420 Prospect St, Lyons, CO 80540 Property Records

Boulder County property record for 420 Prospect St, Lyons, CO 80540 · Last verified June 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms3 Beds
Bathrooms1.75 Baths
Year BuiltBuilt 2014
Square Footage2,108 sqft Living Area
Lot Size6,920 sqft (0.159 acres)
Garage336 sqft
Last Sale$69,000 (2018)
Tax Bill$8,409.00 (2025)

Property Details

APN / Parcel Number

Primary APN1203-18-4-25-012
Alternative APNs
  • R0050394
  • 0050394

Interior

Bedrooms3 Beds
Full Baths1.75 Baths
Partial Baths1 Partial Baths
Total Rooms7 Rooms
Building Area2,108 sqft Living Area
1st Floor1,372 sqft 1st Floor
Upper Floors736 sqft Upper Floors
Stories2 Stories
Interior StructureWallboard/Drywall Interior Structure

Exterior

Year BuiltBuilt 1905
Effective Year BuiltEffective 2014
Architectural StyleA-Frame Style
Exterior MaterialWood Shingle Exterior
Construction TypeFrame Construction
Roof MaterialAsphalt Roof
Lot Area6,920 sqft (0.159 acres)
Parking Spaces1 Parking Spaces
Garage Area336 sqft Garage

Exterior Amenities

Deck Area35 sqft Deck
Patio Area390 sqft Patio
PorchPorch
Porch Area25 sqft Porch

Utilities and HVAC

Cooling SystemEvaporative Cooling
Heating SystemForced Air with Air Conditioning Heating

Location & Zoning

Account NumberR0050394
Street Address420 PROSPECT ST
CityLYONS
StateCO
Zip80540
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionLOT 13 LESS NLY 10 FT BLK 34 LYONS
Legal Range70
Legal Township3N
Legal Section18
Legal SubdivisionLYONS - LY
Legal Block34
Legal Lot Number13
JurisdictionBOULDER CO
Minor Civil DivisionLONGMONT
Census Blockgroup3
Census Block3025
Census Tract13601

Owner

Source: Boulder County records · APN 1203-18-4-25-012

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 Record2 Individual Names on File
Mailing AddressPO BOX 1309, LYONS, CO 80540-1309
Owner TypeOwner is an Individual, Couple or Unincorporated Entity
VestingJoint Tenants

Deeds, Mortgages & Sale History

DateDocument
Aug 01, 2022Deed of Trust, Mortgage · Line of Credit
ELEVATIONS CU
Aug 26, 2021Intrafamily Transfer, Transfer · Conventional Mortgage
ZENITH HOME LOANS
Oct 28, 2019Deed of Trust, Mortgage
ZENITH HM LNS
Jun 04, 2018Warranty Deed, Transfer
ELEVATIONS CU

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJun 04, 2018 · Amount on Record
Deed SaleJun 04, 2018 · Amount on Record
Prior SaleAug 13, 2010 · Amount on Record
Deed Doc Number20183658511
Last Transfer DateAug 20, 2021
Transfer Doc0003909768
Record RefreshedSep 20, 2026

August 2022: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address420 PROSPECT ST, LYONS, CO 80540
Transaction TypeMortgage
Record UpdatedJul 11, 2023

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0003974561
DateAug 01, 2022
Instrument3974561
Lender
NameELEVATIONS CU
TypeCredit Union
AddressBOULDER, CO 80301
Agreement
TypeLine of Credit
AmountAmount Recorded
Term240 Months
DueJul 31, 2042
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly (Revolving credit lines are monthly unless stated otherwise).

August 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionBOULDER CO
Recording DateAug 26, 2021
Property Address420 PROSPECT ST, LYONS, CO 80540
Document Number0003909768
Instrument DateAug 20, 2021
Instrument3909768
Transaction TypeTransfer
Record UpdatedJul 26, 2022
Title CompanyE-CHICAGO TITLE, CHICAGO TITLE

Transaction

Tax$0.00
Amount AccuracyZero or No Consideration Stated
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address420 PROSPECT ST, LYONS, CO 80540

Mortgage

Document Number0003909769
DateAug 26, 2021
Instrument3909769
Lender
NameZENITH HOME LOANS
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueSep 01, 2051

October 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address420 PROSPECT ST, LYONS, CO 80540
Document Number0003753695
Instrument DateOct 28, 2019
Transaction TypeMortgage
Record UpdatedDec 20, 2019
Title CompanyCHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transferred To (Grantee/Buyer)

NameVerified Name
AddressPO BOX 1309 LYONS CO 805401309, LYONS, CO 80540-1309

Mortgage

Document Number0003753695
DateDec 10, 2019
Instrument3753695
Lender
NameZENITH HM LNS
AddressSCOTTSDALE, AZ 85258
Agreement
AmountAmount Recorded
Term360 Months
DueDec 09, 2049

June 2018: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateJun 04, 2018
Property Address420 PROSPECT ST, LYONS, CO 80540
Document Number0003658511
Instrument DateJun 01, 2018
Instrument3658511
Transaction TypeTransfer
Record UpdatedJun 19, 2018
Title CompanyFIDELITY NATIONAL TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$69.00
Amount AccuracyConfirmed
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address420 PROSPECT ST LYONS CO 80540, LYONS, CO 80540

Mortgage

Document Number3658512
DateJun 04, 2018
Instrument3658512
Lender
NameELEVATIONS CU
AddressBROOMFIELD, CO 80021
Agreement
AmountAmount Recorded
Term360 Months
DueJun 03, 2048
Interest
Rate TypeAdjustable Rate
Rate4.5%

Tax Assessment & Valuation

Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

YearTax BillAssessed ValueAssessed Market Value
2026$67,245 (+8.8%) Land $4,359 Building $62,886$988,900 (-) Land $64,100 Building $924,800
2025$8,409.00 (+13.59%)$61,806 (-7.46%) Land $4,006 Building $57,800$988,900 (-0.8%) Land $64,100 Building $924,800
2023$7,403.00 (+23.9%)$66,792 (+37.82%) Land $3,725 Building $63,067$996,900 (+42.97%) Land $55,600 Building $941,300
2022$5,975.00$48,463 Land $3,406 Building $45,057$697,300 Land $49,000 Building $648,300

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020

Flood

FEMA Flood ZoneZone AE
Flood HazardHigh
100-Year FloodplainYes
1% annual chance
Special Flood Hazard AreaYes
Flood Insurance RequirementRequired (federally backed mortgages)
FloodwayNo
Base Flood ElevationVaries along the reach; see FIRM

Wildfire

Wildfire Risk to HomesHigh
79th percentile nationally · 81st in Colorado
Wildfire LikelihoodAbout 1 in 224 per year
ExposureIndirect
within ember reach

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

Nearby Properties on Prospect St

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