603 Maxwell Ave, Boulder, CO 80304 Property Records

Boulder County property record for 603 Maxwell Ave, Boulder, CO 80304 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	3 Beds
Bathrooms	1 Baths
Year Built	Built 1995
Square Footage	1,231 sqft Living Area
Lot Size	3,479 sqft (0.08 acres)
Occupancy	Owner Occupied
Last Sale	$1,196,200 (2020)
Tax Bill	$8,178.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1461-25-1-06-001`
Alternative APNs	`R0001552` `0001552`

Interior

Bedrooms	3 Beds
Full Baths	1 Baths
Total Rooms	5 Rooms
Building Area	1,231 sqft Living Area
Gross Area	1,255 sqft Gross Area
1st Floor	1,015 sqft 1st Floor
Basement Area	240 sqft Basement
Finished Basement	216 sqft Finished
Unfinished Basement	24 sqft Unfinished
Stories	1 Stories
Interior Structure	Plaster Interior Structure

Exterior

Year Built	Built 1925
Effective Year Built	Effective 1995
Architectural Style	Ranch Style
Exterior Material	Combination Exterior
Construction Type	Masonry/Concrete Masonry Units (CMUs) Construction
Roof Material	Tile Roof
Lot Area	3,479 sqft (0.08 acres)

Utilities and HVAC

Cooling System	Central Cooling
Heating System	Forced Air with Air Conditioning Heating

Location & Zoning

Account Number	R0001552
Street Address	603 MAXWELL AVE
City	BOULDER
State	CO
Zip	80304-3940
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	W 1/2 LOT 10 BLK 2 PHILLIPS
Legal Range	71
Legal Township	1N
Legal Section	25
Legal Subdivision	PHILLIPS - BO
Legal Block	2
Legal Lot Number	10
Jurisdiction	BOULDER CO
Minor Civil Division	BOULDER
Census Blockgroup	4
Census Block	4001
Census Tract	12101

Owner

Source: Boulder County records · APN 1461-25-1-06-001

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 Record	2 Individuals Owners
Mailing Address	603 MAXWELL AVE, BOULDER, CO 80304-3940
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Sep 09, 2021	Deed of Trust, Mortgage · Conventional Mortgage US BANK NA
Jul 06, 2017	Deed of Trust, Mortgage · Adjustable Rate Mortgage (ARM) FIRST REPUBLIC BANK
Jul 16, 2020	Warranty Deed, Transfer · Conventional Mortgage US BANK NA
May 21, 2020	Grant Deed, Transfer NOT AVAILABLE
Jun 07, 2019	Quit Claim Deed, Transfer NOT AVAILABLE

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Known Transactions	Last Sale Amount on Jul 16, 2020 Deed Sale Price on Jul 16, 2020 Prior Sale Amount on Nov 03, 2015
Deed Doc Number	20203798590
Prior Transfer Date	Jun 04, 2019
Prior Transfer Doc	0003716865
Record Refreshed	Sep 20, 2026

September 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	603 MAXWELL AVE, BOULDER, CO 80304-3940
Transaction Type	Mortgage
Record Updated	Sep 22, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003912867
Date	Sep 09, 2021
Instrument	3912867

Lender

Name	US BANK NA
Type	Bank
Address	OWENSBORO, KY 42301

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Oct 01, 2051

July 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	603 MAXWELL AVE, BOULDER, CO 80304-3940
Transaction Type	Mortgage
Record Updated	Feb 05, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003601987
Date	Jul 06, 2017
Instrument	3601987

Lender

Name	FIRST REPUBLIC BANK
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Type	Adjustable Rate Mortgage (ARM)
Amount	Amount Recorded
Term	360 Months
Due	Jul 01, 2047

Interest

Rate Type	Adjustable Rate
Rate	3.65%
Type Change Date	Jul 01, 2024
Change Frequency	Monthly (Revolving credit lines are monthly unless stated otherwise).
Min Rate At Change	2.5%
Index	1-Month LIBOR
Max Rate	9.95%

July 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jul 16, 2020
Property Address	603 MAXWELL AVE, BOULDER, CO 80304-3940
Document Number	0003798590
Instrument Date	Jul 14, 2020
Instrument	3798590
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	LAND TITLE GUARANTEE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$119.62
Amount Accuracy	Full Amount Stated
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name
Address	603 MAXWELL AVE, 603, BOULDER, CO 80304-3940

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	603 MAXWELL AVE, BOULDER, CO 80304-3940

Mortgage

Document Number	0003798591
Date	Jul 16, 2020
Instrument	3798591

Lender

Name	US BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Aug 01, 2050

May 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	May 21, 2020
Property Address	603 MAXWELL AVE, BOULDER, CO 80304-3940
Document Number	0003785518
Instrument Date	May 20, 2020
Instrument	3785518
Transaction Type	Transfer
Record Updated	Jul 10, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	603 MAXWELL AVE BOULDER CO 803043940, BOULDER, CO 80304-3940

June 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOULDER CO
Recording Date	Jun 07, 2019
Property Address	603 MAXWELL AVE, BOULDER, CO 80304-3940
Document Number	0003716865
Instrument Date	Jun 04, 2019
Instrument	3716865
Transaction Type	Transfer
Record Updated	Jun 14, 2019
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Document Interfamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants In Common
Address	603 MAXWELL AVE BOULDER CO 803043940, BOULDER, CO 80304-3940

Tax Assessment & Valuation

Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 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, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$93,317 (+8.8%) Land $78,758 Building $14,559	$1,372,300 (-) Land $1,158,200 Building $214,100
2025	$8,178.00 (+2.26%)	$85,769 (-10.12%) Land $72,388 Building $13,381	$1,372,300 (-3.65%) Land $1,158,200 Building $214,100
2023	$7,997.00 (+4.36%)	$95,428 (+16.78%) Land $78,812 Building $16,616	$1,424,300 (+21.13%) Land $1,176,300 Building $248,000
2022	$7,663.00	$81,718 Land $50,909 Building $30,809	$1,175,800 Land $732,500 Building $443,300

603 Maxwell Ave, Boulder, CO 80304 Property Records

Property Highlights

Property Details

APN / Parcel Number

Interior

Exterior

Utilities and HVAC

Location & Zoning

Owner

Deeds, Mortgages & Sale History

Assessor's Deed Record

September 2021: Deed of Trust, Mortgage

Transferred To (Grantee/Buyer)

Mortgage

Lender

Agreement

July 2017: Deed of Trust, Mortgage

Transferred To (Grantee/Buyer)

Mortgage

Lender

Agreement

Interest

July 2020: Warranty Deed, Transfer

Transaction

Transferred From (Grantor/Seller)

Transferred To (Grantee/Buyer)

Mortgage

Lender

Agreement

May 2020: Grant Deed, Transfer

Transaction

Transferred From (Grantor/Seller)

Transferred To (Grantee/Buyer)

June 2019: Quit Claim Deed, Transfer

Transaction

Transferred From (Grantor/Seller)

Transferred To (Grantee/Buyer)

Tax Assessment & Valuation

Property Jurisdictions

Tax Bill & Assessment History

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