Boulder County property record for 413 W William St, Superior, CO 80027
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 5 ba · 4,622 sqft · built 2022 |
| Lot Size | 0.153 acres (6,678 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $2,100,000 (Jan 2023) |
| Tax Bill | $9,420 (2025) |
| Deeds & Mortgages | Apr 2026 Line of Credit Nov 2021 Line of Credit + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 1577-24-0-58-001 |
| Primary APN | 1577-24-0-58-001 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 5 Baths |
| Half Baths | 3 Half Baths |
| Total Rooms | 14 Rooms |
| Building Area | 4,622 sqft Living Area |
| Gross Area | 5,193 sqft |
| 1st Floor Area | 1,780 sqft |
| Basement Area | 1,643 sqft |
| Finished Basement | 1,072 sqft |
| Unfinished Basement | 571 sqft |
| Year Built | Built 2022 |
|---|---|
| Effective Year Built | Effective 2022 |
| Exterior Material | Combination |
| Roof Material | Asphalt |
| Lot Area | 6,678 sqft (0.153 acres) |
| Garage Type | Detached |
| Garage Area | 648 sqft |
| Total Buildings | 2 Buildings |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0615165 |
|---|---|
| Street Address | 413 W WILLIAM ST |
| City | SUPERIOR |
| State | CO |
| Zip | 80027-9649 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 7A WEST ADDITION TO SUPERIOR REPLAT A |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 24 |
| Legal Subdivision | SUPERIOR WEST REPLAT A |
| Legal Block | 1 |
| Legal Lot Number | 7A |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1020 |
| Census Tract | 60602 |
413 W William St is owned and occupied by two individuals who bought it in January 2023.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 413 W WILLIAM ST, SUPERIOR, CO 80027-9649 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Apr 27, 2026 | Deed of Trust, Mortgage · Line of Credit ELEVATIONS CREDIT UNION |
| Nov 22, 2021 | Deed of Trust, Mortgage · Line of Credit FIRSTBANK |
| Jan 24, 2023 | Special Warranty Deed, Subdivision Related Transfer · Conventional Mortgage MORGAN STANLEY PRIVATE BANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 24, 2023 · Amount on File |
| Deed Sale | Jan 24, 2023 · Amount on File |
| Deed Document Number | 20233995452 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Apr 27, 2026 |
| Property Address | 413 W WILLIAM ST, SUPERIOR, CO 80027-9649 |
| Document Number | 0004129347 |
| Instrument Date | Apr 2, 2026 |
| Instrument | 20264129347 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | COMMONWEALTH LAND TITLE INSURANCE, COMMONWEALTH LAND TITLE |
| Name | Verified Name |
|---|---|
| Address | 413 W WILLIAM ST, SUPERIOR, CO 80027-9649 |
| Investor | Possibly a Property Investor |
| Document Number | 0004129347, |
|---|---|
| Date | Apr 27, 2026 |
| Instrument | 20264129347 |
| Name | ELEVATIONS CREDIT UNION |
|---|
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 240 Months |
| Due | May 1, 2046 |
| Rate | 6% |
|---|---|
| Max Rate | -1% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 413 W WILLIAM ST, SUPERIOR, CO 80027-9649 |
| Transaction Type | Mortgage |
| Record Updated | Feb 9, 2026 |
| Name | Verified Name |
|---|
| Document Number | 0003929759 |
|---|---|
| Date | Nov 22, 2021 |
| Instrument | 3929759 |
| Name | FIRSTBANK |
|---|---|
| Type | Bank |
| Address | DENVER, CO 80215 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 12 Months |
| Due | Nov 2, 2022 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jan 24, 2023 |
| Property Address | 413 W WILLIAM ST, SUPERIOR, CO 80027-9649 |
| Document Number | 0003995452 |
| Instrument Date | Jan 20, 2023 |
| Instrument | 3995452 |
| Transaction Type | Subdivision Related Transfer |
| Record Updated | Feb 9, 2026 |
| Title Company | LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $210.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 305 S 3RD AVE, SUPERIOR, CO 80027-9603 |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 413 W WILLIAM ST, SUPERIOR, CO 80027-9649 |
| Investor | Possibly a Property Investor |
| Document Number | 0003995453 |
|---|---|
| Date | Jan 24, 2023 |
| Instrument | 3995453 |
| Name | MORGAN STANLEY PRIVATE BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Feb 1, 2053 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.15% |
| Adjustable | Adjustable Rate Rider |
| Type Change Date | Feb 1, 2033 |
| Change Frequency | 6 Months |
| Min Rate At Change | 3% |
| Max Rate At Change | 10.1% |
| Index | Other |
| Margin | 3 |
| Max Rate | 10.1% |
The 2025 property tax bill for 413 W William St was $9,420, up 8.4% from the year before.
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Superior Town |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $87,475 (+3.18%) Land $21,032 Building $66,443 | $1,356,400 (-) Land $379,300 Building $977,100 | |
| 2025 | $9,420.00 (+8.41%) | $84,775 Land $23,706 Building $61,069 | $1,356,400 Land $379,300 Building $977,100 |
| 2024 | $8,689.00 (-29.63%) | ||
| 2023 | $12,348.00 (+170.67%) | $120,835 (+177.04%) Land $120,835 | $433,102 (+187.97%) Land $433,102 |
| 2022 | $4,562.00 | $43,616 Land $43,616 | $150,400 Land $150,400 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
FEMA maps place 413 W William St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2013.
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 |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 1 (2013) |
| 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.
Wildfire risk around 413 W William St is moderate, ranking above 64% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 64% of the US · above 55% of Colorado |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 | SUPERIOR MD NO 1 serves 17,900 people · EPA ID CO0107725 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Feb 2025 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | Treatment failure resolved · Dec 2021 |
|---|---|
| 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 225 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| CenturyLink Fiber · DSL in parts of the area | 2,000 / 1,000 |
| LiveWireNet Fixed Wireless | 250 / 100 |
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