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316 Seward St, Lyons, CO 80540 Property Records

Boulder County property record for 316 Seward St, Lyons, CO 80540

Property Summary

Property TypeSingle Family Home
Details2 bd · 1 ba · 854 sqft · built 1903
Lot Size0.231 acres (10,081 sqft)
Owner2 Individual Names on Record
Last Sale$430,000 (Oct 2021)
Tax Bill$4,018 (2025)
Deeds & MortgagesOct 2021 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN1203-18-1-03-009

Property Details

APN / Parcel Number

Primary APN1203-18-1-03-009
Alternative APNs
  • R0050332
  • 0050332

Interior

Bedrooms2 Beds
Full Baths1 Bath
Total Rooms4 Rooms
Stories1 Story
Building Area854 sqft Living Area
Gross Area1,034 sqft
1st Floor Area854 sqft
Basement Area524 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1903
Effective Year BuiltEffective 1980
Architectural StyleRanch
Exterior MaterialWood Shingle
Construction TypeFrame
Roof MaterialAsphalt
Lot Area10,081 sqft (0.231 acres)
PorchEnclosed Porch
Porch Area180 sqft
Total Buildings2 Buildings

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0050332
Street Address316 SEWARD ST
CityLYONS
StateCO
Zip80540
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 5 BLK 5 NORTONVILLE
Legal Range70
Legal Township3N
Legal Section18
Legal SubdivisionNORTONVILLE - LY
Legal Block5
Legal Lot Number5
JurisdictionBOULDER CO
Township / Civil DivisionLONGMONT
Census Block Group2
Census Block2032
Census Tract13601

Owner

Source: Boulder County records, as of June 15, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on Record
Mailing Address316 SEWARD ST, LYONS, CO 80540
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleOct 25, 2021 · Amount on Record
Deed SaleOct 25, 2021 · Amount on Record
Prior SaleJun 16, 1988 · Amount on Record
Deed Document Number20213922969
Record UpdatedSep 20, 2026

October 2021: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateOct 25, 2021
Property Address316 SEWARD ST, LYONS, CO 80540
Document Number0003922969
Instrument DateOct 14, 2021
Instrument3922969
Transaction TypeTransfer
Record UpdatedNov 9, 2021
Title CompanyFIRST AMERICAN

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$43.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address316 SEWARD ST, LYONS, CO 80540

Mortgage

Document Number0003922970
DateOct 25, 2021
Instrument3922970
Lender
NameDSW MORTGAGE INC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueNov 1, 2051

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of June 15, 2026

Property Jurisdictions

TypeName
StateColorado
CountyBoulder County
MunicipalityLyons Town
Unified School DistrictSt. Vrain Valley School District RE 1J (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$32,130 (+8.8%) Land $5,372 Building $26,758$472,500 (-) Land $79,000 Building $393,500
2025$4,018.00 (+4.55%)$29,532 (-18.97%) Land $4,938 Building $24,594$472,500 (-13.14%) Land $79,000 Building $393,500
2023$3,843.00 (+39.49%)$36,448 (+63.08%) Land $4,583 Building $31,865$544,000 (+69.16%) Land $68,400 Building $475,600
2022$2,755.00$22,350 Land $4,198 Building $18,152$321,580 Land $60,400 Building $261,180

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.

Flood

Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 22 policies
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies22 in force
Nearby Flood Claims56 (1980–2015)
Claims Outside the SFHA23 of 56
Most Recent ClaimJun 2015 · Severe Storms, Tornadoes, Flooding, Landslides, And Mudslides
Claims by Event
  • Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 49 claims

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

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

Wildfire RiskHigh
above 77% of the US · above 78% of Colorado
Wildfire Likelihood0.4% annual chance
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemTOWN OF LYONS
serves 2,990 people · EPA ID CO0107496
Water SourcePurchased surface water from CITY OF LONGMONT
Last State InspectionNov 2022
LeadUnder 1 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 63 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Lyons Communications
Cable · Fixed Wireless · Fiber in parts of the area		1,000 / 100
Verizon
Fixed Wireless		300 / 20
T-Mobile
Fixed Wireless		100 / 20

May also be available: Rise Broadband.

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