Boulder County property record for 3520 Arthur Ct, Boulder, CO 80304
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 6 bd · 4 ba · 3,188 sqft · built 1972 |
| Lot Size | 0.201 acres (8,774 sqft) |
| Owner | Company Name on File |
| Last Sale | $1,534,791 (Jul 2024) |
| Tax Bill | $7,800 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-20-2-05-020 |
| Primary APN | 1463-20-2-05-020 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 12 Rooms |
| Units | 8 Units |
| Building Area | 3,188 sqft Living Area |
| Gross Area | 3,678 sqft |
| 1st Floor Area | 1,629 sqft |
| Upper Floors Area | 1,559 sqft |
| Basement Area | 490 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1972 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 8,774 sqft (0.201 acres) |
| Deck Area | 42 sqft |
| Heating System | Hot Water |
|---|
| Account Number | R0511232 |
|---|---|
| Street Address | 3520 ARTHUR CT |
| City | BOULDER |
| State | CO |
| Zip | 80304-2010 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | LOT 17 SHERWOOD ESTATES 1ST ADDITION |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 20 |
| Legal Subdivision | SHERWOOD ESTATES 1 - BO |
| Legal Block | 3 |
| Legal Lot Number | 17 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 12103 |
Source: Boulder County records · APN 1463-20-2-05-020
Assessment roll updated June 15, 2026 · Last verified June 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 | 3520 ARTHUR CT, BOULDER, CO 80304-2010 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jul 01, 2024 · Amount on Record |
| Deed Sale | Jul 01, 2024 · Amount on Record |
| Prior Sale | Oct 10, 2006 · Amount on Record |
| Deed Document Number | 20244052337 |
| Prior Transfer Date | Oct 03, 2006 |
| Prior Transfer Doc | 0002809192 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $89,005 (+8.8%) Land $59,024 Building $29,981 | $1,308,900 (-) Land $868,000 Building $440,900 | |
| 2025 | $7,800.00 (-0.4%) | $81,806 (-11.85%) Land $54,250 Building $27,556 | $1,308,900 (-5.5%) Land $868,000 Building $440,900 |
| 2024 | $7,831.00 (-2.06%) | ||
| 2023 | $7,996.00 (+17.52%) | $92,802 (+32.5%) Land $61,640 Building $31,162 | $1,385,100 (+34.48%) Land $920,000 Building $465,100 |
| 2022 | $6,804.00 | $70,040 Land $44,608 Building $25,432 | $1,030,000 Land $656,000 Building $374,000 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130121033, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 28 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 58 units insured incl. 30 condo units |
| Nearby Flood Claims | 18 (1995–2022) |
| Claims Outside the SFHA | 9 of 18 |
| Most Recent Claim | Oct 2022 · rainfall accumulation |
| Claims by Event |
|
| Wildfire Risk | Low lower than 80% of the US · lower than 91% of Colorado |
|---|---|
| Wildfire Likelihood | 0.01% 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, availability as of December 31, 2025 · sampled at 288 locations within half a mile · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Fixed Wireless | 2,500 / 2,500 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Live Wire Networks Fixed Wireless | 250 / 100 |
| Lumen Technologies DSL · Fiber in parts of the area | 140 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: Verizon.
Source: EPA Safe Drinking Water Information System via ECHO, 2026 Q3 · EPA community water system boundaries v3.0, 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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