442 Martens Ave, Mountain View, CA 94040 Property Records

Santa Clara County property record for 442 Martens Ave, Mountain View, CA 94040

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 3,051 sqft · built 1993
Lot Size	0.238 acres (10,370 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,300,000 (Jan 2014)
Tax Bill	$33,213 (2025)
Deeds & Mortgages	Jan 2026 Line of Credit Sep 2020 Mortgage + 1 more
Flood Zone	Zone X (moderate risk)
APN	`197-40-023`

Property Details

APN / Parcel Number

Primary APN	`197-40-023`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	3,051 sqft Living Area
1st Floor Area	1,519 sqft
2nd Floor Area	1,532 sqft
Family Room	Family Room
Utility Room	Utility Room

Exterior

Year Built	Built 1993
Effective Year Built	Effective 1993
Architectural Style	H-Shape
Construction Type	Wood
Lot Area	10,370 sqft (0.238 acres)
Garage Area	635 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch

Utilities, Heating & Cooling

Heating System	HVAC

Location & Zoning

Street Address	442 MARTENS AVE
City	MOUNTAIN VIEW
State	CA
Zip	94040-3224
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1-10
Legal Description	TRACT 8166 BOOK 591 PAGE 10 PAGE 14 LOT 7
Legal Subdivision	TRACT NO 8166
Legal Tract	8166
Legal Lot Number	7
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	1
Census Block	1008
Census Tract	509902

Owner

Source: Santa Clara County records, as of July 27, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	442 MARTENS AVE, MOUNTAIN VIEW, CA 94040-3224
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Jan 12, 2026	Deed of Trust, Mortgage · Line of Credit CITIBANK NA
Sep 15, 2020	Deed of Trust, Mortgage · Conventional Mortgage CITIBANK NA
Sep 15, 2020	Deed of Trust, Mortgage · Line of Credit CITIBANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 24, 2014 · Amount on Record
Deed Sale	Jan 24, 2014 · Amount on Record
Prior Sale	Jul 8, 2008
Deed Document Number	201422503629
Prior Transfer Date	Sep 3, 2011
Prior Transfer Doc	0021306808
Record Updated	Oct 29, 2026

January 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	442 MARTENS AVE, MOUNTAIN VIEW, CA 94040-3224
Transaction Type	Mortgage
Record Updated	Jan 20, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0025929225
Date	Jan 12, 2026
Instrument	25929225

Lender

Name	CITIBANK NA
Type	Bank
Address	1000 TECHNOLOGY DR, O FALLON, MO 63368

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	361 Months
Due	Feb 5, 2056

Interest

Change Frequency	Monthly

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	442 MARTENS AVE, MOUNTAIN VIEW, CA 94040-3224
Transaction Type	Mortgage
Record Updated	Feb 7, 2021
Title Company	TICOR TTL ORANGE CNTY BRANCH

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	442 MARTENS AVE, MOUNTAIN VIEW, CA 94040-3224

Mortgage

Document Number	0024613363
Date	Sep 15, 2020
Instrument	24613363

Lender

Name	CITIBANK NA
Type	Bank
Address	O FALLON, MO 63368

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Oct 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	2.87%
Type Change Date	Oct 1, 2027
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	7.87%
Index	1-Year LIBOR
Max Rate	7.87%

September 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	442 MARTENS AVE, MOUNTAIN VIEW, CA 94040-3224
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	TICOR TTL ORANGE CNTY BRANCH

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	442 MARTENS AVE, MOUNTAIN VIEW, CA 94040-3224

Mortgage

Document Number	0024613364
Date	Sep 15, 2020
Instrument	24613364

Lender

Name	CITIBANK NA
Type	Bank
Address	SIOUX FALLS, SD 57108

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Sep 14, 2050

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

Tax Assessment & Valuation

Source: Santa Clara County assessment roll, as of July 27, 2026

Property Jurisdictions

Type	Name
State	California
County	Santa Clara County
Municipality	Mountain View City
Elementary School District	Mountain View Whisman Elementary School District (KG - 08)
Secondary School District	Mountain View-Los Altos Union School District (09 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$2,875,865 (+2%) Land $1,750,528 Building $1,125,337
2025	$33,213.00 (+4.09%) Homeowner's exemption	$2,819,476 (+4.04%) Land $1,716,204 Building $1,103,272
2023	$31,907.00 (+0.26%) Homeowner's exemption	$2,709,994 Land $1,649,562 Building $1,060,432
2022	$31,823.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective January 18, 2026

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone A, within 500 ft
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; 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 99.1% of the US · lower than 99.2% of California
Wildfire Likelihood	Under 0.01% 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	CWSC LOS ALTOS SUBURBAN private · serves 63,559 people · EPA ID CA4310001
Water Source	Purchased surface water from several systems
Last State Inspection	Aug 2024
Lead	2 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 473 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100

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

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