Boulder County property record for 9578 Mountain Ridge Dr, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 4,912 sqft · built 2023 |
| Lot Size | 1.99 acres (87,009 sqft) |
| Owner | Trust Name on File |
| Last Sale | $5,500,000 (May 2026) |
| Tax Bill | $2,676 (2025) |
| Deeds & Mortgages | Jul 2026 Mortgage Jul 2026 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 1319-12-0-01-014 |
| Primary APN | 1319-12-0-01-014 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Half Baths | 3 Half Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 4,912 sqft Living Area |
| Gross Area | 5,860 sqft |
| 1st Floor Area | 2,877 sqft |
| Basement Area | 2,256 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 2023 |
|---|---|
| Effective Year Built | Effective 2023 |
| Architectural Style | Ranch |
| Exterior Material | Composition Siding |
| Construction Type | Frame |
| Roof Material | Metal |
| Lot Area | 87,009 sqft (1.99 acres) |
| Garage Type | Attached |
| Garage Area | 727 sqft |
| Parking Spaces | 3 Parking Spaces |
| Porch | Slab |
| Porch Area | 128 sqft |
| Deck Area | 304 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0109308 |
|---|---|
| Street Address | 9578 MOUNTAIN RIDGE DR |
| City | BOULDER |
| State | CO |
| Zip | 80302-9369 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A |
| Legal Description | LOT 14 BLK 1 MOUNTAIN RIDGE |
| Legal Range | 71 |
| Legal Township | 2N |
| Legal Section | 12 |
| Legal Subdivision | MOUNTAIN RIDGE |
| Legal Block | 1 |
| Legal Lot Number | 14 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 1 |
| Census Block | 1065 |
| Census Tract | 13601 |
9578 Mountain Ridge Dr is owner-occupied and held in a trust since July 2026.
Source: Boulder County records, as of October 16, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 9578 MOUNTAIN RIDGE DR, BOULDER, CO 80302-9369 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jul 27, 2026 | Quit Claim Deed, Transfer · Conventional Mortgage JPMORGAN CHASE BANK |
| Jul 27, 2026 | Quit Claim Deed, Transfer FIRST ALLIANCE TITLE |
| May 26, 2026 | Warranty Deed, Subdivision Related Transfer FIRST ALLIANCE TITLE |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 26, 2026 · Amount on File |
| Deed Sale | May 26, 2026 · Amount on File |
| Prior Sale | Jan 27, 2025 · Amount on File |
| Deed Document Number | 20264133315 |
| Last Transfer Date | Jul 20, 2026 |
| Transfer Doc | 0004141463 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jul 27, 2026 |
| Property Address | 9578 MOUNTAIN RIDGE DR, BOULDER, CO 80302-9369 |
| Document Number | 0004141462 |
| Instrument Date | Jul 20, 2026 |
| Instrument | 20264141462 |
| Transaction Type | Transfer |
| Record Updated | Aug 31, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Trust |
| Address | 9578 MOUNTAIN RIDGE DR, BOULDER, CO 80302-9369 |
| Document Number | 0004141466, |
|---|---|
| Date | Jul 27, 2026 |
| Instrument | 20264141466 |
| Name | JPMORGAN CHASE BANK |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Aug 1, 2056 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.25% |
| Initial Type | Adjustable Rate |
| Adjustable | Adjustable Rate Rider |
| Max Rate | -1% |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jul 27, 2026 |
| Property Address | 9578 MOUNTAIN RIDGE DR, BOULDER, CO 80302-9369 |
| Document Number | 0004141463 |
| Instrument Date | Jul 20, 2026 |
| Instrument | 20264141463 |
| Transaction Type | Transfer |
| Record Updated | Aug 31, 2026 |
| Title Company | FIRST ALLIANCE TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Trust |
| Address | 9578 MOUNTAIN RIDGE DR, BOULDER, CO 80302-9369 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | May 26, 2026 |
| Property Address | 9578 MOUNTAIN RIDGE DR, BOULDER, CO 80302-9369 |
| Document Number | 0004133315 |
| Instrument Date | May 22, 2026 |
| Instrument | 20264133315 |
| Transaction Type | Subdivision Related Transfer |
| Record Updated | Aug 29, 2026 |
| Title Company | FIRST ALLIANCE TITLE |
| Amount | Amount on Record |
|---|---|
| Tax | $55,550.00 |
| Amount Accuracy | Calculated from Transfer Tax |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 9578 MOUNTAIN RIDGE DR, BOULDER, CO 80302-9369 |
The 2025 property tax bill for 9578 Mountain Ridge Dr was $2,676, up 36.7% from the year before.
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Unified School District | St. Vrain Valley School District RE 1J (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $23,140 (-2.08%) Land $23,140 | $378,100 (-) Land $378,100 | |
| 2025 | $2,676.00 (+36.67%) | $23,631 Land $23,631 | $378,100 Land $378,100 |
| 2024 | $1,958.00 (+1.29%) | ||
| 2023 | $1,933.00 (-10.13%) | $22,591 (+13.26%) Land $22,591 | $337,185 (+17.49%) Land $337,185 |
| 2022 | $2,151.00 | $19,947 Land $19,947 | $287,000 Land $287,000 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
FEMA maps place 9578 Mountain Ridge Dr in Zone X, an area of minimal flood risk, though there have been 16 flood claims nearby since 2004.
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 11 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 11 in force |
| Nearby Flood Claims | 16 (2004–2013) |
| Claims Outside the SFHA | 10 of 16 |
| 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.
Wildfire risk around 9578 Mountain Ridge Dr is high, ranking above 71% of the US, with a 0.4% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 71% of the US · above 66% of Colorado |
|---|---|
| Wildfire Likelihood | 0.4% 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 | LEFT HAND WD serves 20,280 people · EPA ID CO0107471 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2022 |
| Lead | 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 10 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 | 1,200 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
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