406 Prospect St, Lyons, CO 80540 Property Records

Boulder County property record for 406 Prospect St, Lyons, CO 80540 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	4 Beds
Bathrooms	2 Baths
Year Built	Built 1990
Square Footage	1,144 sqft Living Area
Lot Size	9,171 sqft (0.211 acres)
Garage	Detached, 720 sqft
Last Sale	$304,000 (2007)
Tax Bill	$6,549.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1203-18-4-25-011`
Alternative APNs	`R0050282` `0050282`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Building Area	1,144 sqft Living Area
1st Floor	1,144 sqft 1st Floor
Stories	1 Stories
Interior Structure	Plaster Interior Structure

Exterior

Year Built	Built 1907
Effective Year Built	Effective 1990
Architectural Style	Ranch Style
Exterior Material	Wood Shingle Exterior
Construction Type	Frame Construction
Lot Area	9,171 sqft (0.211 acres)
Parking Spaces	3 Parking Spaces
Garage Type	Detached Garage
Garage Area	720 sqft Garage
Total Buildings	2 Total Buildings
Shed	1 Shed
Deck Area	336 sqft Deck

Utilities and HVAC

Heating System	Forced Air with Air Conditioning Heating

Location & Zoning

Account Number	R0050282
Street Address	406 PROSPECT ST
City	LYONS
State	CO
Zip	80540
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOTS 15-16 LESS N 50 FT BLK 34 LYONS
Legal Range	70
Legal Township	3N
Legal Section	18
Legal Subdivision	LYONS - LY
Legal Block	34
Legal Lot Number	15
Jurisdiction	BOULDER CO
Minor Civil Division	LONGMONT
Census Blockgroup	3
Census Block	3025
Census Tract	13601

Owner

Source: Boulder County records · APN 1203-18-4-25-011

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	PO BOX 1324, LYONS, CO 80540-1324
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Aug 10, 2007 · Amount on Record
Deed Sale	Aug 10, 2007 · Amount on Record
Prior Sale	Feb 17, 2004 · Amount on Record
Deed Doc Number	20072875584
Record Refreshed	Sep 20, 2026

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	406 PROSPECT ST, LYONS, CO 80540
Transaction Type	Mortgage
Record Updated	Feb 05, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003817241
Date	Sep 22, 2020
Instrument	3817241

Lender

Name	COLONIAL NATIONAL MORTGAGE
Type	Mortgage Company
Address	FORT WORTH, TX 76102

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Oct 01, 2035

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		$52,367 (+8.8%) Land $4,971 Building $47,396	$770,100 (-) Land $73,100 Building $697,000
2025	$6,549.00 (+11.42%)	$48,131 (-10.53%) Land $4,569 Building $43,562	$770,100 (-4.09%) Land $73,100 Building $697,000
2023	$5,878.00 (+18.89%)	$53,794 (+34.13%) Land $4,248 Building $49,546	$802,900 (+39.14%) Land $63,400 Building $739,500
2022	$4,944.00	$40,105 Land $3,885 Building $36,220	$577,050 Land $55,900 Building $521,150