604 Mapleton Ave, Boulder, CO 80304 Property Records

Boulder County property record for 604 Mapleton Ave, Boulder, CO 80304 · Last verified July 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	3 Beds
Bathrooms	2.75 Baths
Year Built	Built 1975
Square Footage	5,508 sqft Living Area
Lot Size	13,802 sqft (0.317 acres)
Garage	Attached, 399 sqft
Last Sale	$120,000 (1975)
Tax Bill	$24,049.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1461-25-4-09-004`
Alternative APNs	`R0009032` `0009032`

Interior

Bedrooms	3 Beds
Full Baths	2.75 Baths
Partial Baths	3 Partial Baths
Total Rooms	8 Rooms
Building Area	5,508 sqft Living Area
Gross Area	5,907 sqft Gross Area
1st Floor	1,836 sqft 1st Floor
Upper Floors	1,836 sqft Upper Floors
Basement Area	1,836 sqft Basement
Finished Basement	1,836 sqft Finished
Stories	2 Stories
Interior Structure	Plaster Interior Structure

Exterior

Year Built	Built 1913
Effective Year Built	Effective 1975
Exterior Material	Combination Exterior
Construction Type	Masonry/Concrete Masonry Units (CMUs) Construction
Roof Material	Asphalt Roof
Lot Area	13,802 sqft (0.317 acres)
Parking Spaces	2 Parking Spaces
Garage Type	Attached Garage
Garage Area	399 sqft Garage
Porch	Porch
Porch Area	286 sqft Porch

Utilities and HVAC

Heating System	Hot Water Heating

Location & Zoning

Account Number	R0009032
Street Address	604 MAPLETON AVE
City	BOULDER
State	CO
Zip	80304-3988
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOTS 21 22 23 & 24 BLK 6 MAPLETON
Legal Range	71
Legal Township	1N
Legal Section	25
Legal Subdivision	MAPLETON - BO
Legal Block	6
Legal Lot Number	21
Jurisdiction	BOULDER CO
Minor Civil Division	BOULDER
Census Blockgroup	4
Census Block	4011
Census Tract	12101

Owner

Source: Boulder County records · APN 1461-25-4-09-004

Assessment roll updated June 15, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individuals Owners
Mailing Address	2425 4TH ST, BOULDER, CO 80304-3975
Owner Type	Owner is an Individual, Couple or Unincorporated Entity
Vesting	Joint Tenant/Joint Tenant w/ Right Of Survivorship

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Known Transactions	Last Sale Amount on Nov 17, 1975 Deed Sale Price on Nov 17, 1975
Deed Doc Number	1975158281
Record Refreshed	Sep 20, 2026

April 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	604 MAPLETON AVE, BOULDER, CO 80304-3988
Transaction Type	Mortgage
Record Updated	Feb 05, 2021
Title Company	SERVICELINK

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003651026
Date	Apr 18, 2018
Instrument	3651026

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	241 Months
Due	May 01, 2038

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	Colorado
County	Boulder County
Municipality	Boulder City
Unified School District	Boulder Valley School District RE-2 (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$281,221 (+8.8%) Land $157,121 Building $124,100	$4,135,600 (-) Land $2,310,600 Building $1,825,000
2025	$24,049.00 (+1.72%)	$258,476 (-9.04%) Land $144,413 Building $114,063	$4,135,600 (-2.49%) Land $2,310,600 Building $1,825,000
2023	$23,642.00 (+1.02%)	$284,154 (+9.73%) Land $148,037 Building $136,117	$4,241,100 (+13.82%) Land $2,209,500 Building $2,031,600
2022	$23,403.00	$258,964 Land $111,714 Building $147,250	$3,726,100 Land $1,607,400 Building $2,118,700