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3638 Riverside Dr, Lyons, CO 80540 Property Records

Boulder County property record for 3638 Riverside Dr, Lyons, CO 80540 · Last verified June 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms2 Beds
Bathrooms1.75 Baths
Year BuiltBuilt 1990
Square Footage667 sqft Living Area
Lot Size1.21 acres
OccupancyOwner Occupied
Last Sale$418,000 (2020)
Tax Bill$2,601.00 (2025)

Property Details

APN / Parcel Number

Primary APN1321-08-0-03-007
Alternative APNs
  • R0053599
  • 0053599

Interior

Bedrooms2 Beds
Full Baths1.75 Baths
Partial Baths1 Partial Baths
Total Rooms4 Rooms
Building Area667 sqft Living Area
1st Floor667 sqft 1st Floor
Stories1 Stories
Interior StructurePlywood Interior Structure

Exterior

Year BuiltBuilt 1954
Effective Year BuiltEffective 1990
Architectural StyleRanch Style
Exterior MaterialWood Shingle Exterior
Construction TypeFrame Construction
Roof MaterialAsphalt Roof
Lot Area52,799 sqft
PorchPorch
Porch Area232 sqft Porch

Utilities and HVAC

Heating SystemForced Air with Air Conditioning Heating

Location & Zoning

Account NumberR0053599
Street Address3638 RIVERSIDE DR
CityLYONS
StateCO
Zip80540-8978
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionLOTS 26-28 INCL ALPINE & TR 4052 .50 ACS M/L 8-2N-72
Legal Range72
Legal Township2N
Legal Section08
Legal SubdivisionALPINE - MT
Legal Tract4052
Legal Block1
Legal Lot Number26
JurisdictionBOULDER CO
Minor Civil DivisionUPPER ST. VRAIN
Census Blockgroup1
Census Block1064
Census Tract13602

Owner

Source: Boulder County records · APN 1321-08-0-03-007

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 Address3638 RIVERSIDE DR, LYONS, CO 80540-8978
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity
VestingJoint Tenants

Deeds, Mortgages & Sale History

DateDocument
Aug 02, 2021Correction Deed
HERITAGE TITLE COMPANY
Nov 12, 2020Quit Claim Deed, Transfer
HERITAGE TITLE COMPANY, HERITAGE TITLE CO.
Nov 12, 2020Warranty Deed, Transfer · Conventional Mortgage
GUILD MORTGAGE CO
Sep 27, 2018Quit Claim Deed, Transfer
Quitclaim Document
Sep 11, 2018Warranty Deed, Transfer · Conventional Mortgage
COLORADO ST BK&TR

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Known Transactions
  • Last Sale Amount on Nov 12, 2020
  • Deed Sale Price on Nov 12, 2020
  • Prior Sale Amount on Sep 11, 2018
Deed Doc Number20203832672
Prior Transfer DateDec 26, 2002
Prior Transfer Doc0002379021
Record RefreshedSep 20, 2026

August 2021: Correction Deed

Document TypeCorrection Deed
JurisdictionBOULDER CO
Recording DateAug 02, 2021
Property Address3638 RIVERSIDE DR, LYONS, CO 80540-8978
Document Number0003903652
Instrument DateJan 07, 2021
Instrument3903652
Record UpdatedAug 11, 2021
Title CompanyHERITAGE TITLE COMPANY

Transaction

Tax$0.00
Amount AccuracyZero or No Consideration Stated

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address3638 RIVERSIDE DR, LYONS, CO 80540-8978

November 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionBOULDER CO
Recording DateNov 12, 2020
Property Address3638 RIVERSIDE DR, LYONS, CO 80540-8978
Document Number0003832671
Instrument DateNov 06, 2020
Instrument3832671
Transaction TypeTransfer
Record UpdatedDec 09, 2020
Title CompanyHERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Transaction

Tax$0.00
Additional
  • Quitclaim Document
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address1011 N DOWNING ST DENVER CO 802182913, DENVER, CO 80218-2913

November 2020: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateNov 12, 2020
Property Address3638 RIVERSIDE DR, LYONS, CO 80540-8978
Document Number0003832672
Instrument DateNov 06, 2020
Instrument3832672
Transaction TypeTransfer
Record UpdatedMar 31, 2022
Title CompanyHERITAGE TITLE CO

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$41.80
Amount AccuracyFull Amount Stated
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address3638 RIVERSIDE DR, LYONS, CO 80540-8978

Mortgage

Document Number0003832673
DateNov 12, 2020
Instrument3832673
Lender
NameGUILD MORTGAGE CO
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term301 Months
DueDec 01, 2045

September 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionBOULDER CO
Recording DateSep 27, 2018
Property Address3638 RIVERSIDE DR, LYONS, CO 80540-8978
Document Number0003678343
Instrument DateSep 27, 2018
Instrument3678343
Transaction TypeTransfer
Record UpdatedOct 10, 2018

Transaction

Tax$0.00
Additional
  • Quitclaim Document
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address1011 N DOWNING ST DENVER CO 802182913, DENVER, CO 80218-2913

September 2018: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateSep 11, 2018
Property Address3638 RIVERSIDE DR, LYONS, CO 80540-8978
Document Number0003675778
Instrument DateSep 10, 2018
Instrument3675778
Transaction TypeTransfer
Record UpdatedSep 21, 2018
Title CompanyHERITAGE TITLE COMPANY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$25.72
Amount AccuracyConfirmed
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenant/Joint Tenant w/ Right Of Survivorship
Address1011 N DOWNING ST DENVER CO 802182913, DENVER, CO 80218-2913

Mortgage

Document Number3675779
DateSep 11, 2018
Instrument3675779
Lender
NameCOLORADO ST BK&TR
TypeBank
AddressTULSA, TX 74153
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueSep 10, 2048

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateColorado
CountyBoulder County
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, not market price estimates; both are a fraction of this property's market value.

YearTax BillAssessed ValueAssessed Market Value
2026$28,839 (+8.8%) Land $4,930 Building $23,909$424,100 (-) Land $72,500 Building $351,600
2025$2,601.00 (+19.64%)$26,506 (-7.13%) Land $4,531 Building $21,975$424,100 (-0.45%) Land $72,500 Building $351,600
2023$2,174.00 (+14%)$28,542 (+37.76%) Land $4,301 Building $24,241$426,000 (+42.91%) Land $64,200 Building $361,800
2022$1,907.00$20,718 Land $3,809 Building $16,909$298,100 Land $54,800 Building $243,300

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