Boulder County property record for 5131 Williams Fork Trl, Boulder, CO 80301
| Property Type | Apartment House (2-4 Units) |
|---|---|
| Details | 564 bd · 304,116 sqft · built 1968 |
| Lot Size | 23.6 acres (1,030,781 sqft) |
| Owner | Company Name on File |
| Tax Bill | $639,751 (2025) |
| Deeds & Mortgages | Apr 2023 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-11-2-02-012 |
| Primary APN | 1463-11-2-02-012 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 564 Beds |
|---|---|
| Half Baths | 192 Half Baths |
| Total Rooms | 1228 Rooms |
| Units | 332 Units |
| Building Area | 304,116 sqft Living Area |
| 1st Floor Area | 152,058 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1968 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 1,030,781 sqft |
| Deck Area | 9,348 sqft |
| Patio Area | 11,486 sqft |
| Total Buildings | 2 Buildings |
| Cooling System | Central |
|---|---|
| Heating System | Hot Water |
| Account Number | R0031888 |
|---|---|
| Street Address | 5131 WILLIAMS FORK TRL |
| City | BOULDER |
| State | CO |
| Zip | 80301-3401 |
| Property Category | Commercial |
| Property Type | Residential > Multi-Unit > Apartment House (2-4 Units) |
| Local Zoning Code | MF |
| Legal Description | TRACTS A & B & C GUN BARREL GREEN 2 REPLAT & 16 FT VAC WILLIAMS FORK TRAIL ADJ AKA STONEGATE TOWNHOMES CONDOS PHASES 2 & 3 |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 11 |
| Legal Subdivision | GUNBARREL GREEN REPLAT 2 - BOV |
| Legal Tract | A |
| Legal Block | 1 |
| Legal Lot Number | A |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 12705 |
Source: Boulder County assessment roll, APN 1463-11-2-02-012, as of June 15, 2026 · Last verified July 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 | 4582 S ULSTER ST, DENVER, CO 80237-2632 |
| Owner Type | Company |
| Vesting | Partnership |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jun 08, 1995 |
| Deed Sale | Jun 08, 1995 |
| Prior Sale | Jun 06, 1985 · Amount on Record |
| Deed Document Number | 19951522528 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 5131 WILLIAMS FORK TRL, BOULDER, CO 80301-3401 |
| Transaction Type | Mortgage |
| Record Updated | Apr 27, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0004004457 |
|---|---|
| Date | Apr 20, 2023 |
| Instrument | 4004457 |
| Name | PNC BANK NA |
|---|---|
| Type | Bank |
| Address | AGOURA HILLS, CA 91301 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
Source: Boulder County assessment roll as of June 15, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| 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 | $6,998,560 (+8.8%) Land $958,283 Building $6,040,277 | $102,920,000 (-) Land $14,092,400 Building $88,827,600 | |
| 2025 | $639,751.00 (+20.71%) | $6,432,500 (+9.72%) Land $880,775 Building $5,551,725 | $102,920,000 (+17.62%) Land $14,092,400 Building $88,827,600 |
| 2023 | $530,009.00 (-5.44%) | $5,862,500 (+1.43%) Land $482,400 Building $5,380,100 | $87,500,000 (+2.94%) Land $7,200,000 Building $80,300,000 |
| 2022 | $560,479.00 | $5,780,000 Land $489,600 Building $5,290,400 | $85,000,000 Land $7,200,000 Building $77,800,000 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), as of October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130127051, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Low lower than 94% of the US · lower than 97.8% of Colorado |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| 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, 163 locations within half a mile, as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Fixed Wireless | 2,500 / 2,500 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Live Wire Networks Fixed Wireless | 250 / 100 |
| Lumen Technologies DSL | 140 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Source: EPA Safe Drinking Water Information System, water system CO0107152, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF BOULDER serves 166,080 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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