Ada County property record for 421 S 8th St, Boise, ID 83702
| Property Type | Commercial Office |
|---|---|
| Details | 1,585 sqft · built 1929 |
| Lot Size | 0.036 acres (1,585 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $4,908 (2025) |
| Deeds & Mortgages | Jan 2021 Line of Credit Aug 2019 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | R3650760220 |
| Primary APN | R3650760220 |
|---|
| Stories | 3 Stories |
|---|---|
| Building Area | 1,585 sqft Gross Area |
| 1st Floor Area | 1,585 sqft |
| Year Built | Built 1929 |
|---|---|
| Effective Year Built | Effective 2021 |
| Lot Area | 1,585 sqft (0.036 acres) |
| Street Address | 421 S 8TH ST |
|---|---|
| City | BOISE |
| State | ID |
| Zip | 83702-7106 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | C-5HD |
| Legal Description | UNIT C-102 HISTORIC COMPLICATION CONDO |
| Legal Range | 02E |
| Legal Township | 03N |
| Legal Section | 10 |
| Legal Subdivision | HISTORIC COMPLICATION CONDO |
| Jurisdiction | ADA ID |
| Township / Civil Division | BOISE CITY |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 101 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the South Eighth Street Historic District listed 1977 · 21 contributing resources · NRIS 77000450 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Source: Ada County records, as of August 7, 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 | Company Name on Record |
|---|---|
| Mailing Address | 421 S 8TH ST, BOISE, ID 83702-7106 |
| Owner Type | Company |
| Date | Document |
|---|---|
| Jan 11, 2021 | Deed of Trust, Mortgage · Line of Credit IDAHO CENTRAL CU |
| Aug 29, 2019 | Warranty Deed, Transfer BANK OF THE WEST |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ADA ID |
| Property Address | 421 S 8TH ST, BOISE, ID 83702-7106 |
| Transaction Type | Mortgage |
| Record Updated | Sep 6, 2022 |
| Title Company | TITLEONE BOISE |
| Name | Verified Name |
|---|
| Document Number | 0000005223 |
|---|---|
| Date | Jan 11, 2021 |
| Instrument | 2021-005223 |
| Name | IDAHO CENTRAL CU |
|---|---|
| Type | Credit Union |
| Address | POCATELLO, ID 83202 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | ADA ID |
| Recording Date | Aug 29, 2019 |
| Property Address | 421 S 8TH ST, BOISE, ID 83702-7106 |
| Document Number | 0000080771 |
| Instrument Date | Aug 27, 2019 |
| Instrument | 80771 |
| Transaction Type | Transfer |
| Record Updated | Sep 9, 2019 |
| Title Company | TITLEONE BOISE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 855 W BROAD ST #300 BOISE ID 837027154, 300, BOISE, ID 83702-7154 |
| Document Number | 80772 |
|---|---|
| Date | Aug 29, 2019 |
| Instrument | 80772 |
| Name | BANK OF THE WEST |
|---|---|
| Type | Bank |
| Address | BOISE, ID 83704 |
| Amount | Amount Recorded |
|---|---|
| Term | 120 Months |
| Due | Aug 28, 2029 |
Source: Ada County assessment roll, as of August 7, 2026
| Type | Name |
|---|---|
| State | Idaho |
| County | Ada County |
| Municipality | Boise City |
| Unified School District | Boise City Independent School District 1 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $542,900 (+1.93%) | $542,900 (+1.93%) | |
| 2025 | $4,908.00 (+4.63%) | $532,600 (-47.44%) | $532,600 (-47.44%) |
| 2024 | $4,691.00 (+20.75%) | ||
| 2023 | $1,013,400 Building $1,013,400 | $1,013,400 Building $1,013,400 | |
| 2022 | $3,885.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective October 4, 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 |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 4 in force |
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 | 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 | VEOLIA WATER IDAHO private · serves 264,978 people · EPA ID ID4010016 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2025 |
| Lead | 2 ppb (2026) 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 148 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sparklight Cable | 1,000 / 50 |
| White Cloud Communications Fixed Wireless | 200 / 50 |
May also be available: Anthem Broadband, AT&T, CenturyLink, T-Mobile, Verizon.
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