3443 Riverside Dr, Lyons, CO 80540 Property Records

Boulder County property record for 3443 Riverside Dr, Lyons, CO 80540 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	3 Beds
Bathrooms	3.5 Baths
Year Built	Built 1976
Square Footage	1,571 sqft Living Area
Lot Size	2.48 acres
Garage	Detached, 576 sqft
Last Sale	$1,295,000 (2024)
Tax Bill	$3,412.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1321-08-0-04-003`
Alternative APNs	`R0053665` `0053665`

Interior

Bedrooms	3 Beds
Full Baths	3.5 Baths
Partial Baths	2 Partial Baths
Total Rooms	7 Rooms
Building Area	1,571 sqft Living Area
1st Floor	1,571 sqft 1st Floor
Stories	1 Stories
Interior Structure	Paneling Interior Structure

Exterior

Year Built	Built 1956
Effective Year Built	Effective 1976
Architectural Style	Ranch Style
Exterior Material	Wood Shingle Exterior
Construction Type	Frame Construction
Lot Area	108,346 sqft
Parking Spaces	2 Parking Spaces
Garage Type	Detached Garage
Garage Area	576 sqft Garage
Total Buildings	3 Total Buildings

Utilities and HVAC

Heating System	Forced Air with Air Conditioning Heating

Location & Zoning

Account Number	R0053665
Street Address	3443 RIVERSIDE DR
City	LYONS
State	CO
Zip	80540-8982
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOTS 43-46 INC & PT BET C/L ST VRAIN CK & CO HIWAY OF LOT 42 ALPINE
Legal Range	72
Legal Township	2N
Legal Section	08
Legal Subdivision	ALPINE - MT
Legal Block	1
Legal Lot Number	43
Jurisdiction	BOULDER CO
Minor Civil Division	UPPER ST. VRAIN
Census Blockgroup	1
Census Block	1047
Census Tract	13602

Owner

Source: Boulder County records · APN 1321-08-0-04-003

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	2025 BRAEBURN CT, LONGMONT, CO 80503-4176
Owner Type	Owner is an Individual, Couple or Unincorporated Entity
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Known Transactions	Last Sale Amount on Oct 02, 2024 Deed Sale Price on Oct 02, 2024 Prior Sale Amount on Aug 23, 1993
Deed Doc Number	20244062328
Record Refreshed	Sep 20, 2026

October 2024: Personal Representative Deed, Transfer

Document Type	Personal Representative Deed
Jurisdiction	BOULDER CO
Recording Date	Oct 02, 2024
Property Address	3443 RIVERSIDE DR, LYONS, CO 80540-8982
Document Number	0004062328
Instrument Date	Sep 05, 2024
Instrument	4062328
Transaction Type	Transfer
Record Updated	Feb 09, 2026

Transaction

Amount	Amount Recorded
Tax	$129.50
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	2025 BRAEBURN CT, LONGMONT, CO 80503-4176

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 is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$37,823 (+8.8%) Land $7,800 Building $30,023	$556,201 (-) Land $114,700 Building $441,501
2025	$3,412.00 (+8.01%)	$34,763 (-12.67%) Land $7,169 Building $27,594	$556,201 (-6.38%) Land $114,700 Building $441,501
2023	$3,159.00 (+8.93%)	$39,805 (+26.32%) Land $6,640 Building $33,165	$594,100 (+31.03%) Land $99,100 Building $495,000
2022	$2,900.00	$31,511 Land $6,762 Building $24,749	$453,400 Land $97,300 Building $356,100