Boulder County property record for 540 Prospect St, Lyons, CO 80540 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1 Baths |
| Architecture Style | Ranch |
| Year Built | Built 1990 |
| Square Footage | 1,800 sqft Living Area |
| Lot Size | 7,008 sqft (0.161 acres) |
| Last Sale | $440,000 (2020) |
| Tax Bill | $4,082.00 (2025) |
| Primary APN | 1203-18-4-31-006 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,800 sqft Living Area |
| 1st Floor | 1,000 sqft 1st Floor |
| Basement Area | 800 sqft Basement |
| Finished Basement | 800 sqft Finished |
| Stories | 1 Stories |
| Interior Structure | Plaster Interior Structure |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | Ranch Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Lot Area | 7,008 sqft (0.161 acres) |
| Deck Area | 240 sqft Deck |
| Patio Area | 480 sqft Patio |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0050241 |
|---|---|
| Street Address | 540 PROSPECT ST |
| City | LYONS |
| State | CO |
| Zip | 80540 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | E 140 FT LOT 6 BLK 37 LYONS |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | LYONS - LY |
| Legal Block | 37 |
| Legal Lot Number | 6 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | LONGMONT |
| Census Blockgroup | 2 |
| Census Block | 2024 |
| Census Tract | 13601 |
Source: Boulder County records · APN 1203-18-4-31-006
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | PO BOX 861, LYONS, CO 80540-0861 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Mar 09, 2021 | Quit Claim Deed, Transfer · Conventional Mortgage CALIBER HOME LOANS INC |
| Mar 11, 2020 | Warranty Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 11, 2020 · Amount on Record |
| Deed Sale | Mar 11, 2020 · Amount on Record |
| Prior Sale | May 23, 1991 |
| Deed Doc Number | 20203771379 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Mar 09, 2021 |
| Property Address | 540 PROSPECT ST, LYONS, CO 80540 |
| Document Number | 0003865828 |
| Instrument Date | Feb 25, 2021 |
| Instrument | 3865828 |
| Transaction Type | Transfer |
| Record Updated | Mar 31, 2022 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Zero or No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 540 PROSPECT ST, LYONS, CO 80540 |
| Document Number | 0003865829 |
|---|---|
| Date | Mar 09, 2021 |
| Instrument | 3865829 |
| Name | CALIBER HOME LOANS INC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Mar 01, 2051 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Mar 11, 2020 |
| Property Address | 540 PROSPECT ST, LYONS, CO 80540 |
| Document Number | 0003771379 |
| Instrument Date | Mar 09, 2020 |
| Instrument | 3771379 |
| Transaction Type | Transfer |
| Record Updated | Mar 31, 2022 |
| Title Company | CANYON TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $44.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 540 PROSPECT ST, LYONS, CO 80540 |
| Document Number | 0003771380 |
|---|---|
| Date | Mar 11, 2020 |
| Instrument | 3771380 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Apr 01, 2050 |
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 | $32,640 (+8.8%) Land $4,046 Building $28,594 | $480,000 (-) Land $59,500 Building $420,500 | |
| 2025 | $4,082.00 (+13.74%) | $30,000 (-12.5%) Land $3,719 Building $26,281 | $480,000 (-6.2%) Land $59,500 Building $420,500 |
| 2023 | $3,589.00 (-10.68%) | $34,284 (+5.18%) Land $3,544 Building $30,740 | $511,700 (+9.1%) Land $52,900 Building $458,800 |
| 2022 | $4,018.00 | $32,596 Land $3,267 Building $29,329 | $469,000 Land $47,000 Building $422,000 |
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