Boulder County property record for 355 31st St, Boulder, CO 80305 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,104 sqft · built 1955 |
| Lot Size | 0.144 acres (6,273 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $169,500 (Dec 1998) |
| Tax Bill | $4,170 (2025) |
| Deeds & Mortgages | Feb 2017 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 1577-05-2-10-036 |
| Primary APN | 1577-05-2-10-036 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,104 sqft Living Area |
| 1st Floor Area | 1,104 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Ranch |
| Exterior Material | Combination |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 6,273 sqft (0.144 acres) |
| Garage Type | Carport |
| Garage Area | 180 sqft |
| Carport | Carport |
| Carport Area | 180 sqft |
| Patio Area | 160 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0008761 |
|---|---|
| Street Address | 355 31ST ST |
| City | BOULDER |
| State | CO |
| Zip | 80305-3404 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 36 BLK 10 HIGHLAND PARK 1 |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 05 |
| Legal Subdivision | HIGHLAND PARK 1 - BO |
| Legal Block | 10 |
| Legal Lot Number | 36 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 12507 |
Source: Boulder County records · APN 1577-05-2-10-036
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 355 31ST ST, BOULDER, CO 80305-3404 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Dec 03, 1998 · Amount on Record |
| Deed Sale | Dec 03, 1998 · Amount on Record |
| Prior Sale | May 08, 1992 · Amount on Record |
| Deed Document Number | 19981878026 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 355 31ST ST, BOULDER, CO 80305-3404 |
| Document Number | 0003578310 |
| Instrument Date | Feb 03, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Mar 16, 2017 |
| Name | Verified Name |
|---|---|
| Address | 355 31ST ST BOULDER CO 803053404, BOULDER, CO 80305-3404 |
| Document Number | 0003578310 |
|---|---|
| Date | Mar 03, 2017 |
| Instrument | 3578310 |
| Name | BLUE FCU |
|---|---|
| Address | CHEYENNE, WY 82003-3200 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
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, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $47,594 (+8.8%) Land $29,356 Building $18,238 | $699,900 (-) Land $431,700 Building $268,200 | |
| 2025 | $4,170.00 (+3.55%) | $43,744 (-13.06%) Land $26,981 Building $16,763 | $699,900 (-6.8%) Land $431,700 Building $268,200 |
| 2023 | $4,027.00 (+10.97%) | $50,317 (+28.75%) Land $31,738 Building $18,579 | $751,000 (+33.56%) Land $473,700 Building $277,300 |
| 2022 | $3,629.00 | $39,080 Land $24,040 Building $15,040 | $562,300 Land $345,900 Building $216,400 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures