Boulder County property record for 10 S 33rd St, Boulder, CO 80305
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,280 sqft · built 1955 |
| Lot Size | 0.155 acres (6,748 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $820,000 (May 2022) |
| Tax Bill | $4,144 (2025) |
| Deeds & Mortgages | May 2022 Sale & Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 1577-05-3-11-001 |
| Primary APN | 1577-05-3-11-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,280 sqft Living Area |
| Gross Area | 1,566 sqft |
| 1st Floor Area | 1,280 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1974 |
| Architectural Style | Ranch |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 6,748 sqft (0.155 acres) |
| Garage Type | Attached |
| Garage Area | 286 sqft |
| Parking Spaces | 1 Parking Space |
| Patio Area | 250 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0010519 |
|---|---|
| Street Address | 10 S 33RD ST |
| City | BOULDER |
| State | CO |
| Zip | 80305-3424 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 1 BLK 5 MARTIN ACRES 1 |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 05 |
| Legal Subdivision | MARTIN ACRES 1 - BO |
| Legal Block | 5 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2017 |
| Census Tract | 12507 |
Source: Boulder County records, as of September 18, 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 | 10 S 33RD ST, BOULDER, CO 80305-3424 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 9, 2022 · Amount on Record |
| Deed Sale | May 9, 2022 · Amount on Record |
| Prior Sale | Sep 26, 2000 · Amount on Record |
| Deed Document Number | 20223961087 |
| Prior Transfer Date | Apr 15, 2011 |
| Prior Transfer Doc | 0003146877 |
| Record Updated | Oct 29, 2026 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | May 9, 2022 |
| Property Address | 10 S 33RD ST, BOULDER, CO 80305-3424 |
| Document Number | 0003961087 |
| Instrument Date | May 6, 2022 |
| Instrument | 3961087 |
| Transaction Type | Transfer |
| Record Updated | May 24, 2022 |
| Title Company | FIRST AMERICAN |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $82.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 10 S 33RD ST, BOULDER, CO 80305-3424 |
| Document Number | 0003961088 |
|---|---|
| Date | May 9, 2022 |
| Instrument | 3961088 |
| Name | ELEVATIONS CU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 1, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 4.37% |
| Adjustable | Adjustable Rate Rider |
| Type Change Date | Jun 1, 2032 |
| Change Frequency | Annually |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 9.37% |
| Index | Other |
| Max Rate | 9.37% |
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 | $42,565 (-2.08%) Land $29,067 Building $13,498 | $695,500 (-) Land $497,000 Building $198,500 | |
| 2025 | $4,144.00 (+4.23%) | $43,469 (-12.6%) Land $31,063 Building $12,406 | $695,500 (-6.3%) Land $497,000 Building $198,500 |
| 2023 | $3,976.00 (+16.7%) | $49,735 (+35.53%) Land $36,214 Building $13,521 | $742,300 (+40.59%) Land $540,500 Building $201,800 |
| 2022 | $3,407.00 | $36,696 Land $27,008 Building $9,688 | $528,000 Land $388,600 Building $139,400 |
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.
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 65% of the US · lower than 82% of Colorado |
|---|---|
| Wildfire Likelihood | 0.03% 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 451 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 | 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 |
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