404 Seward St, Lyons, CO 80540 Property Records

Boulder County property record for 404 Seward St, Lyons, CO 80540 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	3 Beds
Bathrooms	1.75 Baths
Architecture Style	A-Frame
Year Built	Built 1960
Square Footage	1,426 sqft Living Area
Lot Size	9,475 sqft (0.218 acres)
Last Sale	$420,000 (2016)
Tax Bill	$4,608.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1203-18-1-07-011`
Alternative APNs	`R0050103` `0050103`

Interior

Bedrooms	3 Beds
Full Baths	1.75 Baths
Partial Baths	1 Partial Baths
Total Rooms	4 Rooms
Building Area	1,426 sqft Living Area
1st Floor	970 sqft 1st Floor
Upper Floors	456 sqft Upper Floors
Stories	1 Stories
Interior Structure	Plaster Interior Structure

Exterior

Year Built	Built 1924
Effective Year Built	Effective 1960
Architectural Style	A-Frame Style
Exterior Material	Wood Shingle Exterior
Construction Type	Frame Construction
Lot Area	9,475 sqft (0.218 acres)

Exterior Amenities

Total Buildings	2 Total Buildings
Shed	1 Shed
Porch	Porch
Porch Area	96 sqft Porch

Utilities and HVAC

Heating System	Forced Air with Air Conditioning Heating

Location & Zoning

Account Number	R0050103
Street Address	404 SEWARD ST
City	LYONS
State	CO
Zip	80540
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOT 6 LESS W 8 FT BLK 4 NORTONVILLE
Legal Range	70
Legal Township	3N
Legal Section	18
Legal Subdivision	NORTONVILLE - LY
Legal Block	4
Legal Lot Number	6
Jurisdiction	BOULDER CO
Minor Civil Division	LONGMONT
Census Blockgroup	3
Census Block	3002
Census Tract	13601

Owner

Source: Boulder County records · APN 1203-18-1-07-011

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	2 Individual Names on File
Mailing Address	PO BOX 1367, LYONS, CO 80540-1367
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jun 20, 2016 · Amount on Record
Deed Sale	Jun 20, 2016 · Amount on Record
Prior Sale	May 21, 2008 · Amount on Record
Deed Doc Number	20163524915
Record Refreshed	Sep 20, 2026

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		$36,849 (+8.8%) Land $5,073 Building $31,776	$541,900 (-) Land $74,600 Building $467,300
2025	$4,608.00 (+6.99%)	$33,869 (-16.17%) Land $4,663 Building $29,206	$541,900 (-10.13%) Land $74,600 Building $467,300
2023	$4,307.00 (+24.52%)	$40,401 (+44%) Land $4,335 Building $36,066	$603,000 (+49.37%) Land $64,700 Building $538,300
2022	$3,459.00	$28,057 Land $3,968 Building $24,089	$403,700 Land $57,100 Building $346,600

Flood & Wildfire

404 Seward St is in FEMA Zone X, outside the Special Flood Hazard Area, with direct wildfire exposure (High risk).

Flood

Source: FEMA National Flood Hazard Layer · Boulder County (08013C), updated October 14, 2026

FEMA Flood Zone	Zone X minimal flood hazard · outside the 0.2% annual chance floodplain
Special Flood Hazard Area	No

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire Risk to Homes	High 76th percentile of exposed land nationally · 76th in Colorado
Wildfire Likelihood	High — about 1 in 264 per year
Exposure	Direct burnable vegetation at the parcel

Values are read at the parcel center point; lenders make the official flood determination.