot Size | 0.231 acres (10,054 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,600,000 (Mar 2014) |
| Tax Bill | $20,984 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-25-3-04-013 |
| Primary APN | 1461-25-3-04-013 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 3,394 sqft Living Area |
| Gross Area | 3,632 sqft |
| 1st Floor Area | 1,706 sqft |
| Upper Floors Area | 1,688 sqft |
| Basement Area | 238 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 10,054 sqft (0.231 acres) |
| Garage Type | Detached |
| Garage Area | 420 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
|---|---|
| Porch Area | 198 sqft |
| Deck Area | 714 sqft |
| Patio Area | 876 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0004734 |
|---|---|
| Street Address | 2233 4TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-4710 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS 29-30 & VAC ST ADJ W & S BLK 1 MAPLETON PARK |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 25 |
| Legal Subdivision | MAPLETON PARK - BO |
| Legal Block | 1 |
| Legal Lot Number | 29 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 12101 |
Source: Boulder County records, 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 Record |
|---|---|
| Mailing Address | 2233 4TH ST, BOULDER, CO 80302-4710 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 4, 2014 · Amount on Record |
| Deed Sale | Mar 4, 2014 · Amount on Record |
| Prior Sale | May 7, 1985 · Amount on Record |
| Deed Document Number | 20143368770 |
| 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 | $239,442 (+8.8%) Land $130,023 Building $109,419 | $3,521,200 (-) Land $1,912,100 Building $1,609,100 | |
| 2025 | $20,984.00 (+5.56%) | $220,075 (-5.9%) Land $119,506 Building $100,569 | $3,521,200 (+0.88%) Land $1,912,100 Building $1,609,100 |
| 2023 | $19,878.00 (+3.11%) | $233,870 (+12.66%) Land $121,739 Building $112,131 | $3,490,600 (+16.86%) Land $1,817,000 Building $1,673,600 |
| 2022 | $19,278.00 | $207,596 Land $91,851 Building $115,745 | $2,987,000 Land $1,321,600 Building $1,665,400 |
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.
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 |
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 684 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| CenturyLink Fiber · DSL in parts of the area | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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