Boulder County property record for 645 1st Ave, Lyons, CO 80540 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 2.5 Baths |
| Year Built | Built 2003 |
| Square Footage | 2,551 sqft Living Area |
| Lot Size | 7,568 sqft (0.174 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $1,039,500 (2025) |
| Tax Bill | $8,848.00 (2025) |
| Primary APN | 1203-18-4-53-003 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 8 Rooms |
| Building Area | 2,551 sqft Living Area |
| Gross Area | 3,247 sqft Gross Area |
| 1st Floor | 1,037 sqft 1st Floor |
| Upper Floors | 1,173 sqft Upper Floors |
| Basement Area | 341 sqft Basement |
| Finished Basement | 341 sqft Finished |
| Stories | 2 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 2003 |
|---|---|
| Effective Year Built | Effective 2003 |
| Architectural Style | A-Frame Style |
| Exterior Material | Combination Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 7,568 sqft (0.174 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 696 sqft Garage |
| Deck Area | 198 sqft Deck |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Account Number | R0503791 |
|---|---|
| Street Address | 645 1ST AVE |
| City | LYONS |
| State | CO |
| Zip | 80540-5076 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 3 BLK 2 TURNER & REED |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | TURNER & REED - LY |
| Legal Block | 2 |
| Legal Lot Number | 3 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | LONGMONT |
| Census Blockgroup | 2 |
| Census Block | 2031 |
| Census Tract | 13601 |
Source: Boulder County records · APN 1203-18-4-53-003
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 | Individual Name on File |
|---|---|
| Mailing Address | 645 1ST AVE, LYONS, CO 80540-5076 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Dec 27, 2021 | Intrafamily Transfer, Transfer |
| Jan 22, 2020 | Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Oct 07, 2020 | Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20254098699 |
| Prior Transfer Date | Jul 23, 2021 |
| Prior Transfer Doc | 0003936960 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Dec 27, 2021 |
| Property Address | 645 1ST AVE, LYONS, CO 80540 |
| Document Number | 0003936960 |
| Instrument Date | Jul 23, 2021 |
| Instrument | 3936960 |
| Transaction Type | Transfer |
| Record Updated | Jan 17, 2022 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Zero or No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 645 1ST AVE, LYONS, CO 80540 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 645 1ST AVE, LYONS, CO 80540 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|
| Document Number | 0003761810 |
|---|---|
| Date | Jan 22, 2020 |
| Instrument | 3761810 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Feb 01, 2035 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 645 1ST AVE, LYONS, CO 80540 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|
| Document Number | 0003822011 |
|---|---|
| Date | Oct 07, 2020 |
| Instrument | 3822011 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | Oct 01, 2035 |
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 | $70,754 (+8.8%) Land $4,556 Building $66,198 | $1,040,500 (-) Land $67,000 Building $973,500 | |
| 2025 | $8,848.00 (+12.53%) | $65,032 (-6.84%) Land $4,188 Building $60,844 | $1,040,500 (-0.13%) Land $67,000 Building $973,500 |
| 2024 | $7,863.00 (+1.37%) | ||
| 2023 | $7,757.00 (+23.4%) | $69,808 (+36.9%) Land $3,893 Building $65,915 | $1,041,900 (+42.01%) Land $58,100 Building $983,800 |
| 2022 | $6,286.00 | $50,992 Land $3,558 Building $47,434 | $733,700 Land $51,200 Building $682,500 |
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