Boulder County property record for 342 4th Ave, Lyons, CO 80540 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 1 Baths |
| Architecture Style | Ranch |
| Year Built | Built 2000 |
| Square Footage | 806 sqft Living Area |
| Lot Size | 10,426 sqft (0.239 acres) |
| Last Sale | $387,000 (2020) |
| Tax Bill | $5,314.00 (2025) |
| Primary APN | 1203-18-4-22-006 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 4 Rooms |
| Building Area | 806 sqft Living Area |
| 1st Floor | 806 sqft 1st Floor |
| Stories | 1 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | Ranch Style |
| Exterior Material | Aluminum/Vinyl Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 10,426 sqft (0.239 acres) |
| Total Buildings | 2 Total Buildings |
| Shed | 1 Shed |
| Patio Area | 72 sqft Patio |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Account Number | R0050392 |
|---|---|
| Street Address | 342 4TH AVE |
| City | LYONS |
| State | CO |
| Zip | 80540-5059 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 12 & W 1/2 LOT 11 BLK 24 LYONS |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | LYONS - LY |
| Legal Block | 24 |
| Legal Lot Number | 12 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | LONGMONT |
| Census Blockgroup | 3 |
| Census Block | 3023 |
| Census Tract | 13601 |
Source: Boulder County records · APN 1203-18-4-22-006
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 | PO BOX 1663, LYONS, CO 80540-1663 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Apr 25, 2022 | Deed of Trust, Mortgage · Line of Credit FIRSTBANK |
| Jan 08, 2020 | Warranty Deed, Transfer · Conventional Mortgage FIRSTBANK |
| Jul 03, 2017 | Warranty Deed, Transfer · Conventional Mortgage with Private Mortgage Insurance (PMI) CITYWIDE HMS LNS |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20203759312 |
| Prior Transfer Date | Jul 23, 2008 |
| Prior Transfer Doc | 0002950746 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 342 4TH AVE, LYONS, CO 80540-5059 |
| Transaction Type | Mortgage |
| Record Updated | May 09, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0003958347 |
|---|---|
| Date | Apr 25, 2022 |
| Instrument | 3958347 |
| Name | FIRSTBANK |
|---|---|
| Type | Bank |
| Address | DENVER, CO 80215 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 119 Months |
| Due | Mar 28, 2032 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly (Revolving credit lines are monthly unless stated otherwise). |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jan 08, 2020 |
| Property Address | 342 4TH AVE, LYONS, CO 80540-5059 |
| Document Number | 0003759312 |
| Instrument Date | Dec 26, 2019 |
| Instrument | 3759312 |
| Transaction Type | Transfer |
| Record Updated | Jan 28, 2020 |
| Title Company | FIRST INTEGRITY TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $38.70 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 342 4TH AVE LYONS CO 805405059, LYONS, CO 80540-5059 |
| Document Number | 3759313 |
|---|---|
| Date | Jan 08, 2020 |
| Instrument | 3759313 |
| Name | FIRSTBANK |
|---|---|
| Type | Bank |
| Address | LAKEWOOD, CO 80215 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jan 07, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.37% |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jul 03, 2017 |
| Property Address | 342 4TH AVE, LYONS, CO 80540-5059 |
| Document Number | 0003601346 |
| Instrument Date | Jun 16, 2017 |
| Instrument | 3601346 |
| Transaction Type | Transfer |
| Record Updated | Jul 11, 2017 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE INSURA |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $41.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 342 4TH AVE LYONS CO 80540, LYONS, CO 80540 |
| Document Number | 3601347 |
|---|---|
| Date | Jul 03, 2017 |
| Instrument | 3601347 |
| Name | CITYWIDE HMS LNS |
|---|---|
| Type | Funding / Finance Company |
| Address | SANDY, UT 84070 |
| Type | Conventional Mortgage with Private Mortgage Insurance (PMI) |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jul 02, 2047 |
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 | $42,494 (+8.8%) Land $5,372 Building $37,122 | $624,900 (-) Land $79,000 Building $545,900 | |
| 2025 | $5,314.00 (+2.83%) | $39,057 (-18.18%) Land $4,938 Building $34,119 | $624,900 (-12.29%) Land $79,000 Building $545,900 |
| 2023 | $5,168.00 (+19.13%) | $47,737 (+35.65%) Land $5,152 Building $42,585 | $712,500 (+40.71%) Land $76,900 Building $635,600 |
| 2022 | $4,338.00 | $35,191 Land $4,670 Building $30,521 | $506,350 Land $67,200 Building $439,150 |
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