645 Sierra Ave, Mountain View, CA 94041 Property Records

Santa Clara County property record for 645 Sierra Ave, Mountain View, CA 94041

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,850 sqft · built 1948
Lot Size	0.117 acres (5,096 sqft)
Owner	Individual Name on Record
Last Sale	$2,300,000 (Apr 2021)
Tax Bill	$32,606 (2025)
Deeds & Mortgages	May 2023 Line of Credit Apr 2021 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`158-09-039`

Property Details

APN / Parcel Number

Primary APN	`158-09-039`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,253 sqft Living Area
Gross Area	1,400 sqft
1st Floor Area	1,400 sqft

Exterior

Year Built	Built 1948
Effective Year Built	Effective 1948
Architectural Style	H-Shape
Construction Type	Wood
Lot Area	5,096 sqft (0.117 acres)
Lot Dimensions	100 ft deep x 51 ft wide
Garage Area	400 sqft
Porch	None

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C

Location & Zoning

Street Address	645 SIERRA AVE
City	MOUNTAIN VIEW
State	CA
Zip	94041-2146
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	LOT 68
Legal Subdivision	NELSON MANOR
Legal Lot Number	68
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	1
Census Block	1010
Census Tract	509600

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	Individual Name on Record
Mailing Address	645 SIERRA AVE, MOUNTAIN VIEW, CA 94041-2146
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
May 23, 2023	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA NA
Apr 20, 2021	Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA
Mar 11, 2020	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 20, 2021 · Amount on Record
Deed Sale	Apr 20, 2021 · Amount on Record
Prior Sale	Sep 21, 2001 · Amount on Record
Deed Document Number	202124927016
Prior Transfer Date	Feb 12, 2020
Prior Transfer Doc	0024426819
Record Updated	Oct 29, 2026

May 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	645 SIERRA AVE, MOUNTAIN VIEW, CA 94041-2146
Transaction Type	Mortgage
Record Updated	Jun 1, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	645 SIERRA AVE, MOUNTAIN VIEW, CA 94041-2146

Mortgage

Document Number	0025478592
Date	May 23, 2023
Instrument	25478592

Lender

Name	BANK OF AMERICA NA
Type	Bank
Address	FORT WORTH, TX 76155

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

April 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SANTA CLARA CA
Recording Date	Apr 20, 2021
Property Address	645 SIERRA AVE, MOUNTAIN VIEW, CA 94041-2146
Document Number	0024927016
Map Reference	MB V PG 7
Instrument Date	Mar 22, 2021
Instrument	24927016
Transaction Type	Transfer
Record Updated	Sep 1, 2021
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	645 SIERRA AVE, MOUNTAIN VIEW, CA 94041-2146

Mortgage

Document Number	0024927017
Date	Apr 20, 2021
Instrument	24927017

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

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

Interest

Rate Type	Adjustable Rate
Rate	2.25%
Type Change Date	May 1, 2028
Change Frequency	Monthly
Min Rate At Change	2.75%
Max Rate At Change	4.25%
Index	Other
Max Rate	7.25%

March 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SANTA CLARA CA
Recording Date	Mar 11, 2020
Property Address	645 SIERRA AVE, MOUNTAIN VIEW, CA 94041-2146
Document Number	0024426819
Instrument Date	Feb 12, 2020
Instrument	24426819
Transaction Type	Transfer
Record Updated	Mar 26, 2020
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	68-1125 N KANIKU DR #202 KAMUELA HI 967437724, 202, KAMUELA, HI 96743-7724

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		$2,770,923 (+0.02%) Land $2,285,446 Building $485,477
2025	$32,606.00 (+15.28%)	$2,770,452 (+15.78%) Land $2,240,634 Building $529,818
2023	$28,283.00 (+0.26%)	$2,392,920 Land $2,153,628 Building $239,292
2022	$28,210.00

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 minimal risk
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	Not rated no burnable land within 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 MOUNTAIN VIEW serves 81,340 people · EPA ID CA4310007
Water Source	Purchased surface water from several systems
Last State Inspection	Feb 2025
Lead	Under 1 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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 538 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable · Fiber in parts of the area	2,000 / 2,000
Etheric Networks Fixed Wireless	250 / 100
Ridge Wireless Fixed Wireless	100 / 60
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, Cruzio, GeoLinks, Verizon.

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