4505 Darley Ave, Boulder, CO 80305 Property Records

Boulder County property record for 4505 Darley Ave, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.25 ba · 1,877 sqft · built 1961
Lot Size	0.201 acres (8,775 sqft)
Owner	2 Individual Names on File
Last Sale	$731,000 (Oct 2019)
Tax Bill	$5,364 (2025)
Deeds & Mortgages	Apr 2021 Mortgage Oct 2019 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1577-08-1-23-021`

Property Details

APN / Parcel Number

Primary APN	`1577-08-1-23-021`
Alternative APNs	`R0009572` `0009572`

Interior

Bedrooms	3 Beds
Full Baths	2.25 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,877 sqft Living Area
Gross Area	2,303 sqft
1st Floor Area	988 sqft
Basement Area	979 sqft
Finished Basement	889 sqft
Unfinished Basement	90 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1961
Effective Year Built	Effective 1984
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Lot Area	8,775 sqft (0.201 acres)
Garage Type	Attached
Garage Area	336 sqft
Parking Spaces	1 Parking Space
Porch	Porch
Porch Area	90 sqft
Patio Area	240 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0009572
Street Address	4505 DARLEY AVE
City	BOULDER
State	CO
Zip	80305-6031
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 21 BLK 1 MAJESTIC HEIGHTS
Legal Range	70
Legal Township	1S
Legal Section	08
Legal Subdivision	MAJESTIC HEIGHTS - BO
Legal Block	1
Legal Lot Number	21
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1003
Census Tract	12508

Owner

4505 Darley Ave is owned and occupied by two individuals who bought it in October 2019.

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

Owner of Record	2 Individual Names on File
Mailing Address	4505 DARLEY AVE, BOULDER, CO 80305-6031
Occupancy	Owner Occupied
Owner Type	Individual

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
Apr 12, 2021	Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU
Oct 15, 2019	Grant Deed, Transfer · Conventional Mortgage ELEVATIONS CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 15, 2019 · Amount on File
Deed Sale	Oct 15, 2019 · Amount on File
Prior Sale	Jul 31, 1995 · Amount on File
Deed Document Number	20193742538
Prior Transfer Date	Jul 26, 2011
Prior Transfer Doc	0003161605
Record Updated	Oct 29, 2026

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4505 DARLEY AVE, BOULDER, CO 80305-6031
Transaction Type	Mortgage
Record Updated	Apr 21, 2021
Title Company	FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003876000
Date	Apr 12, 2021
Instrument	3876000

Lender

Name	ELEVATIONS CU
Type	Credit Union
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Apr 1, 2051

October 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	Oct 15, 2019
Property Address	4505 DARLEY AVE, BOULDER, CO 80305-6031
Document Number	0003742538
Instrument Date	Oct 8, 2019
Instrument	3742538
Transaction Type	Transfer
Record Updated	Oct 25, 2019
Title Company	HERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$73.10
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	4505 DARLEY AVE BOULDER CO 803056031, BOULDER, CO 80305-6031

Mortgage

Document Number	3742539
Date	Oct 15, 2019
Instrument	3742539

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Oct 14, 2049

Mortgage

Document Number	3742540,
Date	Oct 15, 2019
Instrument	3742540

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Amount	Amount on Record
Term	240 Months
Due	Oct 14, 2039

Interest

Rate Type	Adjustable Rate
Rate	4.75%

Tax Assessment & Valuation

The 2025 property tax bill for 4505 Darley Ave was $5,364.

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		$56,447 (+0.34%) Land $31,069 Building $25,378	$900,100 (-) Land $526,900 Building $373,200
2025	$5,364.00	$56,256 Land $32,931 Building $23,325	$900,100 Land $526,900 Building $373,200
2023	$5,246.00 (+13.85%)	$64,434 (+29.85%) Land $38,914 Building $25,520	$961,700 (+34.69%) Land $580,800 Building $380,900
2022	$4,608.00	$49,623 Land $28,968 Building $20,655	$714,000 Land $416,800 Building $297,200

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

FEMA maps place 4505 Darley Ave 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 4505 Darley Ave is moderate, ranking above 45% of the US, with a 0.09% annual chance of wildfire.

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

Wildfire Risk	Moderate above 45% of the US · lower than 72% of Colorado
Wildfire Likelihood	0.09% 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 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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