Boulder County property record for 520 Aurora Ave, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 5,121 sqft · built 1961 |
| Lot Size | 0.519 acres (22,616 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $650,000 (Aug 1996) |
| Tax Bill | $19,083 (2025) |
| Deeds & Mortgages | Jun 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-36-4-28-006 |
| Primary APN | 1461-36-4-28-006 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 13 Rooms |
| Building Area | 5,121 sqft Living Area |
| Gross Area | 5,935 sqft |
| 1st Floor Area | 3,581 sqft |
| Basement Area | 1,540 sqft |
| Finished Basement | 1,540 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Split Level |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 22,616 sqft (0.519 acres) |
| Garage Type | Attached |
| Garage Area | 814 sqft |
| Parking Spaces | 3 Parking Spaces |
| Porch | Porch |
|---|---|
| Porch Area | 396 sqft |
| Deck Area | 404 sqft |
| Patio Area | 796 sqft |
| Heating System | Hot Water |
|---|
| Account Number | R0066599 |
|---|---|
| Street Address | 520 AURORA AVE |
| City | BOULDER |
| State | CO |
| Zip | 80302-7128 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 11 SPACKMANS |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 36 |
| Legal Subdivision | SPACKMANS - BO |
| Legal Block | 3 |
| Legal Lot Number | 11 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3030 |
| Census Tract | 12201 |
Source: Boulder County records, as of September 18, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 520 AURORA AVE, BOULDER, CO 80302-7128 |
| Owner Type | Company |
| Vesting | Life Tenant |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 16, 1996 · Amount on Record |
| Deed Sale | Aug 16, 1996 · Amount on Record |
| Prior Sale | Jul 10, 1989 · Amount on Record |
| Deed Document Number | 19961634949 |
| Last Transfer Date | Feb 24, 2012 |
| Transfer Doc | 0003212273 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 520 AURORA AVE, BOULDER, CO 80302-7128 |
| Document Number | 0003789662 |
| Instrument Date | Jun 3, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Jul 24, 2020 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 520 AURORA AVE BOULDER CO 803027128, BOULDER, CO 80302-7128 |
| Document Number | 0003789662 |
|---|---|
| Date | Jun 8, 2020 |
| Instrument | 3789662 |
| Name | ELEVATIONS CU |
|---|---|
| Address | BOULDER, CO 80301 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 240 Months |
| Due | Jun 7, 2040 |
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 | $219,796 (+6.49%) Land $177,214 Building $42,582 | $3,302,300 (-) Land $2,676,100 Building $626,200 | |
| 2025 | $19,083.00 (-10.73%) | $206,394 (-6.24%) Land $167,256 Building $39,138 | $3,302,300 (+0.51%) Land $2,676,100 Building $626,200 |
| 2023 | $21,377.00 (-8.37%) | $220,122 (-2.27%) Land $172,559 Building $47,563 | $3,285,400 (+1.38%) Land $2,575,500 Building $709,900 |
| 2022 | $23,330.00 | $225,236 Land $145,582 Building $79,654 | $3,240,800 Land $2,094,700 Building $1,146,100 |
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 minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 34 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 34 in force |
| Nearby Flood Claims | 29 (1983–2025) |
| Claims Outside the SFHA | 10 of 29 |
| Most Recent Claim | Apr 2025 · 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 74% of the US · above 72% of Colorado |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 550 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 · DSL in parts of the area | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Magnolia Road Internet Cooperative, Verizon.
5G (outdoors only) and 4G LTE
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