Boulder County property record for 1645 9th St, #4, Boulder, CO 80302
| Property Type | Condominium |
|---|---|
| Details | 2 bd · 1.5 ba · 1,128 sqft · built 1979 |
| Lot Size | 0.215 acres (9,343 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $505,000 (Jun 2020) |
| Tax Bill | $5,594 (2025) |
| Deeds & Mortgages | Jun 2020 Sale & Mortgage |
| Flood Zone | Zone AE (high risk) |
| APN | 1461-36-1-50-004 |
| Primary APN | 1461-36-1-50-004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 4 Rooms |
| Building Area | 1,128 sqft Living Area |
| 1st Floor Area | 998 sqft |
| Upper Floors Area | 130 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1979 |
| Architectural Style | Townhouse |
| Exterior Material | Combination |
| Construction Type | Frame |
| Lot Area | 9,343 sqft (0.215 acres) |
| Garage Type | Carport |
| Garage Area | 160 sqft |
| Carport | Carport |
| Carport Area | 160 sqft |
| Porch | Porch |
| Porch Area | 98 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0087908 |
|---|---|
| Street Address | 1645 9TH ST, 4 |
| City | BOULDER |
| State | CO |
| Zip | 80302-6044 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Legal Description | UNIT 4 SOLAR SIX CONDOS & UND 1/6 INT COMMON ELEMENTS |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 36 |
| Legal Subdivision | SOLAR SIX CONDOS - BO |
| Legal Block | 2 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2013 |
| Census Tract | 12201 |
Source: Boulder County records, as of October 1, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 1645 9TH ST, 4, BOULDER, CO 80302-6044 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 9, 2020 · Amount on Record |
| Deed Sale | Jun 9, 2020 · Amount on Record |
| Prior Sale | Aug 6, 2007 · Amount on Record |
| Deed Document Number | 20203789930 |
| Record Updated | Oct 29, 2026 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jun 9, 2020 |
| Property Address | 1645 9TH ST # 4, 4, BOULDER, CO 80302-6044 |
| Document Number | 0003789930 |
| Instrument Date | Jun 8, 2020 |
| Instrument | 3789930 |
| Transaction Type | Transfer |
| Record Updated | Jul 26, 2022 |
| Title Company | LAND TITLE GUARANTEE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $50.50 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 1845 9TH ST # ST4, 1845, BOULDER, CO 80302-5147 |
| Name | Verified Name |
|---|---|
| Address | 1845 9TH ST # 4, 4, BOULDER, CO 80302-5147 |
| Document Number | 0003789931 |
|---|---|
| Date | Jun 9, 2020 |
| Instrument | 3789931 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Address | OWENSBORO, KY 42301 |
| Type | Second Mortgage (Down Payment) |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jul 1, 2050 |
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 | $58,154 (+0.57%) Building $58,154 | $925,200 (-) Building $925,200 | |
| 2025 | $5,594.00 (+19.3%) | $57,825 (-0.28%) Building $57,825 | $925,200 (+6.91%) Building $925,200 |
| 2023 | $4,689.00 (+12.04%) | $57,985 (+28.65%) Building $57,985 | $865,441 (+33.45%) Building $865,441 |
| 2022 | $4,185.00 | $45,071 Building $45,071 | $648,500 Building $648,500 |
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 AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | Yes |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 26 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 41 units insured incl. 15 condo units |
| Nearby Flood Claims | 19 (1983–2014) |
| Claims Outside the SFHA | 7 of 19 |
| Most Recent Claim | Jul 2014 · rainfall accumulation |
| 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 | Moderate above 61% of the US · above 48% of Colorado |
|---|---|
| Wildfire Likelihood | 0.2% 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 426 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless · Fiber in parts of the area | 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 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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