1020 Portola Ave, Spring Valley, CA 91977 Property Records

San Diego County property record for 1020 Portola Ave, Spring Valley, CA 91977

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,968 sqft · built 1980
Lot Size	0.147 acres (6,415 sqft)
Owner	2 Individual Names on Record
Last Sale	$847,500 (Apr 2025)
Tax Bill	$8,573 (2025)
Deeds & Mortgages	Apr 2024 Sale & Construction Loan Apr 2024 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`579-388-15-00`

Property Details

APN / Parcel Number

Primary APN	`579-388-15-00`
Alternative APN	`5790810500`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	1,968 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1980
Effective Year Built	Effective 1980
Architectural Style	Contemporary
Exterior Material	Wood Shake/Shingle
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	6,415 sqft (0.147 acres)
Lot Dimensions	100 ft deep x 50 ft wide
View / Lot	Good
Garage Type	Carport
Carport	Carport
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Old Parcel Number	5790810500
Street Address	1020 PORTOLA AVE
City	SPRING VALLEY
State	CA
Zip	91977-4519
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RS
Legal Description	BLK 8 LOT 21 ALLEY CLSD ADJ& TR 001317
Legal Subdivision	EAST SAN DIEGO MASONIC LODGE
Legal Tract	001317
Legal Block	8
Legal Lot Number	21
Jurisdiction	SAN DIEGO CA
Township / Civil Division	SAN DIEGO
Census Block Group	3
Census Block	3005
Census Tract	13905

Owner

Source: San Diego County records, as of October 19, 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	1020 PORTOLA AVE, SPRING VALLEY, CA 91977-4519
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Apr 17, 2024	Grant Deed, Construction Loan · Construction Mortgage THAYER PROPERTIES INC
Apr 17, 2024	Affidavit of Death of Joint Tenant, Transfer FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE CO
Nov 9, 2017	Deed of Trust, Mortgage · Conventional Mortgage MR COOPER

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 15, 2025 · Amount on Record
Deed Sale	Apr 15, 2025 · Amount on Record
Prior Sale	Apr 17, 2024 · Amount on Record
Deed Document Number	202597096
Record Updated	Oct 29, 2026

April 2024: Grant Deed, Construction Loan

Document Type	Grant Deed
Jurisdiction	SAN DIEGO CA
Recording Date	Apr 17, 2024
Property Address	1020 PORTOLA AVE, SPRING VALLEY, CA 91977-4519
Document Number	0000094707
Map Reference	MAP 1317
Instrument Date	Apr 11, 2024
Instrument	2024-0094707
Transaction Type	Construction Loan
Record Updated	Apr 30, 2024
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

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

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	768 MONSERATE AVE, CHULA VISTA, CA 91910-6207

Mortgage

Document Number	0000094708
Date	Apr 17, 2024
Instrument	2024-0094708

Lender

Name	THAYER PROPERTIES INC
Type	Non-Lending Institution

Agreement

Type	Construction Mortgage
Amount	Amount Recorded

April 2024: Affidavit of Death of Joint Tenant, Transfer

Document Type	Affidavit of Death of Joint Tenant
Jurisdiction	SAN DIEGO CA
Recording Date	Apr 17, 2024
Property Address	1020 PORTOLA AVE, SPRING VALLEY, CA 91977-4519
Document Number	0000094705
Map Reference	MAP 1317
Instrument Date	Oct 18, 2023
Instrument	2024-0094705
Transaction Type	Transfer
Record Updated	Apr 30, 2024
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE CO

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

November 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN DIEGO CA
Property Address	1020 PORTOLA AVE, SPRING VALLEY, CA 91977-4519
Document Number	0000536938
Instrument Date	Nov 9, 2017
Transaction Type	Mortgage
Record Updated	Nov 22, 2017

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	1020 PORTOLA AVE SPRING VALLEY CA 919774519, SPRING VALLEY, CA 91977-4519

Mortgage

Document Number	0000536938
Date	Nov 17, 2017
Instrument	536938

Lender

Name	MR COOPER
Address	DALLAS, TX 75019

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Nov 16, 2047

Tax Assessment & Valuation

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		$864,450 (+30.38%) Land $561,000 Building $303,450
2025	$8,573.00 (+116.22%)	$663,000 (+124.98%) Land $459,000 Building $204,000
2023	$3,965.00 (+1.82%) Homeowner's exemption	$294,690 Land $130,009 Building $164,681
2022	$3,894.00

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

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
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	4 in force
Nearby Flood Claims	3 (2017–2024)
Claims Outside the SFHA	3 of 3
Most Recent Claim	Jan 2024 · Severe Storm And Flooding

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	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	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	Viejas Community System tribal government · serves 9,600 people · EPA ID 090600158
Water Source	Groundwater
Last State Inspection	Aug 2023
Also Mapped Here	OTAY WATER DISTRICT, SAN DIEGO COUNTY WATER AUTHORITY
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	2 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. The service area is an EPA estimate; the actual supplier may differ.

Internet Providers

Source: FCC Broadband Data Collection, based on 920 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
Cox Communications Cable	2,000 / 100

May also be available: Verizon.

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