3935 Carlock Dr, Boulder, CO 80305 Property Records

Boulder County property record for 3935 Carlock Dr, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,836 sqft · built 1978
Lot Size	0.157 acres (6,828 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,183,000 (Mar 2021)
Tax Bill	$7,998 (2025)
Deeds & Mortgages	Dec 2021 Line of Credit Jul 2021 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`1577-08-1-14-017`

Property Details

APN / Parcel Number

Primary APN	`1577-08-1-14-017`
Alternative APNs	`R0011310` `0011310`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Half Baths	3 Half Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,836 sqft Living Area
Gross Area	3,456 sqft
1st Floor Area	1,216 sqft
Upper Floors Area	900 sqft
Basement Area	900 sqft
Finished Basement	720 sqft
Unfinished Basement	180 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1978
Effective Year Built	Effective 1988
Exterior Material	Brick Veneer
Construction Type	Frame
Lot Area	6,828 sqft (0.157 acres)
Garage Type	Attached
Garage Area	440 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Porch Area	126 sqft
Patio Area	168 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0011310
Street Address	3935 CARLOCK DR
City	BOULDER
State	CO
Zip	80305-6512
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 19 BLK 4 MOUNTAIN TERRACE
Legal Range	70
Legal Township	1S
Legal Section	08
Legal Subdivision	MOUNTAIN TERRACE - BO
Legal Block	4
Legal Lot Number	19
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1013
Census Tract	12509

Owner

Source: Boulder County records, as of October 1, 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	2 Individual Names on Record
Mailing Address	3935 CARLOCK DR, BOULDER, CO 80305-6512
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Dec 22, 2021	Deed of Trust, Mortgage · Line of Credit ALPINE BANK
Jul 8, 2021	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Mar 29, 2021	Warranty Deed, Transfer · Line of Credit ALPINE BANK
Jun 24, 2020	Quit Claim Deed, Transfer NOT AVAILABLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 29, 2021 · Amount on Record
Deed Sale	Mar 29, 2021 · Amount on Record
Prior Sale	Jun 4, 1998 · Amount on Record
Deed Document Number	20213871900
Prior Transfer Date	Jun 19, 2020
Prior Transfer Doc	0003793485
Record Updated	Oct 29, 2026

December 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	3935 CARLOCK DR, BOULDER, CO 80305-6512
Transaction Type	Mortgage
Record Updated	Jan 12, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003936232
Date	Dec 22, 2021
Instrument	3936232

Lender

Name	ALPINE BANK
Type	Bank
Address	RIFLE, CO 81650

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

July 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	3935 CARLOCK DR, BOULDER, CO 80305-6512
Transaction Type	Mortgage
Record Updated	Jul 27, 2021
Title Company	ASCENDANT TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003898588
Date	Jul 8, 2021
Instrument	3898588

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

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

March 2021: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Mar 29, 2021
Property Address	3935 CARLOCK DR, BOULDER, CO 80305-6512
Document Number	0003871900
Map Reference	MB 7 PG 36
Instrument Date	Mar 25, 2021
Instrument	3871900
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	8Z TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$118.30
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	3935 CARIOCK DRIVE, BOULDER, CO 80305-6512

Mortgage

Document Number	0003871901
Date	Mar 29, 2021
Instrument	3871901

Lender

Name	ALPINE BANK
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

June 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOULDER CO
Recording Date	Jun 24, 2020
Property Address	3935 CARLOCK DR, BOULDER, CO 80305-6512
Document Number	0003793485
Instrument Date	Jun 19, 2020
Instrument	3793485
Transaction Type	Transfer
Record Updated	Jul 24, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common
Address	3935 CARLOCK DR BOULDER CO 803056512, BOULDER, CO 80305-6512

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		$86,510 (+3.13%) Land $52,768 Building $33,742	$1,342,200 (-) Land $846,000 Building $496,200
2025	$7,998.00 (+2.87%)	$83,888 (-10.49%) Land $52,875 Building $31,013	$1,342,200 (-4.05%) Land $846,000 Building $496,200
2023	$7,775.00 (+14.46%)	$93,719 (+28.11%) Land $60,675 Building $33,044	$1,398,800 (+32.89%) Land $905,600 Building $493,200
2022	$6,793.00	$73,156 Land $44,633 Building $28,523	$1,052,600 Land $642,200 Building $410,400

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	7 in force
Nearby Flood Claims	1 (1998)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 1998 · tidal / storm surge

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 80% of the US · lower than 91% of Colorado
Wildfire Likelihood	0.03% annual chance
Exposure	None beyond 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 604 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	2,000 / 1,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
LiveWireNet Fixed Wireless	250 / 100

May also be available: AT&T, T-Mobile.

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