725 S 45th St, Boulder, CO 80305 Property Records

Boulder County property record for 725 S 45th St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.25 ba · 1,768 sqft · built 1959
Lot Size	0.162 acres (7,050 sqft)
Owner	Individual Name on Record
Last Sale	$995,000 (Sep 2022)
Tax Bill	$5,669 (2025)
Deeds & Mortgages	Sep 2022 Sale & Mortgage Apr 2017 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`1577-08-1-03-022`

Property Details

APN / Parcel Number

Primary APN	`1577-08-1-03-022`
Alternative APNs	`R0013294` `0013294`

Interior

Bedrooms	3 Beds
Full Baths	2.25 Baths
Half Baths	2 Half Baths
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,768 sqft Living Area
Gross Area	2,270 sqft
1st Floor Area	1,014 sqft
Basement Area	1,014 sqft
Finished Basement	754 sqft
Unfinished Basement	260 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1959
Effective Year Built	Effective 2000
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	7,050 sqft (0.162 acres)
Garage Type	Attached
Garage Area	242 sqft
Parking Spaces	1 Parking Space
Porch	Porch
Porch Area	216 sqft
Patio Area	216 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0013294
Street Address	725 S 45TH ST
City	BOULDER
State	CO
Zip	80305-6053
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 22 BLK 3 MARTIN ACRES 3
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	MARTIN ACRES 3 - BO
Legal Block	3
Legal Lot Number	22
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3001
Census Tract	12508

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	725 S 45TH ST, BOULDER, CO 80305-6053
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Sep 1, 2022	Special Warranty Deed, Transfer · Conventional Mortgage JPMORGAN CHASE BANK NA
Apr 24, 2017	Deed of Trust, Mortgage · Line of Credit ELEVATIONS CU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 1, 2022 · Amount on Record
Deed Sale	Sep 1, 2022 · Amount on Record
Prior Sale	Sep 2, 1981 · Amount on Record
Deed Document Number	20223979683
Prior Transfer Date	Aug 23, 2010
Prior Transfer Doc	0003095540
Record Updated	Oct 29, 2026

September 2022: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Sep 1, 2022
Property Address	725 S 45TH ST, BOULDER, CO 80305-6053
Document Number	0003979683
Instrument Date	Aug 31, 2022
Instrument	3979683
Transaction Type	Transfer
Record Updated	Sep 19, 2022
Title Company	LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$99.50
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	725 S 45TH ST, 725, BOULDER, CO 80305-6053

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	725 S 45TH ST, BOULDER, CO 80305-6053

Mortgage

Document Number	0003979684
Date	Sep 1, 2022
Instrument	3979684

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Sep 1, 2052

April 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	725 S 45TH ST, BOULDER, CO 80305-6053
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003588346
Date	Apr 24, 2017
Instrument	3588346

Lender

Name	ELEVATIONS CU
Type	Credit Union
Address	BOULDER, CO 80301

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Apr 23, 2037

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

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		$59,928 (+0.79%) Land $27,356 Building $32,572	$951,300 (-) Land $472,300 Building $479,000
2025	$5,669.00 (+3.09%)	$59,457 (-11.74%) Land $29,519 Building $29,938	$951,300 (-5.38%) Land $472,300 Building $479,000
2023	$5,499.00 (+15.19%)	$67,362 (+31.01%) Land $34,880 Building $32,482	$1,005,400 (+35.9%) Land $520,600 Building $484,800
2022	$4,774.00	$51,416 Land $25,965 Building $25,451	$739,800 Land $373,600 Building $366,200

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	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

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	0.04% annual chance
Exposure	Indirect within 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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