Boulder County property record for 5140 Sioux Dr, Boulder, CO 80303
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.75 ba · 2,282 sqft · built 1965 |
| Lot Size | 0.206 acres (8,959 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,464,973 (May 2022) |
| Tax Bill | $6,464 (2025) |
| Deeds & Mortgages | May 2022 Sale & Line of Credit |
| Flood Zone | Zone X (moderate risk) |
| APN | 1577-04-4-09-001 |
| Primary APN | 1577-04-4-09-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Building Area | 2,282 sqft Living Area |
| Gross Area | 3,286 sqft |
| 1st Floor Area | 1,322 sqft |
| Basement Area | 1,092 sqft |
| Finished Basement | 960 sqft |
| Unfinished Basement | 132 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | Bi-Level |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 8,959 sqft (0.206 acres) |
| Garage Type | Attached |
| Garage Area | 572 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Enclosed Porch |
|---|---|
| Porch Area | 420 sqft |
| Deck Area | 100 sqft |
| Patio Area | 200 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0015521 |
|---|---|
| Street Address | 5140 SIOUX DR |
| City | BOULDER |
| State | CO |
| Zip | 80303-4124 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 1 BLK 8 KEEWAYDIN MEADOWS |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 04 |
| Legal Subdivision | KEEWAYDIN MEADOWS & RESUB - BO |
| Legal Block | 8 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1018 |
| Census Tract | 12501 |
Source: Boulder County records, as of September 30, 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 Record |
|---|---|
| Mailing Address | 5140 SIOUX DR, BOULDER, CO 80303-4124 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 16, 2022 · Amount on Record |
| Deed Sale | May 16, 2022 · Amount on Record |
| Prior Sale | Jan 28, 1991 · Amount on Record |
| Deed Document Number | 20223962472 |
| Record Updated | Oct 29, 2026 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | May 16, 2022 |
| Property Address | 5140 SIOUX DR, BOULDER, CO 80303-4124 |
| Document Number | 0003962472 |
| Instrument Date | May 9, 2022 |
| Instrument | 3962472 |
| Transaction Type | Transfer |
| Record Updated | Jun 1, 2022 |
| Title Company | LAND TITLE GUARANTEE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $146.50 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 5140 SIOUX DR, BOULDER, CO 80303-4124 |
| Document Number | 0003962351 |
|---|---|
| Date | May 16, 2022 |
| Instrument | 3962351 |
| Name | PREMIER MEMBERS CU |
|---|---|
| Type | Credit Union |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | May 25, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
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 | $69,006 (+1.78%) Land $40,643 Building $28,363 | $1,084,800 (-) Land $667,700 Building $417,100 | |
| 2025 | $6,464.00 (+3.34%) | $67,800 (-10.94%) Land $41,731 Building $26,069 | $1,084,800 (-4.52%) Land $667,700 Building $417,100 |
| 2023 | $6,255.00 (+30.12%) | $76,126 (+47.05%) Land $50,009 Building $26,117 | $1,136,200 (+52.53%) Land $746,400 Building $389,800 |
| 2022 | $4,807.00 | $51,770 Land $35,952 Building $15,818 | $744,900 Land $517,300 Building $227,600 |
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.
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 AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 94 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 430 units insured incl. 336 condo units |
| Nearby Flood Claims | 95 (2013) |
| Claims Outside the SFHA | 84 of 95 |
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 91% of Colorado |
|---|---|
| Wildfire Likelihood | 0.02% 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 339 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 |
| CenturyLink DSL | 140 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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