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

Boulder County property record for 280 S 40th St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.25 ba · 2,304 sqft · built 1956
Lot Size	0.167 acres (7,293 sqft)
Owner	Company Name on Record
Last Sale	$349,000 (Jun 2002)
Tax Bill	$5,322 (2025)
Deeds & Mortgages	Jul 2020 Mortgage Aug 2022 Line of Credit + 1 more
Flood Zone	Zone X (minimal risk)
APN	`1577-05-4-23-005`

Property Details

APN / Parcel Number

Primary APN	`1577-05-4-23-005`
Alternative APNs	`R0013019` `0013019`

Interior

Bedrooms	3 Beds
Full Baths	2.25 Baths
Half Baths	2 Half Baths
Total Rooms	8 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 1980
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	7,293 sqft (0.167 acres)
Garage Type	Attached
Garage Area	220 sqft
Parking Spaces	1 Parking Space
Deck Area	154 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0013019
Street Address	280 S 40TH ST
City	BOULDER
State	CO
Zip	80305-5416
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 5 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	5
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3007
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	Company Name on Record
Mailing Address	280 S 40TH ST, BOULDER, CO 80305-5416
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Date	Document
Jul 13, 2020	Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Aug 16, 2022	Intrafamily Transfer, Transfer · Line of Credit ELEVATIONS CU
Nov 6, 2017	Deed of Trust, Mortgage · Line of Credit ELEVATIONS CU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 19, 2002 · Amount on Record
Deed Sale	Jun 19, 2002 · Amount on Record
Prior Sale	Apr 12, 1996 · Amount on Record
Deed Document Number	20022299236
Last Transfer Date	Jun 14, 2022
Transfer Doc	0003976754
Record Updated	Oct 29, 2026

July 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	280 S 40TH ST, BOULDER, CO 80305-5416
Transaction Type	Mortgage
Record Updated	Oct 21, 2022
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003797661
Date	Jul 13, 2020
Instrument	3797661

Lender

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

Agreement

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

August 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	BOULDER CO
Recording Date	Aug 16, 2022
Property Address	280 S 40TH ST, BOULDER, CO 80305-5416
Document Number	0003976754
Instrument Date	Jun 14, 2022
Instrument	3976754
Transaction Type	Transfer
Record Updated	Aug 30, 2022

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
Address	280 S 40TH ST, BOULDER, CO 80305-5416

Mortgage

Document Number	0003977114
Date	Aug 16, 2022
Instrument	3977114

Lender

Name	ELEVATIONS CU
Type	Credit Union

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

November 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	280 S 40TH ST, BOULDER, CO 80305-5416
Document Number	0003625101
Instrument Date	Nov 6, 2017
Transaction Type	Mortgage
Record Updated	Nov 20, 2017

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	280 S 40TH ST BOULDER CO 803055416, BOULDER, CO 80305-5416

Mortgage

Document Number	0003625101
Date	Nov 13, 2017
Instrument	3625101

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Nov 12, 2037

Interest

Rate Type	Adjustable Rate

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		$55,053 (+0.14%) Land $33,551 Building $21,502	$879,600 (-) Land $563,400 Building $316,200
2025	$5,322.00 (+2.21%)	$54,976 (-12.9%) Land $35,213 Building $19,763	$879,600 (-6.63%) Land $563,400 Building $316,200
2023	$5,207.00 (+12.32%)	$63,120 (+28.51%) Land $41,265 Building $21,855	$942,100 (+33.31%) Land $615,900 Building $326,200
2022	$4,636.00	$49,116 Land $30,608 Building $18,508	$706,700 Land $440,400 Building $266,300

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
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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