Boulder County property record for 4725 Spine Rd, Boulder, CO 80301
| Property Type | Vacant Land |
|---|---|
| Lot Size | 3.46 acres (151,023 sqft) |
| Owner | Company Name on Record |
| Last Sale | $10,650,000 (Nov 2021) |
| Tax Bill | $108,939 (2023) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-10-0-03-003 |
| Primary APN | 1463-10-0-03-003 |
|---|---|
| Alternative APNs |
|
| Lot Area | 151,023 sqft (3.46 acres) |
|---|
| Account Number | R0109714 |
|---|---|
| Old Parcel Number | 0109714 |
| Street Address | 4725 SPINE RD |
| City | BOULDER |
| State | CO |
| Zip | 80301-6747 |
| Property Category | Vacant Land |
| Property Type | Vacant Land > Uncategorized |
| Local Zoning Code | 0300 |
| Legal Description | LOT 3 HERBARIA REPLAT A |
| Legal Range | 70 |
| Legal Township | 01N |
| Legal Section | 10 |
| Legal Subdivision | HERBARIA REPLAT A - BO |
| Legal Block | 3 |
| Legal Lot Number | 3 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3011 |
| Census Tract | 12705 |
Source: Boulder County records, as of February 26, 2024
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 | 335 OAKWOOD PL, BOULDER, CO 80304-1047 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 5, 2021 · Amount on Record |
| Deed Sale | Nov 5, 2021 · Amount on Record |
| Deed Document Number | 03927621 |
| Record Updated | Jun 7, 2026 |
Source: Boulder County assessment roll, as of August 25, 2023
| 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 |
|---|---|---|---|
| 2023 | $108,939.00 (+142.16%) | $1,261,478 (+160.4%) Land $1,261,478 | $4,521,428 (+170.66%) Land $4,521,428 |
| 2022 | $44,987.00 | $484,445 Land $484,445 | $1,670,500 Land $1,670,500 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
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 66% of the US · lower than 83% of Colorado |
|---|---|
| Wildfire Likelihood | 0.05% 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 24 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
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