Boulder County property record for 1628 4th St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,904 sqft · built 1925 |
| Lot Size | 0.139 acres (6,060 sqft) |
| Owner | Company Name on File |
| Last Sale | $89,500 (Nov 1987) |
| Tax Bill | $8,412 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-36-1-03-028 |
| Primary APN | 1461-36-1-03-028 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,904 sqft Living Area |
| 1st Floor Area | 1,400 sqft |
| Upper Floors Area | 504 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 6,060 sqft (0.139 acres) |
| Porch | Porch |
| Porch Area | 98 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0003790 |
|---|---|
| Street Address | 1628 4TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-5809 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | N 50 FT OF S 100 FT LOT 6 & N 50 FT OF S 100 FT OF W 20 FT LOT 5 BLK C HIGHLAND LAWN |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 36 |
| Legal Subdivision | HIGHLAND LAWN - BO |
| Legal Block | C |
| Legal Lot Number | 5 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 12201 |
Source: Boulder County records · APN 1461-36-1-03-028
Assessment roll updated June 15, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1230 LAFARGE ST, LOUISVILLE, CO 80027 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Nov 02, 1987 · Amount on Record |
| Deed Sale | Nov 02, 1987 · Amount on Record |
| Prior Sale | Oct 03, 1975 · Amount on Record |
| Deed Document Number | 1987886484 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $95,071 (+8.8%) Land $70,271 Building $24,800 | $1,398,100 (-) Land $1,033,400 Building $364,700 | |
| 2025 | $8,412.00 (+7.82%) | $87,382 (-6.21%) Land $64,588 Building $22,794 | $1,398,100 (+0.54%) Land $1,033,400 Building $364,700 |
| 2023 | $7,802.00 (+6.5%) | $93,170 (+19.32%) Land $66,236 Building $26,934 | $1,390,600 (+23.77%) Land $988,600 Building $402,000 |
| 2022 | $7,326.00 | $78,083 Land $55,676 Building $22,407 | $1,123,500 Land $801,100 Building $322,400 |
Source: FEMA National Flood Hazard Layer as of October 14, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| 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 |
|
| Wildfire Risk | High above 82% of the US · above 85% of Colorado |
|---|---|
| Wildfire Likelihood | 0.5% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Fixed Wireless | 2,500 / 2,500 |
| Xfinity Cable | 2,000 / 250 |
| Live Wire Networks Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: Lumen Technologies, Verizon.
Based on FCC filings for 331 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF BOULDER serves 166,080 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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