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

Boulder County property record for 660 S 45th St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	3 bd · 1.5 ba · 1,422 sqft · built 1958
Lot Size	0.171 acres (7,437 sqft)
Owner	Individual Name on Record
Last Sale	$82,000 (Jun 1984)
Tax Bill	$4,788 (2025)
Deeds & Mortgages	Dec 2021 Mortgage Jul 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1577-08-1-02-012`

Property Details

APN / Parcel Number

Primary APN	`1577-08-1-02-012`
Alternative APNs	`R0013806` `0013806`

Interior

Bedrooms	3 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,422 sqft Living Area
Gross Area	2,478 sqft
1st Floor Area	1,107 sqft
Basement Area	1,107 sqft
Finished Basement	315 sqft
Unfinished Basement	792 sqft
Interior Walls	Plaster

Exterior

Year Built	Built 1958
Effective Year Built	Effective 1958
Architectural Style	Ranch
Exterior Material	Combination
Construction Type	Masonry / Concrete Block
Lot Area	7,437 sqft (0.171 acres)
Garage Type	Attached
Garage Area	264 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0013806
Street Address	660 S 45TH ST
City	BOULDER
State	CO
Zip	80305-6052
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 12 BLK 2 MARTIN ACRES 3
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	MARTIN ACRES 3 - BO
Legal Block	2
Legal Lot Number	12
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3000
Census Tract	12508

Owner

Source: Boulder County records, as of June 15, 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	4710 HANCOCK DR, BOULDER, CO 80303-1104
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Dec 8, 2021	Deed of Trust, Mortgage · Conventional Mortgage FIRSTBANK
Jul 20, 2020	Grant Deed, Transfer · Conventional Mortgage ELEVATIONS CU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 7, 1984 · Amount on Record
Deed Sale	Jun 7, 1984 · Amount on Record
Prior Sale	Apr 12, 1972 · Amount on Record
Deed Document Number	1984625655
Last Transfer Date	Apr 5, 2013
Transfer Doc	0003303995
Record Updated	Sep 20, 2026

December 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	660 S 45TH ST, BOULDER, CO 80305-6052
Transaction Type	Mortgage
Record Updated	Dec 29, 2021
Title Company	LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	560 S 45TH ST, BOULDER, CO 80305-6050

Mortgage

Document Number	0003933207
Date	Dec 8, 2021
Instrument	3933207

Lender

Name	FIRSTBANK
Type	Bank
Address	DENVER, CO 80215

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Dec 1, 2051

July 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	Jul 20, 2020
Property Address	660 S 45TH ST, BOULDER, CO 80305-6052
Document Number	0003799241
Instrument Date	Jul 9, 2020
Instrument	3799241
Transaction Type	Transfer
Record Updated	Aug 26, 2020
Title Company	FIRST INTEGRITY TITLE, FITCO-FIRST INTEGRITY TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$64.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	686 SUNDANCE CIR ERIE CO 805166568, ERIE, CO 80516-6568

Mortgage

Document Number	3799244
Date	Jul 20, 2020
Instrument	3799244

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jul 19, 2050

Mortgage

Document Number	3799245,
Date	Jul 20, 2020
Instrument	3799245

Lender

Name	REGENTS/THE UNIVERSITY/CO
Address	1800 N GRANT ST, DENVER, CO 80203-1185

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Jul 19, 2050

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of June 15, 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		$53,720 (+8.8%) Land $32,987 Building $20,733	$790,000 (-) Land $485,100 Building $304,900
2025	$4,788.00 (+1.38%)	$49,375 (-12.66%) Land $30,319 Building $19,056	$790,000 (-6.38%) Land $485,100 Building $304,900
2024	$4,723.00 (+1.81%)
2023	$4,639.00 (+12.13%)	$56,535 (+29.22%) Land $35,825 Building $20,710	$843,800 (+34.04%) Land $534,700 Building $309,100
2022	$4,137.00	$43,750 Land $26,667 Building $17,083	$629,500 Land $383,700 Building $245,800

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

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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