Boulder County property record for 4401 Mast Rd, Boulder, CO 80301
| Property Type | Destroyed / Uninhabitable Vacant Land |
|---|---|
| Lot Size | 0.552 acres (24,059 sqft) |
| Owner | Company Name on Record |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-14-2-14-011 |
| Primary APN | 1463-14-2-14-011 |
|---|---|
| Alternative APNs |
|
| Lot Area | 24,059 sqft (0.552 acres) |
|---|
| Account Number | R0039098 |
|---|---|
| Street Address | 4401 MAST RD |
| City | BOULDER |
| State | CO |
| Zip | 80301-3181 |
| Property Category | Vacant Land |
| Property Type | Vacant Land > Destroyed / Uninhabitable |
| Local Zoning Code | SR |
| Legal Description | OUTLOT 11 TWIN LAKES 2 REPLAT OF BLKS 10 11 & 12 |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 14 |
| Legal Subdivision | TWIN LAKES 1,2 & REPLATS - BOV |
| Legal Block | 10 |
| Legal Lot Number | 11 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 12708 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 1499 W 121ST AVE, 100, DENVER, CO 80234-3513 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 18, 1975 |
| Deed Sale | Feb 18, 1975 |
| Deed Document Number | 1975129493 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County assessment roll, as of June 15, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
Source: FEMA National Flood Hazard Layer, effective October 14, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 65% of the US · lower than 82% of Colorado |
|---|---|
| Wildfire Likelihood | 0.05% 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 334 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| CenturyLink DSL | 140 / 20 |
5G (outdoors only) and 4G LTE
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