Boulder County property record for 4621 18th St, #B6, Boulder, CO 80304
| Property Type | Condominium |
|---|---|
| Details | 2 bd · 1.5 ba · 1,284 sqft · built 1999 |
| Lot Size | 0.001 acres (25 sqft) |
| Owner | Individual Name on File |
| Last Sale | $162,136 (Apr 2026) |
| Tax Bill | $319 (2025) |
| Deeds & Mortgages | Apr 2026 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-07-0-12-006 |
| Primary APN | 1463-07-0-12-006 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 4 Rooms |
| Building Area | 1,284 sqft Living Area |
| 1st Floor Area | 405 sqft |
| Upper Floors Area | 447 sqft |
| Basement Area | 432 sqft |
| Finished Basement | 432 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Architectural Style | Condo/Apartment |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 25 sqft (0.001 acres) |
| Porch | Porch |
| Porch Area | 28 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0143156 |
|---|---|
| Street Address | 4621 18TH ST, B6 |
| City | BOULDER |
| State | CO |
| Zip | 80304-4356 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Legal Description | IMPS ONLY UNIT B6 BUENA VISTA CONDOS 2ND PHASE & UND 2.65% INT IN GCE SEE ID 143163 FOR LAND |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 07 |
| Legal Subdivision | BUENA VISTA CONDOS 2ND PHASE - BO |
| Legal Block | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 12105 |
4621 18th St, #B6 is owned by an individual who bought it in April 2026.
Source: Boulder County records, as of September 18, 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 | Individual Name on File |
|---|---|
| Mailing Address | 4621 18TH ST, B6, BOULDER, CO 80304-4356 |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 9, 2026 · Amount on File |
| Deed Sale | Apr 9, 2026 · Amount on File |
| Prior Sale | Dec 30, 2004 |
| Deed Document Number | 20264127408 |
| Prior Transfer Date | Dec 23, 2004 |
| Prior Transfer Doc | 0002654655 |
| Record Updated | Oct 29, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Apr 9, 2026 |
| Property Address | 4621 18TH ST, B6, BOULDER, CO 80304-4356 |
| Document Number | 0004127408 |
| Instrument Date | Apr 1, 2026 |
| Instrument | 20264127408 |
| Transaction Type | Transfer |
| Record Updated | Apr 22, 2026 |
| Title Company | LAND TITLE |
| Amount | Amount on Record |
|---|---|
| Tax | $1,637.21 |
| Amount Accuracy | Calculated from Transfer Tax |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
| Document Number | 0004127409, |
|---|---|
| Instrument | 20264127409 |
| Name | THISTLE COMMUNITY HSNG |
|---|
| Type | Stand-Alone First Mortgage |
|---|
| Rate | 5.98% |
|---|---|
| Max Rate | -1% |
The 2025 property tax bill for 4621 18th St, #B6 was $319, up 99.4% from the year before.
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 | $6,560 (-2.07%) Building $6,560 | $107,189 (-) Building $107,189 | |
| 2025 | $319.00 (+99.38%) | $6,699 Building $6,699 | $107,189 Building $107,189 |
| 2024 | $160.00 (+1.91%) | ||
| 2023 | $157.00 (-52.13%) | $7,340 (+3.69%) Building $7,340 | $109,559 (+7.56%) Building $109,559 |
| 2022 | $328.00 | $7,079 Building $7,079 | $101,856 Building $101,856 |
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 4621 18th St, #B6 in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1982.
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 |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 1 (1982) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jul 1982 · tidal / storm surge |
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 4621 18th St, #B6 is moderate, ranking above 61% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 61% of the US · above 49% of Colorado |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect 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 748 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 | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| CenturyLink DSL · Fiber in parts of the area | 140 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: T-Mobile.
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