3421 Helix St, Spring Valley, CA 91977 Property Records

San Diego County property record for 3421 Helix St, Spring Valley, CA 91977

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,515 sqft · built 1937
Lot Size	0.35 acres (15,251 sqft)
Owner	Trust Name on File
Tax Bill	$1,343 (2025)
Deeds & Mortgages	Aug 2021 Mortgage Aug 2017 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`504-030-45-00`

Property Details

APN / Parcel Number

Primary APN	`504-030-45-00`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Building Area	1,515 sqft Living Area

Exterior

Year Built	Built 1937
Effective Year Built	Effective 1937
Lot Area	15,251 sqft (0.35 acres)
Garage Type	Carport
Carport	Carport
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	3421 HELIX ST
City	SPRING VALLEY
State	CA
Zip	91977-2330
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RS
Legal Description	LOT 37 /EXC WLY 402 FT/ TR 001739
Legal Subdivision	LA MESA COUNTRY CLUB
Legal Tract	001739
Legal Block	1
Legal Lot Number	37
Jurisdiction	SAN DIEGO CA
Township / Civil Division	SAN DIEGO
Census Block Group	1
Census Block	1004
Census Tract	13702

Owner

3421 Helix St is owner-occupied and held in a trust since June 2017.

Source: San Diego County records, as of July 28, 2026

Owner of Record	Trust Name on File
Mailing Address	3421 HELIX ST, SPRING VALLEY, CA 91977-2330
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Living Trust

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
Aug 9, 2021	Deed of Trust, Mortgage · Conventional Mortgage MUFG UNION BANK NA
Aug 17, 2017	Deed of Trust, Mortgage · ARM MUFG UNION BANK NA
Aug 17, 2017	Deed of Trust, Mortgage · Line of Credit MUFG UNION BANK NA
Jul 10, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Jun 29, 2017
Transfer Doc	0000310615
Record Updated	Sep 20, 2026

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN DIEGO CA
Property Address	3421 HELIX ST, SPRING VALLEY, CA 91977-2330
Transaction Type	Mortgage
Record Updated	Aug 18, 2021
Title Company	TICOR TITLE SAN DIEGO BR, TICOR TITLE SAN DIEGO BRANCH

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000563405
Date	Aug 9, 2021
Instrument	2021-0563405

Lender

Name	MUFG UNION BANK NA
Type	Bank
Address	SAN DIEGO, CA 92121

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Sep 1, 2051

August 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN DIEGO CA
Property Address	3421 HELIX ST, SPRING VALLEY, CA 91977-2330
Transaction Type	Mortgage
Record Updated	Feb 7, 2021
Title Company	TICOR TITLE SAN DIEGO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000373831
Date	Aug 17, 2017
Instrument	2017-0373831

Lender

Name	MUFG UNION BANK NA
Type	Bank
Address	SAN DIEGO, CA 92121

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Sep 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	3.87%
Type Change Date	Sep 1, 2024
Change Frequency	Annually
Min Rate At Change	2.5%
Max Rate At Change	8.87%
Index	1-Year LIBOR
Max Rate	8.87%

August 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN DIEGO CA
Property Address	3421 HELIX ST, SPRING VALLEY, CA 91977-2330
Transaction Type	Mortgage
Record Updated	Feb 7, 2021
Title Company	TICOR TITLE SAN DIEGO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000373832
Date	Aug 17, 2017
Instrument	2017-0373832

Lender

Name	MUFG UNION BANK NA
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

July 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN DIEGO CA
Recording Date	Jul 10, 2017
Property Address	3421 HELIX ST, SPRING VALLEY, CA 91977-2330
Document Number	0000310615
Instrument Date	Jun 29, 2017
Instrument	310615
Transaction Type	Transfer
Record Updated	Jul 17, 2017
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	Living Trust
Address	3421 HELIX ST SPRING VALLEY CA 919772330, SPRING VALLEY, CA 91977-2330

Tax Assessment & Valuation

The 2025 property tax bill for 3421 Helix St was $1,343.

Source: San Diego County assessment roll, as of July 28, 2026

Property Jurisdictions

Type	Name
State	California
County	San Diego County
Secondary School District	Grossmont Union High School District (09 - 12)
Elementary School District	La Mesa-Spring Valley School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$52,478 (+2%) Land $17,403 Building $35,075
2025	$1,343.00	$51,450 Land $17,062 Building $34,388
2023	$1,186.00 (+3.22%)	$49,453 Land $16,400 Building $33,053
2022	$1,149.00

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

Flood

FEMA maps place 3421 Helix St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 3, 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
Flood Insurance Cost	Premium on File median of 11 individual policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	30 units insured incl. 19 condo units

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

The area around 3421 Helix St has no burnable land within ember reach, so its wildfire risk is not rated.

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	HELIX WATER DISTRICT serves 277,918 people · EPA ID CA3710010
Water Source	Surface water
Lead	Under 1 ppb (2022–2024) 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 482 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Cox Communications Cable	2,000 / 500
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20

May also be available: T-Mobile.

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