Boulder County property record for 3309 4th St, Boulder, CO 80304 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3.75 ba · 3,560 sqft · built 1955 |
| Lot Size | 0.339 acres (14,766 sqft) |
| Owner | Individual Name on File |
| Last Sale | $272,500 (Aug 1991) |
| Tax Bill | $12,226 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-24-3-00-006 |
| Primary APN | 1461-24-3-00-006 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 3,560 sqft Living Area |
| Gross Area | 5,149 sqft |
| 1st Floor Area | 1,902 sqft |
| Upper Floors Area | 1,658 sqft |
| Basement Area | 1,209 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 14,766 sqft (0.339 acres) |
| Garage Type | Attached |
| Garage Area | 324 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Enclosed Porch |
|---|---|
| Porch Area | 56 sqft |
| Deck Area | 216 sqft |
| Patio Area | 536 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0069240 |
|---|---|
| Street Address | 3309 4TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80304-1747 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 343C 24-1N-71 BO TRS PER REC 678248 3/21/85 TOTAL .35 ACS M/L |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 24 |
| Legal Subdivision | TR, NBR 128,158,172-178 FOOTHILLS |
| Legal Tract | 343C |
| Legal Block | 2 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-24-3-00-006
Assessment roll updated June 15, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 3309 4TH ST, BOULDER, CO 80304-1747 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 16, 1991 · Amount on Record |
| Deed Sale | Aug 16, 1991 · Amount on Record |
| Prior Sale | Jul 03, 1991 |
| Deed Document Number | 19911123820 |
| Last Transfer Date | Jun 01, 2001 |
| Transfer Doc | 0002167015 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
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.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $139,516 (+8.8%) Land $125,564 Building $13,952 | $2,051,700 (-) Land $1,846,530 Building $205,170 | |
| 2025 | $12,226.00 (-0.02%) | $128,231 (-11.74%) Land $115,408 Building $12,823 | $2,051,700 (-5.38%) Land $1,846,530 Building $205,170 |
| 2023 | $12,228.00 (+10.09%) | $145,283 (+22.68%) Land $130,755 Building $14,528 | $2,168,400 (+27.25%) Land $1,951,560 Building $216,840 |
| 2022 | $11,107.00 | $118,428 Land $104,889 Building $13,539 | $1,704,000 Land $1,509,200 Building $194,800 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130121012, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Flood Insurance Cost | Premium on Record median of 63 individual NFIP policies nearby |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 63 in force |
| Nearby Flood Claims | 25 (1990–2026) |
| Claims Outside the SFHA | 17 of 25 |
| Most Recent Claim | Jun 2026, rainfall accumulation |
| Claims By Storm |
|
| Wildfire Risk | High above 76% of the US · above 76% of Colorado |
|---|---|
| Wildfire Likelihood | About 1 in 180 per year |
| Exposure | Direct burnable vegetation at the parcel |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 431 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Ayva | Fixed Wireless (unlicensed) | 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 (licensed-by-rule) | 250 / 100 |
May also be available at this address: T-Mobile USA. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G (outdoors only) and 4G LTE
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