Boulder County property record for 850 20th St, Apt 206, Boulder, CO 80302
| Property Type | Condominium |
|---|---|
| Details | 1 bd · 1 ba · 709 sqft · built 1967 |
| Lot Size | 0.001 acres (24 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $43,000 (Oct 1987) |
| Tax Bill | $2,482 (2025) |
| Deeds & Mortgages | Jul 2026 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-31-4-13-011 |
| Primary APN | 1463-31-4-13-011 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 709 sqft Living Area |
| 1st Floor Area | 709 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 | 93 sqft |
| Heating System | Hot Water |
|---|
| Account Number | R0083347 |
|---|---|
| Street Address | 850 20TH ST, 206 |
| City | BOULDER |
| State | CO |
| Zip | 80302-7747 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Legal Description | UNIT 206 SAN MARCO NORTH CONDOS & 2.15% 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 206 is owned by two individuals who acquired it in July 2026.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 9715 ADELAIDE CT, HIGHLANDS RANCH, CO 80130-6849 |
| 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 | 2 Names on Deed |
|---|---|
| Last Sale | Oct 15, 1987 · Amount on File |
| Deed Sale | Oct 15, 1987 · Amount on File |
| Prior Sale | Oct 5, 1979 · Amount on File |
| Deed Document Number | 1987882790 |
| Last Transfer Date | Jul 14, 2026 |
| Transfer Doc | 0004140751 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jul 21, 2026 |
| Property Address | 850 20TH ST, 206, BOULDER, CO 80302-7747 |
| Document Number | 0004140751 |
| Instrument Date | Jul 14, 2026 |
| Instrument | 20264140751 |
| Transaction Type | Transfer |
| Record Updated | Aug 31, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 9715 ADELAIDE CT, HIGHLANDS RANCH, CO 80130-6849 |
The 2025 property tax bill for 850 20th St, Apt 206 was $2,482.
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 | $24,670 (-2.08%) Building $24,670 | $403,100 (-) Building $403,100 | |
| 2025 | $2,482.00 | $25,194 Building $25,194 | $403,100 Building $403,100 |
| 2023 | $2,007.00 (-13.57%) | $26,062 (+7.66%) Building $26,062 | $388,980 (+11.68%) Building $388,980 |
| 2022 | $2,322.00 | $24,207 Building $24,207 | $348,300 Building $348,300 |
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 206 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 206 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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