Boulder County property record for 1515 Mariposa Ave, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,768 sqft · built 1941 |
| Lot Size | 0.323 acres (14,088 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $975,000 (May 2015) |
| Tax Bill | $11,438 (2025) |
| Deeds & Mortgages | Aug 2022 Mortgage Dec 2020 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 1577-06-2-05-006 |
| Primary APN | 1577-06-2-05-006 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 2,768 sqft Living Area |
| Gross Area | 3,509 sqft |
| 1st Floor Area | 1,922 sqft |
| Upper Floors Area | 846 sqft |
| Basement Area | 405 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Multi-Level |
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 14,088 sqft (0.323 acres) |
| Garage Type | Attached |
| Garage Area | 336 sqft |
| Parking Spaces | 1 Parking Space |
| Patio Area | 528 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0000552 |
|---|---|
| Street Address | 1515 MARIPOSA AVE |
| City | BOULDER |
| State | CO |
| Zip | 80302-7944 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS 9-10 BLK 8 FLORAL PARK |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 06 |
| Legal Subdivision | FLORAL PARK & WEIHOFEN RESUB - BO |
| Legal Block | 8 |
| Legal Lot Number | 9 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 12505 |
1515 Mariposa Ave is owned and occupied by two individuals who bought it in May 2015.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1515 MARIPOSA AVE, BOULDER, CO 80302-7944 |
| Occupancy | Owner Occupied |
| 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.
| Date | Document |
|---|---|
| Aug 24, 2022 | Deed of Trust, Mortgage · Commercial Mortgage ZB NA |
| Dec 14, 2020 | Deed of Trust, Mortgage · Conventional Mortgage CHERRY CREEK MORTGAGE CO INC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 29, 2015 · Amount on File |
| Deed Sale | May 29, 2015 · Amount on File |
| Prior Sale | Jul 18, 1988 · Amount on File |
| Deed Document Number | 20153449002 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 1515 MARIPOSA AVE, BOULDER, CO 80302-7944 |
| Transaction Type | Mortgage |
| Record Updated | Sep 6, 2022 |
| Name | Verified Name |
|---|---|
| Address | 1515 MARIPOSA AVE, BOULDER, CO 80302-7944 |
| Document Number | 0003978321 |
|---|---|
| Date | Aug 24, 2022 |
| Instrument | 3978321 |
| Name | ZB NA |
|---|---|
| Type | Bank |
| Address | WESTMINSTER, CO 80030 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 359 Months |
| Due | Jul 20, 2052 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 1515 MARIPOSA AVE, BOULDER, CO 80302-7944 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0003841743 |
|---|---|
| Date | Dec 14, 2020 |
| Instrument | 3841743 |
| Name | CHERRY CREEK MORTGAGE CO INC |
|---|---|
| Type | Mortgage Company |
| Address | ENGLEWOOD, CO 80111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jan 1, 2051 |
The 2025 property tax bill for 1515 Mariposa Ave was $11,438.
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 | $125,759 (+4.83%) Land $82,504 Building $43,255 | $1,919,400 (-) Land $1,283,300 Building $636,100 | |
| 2025 | $11,438.00 | $119,962 Land $80,206 Building $39,756 | $1,919,400 Land $1,283,300 Building $636,100 |
| 2023 | $10,057.00 (+5.6%) | $120,145 (+17.14%) Land $81,211 Building $38,934 | $1,793,200 (+21.51%) Land $1,212,100 Building $581,100 |
| 2022 | $9,524.00 | $102,568 Land $66,525 Building $36,043 | $1,475,800 Land $957,200 Building $518,600 |
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 1515 Mariposa Ave 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 AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 34 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 34 in force |
| Nearby Flood Claims | 17 (1980–2015) |
| Claims Outside the SFHA | 7 of 17 |
| Most Recent Claim | May 2015 · Severe Storms, Tornadoes, 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.
Wildfire risk around 1515 Mariposa Ave is moderate, ranking above 67% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 67% of the US · above 60% 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 481 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 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Magnolia Road Internet Cooperative.
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