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

Boulder County property record for 605 S 45th St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	5 bd · 2.25 ba · 2,110 sqft · built 1958
Lot Size	0.16 acres (6,977 sqft)
Owner	Individual Name on Record
Last Sale	$329,900 (Oct 2001)
Tax Bill	$5,136 (2025)
Deeds & Mortgages	Jun 2021 Line of Credit Jan 2017 Line of Credit + 1 more
Flood Zone	Zone X (minimal risk)
APN	`1577-08-1-03-030`

Property Details

APN / Parcel Number

Primary APN	`1577-08-1-03-030`
Alternative APNs	`R0011328` `0011328`

Interior

Bedrooms	5 Beds
Full Baths	2.25 Baths
Half Baths	2 Half Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,110 sqft Living Area
Gross Area	2,489 sqft
1st Floor Area	1,118 sqft
Basement Area	1,119 sqft
Finished Basement	992 sqft
Unfinished Basement	127 sqft
Interior Walls	Plaster

Exterior

Year Built	Built 1958
Effective Year Built	Effective 1975
Architectural Style	Ranch
Exterior Material	Combination
Construction Type	Masonry / Concrete Block
Lot Area	6,977 sqft (0.16 acres)
Garage Type	Attached
Garage Area	252 sqft
Parking Spaces	1 Parking Space
Porch	Porch
Porch Area	256 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0011328
Street Address	605 S 45TH ST
City	BOULDER
State	CO
Zip	80305-6051
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 30 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	30
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	605 S 45TH ST, BOULDER, CO 80305-6051
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jun 17, 2021	Deed of Trust, Mortgage · Line of Credit ELEVATE FCU
Jan 12, 2017	Deed of Trust, Mortgage · Line of Credit ELEVATIONS CU
Aug 4, 2020	Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 2, 2001 · Amount on Record
Deed Sale	Oct 2, 2001 · Amount on Record
Prior Sale	Nov 17, 1993 · Amount on Record
Deed Document Number	20012202860
Record Updated	Oct 29, 2026

June 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	605 S 45TH ST, BOULDER, CO 80305-6051
Transaction Type	Mortgage
Record Updated	Jul 1, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003893642
Date	Jun 17, 2021
Instrument	3893642

Lender

Name	ELEVATE FCU
Type	Credit Union
Address	COLORADO SPRINGS, CO 80901

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Jun 16, 2041

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	605 S 45TH ST, BOULDER, CO 80305-6051
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003568610
Date	Jan 12, 2017
Instrument	3568610

Lender

Name	ELEVATIONS CU
Type	Credit Union
Address	BOULDER, CO 80301

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	605 S 45TH ST, BOULDER, CO 80305-6051
Document Number	0003805587
Instrument Date	Aug 4, 2020
Transaction Type	Mortgage
Record Updated	Sep 24, 2020
Title Company	WFG

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	605 S 45TH ST BOULDER CO 803056051, BOULDER, CO 80305-6051

Mortgage

Document Number	0003805587
Date	Aug 10, 2020
Instrument	3805587

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	180 Months
Due	Aug 9, 2035

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		$53,849 (-0.04%) Land $27,186 Building $26,663	$861,900 (-) Land $469,800 Building $392,100
2025	$5,136.00 (+1.4%)	$53,869 (-13.58%) Land $29,363 Building $24,506	$861,900 (-7.36%) Land $469,800 Building $392,100
2023	$5,065.00 (+11.2%)	$62,337 (+27.06%) Land $34,699 Building $27,638	$930,400 (+31.8%) Land $517,900 Building $412,500
2022	$4,555.00	$49,060 Land $25,833 Building $23,227	$705,900 Land $371,700 Building $334,200

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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