Boulder County property record for 3952 20th St, Boulder, CO 80304 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,950 sqft · built 1958 |
| Lot Size | 0.441 acres (19,193 sqft) |
| Owner | Company Name on File |
| Tax Bill | $6,368 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-18-4-10-003 |
| Primary APN | 1463-18-4-10-003 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,950 sqft Living Area |
| 1st Floor Area | 1,950 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | Ranch |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 19,193 sqft (0.441 acres) |
| Total Buildings | 2 Buildings |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0071884 |
|---|---|
| Street Address | 3952 20TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80304-1346 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 1 BLK 22 MOORES |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 18 |
| Legal Subdivision | MOORES & REPLAT LOT 15 BLK 30 - BO |
| Legal Block | 22 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2018 |
| Census Tract | 12103 |
Source: Boulder County records · APN 1463-18-4-10-003
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 | Company Name on File |
|---|---|
| Mailing Address | 3952 20TH ST, BOULDER, CO 80304-1346 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Nov 05, 1982 |
| Deed Sale | Nov 05, 1982 |
| Prior Sale | Mar 14, 1977 |
| Deed Document Number | 1982518972 |
| 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 and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $79,465 (+8.8%) Land $71,518 Building $7,947 | $1,168,600 (-) Land $1,051,740 Building $116,860 | |
| 2025 | $6,368.00 (+3.46%) | $73,038 (-10.56%) Land $65,734 Building $7,304 | $1,168,600 (-4.12%) Land $1,051,740 Building $116,860 |
| 2023 | $6,155.00 (+18.55%) | $81,660 (+29.89%) Land $73,494 Building $8,166 | $1,218,800 (+34.73%) Land $1,096,920 Building $121,880 |
| 2022 | $5,192.00 | $62,870 Land $56,583 Building $6,287 | $904,600 Land $814,140 Building $90,460 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130121032, 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 |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Cost | Premium on Record median of 31 individual NFIP policies nearby |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 31 in force |
| Nearby Flood Claims | 26 (1995–2014) |
| Claims Outside the SFHA | 14 of 26 |
| Most Recent Claim | May 2014, other causes |
| Claims By Storm |
|
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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 384 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Ayva | Fixed Wireless (unlicensed) | 2,500 / 2,500 |
| Xfinity | Cable | 2,000 / 250 |
| Live Wire Networks | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| Lumen Technologies | DSL | 140 / 20 |
| AT&T | Fixed Wireless | 100 / 20 |
May also be available at this address: Lumen Technologies. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G (outdoors only) and 4G LTE
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