1520 Oak Ave, Boulder, CO 80304 Property Records

Boulder County property record for 1520 Oak Ave, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 2,305 sqft · built 1985
Lot Size	0.146 acres (6,372 sqft)
Owner	Individual Name on Record
Last Sale	$530,000 (Jul 2002)
Tax Bill	$7,706 (2025)
Deeds & Mortgages	Aug 2023 Line of Credit Apr 2023 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`1463-18-3-30-006`

Property Details

APN / Parcel Number

Primary APN	`1463-18-3-30-006`
Alternative APNs	`R0070892` `0070892`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,305 sqft Living Area
Gross Area	2,746 sqft
1st Floor Area	661 sqft
Upper Floors Area	1,068 sqft
Basement Area	576 sqft
Finished Basement	576 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1985
Effective Year Built	Effective 1985
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	6,372 sqft (0.146 acres)
Garage Type	Attached
Garage Area	441 sqft
Parking Spaces	2 Parking Spaces
Deck Area	153 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0070892
Street Address	1520 OAK AVE
City	BOULDER
State	CO
Zip	80304-1254
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 6 ANOTHER SUB & 1/6 INT IN OUTLOT A
Legal Range	70
Legal Township	1N
Legal Section	18
Legal Subdivision	ANOTHER - BO
Legal Block	3
Legal Lot Number	6
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3005
Census Tract	12105

Owner

Source: Boulder County records, as of September 18, 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 Record
Mailing Address	1520 OAK AVE, BOULDER, CO 80304-1254
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Aug 28, 2023	Deed of Trust, Mortgage · Line of Credit FLATIRONS BANK
Apr 27, 2023	Deed of Trust, Mortgage · Commercial Mortgage FLATIRONS BANK
Sep 30, 2021	Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Dec 30, 2019	Deed of Trust, Mortgage · Line of Credit INDEPENDENT BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jul 2, 2002 · Amount on Record
Deed Sale	Jul 2, 2002 · Amount on Record
Prior Sale	Jun 15, 2000 · Amount on Record
Deed Document Number	20022304154
Last Transfer Date	Jul 23, 2015
Transfer Doc	0003463447
Record Updated	Oct 29, 2026

August 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	1520 OAK AVE, BOULDER, CO 80304-1254
Transaction Type	Mortgage
Record Updated	Sep 27, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1520 OAK AVE, BOULDER, CO 80304-1254

Mortgage

Document Number	0004019604
Date	Aug 28, 2023
Instrument	4019604

Lender

Name	FLATIRONS BANK
Type	Bank
Address	BOULDER, CO 80302

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	11 Months
Due	Jul 6, 2024

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

April 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	1520 OAK AVE, BOULDER, CO 80304-1254
Transaction Type	Mortgage
Record Updated	May 4, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1520 OAK AVE, BOULDER, CO 80304-1254

Mortgage

Document Number	0004005317
Date	Apr 27, 2023
Instrument	4005317

Lender

Name	FLATIRONS BANK
Type	Bank
Address	BOULDER, CO 80302

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded
Term	60 Months
Due	Apr 27, 2028

September 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	1520 OAK AVE, BOULDER, CO 80304-1254
Transaction Type	Mortgage
Record Updated	Oct 20, 2021
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003917724
Date	Sep 30, 2021
Instrument	3917724

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company
Address	PONTIAC, MI 48341

Agreement

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

December 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	1520 OAK AVE, BOULDER, CO 80304-1254
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003757521
Date	Dec 30, 2019
Instrument	3757521

Lender

Name	INDEPENDENT BANK
Type	Bank
Address	BOULDER, CO 80302

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of September 18, 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		$83,171 (+2.91%) Land $41,555 Building $41,616	$1,293,100 (-) Land $681,100 Building $612,000
2025	$7,706.00 (+1.35%)	$80,819 (-11.89%) Land $42,569 Building $38,250	$1,293,100 (-5.55%) Land $681,100 Building $612,000
2023	$7,603.00 (+14.28%)	$91,730 (+28.03%) Land $44,006 Building $47,724	$1,369,100 (+32.81%) Land $656,800 Building $712,300
2022	$6,653.00	$71,648 Land $35,501 Building $36,147	$1,030,900 Land $510,800 Building $520,100

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	0.03% 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 482 locations within half a mile, as of December 31, 2025

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

May also be available: T-Mobile, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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