621 E 4th Ave, Longmont, CO 80504 Property Records

Boulder County property record for 621 E 4th Ave, Longmont, CO 80504 · Last verified June 2026

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,375 sqft · built 1972
Lot Size0.175 acres (7,612 sqft)
Owner2 Individual Names on File
Last Sale$260,000 (Aug 2017)
Tax Bill$2,673 (2025)
Deeds & MortgagesSep 2021 Mortgage
Mar 2020 Mortgage
+ 2 more
Flood ZoneZone X (minimal risk)
APN1315-02-4-13-006

Property Details

APN / Parcel Number

Primary APN1315-02-4-13-006
Alternative APNs
  • R0040485
  • 0040485

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms7 Rooms
Stories1 Story
Building Area1,375 sqft Living Area
1st Floor Area1,375 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1972
Effective Year BuiltEffective 1983
Architectural StyleRanch
Exterior MaterialBrick Veneer
Construction TypeMasonry / Concrete Block
Roof MaterialAsphalt
Lot Area7,612 sqft (0.175 acres)
Garage Area300 sqft
Parking Spaces1 Parking Space
Patio Area216 sqft

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0040485
Street Address621 E 4TH AVE
CityLONGMONT
StateCO
Zip80504-6008
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 230 DOLLHOUSE VILLAGE 2
Legal Range69
Legal Township2N
Legal Section02
Legal SubdivisionDOLLHOUSE VILLAGE 2 - LG
Legal Block1
Legal Lot Number230
JurisdictionBOULDER CO
Township / Civil DivisionLONGMONT
Census Block Group1
Census Block1010
Census Tract13402

Owner

Source: Boulder County records · APN 1315-02-4-13-006

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 Address621 E 4TH AVE, LONGMONT, CO 80504-6008
OccupancyOwner Occupied
Owner TypeIndividual
VestingJoint Tenants

Deeds, Mortgages & Sale History

DateDocument
Sep 27, 2021Deed of Trust, Mortgage · Conventional Mortgage
NETWORK CAPITAL FUNDING CORP
Mar 17, 2020Deed of Trust, Mortgage · FHA Mortgage
AMERICAN FINANCING
Jun 22, 2018Deed of Trust, Mortgage · Conventional with PMI
SUPREME LNDG
Aug 23, 2017Warranty Deed, Transfer · Conventional with PMI
SUPREME LNDG

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleAug 23, 2017 · Amount on Record
Deed SaleAug 23, 2017 · Amount on Record
Prior SaleMay 03, 2005 · Amount on Record
Deed Document Number20173610597
Prior Transfer DateOct 24, 2002
Prior Transfer Doc0002356124
Record UpdatedSep 20, 2026

September 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address621 E 4TH AVE, LONGMONT, CO 80504-6008
Transaction TypeMortgage
Record UpdatedOct 18, 2021
Title CompanyUNISOURCE

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0003916714
DateSep 27, 2021
Instrument3916714
Lender
NameNETWORK CAPITAL FUNDING CORP
TypeMortgage Company
AddressIRVINE, CA 92618
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueSep 01, 2051

March 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address621 E 4TH AVE, LONGMONT, CO 80504-6008
Document Number0003773994
Instrument DateMar 17, 2020
Transaction TypeMortgage
Record UpdatedJun 08, 2020
Title CompanyFIRST INTEGRITY TITLE, FITCO-FIRST INTEGRITY TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address621 E 4TH AVE LONGMONT CO 805046008, LONGMONT, CO 80504-6008

Mortgage

Document Number0003773994
DateMar 25, 2020
Instrument3773994
Lender
NameAMERICAN FINANCING
TypeFunding / Finance Company
AddressAURORA, CO 80014
Agreement
TypeFHA Mortgage
AmountAmount Recorded
Term360 Months
DueMar 24, 2050

June 2018: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address621 E 4TH AVE, LONGMONT, CO 80504-6008
Document Number0003662854
Instrument DateJun 22, 2018
Transaction TypeMortgage
Record UpdatedJul 06, 2018

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipHusband and Wife
Address621 E 4TH AVE LONGMONT CO 805046008, LONGMONT, CO 80504-6008

Mortgage

Document Number0003662854
DateJun 27, 2018
Instrument3662854
Lender
NameSUPREME LNDG
AddressDALLAS, TX 75254
Agreement
TypeConventional with PMI
AmountAmount Recorded
Term360 Months
DueJun 26, 2048

August 2017: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateAug 23, 2017
Property Address621 E 4TH AVE, LONGMONT, CO 80504-6008
Document Number0003610597
Instrument DateAug 21, 2017
Instrument3610597
Transaction TypeTransfer
Record UpdatedAug 30, 2017
Title CompanyHERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$26.00
Amount AccuracyConfirmed
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants with Right of Survivorship
Address621 E 4TH AVE LONGMONT CO 805046008, LONGMONT, CO 80504-6008

Mortgage

Document Number3610598
DateAug 23, 2017
Instrument3610598
Lender
NameSUPREME LNDG
AddressDALLAS, TX 75254
Agreement
TypeConventional with PMI
AmountAmount Recorded
Term360 Months
DueAug 22, 2047

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateColorado
CountyBoulder County
MunicipalityLongmont City
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$27,710 (+8.8%) Land $11,152 Building $16,558$407,500 (-) Land $164,000 Building $243,500
2025$2,673.00 (+18.96%)$25,469 (-7.42%) Land $10,250 Building $15,219$407,500 (-0.75%) Land $164,000 Building $243,500
2023$2,247.00 (+9.45%)$27,510 (+32.56%) Land $11,323 Building $16,187$410,600 (+37.51%) Land $169,000 Building $241,600
2022$2,053.00$20,753 Land $7,993 Building $12,760$298,600 Land $115,000 Building $183,600

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 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

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

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 696 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
City of LongmontFiber10,000 / 10,000
XfinityCable1,200 / 35
VerizonFixed Wireless300 / 20
Lumen TechnologiesDSL140 / 20

May also be available at this address: JAB Wireless, TDS Telecom. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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