Boulder County property record for 850 20th St, Apt 104, Boulder, CO 80302
| Property Type | Condominium |
|---|---|
| Details | 1 bd · 1 ba · 720 sqft · built 1967 |
| Lot Size | 0.001 acres (24 sqft) |
| Owner | Individual Name on File |
| Last Sale | $44,000 (Oct 1982) |
| Tax Bill | $2,391 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-31-4-13-003 |
| Primary APN | 1463-31-4-13-003 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 720 sqft Living Area |
| 1st Floor Area | 720 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1967 |
|---|---|
| Effective Year Built | Effective 1967 |
| Architectural Style | Condo/Apartment |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 24 sqft (0.001 acres) |
| Porch | Porch |
| Porch Area | 87 sqft |
| Heating System | Hot Water |
|---|
| Account Number | R0083139 |
|---|---|
| Street Address | 850 20TH ST, 104 |
| City | BOULDER |
| State | CO |
| Zip | 80302-7741 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Legal Description | UNIT 104 SAN MARCO NORTH CONDOS & 2.16 UND INT IN COMMONS ELEMENTS |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 31 |
| Legal Subdivision | SAN MARCO NORTH CONDOS - BO |
| Legal Block | 2 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2013 |
| Census Tract | 12401 |
850 20th St, Apt 104 is owned by an individual who acquired it in February 2014.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 3003 COUNTRY CLUB DR, COLORADO SPRINGS, CO 80909-1022 |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 18, 1982 · Amount on File |
| Deed Sale | Oct 18, 1982 · Amount on File |
| Prior Sale | Sep 15, 1981 · Amount on File |
| Deed Document Number | 1982516176 |
| Last Transfer Date | Feb 28, 2014 |
| Transfer Doc | 0003369351 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 850 20th St, Apt 104 was $2,391.
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 | $24,560 (-2.08%) Building $24,560 | $401,300 (-) Building $401,300 | |
| 2025 | $2,391.00 | $25,081 Building $25,081 | $401,300 Building $401,300 |
| 2023 | $1,944.00 (-16.78%) | $26,203 (+7.6%) Building $26,203 | $391,090 (+11.61%) Building $391,090 |
| 2022 | $2,336.00 | $24,353 Building $24,353 | $350,400 Building $350,400 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 850 20th St, Apt 104 in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2013.
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 |
| Nearby Flood Claims | 1 (2013) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
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 850 20th St, Apt 104 is low, with a 0.02% 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 | 0.02% 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 481 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 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Magnolia Road Internet Cooperative.
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