Boulder County property record for 4622 Macarthur Ln, Boulder, CO 80303
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2.25 ba · 1,140 sqft · built 1981 |
| Lot Size | 0.019 acres (837 sqft) |
| Owner | Individual Name on File |
| Last Sale | $236,000 (Oct 2011) |
| Tax Bill | $3,419 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 1463-33-2-18-001 |
| Primary APN | 1463-33-2-18-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2.25 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 4 Rooms |
| Building Area | 1,140 sqft Living Area |
| 1st Floor Area | 600 sqft |
| Upper Floors Area | 540 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1981 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Townhouse |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Built-Up Asphalt |
| Lot Area | 837 sqft (0.019 acres) |
| Deck Area | 252 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0077981 |
|---|---|
| Street Address | 4622 MACARTHUR LN |
| City | BOULDER |
| State | CO |
| Zip | 80303-1140 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 16 MACARTHUR PARK REPLAT OF LOTS 16 17G 18 & 19 & PTS OUTLOTS B C & D |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 33 |
| Legal Subdivision | MACARTHUR PARK REPLAT - BO |
| Legal Block | 3 |
| Legal Lot Number | 16 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 12603 |
4622 Macarthur Ln is owned by an individual who bought it in October 2011.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 2885 ELM ST, DENVER, CO 80207-3060 |
| 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 | Name on Deed |
|---|---|
| Last Sale | Oct 5, 2011 · Amount on File |
| Deed Sale | Oct 5, 2011 · Amount on File |
| Prior Sale | Jul 29, 2003 · Amount on File |
| Deed Document Number | 20113175095 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4622 Macarthur Ln was $3,419.
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 | $34,290 (-2.08%) Land $9,212 Building $25,078 | $560,300 (-) Land $191,500 Building $368,800 | |
| 2025 | $3,419.00 | $35,019 Land $11,969 Building $23,050 | $560,300 Land $191,500 Building $368,800 |
| 2023 | $2,744.00 (+2.08%) | $34,599 (+22.92%) Land $14,392 Building $20,207 | $516,400 (+27.51%) Land $214,800 Building $301,600 |
| 2022 | $2,688.00 | $28,148 Land $10,571 Building $17,577 | $405,000 Land $152,100 Building $252,900 |
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.
FEMA maps place 4622 Macarthur Ln in Zone X, an area of moderate flood risk, within 100 ft of a high-risk flood zone.
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AO, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 31 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 31 in force |
| Nearby Flood Claims | 7 (2000–2013) |
| Claims Outside the SFHA | 5 of 7 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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.
The area around 4622 Macarthur Ln has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 103 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 · Fiber in parts of the area | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: CenturyLink.
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