456 Mapleton Ave, Boulder, CO 80304 Property Records

Boulder County property record for 456 Mapleton Ave, Boulder, CO 80304 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	5 Beds
Bathrooms	3.25 Baths
Year Built	Built 1988
Square Footage	3,388 sqft Living Area
Lot Size	10,824 sqft (0.249 acres)
Occupancy	Owner Occupied
Last Sale	$993,000 (2003)
Tax Bill	$10,428.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1461-25-4-07-001`
Alternative APNs	`R0004251` `0004251`

Interior

Bedrooms	5 Beds
Full Baths	3.25 Baths
Partial Baths	2 Partial Baths
Total Rooms	8 Rooms
Building Area	3,388 sqft Living Area
Gross Area	3,683 sqft Gross Area
1st Floor	1,750 sqft 1st Floor
Upper Floors	754 sqft Upper Floors
Basement Area	1,179 sqft Basement
Finished Basement	884 sqft Finished
Unfinished Basement	295 sqft Unfinished
Stories	2 Stories
Interior Structure	Wallboard/Drywall Interior Structure

Exterior

Year Built	Built 1940
Effective Year Built	Effective 1988
Architectural Style	A-Frame Style
Exterior Material	Wood Shingle Exterior
Construction Type	Frame Construction
Roof Material	Asphalt Roof
Lot Area	10,824 sqft (0.249 acres)
Parking Spaces	2 Parking Spaces
Garage Type	Detached Garage
Garage Area	672 sqft Garage
Deck Area	592 sqft Deck
Patio Area	966 sqft Patio

Utilities and HVAC

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

Location & Zoning

Account Number	R0004251
Street Address	456 MAPLETON AVE
City	BOULDER
State	CO
Zip	80304-3983
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOTS 17-19 BLK 5 MAPLETON
Legal Range	71
Legal Township	1N
Legal Section	25
Legal Subdivision	MAPLETON - BO
Legal Block	5
Legal Lot Number	17
Jurisdiction	BOULDER CO
Minor Civil Division	BOULDER
Census Blockgroup	4
Census Block	4013
Census Tract	12101

Owner

Source: Boulder County records · APN 1461-25-4-07-001

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	Individual Owner on File
Mailing Address	456 MAPLETON AVE, BOULDER, CO 80304-3983
Occupancy	Owner Occupied
Owner Type	Owner is a Company
Vesting	Owner is a Trust, Revocable Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Known Transactions	Last Sale Amount on Aug 04, 2003 Deed Sale Price on Aug 04, 2003 Prior Sale Amount on Jun 11, 1987
Deed Doc Number	20032481939
Last Transfer Date	May 14, 2013
Transfer Doc	0003312048
Record Refreshed	Sep 20, 2026

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	456 MAPLETON AVE, BOULDER, CO 80304-3983
Transaction Type	Mortgage
Record Updated	Jun 09, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003888575
Date	May 27, 2021
Instrument	3888575

Lender

Name	CHICAGO MORTGAGE SOLUTIONS CORP
Type	Mortgage Company
Address	DES PLAINES, IL 60018

Agreement

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

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		$119,000 (+8.8%) Land $100,640 Building $18,360	$1,750,000 (-) Land $1,480,000 Building $270,000
2025	$10,428.00 (-23.83%)	$109,375 (-32.57%) Land $92,500 Building $16,875	$1,750,000 (-27.72%) Land $1,480,000 Building $270,000
2023	$13,690.00 (+8.57%)	$162,214 (+19.46%) Land $131,092 Building $31,122	$2,421,100 (+23.92%) Land $1,956,600 Building $464,500
2022	$12,609.00	$135,789 Land $98,933 Building $36,856	$1,953,800 Land $1,423,500 Building $530,300