1. Home
  2. Colorado
  3. Boulder County
  4. Boulder
  5. Union Ave

830 Union Ave, Boulder, CO 80304 Property Records

Boulder County property record for 830 Union Ave, Boulder, CO 80304 · Last verified June 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms4 Beds
Bathrooms2.75 Baths
Year BuiltBuilt 2010
Square Footage3,220 sqft Living Area
Lot Size6,302 sqft (0.145 acres)
GarageAttached, 546 sqft
Last Sale$836,098 (2011)
Tax Bill$13,133.00 (2025)

Property Details

APN / Parcel Number

Primary APN1461-13-1-40-002
Alternative APNs
  • R0507013
  • 0507013

Interior

Bedrooms4 Beds
Full Baths2.75 Baths
Partial Baths1 Partial Baths
Total Rooms8 Rooms
Building Area3,220 sqft Living Area
Gross Area3,766 sqft Gross Area
1st Floor1,706 sqft 1st Floor
Upper Floors1,514 sqft Upper Floors
Stories2 Stories
Interior StructureWallboard/Drywall Interior Structure

Exterior

Year BuiltBuilt 2004
Effective Year BuiltEffective 2010
Architectural StyleA-Frame Style
Exterior MaterialWood Shingle Exterior
Construction TypeFrame Construction
Roof MaterialAsphalt Roof
Lot Area6,302 sqft (0.145 acres)
Parking Spaces2 Parking Spaces
Garage TypeAttached Garage
Garage Area546 sqft Garage

Exterior Amenities

Deck Area32 sqft Deck
Patio Area192 sqft Patio
PorchPorch
Porch Area80 sqft Porch

Utilities and HVAC

Cooling SystemCentral Cooling
Heating SystemForced Air with Air Conditioning Heating

Location & Zoning

Account NumberR0507013
Street Address830 UNION AVE
CityBOULDER
StateCO
Zip80304-0709
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionLOT 1-B LAMBERT MINOR REP - A REP OF TR-1 A PT OF L4 BLK 2 SHEETS
Legal Range71
Legal Township1N
Legal Section13
Legal SubdivisionLAMBERT MINOR REP
Legal Tract1
Legal Block2
Legal Lot Number1B
JurisdictionBOULDER CO
Minor Civil DivisionBOULDER
Census Blockgroup1
Census Block1007
Census Tract12104

Owner

Source: Boulder County records · APN 1461-13-1-40-002

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 RecordIndividual Owner on File
Mailing Address830 UNION AVE, BOULDER, CO 80304-0709
Owner TypeOwner is a Company
VestingOwner is a Trust, Family Trust

Deeds, Mortgages & Sale History

DateDocument
Oct 23, 2020Correction Deed, Transfer
NOT AVAILABLE
Sep 30, 2020Intrafamily Transfer, Transfer · Conventional Mortgage
GUARANTEED RATE INC
Apr 22, 2020Quit Claim Deed, Transfer
NOT AVAILABLE
Mar 11, 2020Quit Claim Deed, Transfer
GUARANTEED RATE
Sep 19, 2017Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed NamesVerified Name on Deed
Known Transactions
  • Last Sale Amount on Feb 03, 2011
  • Deed Sale Price on Feb 03, 2011
  • Prior Sale Amount on Apr 27, 2009
Deed Doc Number20113130780
Last Transfer DateOct 12, 2020
Transfer Doc0003826628
Record RefreshedSep 20, 2026

October 2020: Correction Deed, Transfer

Document TypeCorrection Deed
JurisdictionBOULDER CO
Recording DateOct 23, 2020
Property Address830 UNION AVE, BOULDER, CO 80304-0709
Document Number0003826628
Instrument DateOct 12, 2020
Instrument3826628
Transaction TypeTransfer
Record UpdatedMay 11, 2021
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address830 UNION AVE BOULDER CO 803040709, BOULDER, CO 80304-0709

September 2020: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionBOULDER CO
Recording DateSep 30, 2020
Property Address830 UNION AVE, BOULDER, CO 80304-0709
Document Number0003819936
Instrument DateSep 24, 2020
Instrument3819936
Transaction TypeTransfer
Record UpdatedMar 31, 2022
Title CompanyTITLE COMPANY LLC

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
Address830 UNION AVE, BOULDER, CO 80304-0709

Mortgage

Document Number0003819937
DateSep 30, 2020
Instrument3819937
Lender
NameGUARANTEED RATE INC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term181 Months
DueOct 01, 2035

April 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionBOULDER CO
Recording DateApr 22, 2020
Property Address830 UNION AVE, BOULDER, CO 80304-0709
Document Number0003778943
Instrument DateApr 07, 2020
Instrument3778943
Transaction TypeTransfer
Record UpdatedJun 08, 2020
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Quitclaim Document
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address830 UNION AVE BOULDER CO 803040709, BOULDER, CO 80304-0709

March 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionBOULDER CO
Recording DateMar 11, 2020
Property Address830 UNION AVE, BOULDER, CO 80304-0709
Document Number0003771303
Instrument DateMar 06, 2020
Instrument3771303
Transaction TypeTransfer
Record UpdatedApr 02, 2020
Title CompanyRAVENSWOOD TITLE

Transaction

Tax$0.00
Additional
  • Quitclaim Document
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenant/Joint Tenant w/ Right Of Survivorship
Address830 UNION AVE BOULDER CO 803040709, BOULDER, CO 80304-0709

Mortgage

Document Number3771304
DateMar 11, 2020
Instrument3771304
Lender
NameGUARANTEED RATE
AddressCHICAGO, IL 60613
Agreement
AmountAmount Recorded
Term180 Months
DueMar 10, 2035

September 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionBOULDER CO
Recording DateSep 19, 2017
Property Address830 UNION AVE, BOULDER, CO 80304-0709
Document Number0003615317
Instrument DateSep 14, 2017
Instrument3615317
Transaction TypeTransfer
Record UpdatedSep 27, 2017
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim Document
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address830 UNION AVE BOULDER CO 803040709, BOULDER, CO 80304-0709

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateColorado
CountyBoulder County
MunicipalityBoulder City
Unified School DistrictBoulder Valley School District RE-2 (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$149,865 (+8.8%) Land $68,537 Building $81,328$2,203,900 (-) Land $1,007,900 Building $1,196,000
2025$13,133.00 (+3.39%)$137,744 (-8.65%) Land $62,994 Building $74,750$2,203,900 (-2.08%) Land $1,007,900 Building $1,196,000
2023$12,703.00 (+13.65%)$150,790 (+25.28%) Land $68,742 Building $82,048$2,250,600 (+29.96%) Land $1,026,000 Building $1,224,600
2022$11,177.00$120,360 Land $55,079 Building $65,281$1,731,800 Land $792,500 Building $939,300

Nearby Properties on Union Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures