Boulder County property record for 3646 57th St, Boulder, CO 80301
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 2,636 sqft · built 1974 |
| Lot Size | 1.04 acres (45,339 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $825,000 (Apr 2023) |
| Tax Bill | $6,695 (2025) |
| Deeds & Mortgages | Apr 2023 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-22-2-03-009 |
| Primary APN | 1463-22-2-03-009 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,636 sqft Living Area |
| Gross Area | 4,125 sqft |
| 1st Floor Area | 2,012 sqft |
| Upper Floors Area | 624 sqft |
| Basement Area | 676 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1974 |
|---|---|
| Effective Year Built | Effective 1974 |
| Exterior Material | Brick Veneer |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 45,339 sqft |
| Garage Type | Attached |
| Garage Area | 813 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 48 sqft |
| Cooling System | Evaporative |
|---|---|
| Heating Fuel | Electric |
| Account Number | R0037117 |
|---|---|
| Street Address | 3646 57TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80301-3000 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RR |
| Legal Description | LOT 19 RUSTIC KNOLLS |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 22 |
| Legal Subdivision | RUSTIC KNOLLS - BOV |
| Legal Block | 1 |
| Legal Lot Number | 19 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1010 |
| 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 | 3646 57TH ST, BOULDER, CO 80301-3000 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 17, 2023 · Amount on Record |
| Deed Sale | Apr 17, 2023 · Amount on Record |
| Prior Sale | Oct 23, 1996 · Amount on Record |
| Deed Document Number | 20234003957 |
| Prior Transfer Date | Oct 22, 1996 |
| Prior Transfer Doc | 0001652542 |
| Record Updated | Oct 29, 2026 |
| Document Type | Personal Representative Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Apr 17, 2023 |
| Property Address | 3646 57TH ST, BOULDER, CO 80301-3000 |
| Document Number | 0004003957 |
| Instrument Date | Apr 7, 2023 |
| Instrument | 4003957 |
| Transaction Type | Transfer |
| Record Updated | Apr 25, 2023 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $82.50 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 3646 57TH ST, BOULDER, CO 80301-3000 |
| Document Number | 0004003958 |
|---|---|
| Date | Apr 17, 2023 |
| Instrument | 4003958 |
| Name | AMERISAVE MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 1, 2053 |
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 | $67,973 (+1.68%) Land $30,056 Building $37,917 | $1,069,600 (-) Land $512,000 Building $557,600 | |
| 2025 | $6,695.00 (+10.13%) | $66,850 (-5.22%) Land $32,000 Building $34,850 | $1,069,600 (+1.61%) Land $512,000 Building $557,600 |
| 2023 | $6,079.00 (+18.18%) | $70,531 (+33.79%) Land $22,606 Building $47,925 | $1,052,700 (+38.79%) Land $337,400 Building $715,300 |
| 2022 | $5,144.00 | $52,716 Land $18,188 Building $34,528 | $758,500 Land $261,700 Building $496,800 |
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| 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 66% of the US · above 58% of Colorado |
|---|---|
| Wildfire Likelihood | 0.3% 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 | LEFT HAND WD serves 20,280 people · EPA ID CO0107471 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2022 |
| Lead | 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 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.
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