821 5th Ave, Lyons, CO 80540 Property Records

Boulder County property record for 821 5th Ave, Lyons, CO 80540 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	2 Beds
Bathrooms	1 Baths
Architecture Style	A-Frame
Year Built	Built 1976
Square Footage	1,360 sqft Living Area
Lot Size	8,559 sqft (0.197 acres)
Last Sale	$59,900 (1980)
Tax Bill	$4,786.00 (2025)

Primary APN	`1203-18-1-23-002`
Alternative APNs	`R0050370` `0050370`

Bedrooms	2 Beds
Full Baths	1 Baths
Total Rooms	4 Rooms
Building Area	1,360 sqft Living Area
1st Floor	872 sqft 1st Floor
Upper Floors	488 sqft Upper Floors
Stories	2 Stories
Interior Structure	Wallboard/Drywall Interior Structure

Heating System	Forced Air with Air Conditioning Heating

Account Number	R0050370
Street Address	821 5TH AVE
City	LYONS
State	CO
Zip	80540-5036
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOT 8 RIVERVIEW AMEND A
Legal Range	70
Legal Township	3N
Legal Section	18
Legal Subdivision	RIVERVIEW AMEND A - LY
Legal Block	2
Legal Lot Number	8
Jurisdiction	BOULDER CO
Minor Civil Division	LONGMONT
Census Blockgroup	2
Census Block	2026
Census Tract	13601

Source: Boulder County records · APN 1203-18-1-23-002

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 Individuals Owners
Mailing Address	PO BOX 454, LYONS, CO 80540-0454
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deed Names	2 Verified Names on Deed
Known Transactions	Last Sale Amount on Jul 30, 1980 Deed Sale Price on Jul 30, 1980
Deed Doc Number	1980405450
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 and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$38,271 (+8.8%) Land $4,876 Building $33,395	$562,800 (-) Land $71,700 Building $491,100
2025	$4,786.00 (+14.8%)	$35,175 (-10.32%) Land $4,481 Building $30,694	$562,800 (-3.86%) Land $71,700 Building $491,100
2023	$4,169.00 (-3.85%)	$39,222 (+11.51%) Land $4,161 Building $35,061	$585,400 (+15.67%) Land $62,100 Building $523,300
2022	$4,336.00	$35,174 Land $3,809 Building $31,365	$506,100 Land $54,800 Building $451,300