817 Sonia Way, Mountain View, CA 94040 Property Records

Santa Clara County property record for 817 Sonia Way, Mountain View, CA 94040

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,125 sqft · built 1952
Lot Size	0.126 acres (5,481 sqft)
Owner	Company Name on Record
Tax Bill	$1,390 (2025)
Deeds & Mortgages	Apr 2024 Mortgage Nov 2022 Transfer + 3 more
Flood Zone	Zone X (minimal risk)
APN	`189-61-018`

Property Details

APN / Parcel Number

Primary APN	`189-61-018`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,125 sqft Living Area
1st Floor Area	1,125 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1952
Effective Year Built	Effective 1952
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	5,481 sqft (0.126 acres)
Lot Dimensions	87 ft deep x 63 ft wide
Garage Area	294 sqft
Parking Spaces	1 Parking Space
Porch	Porch

Utilities, Heating & Cooling

Cooling System	None

Location & Zoning

Street Address	817 SONIA WAY
City	MOUNTAIN VIEW
State	CA
Zip	94040-2528
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	TRACT 833 MIRAMAR SUBD NO 2 BOOK 31 PAGE 50 LOT 22
Legal Subdivision	MIRAMAR SUB 2
Legal Tract	833
Legal Lot Number	22
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	3
Census Block	3011
Census Tract	509801

Owner

Source: Santa Clara County records, as of July 27, 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	Company Name on Record
Mailing Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528
Owner Type	Company
Vesting	Limited Liability Company

Deeds, Mortgages & Sale History

Date	Document
Apr 2, 2024	Deed of Trust, Mortgage · Commercial Mortgage GILFIX & LA POLL ASSOCIATES LLP
Nov 29, 2022	Intrafamily Transfer, Transfer
Sep 9, 2022	Intrafamily Transfer, Transfer
May 24, 2022	Grant Deed, Transfer
Feb 9, 2022	Grant Deed, Transfer

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Sep 6, 2022
Transfer Doc	0025370381
Record Updated	Sep 20, 2026

April 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528
Transaction Type	Mortgage
Record Updated	Apr 15, 2024

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528

Mortgage

Document Number	0025617370
Date	Apr 2, 2024
Instrument	25617370

Lender

Name	GILFIX & LA POLL ASSOCIATES LLP
Type	Non-Lending Institution
Address	801 E CHARLESTON RD, PALO ALTO, CA 94303

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

November 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SANTA CLARA CA
Recording Date	Nov 29, 2022
Property Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528
Document Number	0025408978
Map Reference	MB 31 PG 50
Instrument Date	Nov 14, 2022
Instrument	25408978
Transaction Type	Transfer
Record Updated	Dec 7, 2022

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528

September 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SANTA CLARA CA
Recording Date	Sep 9, 2022
Property Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528
Document Number	0025370381
Map Reference	MB 31 PG 50
Instrument Date	Sep 6, 2022
Instrument	25370381
Transaction Type	Transfer
Record Updated	Sep 21, 2022

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528

May 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SANTA CLARA CA
Recording Date	May 24, 2022
Property Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528
Document Number	0025308431
Map Reference	MB 31 PG 50
Instrument Date	May 12, 2022
Instrument	25308431
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528

February 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SANTA CLARA CA
Recording Date	Feb 9, 2022
Property Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528
Document Number	0025236952
Map Reference	MB 31 PG 50
Instrument Date	Jan 11, 2022
Instrument	25236952
Transaction Type	Transfer
Record Updated	Feb 17, 2022

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	817 SONIA WAY, MOUNTAIN VIEW, CA 94040-2528

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		$95,664 (+2%) Land $60,252 Building $35,412
2025	$1,390.00 (+17.6%)	$93,789 (+4.04%) Land $59,071 Building $34,718
2023	$1,182.00 (+41.05%)	$90,149 Land $56,778 Building $33,371
2022	$838.00

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 · 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 7 (15% premium discount)
Nearby Flood Policies	8 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

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	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
Also Mapped Here	CITY OF MOUNTAIN VIEW
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 615 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Cruzio Fixed Wireless	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
Ridge Wireless Fixed Wireless	100 / 60
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, GeoLinks.

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