545 S 40th St, Boulder, CO 80305 Property Records

Boulder County property record for 545 S 40th St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,800 sqft · built 1960
Lot Size	0.16 acres (6,956 sqft)
Owner	2 Individual Names on File
Last Sale	$750,000 (Mar 2020)
Tax Bill	$5,804 (2025)
Deeds & Mortgages	Apr 2017 Line of Credit Sep 2020 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`1577-08-1-08-005`

Property Details

APN / Parcel Number

Primary APN	`1577-08-1-08-005`
Alternative APNs	`R0014284` `0014284`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	2 Half Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	2,800 sqft Living Area
1st Floor Area	1,400 sqft
Basement Area	1,400 sqft
Finished Basement	1,400 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1960
Effective Year Built	Effective 1985
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	6,956 sqft (0.16 acres)
Garage Type	Carport
Garage Area	312 sqft
Carport	Carport
Carport Area	312 sqft
Parking Spaces	1 Parking Space
Deck Area	604 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0014284
Street Address	545 S 40TH ST
City	BOULDER
State	CO
Zip	80305-5902
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 5 BLK 8 MARTIN ACRES 3
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	MARTIN ACRES 3 - BO
Legal Block	8
Legal Lot Number	5
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3006
Census Tract	12508

Owner

545 S 40th St is owned and occupied by two individuals who bought it in March 2020.

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

Owner of Record	2 Individual Names on File
Mailing Address	545 S 40TH ST, BOULDER, CO 80305-5902
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
Apr 19, 2017	Deed of Trust, Mortgage · Line of Credit ELEVATIONS CU
Sep 1, 2020	Deed of Trust, Mortgage · Conventional Mortgage ELEVATE FCU
Mar 12, 2020	Warranty Deed, Transfer ELEVATIONS CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 12, 2020 · Amount on File
Deed Sale	Mar 12, 2020 · Amount on File
Prior Sale	Feb 12, 2007 · Amount on File
Deed Document Number	20203771423
Record Updated	Oct 29, 2026

April 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	545 S 40TH ST, BOULDER, CO 80305-5902
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003587558
Date	Apr 19, 2017
Instrument	3587558

Lender

Name	ELEVATIONS CU
Type	Credit Union
Address	BOULDER, CO 80301

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	545 S 40TH ST, BOULDER, CO 80305-5902
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	LAND TITLE GUARANTEE CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003811739
Date	Sep 1, 2020
Instrument	3811739

Lender

Name	ELEVATE FCU
Type	Credit Union
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Sep 1, 2050

March 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Mar 12, 2020
Property Address	545 S 40TH ST, BOULDER, CO 80305-5902
Document Number	0003771423
Instrument Date	Mar 11, 2020
Instrument	3771423
Transaction Type	Transfer
Record Updated	Jun 8, 2020
Title Company	LAND TITLE GUARANTEE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$75.00
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	545 S 40TH ST BOULDER CO 803055902, BOULDER, CO 80305-5902

Mortgage

Document Number	3771424
Date	Mar 12, 2020
Instrument	3771424

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Amount	Amount on Record
Term	360 Months
Due	Mar 11, 2050

Interest

Rate Type	Adjustable Rate
Rate	3.25%

Tax Assessment & Valuation

The 2025 property tax bill for 545 S 40th St was $5,804.

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		$61,472 (+0.98%) Land $27,139 Building $34,333	$974,000 (-) Land $469,100 Building $504,900
2025	$5,804.00	$60,875 Land $29,319 Building $31,556	$974,000 Land $469,100 Building $504,900
2023	$5,714.00 (+15.9%)	$69,861 (+31.59%) Land $34,646 Building $35,215	$1,042,700 (+36.5%) Land $517,100 Building $525,600
2022	$4,930.00	$53,091 Land $25,791 Building $27,300	$763,900 Land $371,100 Building $392,800

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 545 S 40th St in Zone X, an area of minimal flood risk.

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	5 in force

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 545 S 40th 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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