Boulder County property record for 1833 Folsom St, Boulder, CO 80302
| Property Type | Apartment House (2-4 Units) |
|---|---|
| Details | 38 bd · 38 ba · 20,730 sqft · built 1969 |
| Lot Size | 1.01 acres (44,008 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,070,000 (May 1982) |
| Tax Bill | $52,458 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 1463-30-4-49-039 |
| Primary APN | 1463-30-4-49-039 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 38 Beds |
|---|---|
| Full Baths | 38 Baths |
| Total Rooms | 87 Rooms |
| Units | 59 Units |
| Building Area | 20,730 sqft Living Area |
| 1st Floor Area | 6,910 sqft |
| Upper Floors Area | 13,820 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1969 |
|---|---|
| Effective Year Built | Effective 1969 |
| Exterior Material | Combination |
| Construction Type | Frame |
| Lot Area | 44,008 sqft |
| Deck Area | 4,230 sqft |
| Heating System | Hot Water |
|---|
| Account Number | R0006993 |
|---|---|
| Street Address | 1833 FOLSOM ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-5710 |
| Property Category | Commercial |
| Property Type | Residential > Multi-Unit > Apartment House (2-4 Units) |
| Legal Description | LOTS 15 16 17 18 & S 25 FT LOT 19 & PT LOTS 26 & 27 & TRI IN SE CORNER LOT 14 & SE TRI LOT 13 & PT LOT 14 BLK B BOULDER EAST O T & .041 AC R/W THROUGH BLK 9 CULVER IDS 85394 85393 6993 COMB HERE OWNER REQ 86 |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 30 |
| Legal Subdivision | BOULDER O T EAST & WEST & NORTH - BO |
| Legal Block | B |
| Legal Lot Number | 15 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2013 |
| Census Tract | 12205 |
Source: Boulder County records, as of September 18, 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 | Company Name on Record |
|---|---|
| Mailing Address | 2737 MAPLETON AVE, 102, BOULDER, CO 80304-3836 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 5, 1982 · Amount on Record |
| Deed Sale | May 5, 1982 · Amount on Record |
| Prior Sale | Apr 15, 1980 · Amount on Record |
| Deed Document Number | 1982493317-18 |
| Record Updated | Oct 29, 2026 |
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 | $567,120 (-13.57%) Land $129,907 Building $437,213 | $8,410,000 (-19.9%) Land $1,980,400 Building $6,429,600 | |
| 2025 | $52,458.00 (+14.2%) | $656,194 (+31.15%) Land $123,775 Building $532,419 | $10,499,100 (+40.6%) Land $1,980,400 Building $8,518,700 |
| 2024 | $45,934.00 (+1.93%) | ||
| 2023 | $45,064.00 (-5.41%) | $500,323 (+2.19%) Land $93,800 Building $406,523 | $7,467,500 (+3.72%) Land $1,400,000 Building $6,067,500 |
| 2022 | $47,641.00 | $489,600 Land $104,584 Building $385,016 | $7,200,000 Land $1,538,000 Building $5,662,000 |
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 AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 31 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 64 units insured incl. 33 condo units |
| Nearby Flood Claims | 6 (2013) |
| Claims Outside the SFHA | 2 of 6 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| 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 | Not rated no burnable land within 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 85 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 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: CenturyLink, Verizon.
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