275 S 39th St, Boulder, CO 80305 Property Records

Boulder County property record for 275 S 39th St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.25 ba · 2,304 sqft · built 1956
Lot Size	0.174 acres (7,559 sqft)
Owner	Trust Name on File
Last Sale	$660,000 (Jun 2017)
Tax Bill	$4,995 (2025)
Deeds & Mortgages	Aug 2023 Transfer Feb 2023 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`1577-05-4-21-016`

Property Details

APN / Parcel Number

Primary APN	`1577-05-4-21-016`
Alternative APNs	`R0012934` `0012934`

Interior

Bedrooms	3 Beds
Full Baths	2.25 Baths
Half Baths	2 Half Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	2,304 sqft Living Area
Gross Area	2,524 sqft
1st Floor Area	1,152 sqft
Basement Area	1,152 sqft
Finished Basement	1,152 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1956
Effective Year Built	Effective 1966
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	7,559 sqft (0.174 acres)
Garage Type	Attached
Garage Area	220 sqft
Parking Spaces	3 Parking Spaces
Porch	Porch
Porch Area	312 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0012934
Street Address	275 S 39TH ST
City	BOULDER
State	CO
Zip	80305-5409
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 16 BLK 4 MARTIN ACRES 2
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	MARTIN ACRES 2 - BO
Legal Block	4
Legal Lot Number	16
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3005
Census Tract	12507

Owner

275 S 39th St is held in a trust since February 2023.

Source: Boulder County records, as of September 18, 2026

Owner of Record	Trust Name on File
Mailing Address	275 S 39TH ST, BOULDER, CO 80305-5409
Owner Type	Company
Vesting	Trust

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Aug 23, 2023	Intrafamily Transfer, Transfer
Feb 8, 2023	Intrafamily Transfer, Transfer · Conventional Mortgage WELLS FARGO BANK NA
Jun 21, 2017	Warranty Deed, Transfer · Conventional Mortgage CALIBER HM LOANS

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 21, 2017 · Amount on File
Deed Sale	Jun 21, 2017 · Amount on File
Prior Sale	Feb 16, 1978 · Amount on File
Deed Document Number	20173599060
Last Transfer Date	Feb 3, 2023
Transfer Doc	0003996862
Record Updated	Oct 29, 2026

August 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	BOULDER CO
Recording Date	Aug 23, 2023
Property Address	275 S 39TH ST, BOULDER, CO 80305-5409
Document Number	0004019321
Instrument Date	Aug 2, 2023
Instrument	4019321
Transaction Type	Transfer
Record Updated	Sep 22, 2023

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Living Trust
Address	275 S 39TH ST, BOULDER, CO 80305-5409

February 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	BOULDER CO
Recording Date	Feb 8, 2023
Property Address	275 S 39TH ST, BOULDER, CO 80305-5409
Document Number	0003996862
Instrument Date	Feb 3, 2023
Instrument	3996862
Transaction Type	Transfer
Record Updated	Feb 14, 2023
Title Company	LAND TITLE GUARANTEE

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	275 S 39TH ST, BOULDER, CO 80305-5409
Investor	Possibly a Property Investor

Mortgage

Document Number	0003996863
Date	Feb 8, 2023
Instrument	3996863

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2053

June 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jun 21, 2017
Property Address	275 S 39TH ST, BOULDER, CO 80305-5409
Document Number	0003599060
Instrument Date	Jun 20, 2017
Instrument	3599060
Transaction Type	Transfer
Record Updated	Jun 28, 2017
Title Company	NORTH AMERICAN TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$66.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	275 S 39TH ST BOULDER CO 803055409, BOULDER, CO 80305-5409

Mortgage

Document Number	3599061
Date	Jun 21, 2017
Instrument	3599061

Lender

Name	CALIBER HM LOANS
Type	Funding / Finance Company
Address	IRVING, TX 75063

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jun 20, 2047

Tax Assessment & Valuation

The 2025 property tax bill for 275 S 39th St was $4,995.

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		$52,244 (-0.29%) Land $34,244 Building $18,000	$838,300 (-) Land $573,600 Building $264,700
2025	$4,995.00	$52,394 Land $35,850 Building $16,544	$838,300 Land $573,600 Building $264,700
2023	$4,886.00 (+11.5%)	$60,267 (+27.71%) Land $42,009 Building $18,258	$899,500 (+32.47%) Land $627,000 Building $272,500
2022	$4,382.00	$47,191 Land $31,164 Building $16,027	$679,000 Land $448,400 Building $230,600

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

FEMA maps place 275 S 39th St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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	6 in force
Nearby Flood Claims	7 (1979–2022)
Claims Outside the SFHA	5 of 7
Most Recent Claim	Jul 2022 · rainfall accumulation
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 5 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

Wildfire risk around 275 S 39th St is low, with a 0.01% annual chance of 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 678 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Ayva Networks Fixed Wireless	2,500 / 2,500
CenturyLink Fiber · DSL in parts of the area	2,000 / 1,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
LiveWireNet Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T.

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