4535 51st St, Boulder, CO 80301 Property Records

Boulder County property record for 4535 51st St, Boulder, CO 80301

Property Summary

Property Type	Single Family Home
Details	3 bd · 1.5 ba · 3,374 sqft · built 1969
Lot Size	0.92 acres (40,090 sqft)
Owner	Company Name on Record
Last Sale	$960,000 (May 2019)
Tax Bill	$8,438 (2025)
Deeds & Mortgages	Dec 2021 Line of Credit Oct 2021 Mortgage + 4 more
Flood Zone	Zone X (minimal risk)
APN	`1463-16-0-00-005`

Property Details

APN / Parcel Number

Primary APN	`1463-16-0-00-005`
Alternative APNs	`R0029956` `0029956`

Interior

Bedrooms	3 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	4 Rooms
Stories	1 Story
Building Area	3,374 sqft Living Area
1st Floor Area	1,687 sqft
Basement Area	1,687 sqft
Finished Basement	1,687 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1969
Effective Year Built	Effective 2000
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	40,090 sqft (0.92 acres)
Garage Type	Detached
Garage Area	720 sqft
Parking Spaces	3 Parking Spaces
Patio Area	80 sqft
Shed	1 Shed
Total Buildings	3 Buildings

Utilities, Heating & Cooling

Heating System	Hot Water

Location & Zoning

Account Number	R0029956
Street Address	4535 51ST ST
City	BOULDER
State	CO
Zip	80301-4303
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RR
Legal Description	.9 AC NE4 NW 4 16-1N-70 PER DEED 860280 10/09/67 BCR
Legal Range	70
Legal Township	1N
Legal Section	16
Legal Subdivision	FOOTHILLS EAST
Legal Block	3
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3000
Census Tract	12701

Owner

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

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Company Name on Record
Mailing Address	4535 51ST ST, BOULDER, CO 80301-4303
Owner Type	Company
Vesting	Life Tenant

Deeds, Mortgages & Sale History

Date	Document
Dec 15, 2021	Deed of Trust, Mortgage · Line of Credit FIRST NATIONAL BANK OF OMAHA
Oct 25, 2021	Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Apr 5, 2021	Deed of Trust, Mortgage · Line of Credit FIRST NATIONAL BANK OF OMAHA
Apr 1, 2020	Deed of Trust, Mortgage · Conventional Mortgage THRIVE MORTGAGE LLC
May 15, 2019	Warranty Deed, Transfer · Conventional Mortgage THRIVE MORTGAGE LLC
Nov 28, 2018	Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 15, 2019 · Amount on Record
Deed Sale	May 15, 2019 · Amount on Record
Prior Sale	Oct 9, 1967
Deed Document Number	20193712342
Last Transfer Date	Oct 11, 2024
Transfer Doc	0004063966
Record Updated	Oct 29, 2026

December 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4535 51ST ST, BOULDER, CO 80301-4303
Transaction Type	Mortgage
Record Updated	Jan 4, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003934654
Date	Dec 15, 2021
Instrument	3934654

Lender

Name	FIRST NATIONAL BANK OF OMAHA
Type	Bank
Address	OMAHA, NE 68197

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Dec 10, 2051

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

October 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4535 51ST ST, BOULDER, CO 80301-4303
Transaction Type	Mortgage
Record Updated	Nov 10, 2021
Title Company	FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003923168
Date	Oct 25, 2021
Instrument	3923168

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company
Address	48431

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2051

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4535 51ST ST, BOULDER, CO 80301-4303
Transaction Type	Mortgage
Record Updated	Apr 13, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003874252
Date	Apr 5, 2021
Instrument	3874252

Lender

Name	FIRST NATIONAL BANK OF OMAHA
Type	Bank
Address	OMAHA, NE 68197

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	359 Months
Due	Mar 28, 2051

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4535 51ST ST, BOULDER, CO 80301-4303
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	STEWART TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003775242
Date	Apr 1, 2020
Instrument	3775242

Lender

Name	THRIVE MORTGAGE LLC
Type	Mortgage Company
Address	GEORGETOWN, TX 78633

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 1, 2050

May 2019: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	May 15, 2019
Property Address	4535 51ST ST, BOULDER, CO 80301-4303
Document Number	0003712342
Instrument Date	Mar 29, 2019
Instrument	3712342
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	EQUITABLE TITLE AGENCY LLC

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$96.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	4535 51ST ST, BOULDER, CO 80301-4303

Mortgage

Document Number	0003712343
Date	May 15, 2019
Instrument	3712343

Lender

Name	THRIVE MORTGAGE LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	359 Months
Due	Apr 1, 2049

November 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4535 51ST ST, BOULDER, CO 80301-4303
Document Number	0003688506
Instrument Date	Nov 28, 2018
Transaction Type	Mortgage
Record Updated	Dec 12, 2018
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4535 51ST ST BOULDER CO 803014303, BOULDER, CO 80301-4303

Mortgage

Document Number	0003688506
Date	Dec 4, 2018
Instrument	3688506

Lender

Name	ELEVATIONS CU
Address	BROOMFIELD, CO 80021

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Dec 3, 2048

Interest

Rate Type	Adjustable Rate
Rate	4.37%

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of September 18, 2026

Property Jurisdictions

Type	Name
State	Colorado
County	Boulder County
Unified School District	Boulder Valley School District RE-2 (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$87,040 (+3.16%) Land $34,320 Building $52,720	$1,350,000 (-) Land $574,700 Building $775,300
2025	$8,438.00 (+12.48%)	$84,375 (-2.19%) Land $35,919 Building $48,456	$1,350,000 (+4.85%) Land $574,700 Building $775,300
2023	$7,502.00 (+24.33%)	$86,262 (+39.38%) Land $23,698 Building $62,564	$1,287,500 (+44.58%) Land $353,700 Building $933,800
2022	$6,034.00	$61,891 Land $19,342 Building $42,549	$890,530 Land $278,300 Building $612,230

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
Flood Insurance Cost	Premium on Record median of 29 policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	29 in force
Nearby Flood Claims	5 (1995–2013)
Claims Outside the SFHA	3 of 5
Most Recent Claim	Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 4 claims

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	High above 76% of the US · above 76% of Colorado
Wildfire Likelihood	0.5% annual chance
Exposure	Direct burnable vegetation

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	LEFT HAND WD serves 20,280 people · EPA ID CO0107471
Water Source	Surface water
Last State Inspection	Jun 2022
Lead	1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 16 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Ayva Networks Fixed Wireless	2,500 / 2,500
Xfinity Cable	2,000 / 250
LiveWireNet Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Verizon.

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