3445 Martin Dr, Boulder, CO 80305 Property Records

Boulder County property record for 3445 Martin Dr, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.25 ba · 1,342 sqft · built 1955
Lot Size	0.168 acres (7,327 sqft)
Owner	2 Individual Names on File
Last Sale	$1,135,000 (Jul 2025)
Tax Bill	$5,415 (2025)
Deeds & Mortgages	Jul 2023 Sale & Mortgage
Flood Zone	Zone X (moderate risk)
APN	`1577-05-3-04-006`

Property Details

APN / Parcel Number

Primary APN	`1577-05-3-04-006`
Alternative APNs	`R0011081` `0011081`

Interior

Bedrooms	3 Beds
Full Baths	2.25 Baths
Half Baths	2 Half Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,342 sqft Living Area
Gross Area	1,636 sqft
1st Floor Area	1,342 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1955
Effective Year Built	Effective 2000
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	7,327 sqft (0.168 acres)
Garage Type	Attached
Garage Area	294 sqft
Patio Area	315 sqft
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0011081
Street Address	3445 MARTIN DR
City	BOULDER
State	CO
Zip	80305-3448
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 8 BLK 9 MARTIN ACRES 1
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	MARTIN ACRES 1 - BO
Legal Block	9
Legal Lot Number	8
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1015
Census Tract	12507

Owner

3445 Martin Dr is owned and occupied by two individuals who bought it in July 2025.

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

Owner of Record	2 Individual Names on File
Mailing Address	3445 MARTIN DR, BOULDER, CO 80305-3448
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

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 23, 2025 · Amount on File
Deed Sale	Jul 23, 2025 · Amount on File
Prior Sale	Jul 11, 2023 · Amount on File
Deed Document Number	20254095906
Prior Transfer Date	Apr 23, 1999
Prior Transfer Doc	0001930956
Record Updated	Oct 29, 2026

July 2023: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jul 11, 2023
Property Address	3445 MARTIN DR, BOULDER, CO 80305-3448
Document Number	0004013846
Instrument Date	Jul 10, 2023
Instrument	4013846
Transaction Type	Transfer
Record Updated	Aug 4, 2023
Title Company	HILLSBOROUGH TITLE INC, HTC

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$115.00
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	3445 MARTIN DR, BOULDER, CO 80305-3448

Mortgage

Document Number	0004013847
Date	Jul 11, 2023
Instrument	4013847

Lender

Name	FIRST WESTERN TRUST BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Aug 1, 2053

Tax Assessment & Valuation

The 2025 property tax bill for 3445 Martin Dr was $5,415, up 11.9% from the year before.

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		$57,038 (+0.42%) Land $30,457 Building $26,581	$908,800 (-) Land $517,900 Building $390,900
2025	$5,415.00 (+11.95%)	$56,800 Land $32,369 Building $24,431	$908,800 Land $517,900 Building $390,900
2024	$4,837.00 (+0.19%)
2023	$4,828.00 (+12.17%)	$58,725 (+28.94%) Land $37,734 Building $20,991	$876,500 (+33.76%) Land $563,200 Building $313,300
2022	$4,304.00	$45,544 Land $28,141 Building $17,403	$655,300 Land $404,900 Building $250,400

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

FEMA maps place 3445 Martin Dr in Zone X, an area of moderate flood risk, though there have been 16 flood claims nearby since 1995.

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 moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 25 policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	25 in force
Nearby Flood Claims	16 (1995–2013)
Claims Outside the SFHA	2 of 16
Most Recent Claim	Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 14 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

Wildfire risk around 3445 Martin Dr is low, with a 0.03% 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	0.03% 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 451 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
T-Mobile Fixed Wireless	100 / 20