Boulder County property record for 1633 4th St, Apt B, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,257 sqft · built 1975 |
| Lot Size | 0.021 acres (922 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $85,000 (Aug 1985) |
| Tax Bill | $4,415 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-36-2-03-004 |
| Primary APN | 1461-36-2-03-004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 7 Rooms |
| Building Area | 1,257 sqft Living Area |
| Gross Area | 1,477 sqft |
| 1st Floor Area | 514 sqft |
| Upper Floors Area | 229 sqft |
| Basement Area | 514 sqft |
| Finished Basement | 514 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1975 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Townhouse |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 922 sqft (0.021 acres) |
| Garage Type | Attached |
| Garage Area | 220 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 68 sqft |
| Heating Fuel | Electric |
|---|
| Account Number | R0069040 |
|---|---|
| Street Address | 1633 4TH ST, B |
| City | BOULDER |
| State | CO |
| Zip | 80302-5839 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PLOT B PARCEL A REDWOOD TOWNHOUSES UNAPPROVED PLAT OF TRS 429A & 430A 36-1N-71 |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 36 |
| Legal Subdivision | REDWOOD TOWNHOUSES - BO |
| Legal Tract | 429A,430A |
| Legal Block | A |
| Legal Lot Number | B |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2015 |
| Census Tract | 12201 |
Source: Boulder County records, as of June 15, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 2150 LINDEN DR, BOULDER, CO 80304-0477 |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 2, 1985 · Amount on Record |
| Deed Sale | Aug 2, 1985 · Amount on Record |
| Prior Sale | Mar 13, 1979 · Amount on Record |
| Deed Document Number | 1985703480 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County assessment roll, as of June 15, 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 | $49,463 (+8.8%) Land $27,411 Building $22,052 | $727,400 (-) Land $403,100 Building $324,300 | |
| 2025 | $4,415.00 (+12.28%) | $45,463 (-5.98%) Land $25,194 Building $20,269 | $727,400 (+0.79%) Land $403,100 Building $324,300 |
| 2023 | $3,932.00 (-2.72%) | $48,354 (+13.18%) Land $25,835 Building $22,519 | $721,700 (+17.41%) Land $385,600 Building $336,100 |
| 2022 | $4,042.00 | $42,722 Land $21,712 Building $21,010 | $614,700 Land $312,400 Building $302,300 |
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 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| 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 |
|
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 | 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 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 331 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 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: CenturyLink, Verizon.
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