Boulder County property record for 4020 Aurora Ave, Boulder, CO 80303
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.75 ba · 1,788 sqft · built 1965 |
| Lot Size | 0.233 acres (10,128 sqft) |
| Owner | Individual Name on File |
| Last Sale | $732,000 (Mar 2021) |
| Tax Bill | $5,597 (2025) |
| Deeds & Mortgages | Mar 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-33-3-14-012 |
| Primary APN | 1463-33-3-14-012 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Building Area | 1,788 sqft Living Area |
| Gross Area | 2,244 sqft |
| 1st Floor Area | 924 sqft |
| Basement Area | 864 sqft |
| Finished Basement | 864 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1982 |
| Architectural Style | Bi-Level |
| Exterior Material | Wood Shingle |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 10,128 sqft (0.233 acres) |
| Garage Type | Attached |
| Garage Area | 264 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Enclosed Porch |
| Porch Area | 192 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0010714 |
|---|---|
| Street Address | 4020 AURORA AVE |
| City | BOULDER |
| State | CO |
| Zip | 80303-2542 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 12 BLK 3 PARK EAST |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 33 |
| Legal Subdivision | PARK EAST - BO |
| Legal Block | 3 |
| Legal Lot Number | 12 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 12608 |
4020 Aurora Ave is owned by an individual who bought it in March 2021.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 328 34TH AVE, SANTA CRUZ, CA 95062-5512 |
| 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 | Mar 3, 2021 · Amount on File |
| Deed Sale | Mar 3, 2021 · Amount on File |
| Prior Sale | Feb 11, 2013 · Amount on File |
| Deed Document Number | 20213864031 |
| Record Updated | Oct 29, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Mar 3, 2021 |
| Property Address | 4020 AURORA AVE, BOULDER, CO 80303-2542 |
| Document Number | 0003864031 |
| Instrument Date | Mar 1, 2021 |
| Instrument | 3864031 |
| Transaction Type | Transfer |
| Record Updated | Mar 31, 2022 |
| Title Company | A-TEAM TITLE SERVICES, TEAM TITLE SERVICES LLC |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $73.20 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 546 KELSANDO CIR, 546, FRIDAY HARBOR, WA 98250-9271 |
| Name | Verified Name |
|---|---|
| Address | 4020 AURORA AVE, BOULDER, CO 80303-2542 |
| Document Number | 0003864032 |
|---|---|
| Date | Mar 3, 2021 |
| Instrument | 3864032 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Mar 1, 2051 |
The 2025 property tax bill for 4020 Aurora Ave was $5,597.
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 | $59,106 (+0.69%) Land $36,768 Building $22,338 | $939,200 (-) Land $610,700 Building $328,500 | |
| 2025 | $5,597.00 | $58,700 Land $38,169 Building $20,531 | $939,200 Land $610,700 Building $328,500 |
| 2023 | $5,272.00 (+11.32%) | $64,735 (+26.92%) Land $44,756 Building $19,979 | $966,200 (+31.65%) Land $668,000 Building $298,200 |
| 2022 | $4,736.00 | $51,006 Land $32,130 Building $18,876 | $733,900 Land $462,300 Building $271,600 |
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.
FEMA maps place 4020 Aurora Ave in Zone X, an area of minimal flood risk, though there have been 8 flood claims nearby since 2013.
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 42 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 42 in force |
| Nearby Flood Claims | 8 (2013) |
| Claims Outside the SFHA | 6 of 8 |
| Most Recent Claim | Oct 2013 · other causes |
| 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 4020 Aurora Ave 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 584 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| CenturyLink Fiber | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
May also be available: T-Mobile.
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