Boulder County property record for 535 Prospect St, Lyons, CO 80540 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 1 Beds |
| Bathrooms | 1 Baths |
| Architecture Style | Ranch |
| Year Built | Built 1999 |
| Square Footage | 885 sqft Living Area |
| Lot Size | 9,088 sqft (0.209 acres) |
| Tax Bill | $4,221.00 (2025) |
| Primary APN | 1203-18-4-32-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 1 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 3 Rooms |
| Building Area | 885 sqft Living Area |
| 1st Floor | 885 sqft 1st Floor |
| Stories | 1 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Architectural Style | Ranch Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Lot Area | 9,088 sqft (0.209 acres) |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Account Number | R0145886 |
|---|---|
| Street Address | 535 PROSPECT ST |
| City | LYONS |
| State | CO |
| Zip | 80540-5067 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOTS 1A AMENDED PLAT A REPLAT OF LOTS 1 & 2 BLK 36 TOWN OF LYONS PER LOT LINE ADJUSTMENT 1149629 SPLIT FROM ID #50420 |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | LYONS - LY |
| Legal Block | 36 |
| Legal Lot Number | 1A |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | LONGMONT |
| Census Blockgroup | 3 |
| Census Block | 3028 |
| Census Tract | 13601 |
Source: Boulder County records · APN 1203-18-4-32-005
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 | 312 WEST ST, FORT COLLINS, CO 80521-1857 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Dec 19, 1991 |
| Deed Sale | Dec 19, 1991 |
| Prior Sale | Jan 02, 1991 · Amount on Record |
| Deed Doc Number | 19911149629 |
| Record Refreshed | Sep 20, 2026 |
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 | $40,555 (+8.8%) Land $4,814 Building $35,741 | $596,400 (-) Land $70,800 Building $525,600 | |
| 2025 | $4,221.00 (+15.14%) | $37,275 (-10.47%) Land $4,425 Building $32,850 | $596,400 (-4.02%) Land $70,800 Building $525,600 |
| 2023 | $3,666.00 (+35.83%) | $41,634 (+44.35%) Land $4,114 Building $37,520 | $621,400 (+49.73%) Land $61,400 Building $560,000 |
| 2022 | $2,699.00 | $28,843 Land $3,760 Building $25,083 | $415,000 Land $54,100 Building $360,900 |
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