Boulder County property record for 3473 28th St, Apt 9, Boulder, CO 80301
| Property Type | Condominium |
|---|---|
| Details | 1 bd · 1.5 ba · 791 sqft · built 1985 |
| Lot Size | 0.001 acres (25 sqft) |
| Owner | Individual Name on File |
| Last Sale | $147,500 (Sep 2007) |
| Tax Bill | $2,103 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-20-2-53-009 |
| Primary APN | 1463-20-2-53-009 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 791 sqft Living Area |
| 1st Floor Area | 791 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Condo/Apartment |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 25 sqft (0.001 acres) |
| Deck Area | 65 sqft |
| Patio Area | 285 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0103326 |
|---|---|
| Street Address | 3473 28TH ST, 9 |
| City | BOULDER |
| State | CO |
| Zip | 80301-1598 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Legal Description | UNIT 9 & UND 3.687 INT GCE VALENCIA PLACE CONDOS |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 20 |
| Legal Subdivision | VALENCIA PLACE CONDOS - BO |
| Legal Block | 3 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3009 |
| Census Tract | 12103 |
3473 28th St, Apt 9 is owned and occupied by an individual who bought it in September 2007.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 3473 28TH ST, 9, BOULDER, CO 80301-1598 |
| 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.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 24, 2007 · Amount on File |
| Deed Sale | Sep 24, 2007 · Amount on File |
| Prior Sale | Oct 19, 2000 · Amount on File |
| Deed Document Number | 20072884902 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 3473 28th St, Apt 9 was $2,103.
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 | $21,604 (-2.08%) Building $21,604 | $353,000 (-) Building $353,000 | |
| 2025 | $2,103.00 | $22,063 Building $22,063 | $353,000 Building $353,000 |
| 2023 | $1,697.00 (-6.66%) | $23,344 (+19.24%) Building $23,344 | $348,418 (+23.68%) Building $348,418 |
| 2022 | $1,818.00 | $19,578 Building $19,578 | $281,700 Building $281,700 |
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 3473 28th St, Apt 9 in Zone X, an area of minimal flood risk, though there have been 18 flood claims nearby since 1995.
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 28 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 58 units insured incl. 30 condo units |
| Nearby Flood Claims | 18 (1995–2022) |
| Claims Outside the SFHA | 9 of 18 |
| Most Recent Claim | Oct 2022 · 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.
The area around 3473 28th St, Apt 9 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 288 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 · Fiber in parts of the area | 2,000 / 250 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| CenturyLink DSL · Fiber in parts of the area | 140 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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