4577 Tanglewood Trl, Boulder, CO 80301 Property Records

Boulder County property record for 4577 Tanglewood Trl, Boulder, CO 80301

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.25 ba · 2,830 sqft · built 1969
Lot Size	0.306 acres (13,339 sqft)
Owner	2 Individual Names on File
Last Sale	$1,030,000 (Apr 2024)
Tax Bill	$7,204 (2025)
Deeds & Mortgages	Jul 2026 Line of Credit Jan 2024 Line of Credit + 3 more
Flood Zone	Zone X (minimal risk)
APN	`1463-12-3-13-007`

Property Details

APN / Parcel Number

Primary APN	`1463-12-3-13-007`
Alternative APNs	`R0038491` `0038491`

Interior

Bedrooms	4 Beds
Full Baths	3.25 Baths
Half Baths	2 Half Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,830 sqft Living Area
Gross Area	3,271 sqft
1st Floor Area	1,850 sqft
Basement Area	980 sqft
Finished Basement	980 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1969
Effective Year Built	Effective 2000
Architectural Style	Ranch
Exterior Material	Combination
Construction Type	Frame
Roof Material	Asphalt
Lot Area	13,339 sqft (0.306 acres)
Garage Type	Attached
Garage Area	441 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Porch Area	220 sqft
Patio Area	225 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0038491
Street Address	4577 TANGLEWOOD TRL
City	BOULDER
State	CO
Zip	80301-3924
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	SR
Legal Description	LOT 11 BLK 9 GUN BARREL GREEN
Legal Range	70
Legal Township	1N
Legal Section	11
Legal Subdivision	GUNBARREL GREEN
Legal Block	9
Legal Lot Number	11
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	2
Census Block	2004
Census Tract	12708

Owner

4577 Tanglewood Trl is owned and occupied by two individuals who bought it in April 2024.

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

Owner of Record	2 Individual Names on File
Mailing Address	4577 TANGLEWOOD TRL, BOULDER, CO 80301-3924
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

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

Deeds, Mortgages & Sale History

Date	Document
Jul 6, 2026	Deed of Trust, Mortgage · Line of Credit NONE LISTED ON DOCUMENT
Jan 8, 2024	Deed of Trust, Mortgage · Line of Credit SOOPER CU
Sep 29, 2020	Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU
Oct 3, 2019	Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU
Oct 11, 2018	Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 29, 2024 · Amount on File
Deed Sale	Apr 29, 2024 · Amount on File
Prior Sale	Jun 17, 2016 · Amount on File
Deed Document Number	20244045023
Prior Transfer Date	Jan 7, 2004
Prior Transfer Doc	0002549479
Record Updated	Oct 29, 2026

July 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Recording Date	Jul 6, 2026
Property Address	4577 TANGLEWOOD TRL, BOULDER, CO 80301-3924
Document Number	0004138593
Instrument Date	Jun 29, 2026
Instrument	20264138593
Transaction Type	Mortgage
Record Updated	Jul 15, 2026
Title Company	NONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4577 TANGLEWOOD TRL, BOULDER, CO 80301-3924

Mortgage

Document Number	0004138593,
Date	Jul 6, 2026
Instrument	20264138593

Lender

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	240 Months
Due	Jul 1, 2046

Interest

Rate	6.53%
Max Rate	-1%

January 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4577 TANGLEWOOD TRL, BOULDER, CO 80301-3924
Transaction Type	Mortgage
Record Updated	Jan 29, 2024

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4577 TANGLEWOOD TRL, BOULDER, CO 80301-3924

Mortgage

Document Number	0004033318
Date	Jan 8, 2024
Instrument	4033318

Lender

Name	SOOPER CU
Type	Credit Union
Address	ARVADA, CO 80003

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	299 Months
Due	Dec 28, 2048

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4577 TANGLEWOOD TRL, BOULDER, CO 80301-3924
Transaction Type	Mortgage
Record Updated	Oct 21, 2022
Title Company	HERITAGE TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003819410
Date	Sep 29, 2020
Instrument	3819410

Lender

Name	ELEVATIONS CU
Type	Credit Union
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	181 Months
Due	Oct 1, 2035

October 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4577 TANGLEWOOD TRL, BOULDER, CO 80301-3924
Document Number	0003741466
Instrument Date	Oct 3, 2019
Transaction Type	Mortgage
Record Updated	Oct 18, 2019
Title Company	HERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	4577 TANGLEWOOD TRL BOULDER CO 803013924, BOULDER, CO 80301-3924

Mortgage

Document Number	0003741466
Date	Oct 9, 2019
Instrument	3741466

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	240 Months
Due	Oct 8, 2039

October 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4577 TANGLEWOOD TRL, BOULDER, CO 80301-3924
Document Number	0003681611
Instrument Date	Oct 11, 2018
Transaction Type	Mortgage
Record Updated	Oct 26, 2018
Title Company	HERITAGE TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	4577 TANGLEWOOD TRL BOULDER CO 803013924, BOULDER, CO 80301-3924

Mortgage

Document Number	0003681611
Date	Oct 17, 2018
Instrument	3681611

Lender

Name	ELEVATIONS CU
Address	BROOMFIELD, CO 80021

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	240 Months
Due	Oct 16, 2038

Tax Assessment & Valuation

The 2025 property tax bill for 4577 Tanglewood Trl was $7,204, up 7.6% from the year before.

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		$73,535 (+2.19%) Land $33,898 Building $39,637	$1,151,400 (-) Land $568,500 Building $582,900
2025	$7,204.00 (+7.55%)	$71,962 Land $35,531 Building $36,431	$1,151,400 Land $568,500 Building $582,900
2024	$6,698.00 (+1.67%)
2023	$6,588.00 (+19.33%)	$76,153 (+34.53%) Land $39,564 Building $36,589	$1,136,600 (+39.55%) Land $590,500 Building $546,100
2022	$5,521.00	$56,608 Land $28,342 Building $28,266	$814,500 Land $407,800 Building $406,700

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

FEMA maps place 4577 Tanglewood Trl in Zone X, an area of minimal flood risk.

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	1 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

Wildfire risk around 4577 Tanglewood Trl is low, with a 0.06% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 65% of the US · lower than 82% of Colorado
Wildfire Likelihood	0.06% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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 381 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
Verizon Fixed Wireless	300 / 20
CenturyLink DSL	140 / 20
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: LiveWireNet.

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