403 Maxwell Ave, Boulder, CO 80304 Property Records

Boulder County property record for 403 Maxwell Ave, Boulder, CO 80304 · Last verified June 2026

Property Highlights

Property Type	Residential > Multi-Unit > Multi-Family Dwellings
Bedrooms	3 Beds
Bathrooms	2 Baths
Architecture Style	A-Frame
Year Built	Built 1975
Square Footage	2,968 sqft Living Area
Lot Size	10,718 sqft (0.246 acres)
Last Sale	$79,000 (1977)
Tax Bill	$12,405.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1461-25-1-01-011`
Alternative APNs	`R0006323` `0006323`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Units	4 Units
Building Area	2,968 sqft Living Area
Gross Area	3,484 sqft Gross Area
1st Floor	2,088 sqft 1st Floor
Upper Floors	880 sqft Upper Floors
Basement Area	516 sqft Basement
Stories	2 Stories
Interior Structure	Plaster Interior Structure

Exterior

Year Built	Built 1909
Effective Year Built	Effective 1975
Architectural Style	A-Frame Style
Exterior Material	Wood Shingle Exterior
Construction Type	Frame Construction
Roof Material	Asphalt Roof
Lot Area	10,718 sqft (0.246 acres)

Exterior Amenities

Total Buildings	2 Total Buildings
Deck Area	48 sqft Deck
Porch	Porch
Porch Area	156 sqft Porch

Utilities and HVAC

Heating System	Forced Air with Air Conditioning Heating

Location & Zoning

Account Number	R0006323
Street Address	403 MAXWELL AVE
City	BOULDER
State	CO
Zip	80304-4505
Property Usage	Residential Property Usage
Type	Residential > Multi-Unit > Multi-Family Dwellings
Legal Description	E 10 FT LOT 16 & ALL LOTS 17-19 INC BLK 10 MAXWELLS
Legal Range	71
Legal Township	1N
Legal Section	25
Legal Subdivision	MAXWELLS - BO
Legal Block	10
Legal Lot Number	17
Jurisdiction	BOULDER CO
Minor Civil Division	BOULDER
Census Blockgroup	4
Census Block	4003
Census Tract	12101

Owner

Source: Boulder County records · APN 1461-25-1-01-011

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	Individual Owner on File
Mailing Address	7006 25TH AVE NW, SEATTLE, WA 98117-5848
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Known Transactions	Last Sale Amount on Feb 14, 1977 Deed Sale Price on Feb 14, 1977 Prior Sale Amount on Mar 20, 1974
Deed Doc Number	1977210562
Record Refreshed	Sep 20, 2026

February 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	403 MAXWELL AVE, BOULDER, CO 80304-4505
Transaction Type	Mortgage
Record Updated	Mar 31, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003767787
Date	Feb 25, 2020
Instrument	3767787

Lender

Name	ALPINE BANK
Type	Bank
Address	RIFLE, CO 81650

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

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 and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$139,713 (+8.8%) Land $125,742 Building $13,971	$2,054,600 (-) Land $1,849,140 Building $205,460
2025	$12,405.00 (-1.07%)	$128,412 (-11.18%) Land $115,571 Building $12,841	$2,054,600 (-4.78%) Land $1,849,140 Building $205,460
2024	$12,539.00 (+1.81%)
2023	$12,316.00 (+23.77%)	$144,572 (+36.97%) Land $130,115 Building $14,457	$2,157,800 (+39.14%) Land $1,942,020 Building $215,780
2022	$9,951.00	$105,549 Land $87,434 Building $18,115	$1,550,810 Land $1,285,800 Building $265,010