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835 12th St, Boulder, CO 80302 Property Records

Boulder County property record for 835 12th St, Boulder, CO 80302 · Last verified August 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms4 Beds
Bathrooms2.25 Baths
Year BuiltBuilt 1975
Square Footage3,350 sqft Living Area
Lot Size9,781 sqft (0.225 acres)
OccupancyOwner Occupied
Last Sale$500,000 (1996)
Tax Bill$11,542.00 (2025)

Property Details

APN / Parcel Number

Primary APN1463-31-3-23-008
Alternative APN
  • R0005232

Interior

Bedrooms4 Beds
Full Baths2.25 Baths
Partial Baths2 Partial Baths
Total Rooms12 Rooms
Building Area3,350 sqft Living Area
Gross Area4,053 sqft Gross Area
1st Floor1,185 sqft 1st Floor
Upper Floors1,434 sqft Upper Floors
Basement Area1,161 sqft Basement
Finished Basement731 sqft Finished
Unfinished Basement430 sqft Unfinished
Stories2 Stories
Interior StructurePlaster Interior Structure

Exterior

Year BuiltBuilt 1920
Effective Year BuiltEffective 1975
Exterior MaterialCombination Exterior
Construction TypeMasonry/Concrete Masonry Units (CMUs) Construction
Roof MaterialAsphalt Roof
Lot Area9,781 sqft (0.225 acres)
Parking Spaces1 Parking Spaces
Garage TypeAttached Garage
Garage Area273 sqft Garage
PorchPorch
Porch Area280 sqft Porch

Utilities and HVAC

Heating SystemHot Water Heating

Location & Zoning

Account NumberR0005232
Street Address835 12TH ST
CityBOULDER
StateCO
Zip80302-7520
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionLOTS 32-33-34 BLK 25 UNIVERSITY PLACE
Legal Range70
Legal Township1N
Legal Section31
Legal SubdivisionUNIVERSITY PLACE - BO
Legal Block25
Legal Lot Number32
JurisdictionBOULDER CO
Minor Civil DivisionBOULDER
Census Blockgroup3
Census Block3003
Census Tract12401

Owner

Source: Boulder County records · APN 1463-31-3-23-008

Assessment roll updated June 15, 2026 · Last verified August 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 Address835 12TH ST, BOULDER, CO 80302-7520
OccupancyOwner Occupied
Owner TypeOwner is a Company
VestingOwner is a Trust, Trust

Deeds, Mortgages & Sale History

DateDocument
Aug 11, 2026Special Warranty Deed, Transfer
NONE LISTED ON DOCUMENT
Aug 11, 2026Affidavit, Transfer
Jul 01, 2020Grant Deed, Transfer
HERITAGE TITLE COMPANY, HERITAGE TITLE CO.
Jul 01, 2020Grant Deed, Transfer
HERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Assessor's Deed Record

Deed NamesVerified Name on Deed
Known Transactions
  • Last Sale Amount on Jan 02, 1996
  • Deed Sale Price on Jan 02, 1996
  • Prior Sale Amount on Sep 06, 1989
Deed Doc Number19961573735
Last Transfer DateAug 11, 2026
Transfer Doc0004143461
Record RefreshedSep 20, 2026

August 2026: Special Warranty Deed, Transfer

Document TypeSpecial Warranty Deed
JurisdictionBOULDER CO
Recording DateAug 11, 2026
Property Address835 12TH ST, BOULDER, CO 80302-7520
Document Number0004143461
Instrument DateAug 11, 2026
Instrument20264143461
Transaction TypeTransfer
Record UpdatedAug 20, 2026
Title CompanyNONE LISTED ON DOCUMENT

Transaction

Tax$0.00
Amount AccuracyFull Amount Stated

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipTrust
Address835 12TH ST, BOULDER, CO 80302-7520

August 2026: Affidavit, Transfer

Document TypeAffidavit
JurisdictionBOULDER CO
Recording DateAug 11, 2026
Property Address835 12TH ST, BOULDER, CO 80302-7520
Document Number0004143420
Instrument DateAug 10, 2026
Instrument20264143420
Transaction TypeTransfer
Record UpdatedAug 20, 2026

Transaction

Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address835 12TH ST, BOULDER, CO 80302-7520

July 2020: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionBOULDER CO
Recording DateJul 01, 2020
Property Address835 12TH ST, BOULDER, CO 80302-7520
Document Number0003795232
Instrument DateJun 24, 2020
Instrument3795232
Transaction TypeTransfer
Record UpdatedAug 13, 2020
Title CompanyHERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Transaction

Tax$0.00
Additional
  • Partial Interest

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address1035 PEARL ST #1016 BOULDER CO 803025130, 1016, BOULDER, CO 80302-5130

July 2020: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionBOULDER CO
Recording DateJul 01, 2020
Property Address835 12TH ST, BOULDER, CO 80302-7520
Document Number0003795233
Instrument DateJun 24, 2020
Instrument3795233
Transaction TypeTransfer
Record UpdatedAug 17, 2020
Title CompanyHERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Transaction

AmountAmount Recorded
Tax$527.00
Amount AccuracyConfirmed
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address505 PINE ST BOULDER CO 803024737, BOULDER, CO 80302-4737

Tax Assessment & Valuation

Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified August 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$130,791 (+8.8%) Land $74,990 Building $55,801$1,923,400 (-) Land $1,102,800 Building $820,600
2025$11,542.00 (+2.88%)$120,213 (-7.85%) Land $68,925 Building $51,288$1,923,400 (-1.21%) Land $1,102,800 Building $820,600
2024$11,219.00 (+1.79%)
2023$11,022.00 (+7.22%)$130,449 (+19.9%) Land $70,229 Building $60,220$1,947,000 (+24.37%) Land $1,048,200 Building $898,800
2022$10,280.00$108,802 Land $57,539 Building $51,263$1,565,500 Land $827,900 Building $737,600

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