705 S 43rd St, Boulder, CO 80305 Property Records

Boulder County property record for 705 S 43rd St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.25 ba · 2,563 sqft · built 1960
Lot Size	0.165 acres (7,177 sqft)
Owner	2 Individual Names on File
Last Sale	$750,000 (Jul 2019)
Tax Bill	$6,227 (2025)
Deeds & Mortgages	Nov 2020 Mortgage Jul 2019 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`1577-08-1-05-024`

Property Details

APN / Parcel Number

Primary APN	`1577-08-1-05-024`
Alternative APNs	`R0013916` `0013916`

Interior

Bedrooms	4 Beds
Full Baths	2.25 Baths
Half Baths	2 Half Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	2,563 sqft Living Area
Gross Area	2,673 sqft
1st Floor Area	1,567 sqft
Basement Area	1,106 sqft
Finished Basement	996 sqft
Unfinished Basement	110 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1960
Effective Year Built	Effective 1990
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	7,177 sqft (0.165 acres)
Garage Type	Carport
Garage Area	264 sqft
Carport	Carport
Carport Area	264 sqft
Parking Spaces	1 Parking Space
Porch	Porch
Porch Area	489 sqft
Patio Area	369 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0013916
Street Address	705 S 43RD ST
City	BOULDER
State	CO
Zip	80305-6013
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 24 BLK 5 MARTIN ACRES 3
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	MARTIN ACRES 3 - BO
Legal Block	5
Legal Lot Number	24
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3003
Census Tract	12508

Owner

705 S 43rd St is owned by two individuals who bought it in July 2019.

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

Owner of Record	2 Individual Names on File
Mailing Address	PO BOX 3276, BOULDER, CO 80307-3276
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
Nov 12, 2020	Deed of Trust, Mortgage · Conventional Mortgage LENDUS LLC
Jul 26, 2019	Warranty Deed, Transfer · Conventional Mortgage LENDUS LLC
Apr 5, 2019	Quit Claim Deed, Transfer NOT AVAILABLE
Mar 14, 2017	Warranty Deed, Transfer STEWART TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 26, 2019 · Amount on File
Deed Sale	Jul 26, 2019 · Amount on File
Prior Sale	Mar 14, 2017 · Amount on File
Deed Document Number	20193726317
Prior Transfer Date	Feb 28, 2001
Prior Transfer Doc	0002124759
Record Updated	Oct 29, 2026

November 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	705 S 43RD ST, BOULDER, CO 80305-6013
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FITCO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003832304
Date	Nov 12, 2020
Instrument	3832304

Lender

Name	LENDUS LLC
Type	Mortgage Company
Address	ALAMO, CA 94507

Agreement

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

July 2019: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jul 26, 2019
Property Address	705 S 43RD ST, BOULDER, CO 80305-6013
Document Number	0003726317
Instrument Date	Jul 24, 2019
Instrument	3726317
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	LAND TITLE GUARANTEE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$75.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	PO BOX 3276, BOULDER, CO 80307-3276

Mortgage

Document Number	0003726318
Date	Jul 26, 2019
Instrument	3726318

Lender

Name	LENDUS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Aug 1, 2049

April 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOULDER CO
Recording Date	Apr 5, 2019
Property Address	705 S 43RD ST, BOULDER, CO 80305-6013
Document Number	0003705859
Instrument Date	Apr 4, 2019
Instrument	3705859
Transaction Type	Transfer
Record Updated	Apr 11, 2019
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2318 SCR #9 LOVELAND CO 80537, 9, LOVELAND, CO 80537

March 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Mar 14, 2017
Property Address	705 S 43RD ST, BOULDER, CO 80305-6013
Document Number	0003580046
Instrument Date	Mar 10, 2017
Instrument	3580046
Transaction Type	Transfer
Record Updated	Mar 28, 2017
Title Company	STEWART TITLE

Transaction

Amount	Amount on Record
Tax	$72.50
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	750 S 43RD ST BOULDER CO 803056014, BOULDER, CO 80305-6014

Tax Assessment & Valuation

The 2025 property tax bill for 705 S 43rd St was $6,227.

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		$66,300 (+1.51%) Land $27,642 Building $38,658	$1,045,000 (-) Land $476,500 Building $568,500
2025	$6,227.00	$65,312 Land $29,781 Building $35,531	$1,045,000 Land $476,500 Building $568,500
2023	$5,612.00 (+12.83%)	$68,675 (+28.21%) Land $32,113 Building $36,562	$1,025,000 (+33%) Land $479,300 Building $545,700
2022	$4,974.00	$53,564 Land $26,202 Building $27,362	$770,700 Land $377,000 Building $393,700

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 705 S 43rd 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 705 S 43rd St is low, with a 0.03% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 67% of the US · lower than 84% of Colorado
Wildfire Likelihood	0.03% 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 604 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	2,000 / 1,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
LiveWireNet Fixed Wireless	250 / 100

May also be available: AT&T, T-Mobile.

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