845 12th St, Boulder, CO 80302 Property Records

Boulder County property record for 845 12th St, Boulder, CO 80302 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	5 Beds
Bathrooms	3.25 Baths
Year Built	Built 1995
Square Footage	4,130 sqft Living Area
Lot Size	6,097 sqft (0.14 acres)
Occupancy	Owner Occupied
Last Sale	$379,000 (1993)
Tax Bill	$16,929.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1463-31-3-23-009`
Alternative APNs	`R0007934` `0007934`

Interior

Bedrooms	5 Beds
Full Baths	3.25 Baths
Partial Baths	2 Partial Baths
Total Rooms	12 Rooms
Building Area	4,130 sqft Living Area
Gross Area	4,495 sqft Gross Area
1st Floor	1,405 sqft 1st Floor
Upper Floors	1,922 sqft Upper Floors
Basement Area	1,168 sqft Basement
Finished Basement	803 sqft Finished
Unfinished Basement	365 sqft Unfinished
Stories	2 Stories
Interior Structure	Plaster Interior Structure

Exterior

Year Built	Built 1908
Effective Year Built	Effective 1995
Architectural Style	A-Frame Style
Exterior Material	Combination Exterior
Construction Type	Masonry/Concrete Masonry Units (CMUs) Construction
Roof Material	Asphalt Roof
Lot Area	6,097 sqft (0.14 acres)
Parking Spaces	2 Parking Spaces
Garage Type	Detached Garage
Garage Area	432 sqft Garage
Deck Area	466 sqft Deck
Porch	Porch
Porch Area	320 sqft Porch

Utilities and HVAC

Heating System	Hot Water Heating

Location & Zoning

Account Number	R0007934
Street Address	845 12TH ST
City	BOULDER
State	CO
Zip	80302-7520
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOTS 35-36 BLK 25 UNIVERSITY PLACE
Legal Range	70
Legal Township	1N
Legal Section	31
Legal Subdivision	UNIVERSITY PLACE - BO
Legal Block	25
Legal Lot Number	35
Jurisdiction	BOULDER CO
Minor Civil Division	BOULDER
Census Blockgroup	3
Census Block	3003
Census Tract	12401

Owner

Source: Boulder County records · APN 1463-31-3-23-009

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	2 Individuals Owners
Mailing Address	845 12TH ST, BOULDER, CO 80302-7520
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Known Transactions	Last Sale Amount on Apr 07, 1993 Deed Sale Price on Apr 07, 1993 Prior Sale Amount on May 01, 1987
Deed Doc Number	19931280852
Last Transfer Date	Nov 22, 2002
Transfer Doc	0002369613
Record Refreshed	Sep 20, 2026

March 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	845 12TH ST, BOULDER, CO 80302-7520
Transaction Type	Mortgage
Record Updated	Oct 21, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003867153
Date	Mar 16, 2021
Instrument	3867153

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Mar 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		$193,175 (+8.8%) Land $59,208 Building $133,967	$2,840,800 (-) Land $870,700 Building $1,970,100
2025	$16,929.00 (+4.64%)	$177,550 (-7.06%) Land $54,419 Building $123,131	$2,840,800 (-0.36%) Land $870,700 Building $1,970,100
2023	$16,178.00 (+4.75%)	$191,030 (+14.86%) Land $55,449 Building $135,581	$2,851,200 (+19.15%) Land $827,600 Building $2,023,600
2022	$15,444.00	$166,313 Land $45,432 Building $120,881	$2,393,000 Land $653,700 Building $1,739,300