539 Riverside Dr, Lyons, CO 80540 Property Records

Boulder County property record for 539 Riverside Dr, Lyons, CO 80540 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	1 Beds
Bathrooms	1.75 Baths
Year Built	Built 1990
Square Footage	990 sqft Living Area
Lot Size	7,812 sqft (0.179 acres)
Garage	144 sqft
Last Sale	$390,000 (2020)
Tax Bill	$2,669.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1199-34-3-00-015`
Alternative APNs	`R0053793` `0053793`

Interior

Bedrooms	1 Beds
Full Baths	1.75 Baths
Partial Baths	1 Partial Baths
Total Rooms	6 Rooms
Building Area	990 sqft Living Area
1st Floor	630 sqft 1st Floor
Basement Area	360 sqft Basement
Finished Basement	360 sqft Finished
Stories	1 Stories
Interior Structure	Wallboard/Drywall Interior Structure

Exterior

Year Built	Built 1929
Effective Year Built	Effective 1990
Architectural Style	Ranch Style
Exterior Material	Wood Shingle Exterior
Construction Type	Frame Construction
Roof Material	Metal Roof
Lot Area	7,812 sqft (0.179 acres)
Garage Area	144 sqft Garage
Deck Area	96 sqft Deck
Porch	Porch
Porch Area	64 sqft Porch

Utilities and HVAC

Heating System	Forced Air with Air Conditioning Heating

Location & Zoning

Account Number	R0053793
Street Address	539 RIVERSIDE DR
City	LYONS
State	CO
Zip	80540-8974
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	TR 3974 & 3975 IN SE 1/4 SW 1/4 34-3N-72 PER DEED 2007909 12/20/99 BCR
Legal Range	72
Legal Township	3N
Legal Section	34
Legal Subdivision	TR, NBR 961 ST VRAIN AREA
Legal Tract	3974,3975
Legal Block	1
Jurisdiction	BOULDER CO
Minor Civil Division	UPPER ST. VRAIN
Census Blockgroup	1
Census Block	1047
Census Tract	13602

Owner

Source: Boulder County records · APN 1199-34-3-00-015

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 89, LYONS, CO 80540-0089
Owner Type	Owner is an Individual, Couple or Unincorporated Entity
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Known Transactions	Last Sale Amount on Aug 27, 2020 Deed Sale Price on Aug 27, 2020 Prior Sale Amount on Dec 20, 1999
Deed Doc Number	20203810554
Record Refreshed	Sep 20, 2026

August 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Aug 27, 2020
Property Address	539 RIVERSIDE DR, LYONS, CO 80540-8974
Document Number	0003810554
Instrument Date	Aug 25, 2020
Instrument	3810554
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	HERITAGE TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$39.00
Amount Accuracy	Full Amount Stated
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	PO BOX 89, LYONS, CO 80540-0089

Mortgage

Document Number	0003810555
Date	Aug 27, 2020
Instrument	3810555

Lender

Name	CROSSCOUNTRY MORTGAGE LLC

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 01, 2050

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
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		$29,593 (+8.8%) Land $3,053 Building $26,540	$435,200 (-) Land $44,900 Building $390,300
2025	$2,669.00 (+23.91%)	$27,200 (-3.94%) Land $2,806 Building $24,394	$435,200 (+2.98%) Land $44,900 Building $390,300
2023	$2,154.00 (+18.94%)	$28,315 (+43.91%) Land $2,312 Building $26,003	$422,600 (+49.28%) Land $34,500 Building $388,100
2022	$1,811.00	$19,676 Land $2,391 Building $17,285	$283,100 Land $34,400 Building $248,700