860 Union Ave, Boulder, CO 80304 Property Records

Boulder County property record for 860 Union Ave, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	5 bd · 3.75 ba · 3,840 sqft · built 2001
Lot Size	0.147 acres (6,412 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,325,000 (Nov 2015)
Tax Bill	$13,551 (2025)
Deeds & Mortgages	Jul 2026 Transfer Apr 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1461-13-1-28-001`

Property Details

APN / Parcel Number

Primary APN	`1461-13-1-28-001`
Alternative APNs	`R0034008` `0034008`

Interior

Bedrooms	5 Beds
Full Baths	3.75 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	3,840 sqft Living Area
Gross Area	4,778 sqft
1st Floor Area	1,668 sqft
Upper Floors Area	1,272 sqft
Basement Area	1,378 sqft
Finished Basement	900 sqft
Unfinished Basement	478 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 2001
Effective Year Built	Effective 2001
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	6,412 sqft (0.147 acres)
Garage Type	Attached
Garage Area	460 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Porch Area	325 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0034008
Street Address	860 UNION AVE
City	BOULDER
State	CO
Zip	80304-0709
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 1 MAKENA TAYLOR SPLIT SEE ID 106168-106170
Legal Range	71
Legal Township	1N
Legal Section	13
Legal Subdivision	MAKENA TAYLOR SUB - BO
Legal Block	1
Legal Lot Number	1
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1007
Census Tract	12104

Owner

Source: Boulder County records, 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	2 Individual Names on Record
Mailing Address	860 UNION AVE, BOULDER, CO 80304-0709
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jul 14, 2026	Quit Claim Deed, Transfer NONE LISTED ON DOCUMENT
Apr 14, 2021	Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 18, 2015 · Amount on Record
Deed Sale	Nov 18, 2015 · Amount on Record
Prior Sale	Apr 23, 2002 · Amount on Record
Deed Document Number	20153486022
Record Updated	Sep 20, 2026

July 2026: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOULDER CO
Recording Date	Jul 14, 2026
Property Address	860 UNION AVE, BOULDER, CO 80304-0709
Document Number	0004139856
Instrument Date	Jul 14, 2026
Instrument	20264139856
Transaction Type	Transfer
Record Updated	Jul 23, 2026
Title Company	NONE LISTED ON DOCUMENT

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	860 UNION AVE, BOULDER, CO 80304-0709

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	860 UNION AVE, BOULDER, CO 80304-0709
Transaction Type	Mortgage
Record Updated	Mar 31, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003876702
Date	Apr 14, 2021
Instrument	3876702

Lender

Name	BANK OF AMERICA NA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2051

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		$154,632 (+8.8%) Land $64,892 Building $89,740	$2,274,000 (-) Land $954,300 Building $1,319,700
2025	$13,551.00 (+0.67%)	$142,125 (-10.93%) Land $59,644 Building $82,481	$2,274,000 (-4.51%) Land $954,300 Building $1,319,700
2023	$13,461.00 (+13.53%)	$159,561 (+24.96%) Land $65,084 Building $94,477	$2,381,500 (+29.63%) Land $971,400 Building $1,410,100
2022	$11,857.00	$127,686 Land $52,146 Building $75,540	$1,837,200 Land $750,300 Building $1,086,900

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 58 individual policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	63 units insured incl. 5 condo units
Nearby Flood Claims	14 (2013–2015)
Claims Outside the SFHA	6 of 14
Most Recent Claim	May 2015 · Severe Storms, Tornadoes, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 13 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	Moderate above 64% of the US · above 54% of Colorado
Wildfire Likelihood	0.2% annual chance
Exposure	Indirect within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

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 460 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Ayva Networks Fixed Wireless	2,500 / 2,500
Xfinity Cable	2,000 / 250
LiveWireNet Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T, CenturyLink.

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Union Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures