Boulder County property record for 321 Seward St, Lyons, CO 80540 · Last verified June 2026
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
|---|---|
| Bedrooms | 6 Beds |
| Bathrooms | 3 Baths |
| Architecture Style | A-Frame |
| Year Built | Built 1958 |
| Square Footage | 3,286 sqft Living Area |
| Lot Size | 10,404 sqft (0.239 acres) |
| Last Sale | $850,000 (2024) |
| Tax Bill | $5,630.00 (2025) |
| Primary APN | 1203-18-1-09-002 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 12 Rooms |
| Building Area | 3,286 sqft Living Area |
| Gross Area | 3,362 sqft Gross Area |
| 1st Floor | 1,806 sqft 1st Floor |
| Upper Floors | 864 sqft Upper Floors |
| Basement Area | 940 sqft Basement |
| Finished Basement | 940 sqft Finished |
| Stories | 1 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | A-Frame Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Lot Area | 10,404 sqft (0.239 acres) |
| Total Buildings | 3 Total Buildings |
|---|---|
| Shed | 1 Shed |
| Porch | Enclosed Porch |
| Porch Area | 160 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0050080 |
|---|---|
| Street Address | 321 SEWARD ST |
| City | LYONS |
| State | CO |
| Zip | 80540-5047 |
| Property Usage | Residential Property Usage |
| Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | LOT 9 BLK 2 NORTONVILLE |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | NORTONVILLE - LY |
| Legal Block | 2 |
| Legal Lot Number | 9 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | LONGMONT |
| Census Blockgroup | 3 |
| Census Block | 3000 |
| Census Tract | 13601 |
Source: Boulder County records · APN 1203-18-1-09-002
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 | 321 SEWARD ST, 325, LYONS, CO 80540-5047 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Sep 03, 2024 · Amount on Record |
| Deed Sale | Sep 03, 2024 · Amount on Record |
| Prior Sale | Nov 29, 1991 |
| Deed Doc Number | 20244058855 |
| Prior Transfer Date | Nov 25, 1996 |
| Prior Transfer Doc | 0001661624 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Sep 03, 2024 |
| Property Address | 321 SEWARD ST, LYONS, CO 80540-5047 |
| Document Number | 0004058855 |
| Instrument Date | Aug 23, 2024 |
| Instrument | 4058855 |
| Transaction Type | Transfer |
| Record Updated | Feb 09, 2026 |
| Title Company | FIRST AMERICAN TITLE, FIRST AMERICAN MORTGAGE SLN |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $85.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 6650 GUNPARK DR STE 200, 200, BOULDER, CO 80301-7003 |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 321 SEWARD ST # 325, 325, LYONS, CO 80540-5047 |
| Document Number | 0004058856 |
|---|---|
| Date | Sep 03, 2024 |
| Instrument | 4058856 |
| Name | SYNERGY ONE LENDING |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Sep 01, 2054 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Lyons Town |
| Unified School District | St. Vrain Valley School District RE 1J (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 | $52,380 (+26.58%) Land $5,372 Building $47,008 | $770,300 (+16.34%) Land $79,000 Building $691,300 | |
| 2025 | $5,630.00 (+5.63%) | $41,381 (-15.76%) Land $4,938 Building $36,443 | $662,100 (-9.7%) Land $79,000 Building $583,100 |
| 2023 | $5,330.00 (+25%) | $49,124 (+42.03%) Land $4,583 Building $44,541 | $733,200 (+47.33%) Land $68,400 Building $664,800 |
| 2022 | $4,264.00 | $34,587 Land $4,198 Building $30,389 | $497,650 Land $60,400 Building $437,250 |
321 Seward St is in FEMA Zone X, outside the Special Flood Hazard Area, with indirect wildfire exposure (High risk).
Source: FEMA National Flood Hazard Layer · Boulder County (08013C), updated October 14, 2026
| FEMA Flood Zone | Zone X minimal flood hazard · outside the 0.2% annual chance floodplain |
|---|---|
| Special Flood Hazard Area | No |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | High 75th percentile of exposed land nationally · 74th in Colorado |
|---|---|
| Wildfire Likelihood | High — about 1 in 316 per year |
| Exposure | Indirect within ember reach of burnable land |
Values are read at the parcel center point; lenders make the official flood determination.
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