429 Mapleton Ave, Apt A, Boulder, CO 80304 Property Records

Boulder County property record for 429 Mapleton Ave, Apt A, Boulder, CO 80304 · Last verified June 2026

Property Highlights

Property Type	Residential > Condominium / Townhouse > Condominium
Bedrooms	1 Beds
Bathrooms	1 Baths
Architecture Style	Townhouse
Year Built	Built 1906
Square Footage	642 sqft Living Area
Lot Size	25 sqft (0.001 acres)
Last Sale	$370,000 (2010)
Tax Bill	$4,023.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1461-25-4-85-005`
Alternative APNs	`R0140897` `0140897`

Interior

Bedrooms	1 Beds
Full Baths	1 Baths
Total Rooms	4 Rooms
Units	3 Units
Building Area	642 sqft Living Area
1st Floor	642 sqft 1st Floor
Stories	1 Stories
Interior Structure	Wallboard/Drywall Interior Structure

Exterior

Year Built	Built 1906
Effective Year Built	Effective 1906
Architectural Style	Townhouse Style
Exterior Material	Combination Exterior
Construction Type	Masonry/Concrete Masonry Units (CMUs) Construction
Roof Material	Other (not Classified) Roof
Lot Area	25 sqft (0.001 acres)

Utilities and HVAC

Heating System	Hot Water Heating

Location & Zoning

Account Number	R0140897
Street Address	429 MAPLETON AVE, A
City	BOULDER
State	CO
Zip	80304-3950
Property Usage	Residential Property Usage
Type	Residential > Condominium / Townhouse > Condominium
Legal Description	UNIT 429A MAPLETON AVENUE CONDOMINIUMS & UND 9.07% INT IN GCE
Legal Range	71
Legal Township	1N
Legal Section	25
Legal Subdivision	MAPLETON AVENUE CONDOMINIUMS - BO
Legal Block	4
Legal Unit	429A
Jurisdiction	BOULDER CO
Minor Civil Division	BOULDER
Census Blockgroup	4
Census Block	4004
Census Tract	12101

Owner

Source: Boulder County records · APN 1461-25-4-85-005

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 Record	Individual Owner on File
Mailing Address	1123 SPRUCE ST, 303, BOULDER, CO 80302-4001
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 Jun 25, 2010 Deed Sale Price on Jun 25, 2010 Prior Sale Amount on Jun 15, 2006
Deed Doc Number	20103082771
Prior Transfer Date	Dec 01, 2008
Prior Transfer Doc	0002968818
Record Refreshed	Sep 20, 2026

February 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	429 MAPLETON AVE APT A, A, BOULDER, CO 80304-3950
Document Number	0003580760
Instrument Date	Feb 17, 2017
Transaction Type	Mortgage
Record Updated	Mar 29, 2017

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	953 11TH ST BOULDER CO 803027204, BOULDER, CO 80302-7204

Mortgage

Document Number	0003580760
Date	Mar 16, 2017
Instrument	3580760

Lender

Name	VECTRA BK/CO
Type	Bank
Address	WESTMINSTER, CO 80234

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Mar 15, 2047

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, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$44,989 (+8.8%) Building $44,989	$661,600 (-) Building $661,600
2025	$4,023.00 (+31.3%)	$41,350 (+9.82%) Building $41,350	$661,600 (+17.73%) Building $661,600
2024	$3,064.00 (+1.86%)
2023	$3,008.00 (-5.56%)	$37,652 (+12.4%) Building $37,652	$561,976 (+16.59%) Building $561,976
2022	$3,185.00	$33,499 Building $33,499	$482,000 Building $482,000