539 Prospect St, Lyons, CO 80540 Property Records

Boulder County property record for 539 Prospect St, Lyons, CO 80540 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	3 Beds
Bathrooms	1.5 Baths
Year Built	Built 1973
Square Footage	1,800 sqft Living Area
Lot Size	3,713 sqft (0.085 acres)
Garage	Carport, 154 sqft
Last Sale	$136,000 (1996)
Tax Bill	$4,745.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1203-18-3-02-001`
Alternative APNs	`R0050146` `0050146`

Interior

Bedrooms	3 Beds
Full Baths	1.5 Baths
Partial Baths	1 Partial Baths
Total Rooms	5 Rooms
Building Area	1,800 sqft Living Area
1st Floor	1,052 sqft 1st Floor
Basement Area	748 sqft Basement
Finished Basement	748 sqft Finished
Stories	1 Stories
Interior Structure	Paneling Interior Structure

Exterior

Year Built	Built 1959
Effective Year Built	Effective 1973
Architectural Style	Ranch Style
Exterior Material	Wood Shingle Exterior
Construction Type	Frame Construction
Lot Area	3,713 sqft (0.085 acres)
Garage Type	Carport Garage
Garage Area	154 sqft Garage
Carport	Carport
Carport Area	154 sqft Carport

Exterior Amenities

Deck Area	202 sqft Deck
Patio Area	480 sqft Patio
Porch	Porch
Porch Area	140 sqft Porch

Utilities and HVAC

Heating System	Forced Air with Air Conditioning Heating

Location & Zoning

Account Number	R0050146
Street Address	539 PROSPECT ST
City	LYONS
State	CO
Zip	80540-5067
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	ELY 72.64 FT OF LOT 1 BLK 2 CRONA HEIGHTS PER CO 88 DR 1334 & PT OF VACATED PROSPECT ST PER ORDINANCE 314 DEED 176981 5/18/76 SEE SPLIT 111706
Legal Range	70
Legal Township	3N
Legal Section	18
Legal Subdivision	LYONS CRONA HEIGHTS - LY
Legal Block	2
Legal Lot Number	1
Jurisdiction	BOULDER CO
Minor Civil Division	LONGMONT
Census Blockgroup	3
Census Block	3028
Census Tract	13601

Owner

Source: Boulder County records · APN 1203-18-3-02-001

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 1685, LYONS, CO 80540-1685
Owner Type	Owner is an Individual, Couple or Unincorporated Entity
Vesting	Joint Tenant/Joint Tenant w/ Right Of Survivorship

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Known Transactions	Last Sale Amount on Sep 30, 1996 Deed Sale Price on Sep 30, 1996 Sep 12, 1996
Deed Doc Number	19961646288
Last Transfer Date	May 22, 2019
Transfer Doc	0003713774
Record Refreshed	Sep 20, 2026

January 2019: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jan 18, 2019
Property Address	539 PROSPECT ST, LYONS, CO 80540-5067
Document Number	0003694682
Instrument Date	Jan 16, 2019
Instrument	3694682
Transaction Type	Transfer
Record Updated	Feb 01, 2019
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$38.90
Amount Accuracy	Confirmed
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenant/Joint Tenant w/ Right Of Survivorship
Address	539 1/2 PROSPECT ST LYONS CO 80540, LYONS, CO 80540

Mortgage

Document Number	3694684
Date	Jan 18, 2019
Instrument	3694684

Lender

Name	LAKEVIEW LN SERVICING
Type	Funding / Finance Company
Address	CORAL GABLES, FL 33146

Agreement

Type	Conventional Mortgage with Private Mortgage Insurance (PMI)
Amount	Amount Recorded
Term	360 Months
Due	Jan 17, 2049

Tax Assessment & Valuation

Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026

Property Jurisdictions

Type	Name
State	Colorado
County	Boulder County
Municipality	Lyons Town
Unified School District	St. Vrain Valley School District RE 1J (PK - 12)

Tax Bill & Assessment History

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		$37,944 (+8.8%) Land $3,216 Building $34,728	$558,000 (-) Land $47,300 Building $510,700
2025	$4,745.00 (+15.65%)	$34,875 (-9.8%) Land $2,956 Building $31,919	$558,000 (-3.31%) Land $47,300 Building $510,700
2023	$4,103.00 (+12.84%)	$38,666 (+31.09%) Land $2,747 Building $35,919	$577,100 (+35.98%) Land $41,000 Building $536,100
2022	$3,636.00	$29,496 Land $2,516 Building $26,980	$424,400 Land $36,200 Building $388,200