Boulder County property record for 145 S 33rd St, Boulder, CO 80305
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1.75 ba · 1,326 sqft · built 1955 |
| Lot Size | 0.18 acres (7,841 sqft) |
| Owner | Individual Name on File |
| Last Sale | $181,000 (Feb 1998) |
| Tax Bill | $4,576 (2025) |
| Deeds & Mortgages | Sep 2026 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 1577-05-3-10-012 |
| Primary APN | 1577-05-3-10-012 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,326 sqft Living Area |
| 1st Floor Area | 1,326 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Ranch |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 7,841 sqft (0.18 acres) |
| Garage Type | Detached |
| Garage Area | 336 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 261 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0010759 |
|---|---|
| Street Address | 145 S 33RD ST |
| City | BOULDER |
| State | CO |
| Zip | 80305-3425 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 14 BLK 4 MARTIN ACRES 1 |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 05 |
| Legal Subdivision | MARTIN ACRES 1 - BO |
| Legal Block | 4 |
| Legal Lot Number | 14 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 12507 |
145 S 33rd St is owned and occupied by an individual who acquired it in September 2026.
Source: Boulder County records, as of October 16, 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 | 145 S 33RD ST, BOULDER, CO 80305-3425 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 23, 1998 · Amount on File |
| Deed Sale | Feb 23, 1998 · Amount on File |
| Prior Sale | Jan 24, 1979 · Amount on File |
| Deed Document Number | 19981774025 |
| Last Transfer Date | Sep 8, 2026 |
| Transfer Doc | 0004147028 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Sep 14, 2026 |
| Property Address | 145 S 33RD ST, BOULDER, CO 80305-3425 |
| Document Number | 0004147028 |
| Instrument Date | Sep 8, 2026 |
| Instrument | 20264147028 |
| Transaction Type | Transfer |
| Record Updated | Sep 23, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 145 S 33RD ST, BOULDER, CO 80305-3425 |
| Investor | Possibly a Property Investor |
The 2025 property tax bill for 145 S 33rd St was $4,576.
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 | $47,457 (-1.12%) Land $34,965 Building $12,492 | $767,900 (-) Land $584,200 Building $183,700 | |
| 2025 | $4,576.00 | $47,994 Land $36,513 Building $11,481 | $767,900 Land $584,200 Building $183,700 |
| 2023 | $4,611.00 (+11.54%) | $56,213 (+28.59%) Land $42,786 Building $13,427 | $839,000 (+33.39%) Land $638,600 Building $200,400 |
| 2022 | $4,134.00 | $43,716 Land $31,734 Building $11,982 | $629,000 Land $456,600 Building $172,400 |
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 145 S 33rd St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2013.
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 | 9 in force |
| Nearby Flood Claims | 1 (2013) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
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 145 S 33rd St is low, with a 0.05% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 63% of the US · lower than 80% of Colorado |
|---|---|
| Wildfire Likelihood | 0.05% annual chance |
| Exposure | None beyond 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 515 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| CenturyLink Fiber · DSL in parts of the area | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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