1891 Oak Ave, Boulder, CO 80304 Property Records

Boulder County property record for 1891 Oak Ave, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	2 bd · 2 ba · 1,584 sqft · built 2003
Lot Size	0.517 acres (22,517 sqft)
Owner	Individual Name on File
Last Sale	$589,000 (May 2012)
Tax Bill	$8,052 (2025)
Deeds & Mortgages	Jul 2020 Mortgage Aug 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1463-18-3-08-015`

Property Details

APN / Parcel Number

Primary APN	`1463-18-3-08-015`
Alternative APNs	`R0146530` `0146530`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,584 sqft Living Area
Gross Area	1,800 sqft
1st Floor Area	1,008 sqft
Upper Floors Area	576 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 2003
Effective Year Built	Effective 2007
Architectural Style	A-Frame
Exterior Material	Combination
Construction Type	Frame
Roof Material	Asphalt
Lot Area	22,517 sqft (0.517 acres)
Garage Type	Detached
Garage Area	384 sqft
Parking Spaces	2 Parking Spaces

Exterior Amenities

Porch	Enclosed Porch
Porch Area	408 sqft
Shed	1 Shed
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0146530
Street Address	1891 OAK AVE
City	BOULDER
State	CO
Zip	80304-1224
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	S 32 FT OF LOT 7 & ALL OF LOT 14 BLK 25 MOORES SEE SPLIT ID 32878 PER REC# 2059490 LOT LINE ADJUSTMENT PER REC# 2081449
Legal Range	70
Legal Township	1N
Legal Section	18
Legal Subdivision	MOORES & REPLAT LOT 15 BLK 30 - BO
Legal Block	25
Legal Lot Number	7
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3009
Census Tract	12105

Owner

Source: Boulder County assessment roll, as of June 15, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	1891 OAK AVE, BOULDER, CO 80304-1224
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jul 20, 2020	Deed of Trust, Mortgage · Commercial Mortgage UMB BANK NA
Aug 26, 2020	Deed of Trust, Mortgage · Conventional Mortgage CALIBER HOME LOANS INC

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	May 4, 2012 · Amount on Record
Deed Sale	May 4, 2012 · Amount on Record
Prior Sale	May 31, 2011 · Amount on Record
Deed Document Number	20123220867
Prior Transfer Date	Apr 4, 2012
Prior Transfer Doc	0003216990
Record Updated	Sep 20, 2026

July 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	1891 OAK AVE, BOULDER, CO 80304-1224
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003799078
Date	Jul 20, 2020
Instrument	3799078

Lender

Name	UMB BANK NA
Type	Bank
Address	DENVER, CO 80207

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	1891 OAK AVE, BOULDER, CO 80304-1224
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIRST AMERICAN MORTGAGE SLN

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003810254
Date	Aug 26, 2020
Instrument	3810254

Lender

Name	CALIBER HOME LOANS INC
Type	Mortgage Company
Address	COPPELL, TX 75019

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	357 Months
Due	May 1, 2050

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of June 15, 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

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$91,888 (+8.8%) Land $79,839 Building $12,049	$1,351,300 (-) Land $1,174,100 Building $177,200
2025	$8,052.00 (+3.06%)	$84,456 (-10.31%) Land $73,381 Building $11,075	$1,351,300 (-3.85%) Land $1,174,100 Building $177,200
2023	$7,813.00 (+13.04%)	$94,162 (+26.5%) Land $75,817 Building $18,345	$1,405,400 (+31.22%) Land $1,131,600 Building $273,800
2022	$6,912.00	$74,437 Land $61,487 Building $12,950	$1,071,030 Land $884,700 Building $186,330

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.

Flood

Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 32 policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	32 in force
Nearby Flood Claims	26 (2005–2015)
Claims Outside the SFHA	10 of 26
Most Recent Claim	May 2015 · Severe Storms, Tornadoes, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 23 claims

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 80% of the US · lower than 91% of Colorado
Wildfire Likelihood	0.02% annual chance
Exposure	None beyond ember reach

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	CITY OF BOULDER serves 166,080 people · EPA ID CO0107152
Water Source	Surface water
Last State Inspection	Sep 2024
Lead	2 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	Haloacetic acids resolved · Jul 2017
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 482 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Lumen Technologies Fiber · DSL in parts of the area	8,000 / 8,000
Ayva Fixed Wireless	2,500 / 2,500
Xfinity Cable	2,000 / 250
Live Wire Networks Fixed Wireless	250 / 100

May also be available: T-Mobile USA, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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