Boulder County property record for 3843 57th St, Boulder, CO 80301
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.25 ba · 3,323 sqft · built 1973 |
| Lot Size | 1.79 acres (78,024 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $800,000 (Nov 2012) |
| Tax Bill | $10,018 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 1463-15-0-00-028 |
| Primary APN | 1463-15-0-00-028 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Half Baths | 3 Half Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 3,323 sqft Living Area |
| 1st Floor Area | 3,323 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1973 |
|---|---|
| Effective Year Built | Effective 2020 |
| Architectural Style | Ranch |
| Exterior Material | Wood Shingle |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 78,024 sqft |
| Garage Type | Attached |
| Garage Area | 550 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
|---|---|
| Porch Area | 477 sqft |
| Deck Area | 294 sqft |
| Shed | 1 Shed |
| Total Buildings | 2 Buildings |
| Heating System | Hot Water |
|---|
| Account Number | R0036937 |
|---|---|
| Street Address | 3843 57TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80301-3017 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RR |
| Legal Description | TR 4661B LESS B1 1.7 AC M/L 15-1N-70 PER DEED 1042725 5/17/90 BCR |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 15 |
| Legal Subdivision | TR SOUTH CENTRAL NBR 145 820 |
| Legal Tract | 4661B |
| Legal Block | 1 |
| Legal Lot Number | 15 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 12707 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | PO BOX 18383, BOULDER, CO 80308-1383 |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 28, 2012 · Amount on Record |
| Deed Sale | Nov 28, 2012 · Amount on Record |
| Prior Sale | May 17, 1990 |
| Deed Document Number | 20123270093 |
| Prior Transfer Date | Sep 13, 2010 |
| Prior Transfer Doc | 0003099134 |
| Record Updated | Oct 29, 2026 |
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $111,126 (+4.33%) Land $48,355 Building $62,771 | $1,704,200 (-) Land $781,100 Building $923,100 | |
| 2025 | $10,018.00 (+28.65%) | $106,513 (+10.83%) Land $48,819 Building $57,694 | $1,704,200 (+18.81%) Land $781,100 Building $923,100 |
| 2023 | $7,787.00 (+17.5%) | $96,105 (+41.3%) Land $30,284 Building $65,821 | $1,434,400 (+46.58%) Land $452,000 Building $982,400 |
| 2022 | $6,627.00 | $68,013 Land $25,055 Building $42,958 | $978,600 Land $360,500 Building $618,100 |
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 | Yes |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 34 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 34 in force |
| Nearby Flood Claims | 31 (1992–2013) |
| Claims Outside the SFHA | 6 of 31 |
| 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 | Moderate above 67% of the US · above 60% of Colorado |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 34 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 | 1,200 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: CenturyLink, LiveWireNet.
5G and 4G LTE (outdoors only)
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