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

Boulder County property record for 405 S 39th St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.25 ba · 2,255 sqft · built 1956
Lot Size	0.157 acres (6,853 sqft)
Owner	Individual Name on Record
Last Sale	$470,000 (Sep 2014)
Tax Bill	$5,349 (2025)
Deeds & Mortgages	Nov 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1577-05-4-20-019`

Property Details

APN / Parcel Number

Primary APN	`1577-05-4-20-019`
Alternative APNs	`R0011322` `0011322`

Interior

Bedrooms	3 Beds
Full Baths	2.25 Baths
Half Baths	2 Half Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,255 sqft Living Area
Gross Area	2,525 sqft
1st Floor Area	1,152 sqft
Basement Area	1,153 sqft
Finished Basement	1,103 sqft
Unfinished Basement	50 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1956
Effective Year Built	Effective 1985
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	6,853 sqft (0.157 acres)
Garage Type	Attached
Garage Area	220 sqft
Parking Spaces	1 Parking Space
Porch	Porch
Porch Area	364 sqft

Utilities, Heating & Cooling

Cooling System	Evaporative
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0011322
Street Address	405 S 39TH ST
City	BOULDER
State	CO
Zip	80305-5413
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 19 BLK 3 MARTIN ACRES 2
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	MARTIN ACRES 2 - BO
Legal Block	3
Legal Lot Number	19
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3002
Census Tract	12507

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	405 S 39TH ST, BOULDER, CO 80305-5413
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 19, 2014 · Amount on Record
Deed Sale	Sep 19, 2014 · Amount on Record
Prior Sale	Oct 6, 2003
Deed Document Number	20143403527
Prior Transfer Date	Sep 5, 2003
Prior Transfer Doc	0002512051
Record Updated	Oct 29, 2026

November 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	405 S 39TH ST, BOULDER, CO 80305-5413
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003831833
Date	Nov 10, 2020
Instrument	3831833

Lender

Name	ELEVATIONS CU
Type	Credit Union
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Dec 1, 2050

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		$56,284 (+0.32%) Land $32,382 Building $23,902	$897,700 (-) Land $546,200 Building $351,500
2025	$5,349.00 (+6.92%)	$56,107 (-8.95%) Land $34,138 Building $21,969	$897,700 (-2.39%) Land $546,200 Building $351,500
2023	$5,003.00 (+11.52%)	$61,620 (+27.53%) Land $39,999 Building $21,621	$919,700 (+32.29%) Land $597,000 Building $322,700
2022	$4,486.00	$48,317 Land $29,670 Building $18,647	$695,200 Land $426,900 Building $268,300

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
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

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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