3486 16th Cir, Boulder, CO 80304 Property Records

Boulder County property record for 3486 16th Cir, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	5 bd · 3.5 ba · 3,436 sqft · built 1977
Lot Size	0.177 acres (7,702 sqft)
Owner	2 Individual Names on Record
Last Sale	$130,000 (Apr 1979)
Tax Bill	$8,114 (2025)
Deeds & Mortgages	Jan 2026 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`1463-19-2-30-003`

Property Details

APN / Parcel Number

Primary APN	`1463-19-2-30-003`
Alternative APNs	`R0071720` `0071720`

Interior

Bedrooms	5 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	3,436 sqft Living Area
Gross Area	3,942 sqft
1st Floor Area	1,256 sqft
Upper Floors Area	924 sqft
Basement Area	1,256 sqft
Finished Basement	1,256 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1977
Effective Year Built	Effective 1977
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Lot Area	7,702 sqft (0.177 acres)
Garage Type	Attached
Garage Area	506 sqft
Parking Spaces	2 Parking Spaces
Deck Area	587 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0071720
Street Address	3486 16TH CIR
City	BOULDER
State	CO
Zip	80304-1804
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 3 SIXTEENTH STREET SUB
Legal Range	70
Legal Township	1N
Legal Section	19
Legal Subdivision	SIXTEENTH STREET - BO
Legal Block	4
Legal Lot Number	3
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	4
Census Block	4010
Census Tract	12105

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	3205 W 126TH AVE, BROOMFIELD, CO 80020-5835
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 25, 1979 · Amount on Record
Deed Sale	Apr 25, 1979 · Amount on Record
Prior Sale	Oct 7, 1977 · Amount on Record
Deed Document Number	1979334007
Last Transfer Date	Oct 21, 2024
Transfer Doc	0004064489
Record Updated	Sep 20, 2026

January 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	3486 16TH CIR, BOULDER, CO 80304-1804
Transaction Type	Mortgage
Record Updated	Feb 6, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3486 16TH CIR, BOULDER, CO 80304-1804

Mortgage

Document Number	0004117447
Date	Jan 22, 2026
Instrument	4117447

Lender

Name	ZB NA
Type	Bank
Address	BOULDER, CO 80304

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Jan 15, 2056

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

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		$99,388 (+8.8%) Land $39,664 Building $59,724	$1,461,600 (-) Land $583,300 Building $878,300
2025	$8,114.00 (+0.43%)	$91,350 (-12.11%) Land $36,456 Building $54,894	$1,461,600 (-5.78%) Land $583,300 Building $878,300
2023	$8,079.00 (+20.19%)	$103,937 (+31%) Land $38,076 Building $65,861	$1,551,300 (+35.89%) Land $568,300 Building $983,000
2022	$6,722.00	$79,341 Land $30,455 Building $48,886	$1,141,600 Land $438,200 Building $703,400

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	5 in force
Nearby Flood Claims	2 (1990–1991)
Claims Outside the SFHA	2 of 2
Most Recent Claim	May 1991 · rainfall accumulation

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	0.01% annual chance
Exposure	None beyond 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 483 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
Verizon Fixed Wireless	300 / 20
LiveWireNet Fixed Wireless	250 / 100
CenturyLink DSL · Fiber in parts of the area	140 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20