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617 Mapleton Ave, Boulder, CO 80304 Property Records

Boulder County property record for 617 Mapleton Ave, Boulder, CO 80304 · Last verified June 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms4 Beds
Bathrooms4.75 Baths
Year BuiltBuilt 2010
Square Footage3,950 sqft Living Area
Lot Size8,286 sqft (0.19 acres)
GarageDetached, 264 sqft
Last Sale$4,950,000 (2023)
Tax Bill$25,317.00 (2025)

Property Details

APN / Parcel Number

Primary APN1461-25-4-04-005
Alternative APNs
  • R0000702
  • 0000702

Interior

Bedrooms4 Beds
Full Baths4.75 Baths
Partial Baths4 Partial Baths
Total Rooms9 Rooms
Building Area3,950 sqft Living Area
Gross Area4,052 sqft Gross Area
1st Floor1,771 sqft 1st Floor
Upper Floors280 sqft Upper Floors
Basement Area1,023 sqft Basement
Finished Basement921 sqft Finished
Unfinished Basement102 sqft Unfinished
Stories2 Stories
Interior StructurePlaster Interior Structure

Exterior

Year BuiltBuilt 1900
Effective Year BuiltEffective 2010
Exterior MaterialCombination Exterior
Construction TypeMasonry/Concrete Masonry Units (CMUs) Construction
Roof MaterialAsphalt Roof
Lot Area8,286 sqft (0.19 acres)
Parking Spaces1 Parking Spaces
Garage TypeDetached Garage
Garage Area264 sqft Garage
Total Buildings2 Total Buildings
PorchPorch
Porch Area114 sqft Porch

Utilities and HVAC

Heating SystemForced Air with Air Conditioning Heating

Location & Zoning

Account NumberR0000702
Street Address617 MAPLETON AVE
CityBOULDER
StateCO
Zip80304-3989
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionLOTS 27-28 BLK 3 MAPLETON
Legal Range71
Legal Township1N
Legal Section25
Legal SubdivisionMAPLETON - BO
Legal Block3
Legal Lot Number27
JurisdictionBOULDER CO
Minor Civil DivisionBOULDER
Census Blockgroup4
Census Block4006
Census Tract12101

Owner

Source: Boulder County records · APN 1461-25-4-04-005

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 Address3980 BROADWAY ST, 103, BOULDER, CO 80304-1161
Owner TypeOwner is a Company
VestingOwner is a Trust, Revocable Trust

Deeds, Mortgages & Sale History

DateDocument
Sep 16, 2021Deed of Trust, Mortgage · Building or Construction Mortgage
ELEVATIONS CU
Jan 11, 2023Warranty Deed, Transfer
LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO
Dec 11, 2020Deed of Trust, Mortgage · Commercial Mortgage
ELEVATIONS CU
Nov 25, 2020Warranty Deed, Transfer
LAND TITLE GUARANTEE
Aug 07, 2019Loan 1 (Only) is a Reverse Mortgage, Transfer
AMERICAN ADVISORS

Assessor's Deed Record

Deed NamesVerified Name on Deed
Known Transactions
  • Last Sale Amount on Jan 11, 2023
  • Deed Sale Price on Jan 11, 2023
  • Prior Sale Amount on Nov 25, 2020
Deed Doc Number20233994429
Prior Transfer DateJul 31, 2019
Prior Transfer Doc0003728839
Record RefreshedSep 20, 2026

September 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address617 MAPLETON AVE, BOULDER, CO 80304-3989
Transaction TypeMortgage
Record UpdatedFeb 09, 2026

Transferred To (Grantee/Buyer)

NameVerified Name
Address2211 CENTRAL AVE, BOULDER, CO 80301-2896

Mortgage

Document Number0003914344
DateSep 16, 2021
Instrument3914344
Lender
NameELEVATIONS CU
TypeCredit Union
AddressBOULDER, CO 80301
Agreement
TypeBuilding or Construction Mortgage
AmountAmount Recorded
Term24 Months
DueSep 10, 2023
Interest
Rate TypeAdjustable Rate

January 2023: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateJan 11, 2023
Property Address617 MAPLETON AVE, BOULDER, CO 80304-3989
Document Number0003994429
Instrument DateJan 10, 2023
Instrument3994429
Transaction TypeTransfer
Record UpdatedFeb 09, 2026
Title CompanyLAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO

Transaction

AmountAmount Recorded
Tax$495.00
Amount AccuracyFull Amount Stated
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name
Address617 MAPLETON AVE, BOULDER, CO 80304-3989

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address3980 BROADWAY ST STE 103, 103, BOULDER, CO 80304-1161

December 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address617 MAPLETON AVE, BOULDER, CO 80304-3989
Transaction TypeMortgage
Record UpdatedFeb 05, 2021

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0003841029
DateDec 11, 2020
Instrument3841029
Lender
NameELEVATIONS CU
TypeCredit Union
AddressBOULDER, CO 80301
Agreement
TypeCommercial Mortgage
AmountAmount Recorded
Term18 Months
DueJun 09, 2022

November 2020: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateNov 25, 2020
Property Address617 MAPLETON AVE, BOULDER, CO 80304-3989
Document Number0003836390
Instrument DateNov 23, 2020
Instrument3836390
Transaction TypeTransfer
Record UpdatedDec 23, 2020
Title CompanyLAND TITLE GUARANTEE

Transaction

AmountAmount Recorded
Tax$123.00
Amount AccuracyConfirmed
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address2450 BROADWAY ST BOULDER CO 803044109, BOULDER, CO 80304-4109

August 2019: Loan 1 (Only) is a Reverse Mortgage, Transfer

Document TypeLoan 1 (Only) is a Reverse Mortgage
JurisdictionBOULDER CO
Recording DateAug 07, 2019
Property Address617 MAPLETON AVE, BOULDER, CO 80304-3989
Document Number0003728839
Instrument DateJul 31, 2019
Instrument3728839
Transaction TypeTransfer
Record UpdatedAug 14, 2019
Title CompanyAVALANCHE TITLE AND ESCROW LLC, AVALANCHE TITLE & ESCROW LLC

Transaction

Tax$0.00
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address4240 IRIS ST WHEAT RIDGE CO 800332940, WHEAT RIDGE, CO 80033-2940

Mortgage

Document Number3728840
DateAug 07, 2019
Instrument3728840
Lender
NameAMERICAN ADVISORS
Address3800 W CHAPMAN AVE # 3RD, ORANGE, CA 92868-1638
Agreement
AmountAmount Recorded
Term696 Months
DueAug 06, 2077
Interest
Rate TypeFixed Rate

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 is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

YearTax BillAssessed ValueAssessed Market Value
2026$288,884 (+8.8%) Land $121,740 Building $167,144$4,248,300 (-) Land $1,790,300 Building $2,458,000
2025$25,317.00 (+23.16%)$265,519 (+9.85%) Land $111,894 Building $153,625$4,248,300 (+17.76%) Land $1,790,300 Building $2,458,000
2023$20,556.00 (+148.02%)$241,716 (+170.8%) Land $118,778 Building $122,938$3,607,700 (+180.91%) Land $1,772,800 Building $1,834,900
2022$8,288.00$89,259 Land $80,333 Building $8,926$1,284,300 Land $1,155,870 Building $128,430

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