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

Boulder County property record for 555 S 45th St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	5 bd · 2.5 ba · 2,300 sqft · built 1959
Lot Size	0.164 acres (7,123 sqft)
Owner	Individual Name on Record
Last Sale	$49,060 (Feb 2014)
Tax Bill	$6,350 (2025)
Deeds & Mortgages	Jul 2020 Mortgage Jul 2017 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1577-08-1-03-031`

Property Details

APN / Parcel Number

Primary APN	`1577-08-1-03-031`
Alternative APNs	`R0011504` `0011504`

Interior

Bedrooms	5 Beds
Full Baths	2.5 Baths
Half Baths	2 Half Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,300 sqft Living Area
Gross Area	2,444 sqft
1st Floor Area	1,222 sqft
Basement Area	1,222 sqft
Finished Basement	1,078 sqft
Unfinished Basement	144 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1959
Effective Year Built	Effective 1995
Architectural Style	Ranch
Exterior Material	Combination
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	7,123 sqft (0.164 acres)
Patio Area	412 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0011504
Street Address	555 S 45TH ST
City	BOULDER
State	CO
Zip	80305-6049
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 31 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	31
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	555 S 45TH ST, BOULDER, CO 80305-6049
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jul 24, 2020	Deed of Trust, Mortgage · Conventional Mortgage BETTER MTG CORP ISAOA
Jul 14, 2017	Intrafamily Transfer, Transfer · Conventional Mortgage BNC NATIONAL BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Feb 28, 2014 · Amount on Record
Deed Sale	Feb 28, 2014 · Amount on Record
Prior Sale	Nov 29, 2007 · Amount on Record
Deed Document Number	20143368124
Last Transfer Date	Jul 10, 2017
Transfer Doc	0003603380
Record Updated	Oct 29, 2026

July 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	555 S 45TH ST, BOULDER, CO 80305-6049
Document Number	0003804341
Instrument Date	Jul 24, 2020
Transaction Type	Mortgage
Record Updated	Sep 25, 2020
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	555 S 45TH ST BOULDER CO 803056049, BOULDER, CO 80305-6049

Mortgage

Document Number	0003804341
Date	Aug 5, 2020
Instrument	3804341

Lender

Name	BETTER MTG CORP ISAOA
Address	NEW YORK, NY 10271

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Aug 4, 2050

July 2017: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	BOULDER CO
Recording Date	Jul 14, 2017
Property Address	555 S 45TH ST, BOULDER, CO 80305-6049
Document Number	0003603380
Instrument Date	Jul 10, 2017
Instrument	3603380
Transaction Type	Transfer
Record Updated	Mar 31, 2022

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	55 S 45TH ST, BOULDER, CO 80305

Mortgage

Document Number	0003603381
Date	Jul 14, 2017
Instrument	3603381

Lender

Name	BNC NATIONAL BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Aug 1, 2047

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		$67,708 (+1.65%) Land $27,520 Building $40,188	$1,065,700 (-) Land $474,700 Building $591,000
2025	$6,350.00 (+1%)	$66,607 (-12.93%) Land $29,669 Building $36,938	$1,065,700 (-6.66%) Land $474,700 Building $591,000
2023	$6,287.00 (+15.76%)	$76,494 (+30.78%) Land $35,061 Building $41,433	$1,141,700 (+35.66%) Land $523,300 Building $618,400
2022	$5,431.00	$58,491 Land $26,104 Building $32,387	$841,600 Land $375,600 Building $466,000

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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