4035 Darley Ave, Boulder, CO 80305 Property Records

Boulder County property record for 4035 Darley Ave, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	3 bd · 1.75 ba · 1,580 sqft · built 1962
Lot Size	0.162 acres (7,048 sqft)
Owner	2 Individual Names on Record
Last Sale	$990,000 (Jul 2025)
Tax Bill	$6,204 (2025)
Deeds & Mortgages	Jan 2021 Mortgage Jul 2019 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`1577-08-1-15-022`

Property Details

APN / Parcel Number

Primary APN	`1577-08-1-15-022`
Alternative APNs	`R0013604` `0013604`

Interior

Bedrooms	3 Beds
Full Baths	1.75 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Building Area	1,580 sqft Living Area
Gross Area	1,844 sqft
1st Floor Area	1,052 sqft
Basement Area	528 sqft
Finished Basement	528 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1962
Effective Year Built	Effective 1975
Architectural Style	Split Level
Exterior Material	Wood Shingle
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	7,048 sqft (0.162 acres)
Garage Type	Attached
Garage Area	264 sqft
Parking Spaces	1 Parking Space
Patio Area	320 sqft

Utilities, Heating & Cooling

Heating System	Hot Water

Location & Zoning

Account Number	R0013604
Street Address	4035 DARLEY AVE
City	BOULDER
State	CO
Zip	80305-6520
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 22 BLK 5 MOUNTAIN TERRACE
Legal Range	70
Legal Township	1S
Legal Section	08
Legal Subdivision	MOUNTAIN TERRACE - BO
Legal Block	5
Legal Lot Number	22
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1011
Census Tract	12509

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	2 Individual Names on Record
Mailing Address	4035 DARLEY AVE, BOULDER, CO 80305-6520
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Jan 27, 2021	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Jul 12, 2019	Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU
Apr 19, 2017	Warranty Deed, Transfer · Conventional Mortgage GUARANTEED RATE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 16, 2025 · Amount on Record
Deed Sale	Jul 16, 2025 · Amount on Record
Prior Sale	Apr 19, 2017 · Amount on Record
Deed Document Number	20254095132
Record Updated	Oct 29, 2026

January 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4035 DARLEY AVE, BOULDER, CO 80305-6520
Transaction Type	Mortgage
Record Updated	Feb 15, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003854206
Date	Jan 27, 2021
Instrument	3854206

Lender

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

Agreement

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

July 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4035 DARLEY AVE, BOULDER, CO 80305-6520
Document Number	0003733032
Instrument Date	Jul 12, 2019
Transaction Type	Mortgage
Record Updated	Sep 11, 2019
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	4035 DARLEY AVE BOULDER CO 803056520, BOULDER, CO 80305-6520

Mortgage

Document Number	0003733032
Date	Aug 29, 2019
Instrument	3733032

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Aug 28, 2049

April 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Apr 19, 2017
Property Address	4035 DARLEY AVE, BOULDER, CO 80305-6520
Document Number	0003587486
Instrument Date	Apr 18, 2017
Instrument	3587486
Transaction Type	Transfer
Record Updated	Apr 28, 2017
Title Company	LAND TITLE GUARANTEE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$68.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4035 DARLEY AVE BOULDER CO 803056520, BOULDER, CO 80305-6520

Mortgage

Document Number	3587487
Date	Apr 19, 2017
Instrument	3587487

Lender

Name	GUARANTEED RATE
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 18, 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		$65,117 (+1.39%) Land $53,686 Building $11,431	$1,027,600 (-) Land $859,500 Building $168,100
2025	$6,204.00 (+2.55%)	$64,225 (-11.87%) Land $53,719 Building $10,506	$1,027,600 (-5.53%) Land $859,500 Building $168,100
2023	$6,050.00 (+12.37%)	$72,876 (+27.45%) Land $61,647 Building $11,229	$1,087,700 (+32.21%) Land $920,100 Building $167,600
2022	$5,384.00	$57,178 Land $45,349 Building $11,829	$822,700 Land $652,500 Building $170,200

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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