345 S 41st St, Boulder, CO 80305 Property Records

Boulder County property record for 345 S 41st St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.25 ba · 2,250 sqft · built 1956
Lot Size	0.169 acres (7,369 sqft)
Owner	Individual Name on File
Last Sale	$650,000 (Jan 2021)
Tax Bill	$4,841 (2025)
Deeds & Mortgages	Jan 2021 Sale & Mortgage Jul 2019 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`1577-05-4-23-031`

Property Details

APN / Parcel Number

Primary APN	`1577-05-4-23-031`
Alternative APNs	`R0009545` `0009545`

Interior

Bedrooms	4 Beds
Full Baths	2.25 Baths
Half Baths	2 Half Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	2,250 sqft Living Area
Gross Area	2,524 sqft
1st Floor Area	1,152 sqft
Basement Area	1,152 sqft
Finished Basement	1,098 sqft
Unfinished Basement	54 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1956
Effective Year Built	Effective 1980
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Lot Area	7,369 sqft (0.169 acres)
Garage Type	Attached
Garage Area	220 sqft
Parking Spaces	1 Parking Space
Patio Area	189 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0009545
Street Address	345 S 41ST ST
City	BOULDER
State	CO
Zip	80305-5459
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 31 BLK 6 MARTIN ACRES 2
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	MARTIN ACRES 2 - BO
Legal Block	6
Legal Lot Number	31
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3007
Census Tract	12507

Owner

345 S 41st St is owned and occupied by an individual who bought it in January 2021.

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

Owner of Record	Individual Name on File
Mailing Address	345 S 41ST ST, BOULDER, CO 80305-5459
Occupancy	Owner Occupied
Owner Type	Individual

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
Jan 19, 2021	Personal Representative Deed, Transfer · Conventional Mortgage COMMERCE HOME MORTGAGE LLC
Jul 30, 2019	Deed of Trust, Mortgage · Line of Credit ELEVATIONS CU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 19, 2021 · Amount on File
Deed Sale	Jan 19, 2021 · Amount on File
Deed Document Number	20213851695
Record Updated	Oct 29, 2026

January 2021: Personal Representative Deed, Transfer

Document Type	Personal Representative Deed
Jurisdiction	BOULDER CO
Recording Date	Jan 19, 2021
Property Address	345 S 41ST ST, BOULDER, CO 80305-5459
Document Number	0003851695
Instrument Date	Jan 15, 2021
Instrument	3851695
Transaction Type	Transfer
Record Updated	Mar 31, 2022

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$65.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	345 SOUTH 4 L 5 STREET, BOULDER, CO 80305

Mortgage

Document Number	0003851696
Date	Jan 19, 2021
Instrument	3851696

Lender

Name	COMMERCE HOME MORTGAGE LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Feb 1, 2051

July 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	345 S 41ST ST, BOULDER, CO 80305-5459
Document Number	0003728150
Instrument Date	Jul 30, 2019
Transaction Type	Mortgage
Record Updated	Aug 14, 2019
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	345 S 41ST ST BOULDER CO 803055459, BOULDER, CO 80305-5459

Mortgage

Document Number	0003728150
Date	Aug 5, 2019
Instrument	3728150

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	240 Months
Due	Aug 4, 2039

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

The 2025 property tax bill for 345 S 41st St was $4,841.

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		$55,481 (+9.27%) Land $33,755 Building $21,726	$885,900 (+9.05%) Land $566,400 Building $319,500
2025	$4,841.00	$50,775 Land $35,400 Building $15,375	$812,400 Land $566,400 Building $246,000
2023	$4,679.00 (+11.06%)	$57,868 (+27.55%) Land $41,480 Building $16,388	$863,700 (+32.31%) Land $619,100 Building $244,600
2022	$4,213.00	$45,370 Land $30,768 Building $14,602	$652,800 Land $442,700 Building $210,100

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

FEMA maps place 345 S 41st St in Zone X, an area of minimal flood risk, though there have been 7 flood claims nearby since 1979.

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
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 345 S 41st 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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