1437 Mapleton Ave, Boulder, CO 80304 Property Records

Boulder County property record for 1437 Mapleton Ave, Boulder, CO 80304 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	4 Beds
Bathrooms	3.25 Baths
Year Built	Built 1980
Square Footage	2,792 sqft Living Area
Lot Size	5,335 sqft (0.123 acres)
Occupancy	Owner Occupied
Last Sale	$622,000 (2008)
Tax Bill	$10,977.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1463-30-2-32-009`
Alternative APNs	`R0005589` `0005589`

Interior

Bedrooms	4 Beds
Full Baths	3.25 Baths
Partial Baths	2 Partial Baths
Total Rooms	6 Rooms
Building Area	2,792 sqft Living Area
1st Floor	1,660 sqft 1st Floor
Upper Floors	1,132 sqft Upper Floors
Stories	2 Stories
Interior Structure	Wallboard/Drywall Interior Structure

Exterior

Year Built	Built 1920
Effective Year Built	Effective 1980
Exterior Material	Combination Exterior
Construction Type	Masonry/Concrete Masonry Units (CMUs) Construction
Roof Material	Asphalt Roof
Lot Area	5,335 sqft (0.123 acres)
Parking Spaces	2 Parking Spaces
Garage Type	Detached Garage
Garage Area	440 sqft Garage
Porch	Porch
Porch Area	140 sqft Porch

Utilities and HVAC

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

Location & Zoning

Account Number	R0005589
Street Address	1437 MAPLETON AVE
City	BOULDER
State	CO
Zip	80304-4160
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOT 8 BLK 10 BOULDER NORTH & LOT 11 BLK 176 & 5 FT STRIP ADJ BLK 176 BOULDER O T
Legal Range	70
Legal Township	1N
Legal Section	30
Legal Subdivision	BOULDER O T EAST & WEST & NORTH - BO
Legal Block	10,17
Legal Lot Number	8
Jurisdiction	BOULDER CO
Minor Civil Division	BOULDER
Census Blockgroup	1
Census Block	1015
Census Tract	12106

Owner

Source: Boulder County records · APN 1463-30-2-32-009

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	1437 MAPLETON AVE, BOULDER, CO 80304-4160
Occupancy	Owner Occupied
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 Oct 03, 2008 Deed Sale Price on Oct 03, 2008 Apr 18, 2008
Deed Doc Number	20082958113
Record Refreshed	Sep 20, 2026

November 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	1437 MAPLETON AVE, BOULDER, CO 80304-4160
Transaction Type	Mortgage
Record Updated	Jul 26, 2022
Title Company	LAND TITLE GUARANTEE CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003836095
Date	Nov 24, 2020
Instrument	3836095

Lender

Name	GSF MORTGAGE CORP
Type	Mortgage Company
Address	BROOKFIELD, WI 53005

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Dec 01, 2035

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		$125,263 (+8.8%) Land $63,743 Building $61,520	$1,842,100 (-) Land $937,400 Building $904,700
2025	$10,977.00 (+21.78%)	$115,132 (+6.54%) Land $58,588 Building $56,544	$1,842,100 (+14.21%) Land $937,400 Building $904,700
2023	$9,014.00 (+19.17%)	$108,065 (+32.67%) Land $61,694 Building $46,371	$1,612,900 (+37.62%) Land $920,800 Building $692,100
2022	$7,564.00	$81,454 Land $48,150 Building $33,304	$1,172,000 Land $692,800 Building $479,200