Boulder County property record for 4656 Macarthur Ln, Boulder, CO 80303
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.25 ba · 1,914 sqft · built 1978 |
| Lot Size | 0.05 acres (2,176 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $3,748 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage Sep 2019 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 1463-33-2-12-011 |
| Primary APN | 1463-33-2-12-011 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.25 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,914 sqft Living Area |
| Gross Area | 2,858 sqft |
| 1st Floor Area | 944 sqft |
| Upper Floors Area | 970 sqft |
| Basement Area | 944 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1978 |
| Architectural Style | Townhouse |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 2,176 sqft (0.05 acres) |
| Garage Type | Detached |
| Garage Area | 576 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 112 sqft |
| Patio Area | 328 sqft |
| Heating Fuel | Electric |
|---|
| Account Number | R0077976 |
|---|---|
| Street Address | 4656 MACARTHUR LN |
| City | BOULDER |
| State | CO |
| Zip | 80303-1140 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 11 MACARTHUR PARK |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 33 |
| Legal Subdivision | MACARTHUR PARK - BO |
| Legal Block | 3 |
| Legal Lot Number | 11 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 12603 |
4656 Macarthur Ln is owned and occupied by two individuals who acquired it in September 2001.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4656 MACARTHUR LN, BOULDER, CO 80303-1140 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Oct 14, 2020 | Deed of Trust, Mortgage · VA Mortgage USAA FSB |
| Sep 9, 2019 | Deed of Trust, Mortgage · FHA Mortgage MR COOPER |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 27, 1992 |
| Deed Sale | May 27, 1992 |
| Prior Sale | Jul 7, 1986 · Amount on File |
| Deed Document Number | 19921187629 |
| Last Transfer Date | Sep 6, 2001 |
| Transfer Doc | 0002194465 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 4656 MACARTHUR LN, BOULDER, CO 80303-1140 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0003824233 |
|---|---|
| Date | Oct 14, 2020 |
| Instrument | 3824233 |
| Name | USAA FSB |
|---|---|
| Type | Bank |
| Address | SAN ANTONIO, TX 78288 |
| Type | VA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 358 Months |
| Due | Aug 1, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 4656 MACARTHUR LN, BOULDER, CO 80303-1140 |
| Document Number | 0003735899 |
| Instrument Date | Sep 9, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Sep 24, 2019 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 4656 MACARTHUR LN BOULDER CO 803031140, BOULDER, CO 80303-1140 |
| Document Number | 0003735899 |
|---|---|
| Date | Sep 13, 2019 |
| Instrument | 3735899 |
| Name | MR COOPER |
|---|---|
| Address | COPPELL, TX 75019 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Sep 12, 2049 |
The 2025 property tax bill for 4656 Macarthur Ln was $3,748.
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 | $44,812 (-1.65%) Land $15,178 Building $29,634 | $729,000 (-) Land $293,200 Building $435,800 | |
| 2025 | $3,748.00 | $45,563 Land $18,325 Building $27,238 | $729,000 Land $293,200 Building $435,800 |
| 2023 | $3,086.00 (+6.86%) | $46,130 (+21.21%) Land $22,847 Building $23,283 | $688,500 (+25.73%) Land $341,000 Building $347,500 |
| 2022 | $2,888.00 | $38,059 Land $16,868 Building $21,191 | $547,600 Land $242,700 Building $304,900 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4656 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 4656 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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