21909 Alta Dr, Topanga, CA 90290 Property Records

Los Angeles County property record for 21909 Alta Dr, Topanga, CA 90290

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,471 sqft · built 1961
Lot Size	0.198 acres (8,606 sqft)
Owner	Individual Name on File
Last Sale	$930,000 (Nov 2020)
Tax Bill	$12,360 (2025)
Deeds & Mortgages	Nov 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`4434-027-026`

Property Details

APN / Parcel Number

Primary APN	`4434-027-026`
Alternative APN	`4434027004`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Building Area	1,471 sqft Living Area

Exterior

Year Built	Built 1961
Effective Year Built	Effective 1961
Construction Type	Wood
Lot Area	8,606 sqft (0.198 acres)

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	21909 ALTA DR
City	TOPANGA
State	CA
Zip	90290-4384
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR110000*
Legal Description	TR=3944 POR OF LOT 172 AND ALL OF LOTS 168 AND 169
Legal Subdivision	3944
Legal Tract	3944
Legal Block	1
Legal Lot Number	172
Jurisdiction	LOS ANGELES CA
Township / Civil Division	AGOURA HILLS-MALIBU
Census Block Group	1
Census Block	1026
Census Tract	800103

Owner

21909 Alta Dr is owned and occupied by an individual who bought it in November 2020.

Source: Los Angeles County records, as of August 25, 2026

Owner of Record	Individual Name on File
Mailing Address	21909 ALTA DR, TOPANGA, CA 90290-4384
Occupancy	Owner Occupied
Owner Type	Individual

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

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Nov 6, 2020 · Amount on File
Deed Sale	Nov 6, 2020 · Amount on File
Prior Sale	Jul 1, 2005 · Amount on File
Deed Document Number	20201408677
Prior Transfer Date	Sep 25, 1996
Prior Transfer Doc	0001603437
Record Updated	Oct 29, 2026

November 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Nov 6, 2020
Property Address	21909 ALTA DR, TOPANGA, CA 90290-4384
Document Number	0001408677
Map Reference	MB 72 PG 36-44
Instrument Date	Oct 14, 2020
Instrument	20-1408677
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	PRIORITY TITLE COMPANY

Transaction

Amount	Amount on Record
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	21909 ALTA DR, TOPANGA, CA 90290-4384

Mortgage

Document Number	0001408678
Date	Nov 6, 2020
Instrument	20-1408678

Lender

Name	HOME POINT FINANCIAL CORPORATION
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Dec 1, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 21909 Alta Dr was $12,360 with a homeowner's exemption.

Source: Los Angeles County assessment roll, as of August 25, 2026

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Unified School District	Los Angeles Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,026,791 (+2%) Land $821,434 Building $205,357
2025	$12,360.00 Homeowner's exemption	$1,006,659 Land $805,328 Building $201,331
2023	$11,701.00 (+4.97%) Homeowner's exemption	$967,571 Land $774,057 Building $193,514
2022	$11,147.00

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

Flood

FEMA maps place 21909 Alta Dr in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2024.

Source: FEMA National Flood Hazard Layer, effective September 30, 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 24 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	24 in force
Nearby Flood Claims	1 (2024)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 2024 · rainfall accumulation

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

Wildfire risk around 21909 Alta Dr is very high, ranking above 92% of the US, with a 1% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Very High above 92% of the US · above 76% of California
Wildfire Likelihood	1% annual chance
Exposure	None beyond ember reach

Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.

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	LOS ANGELES CWWD 29 & 80-MALIBU serves 31,316 people · EPA ID CA1910204
Water Source	Purchased surface water from several systems
Last State Inspection	Jul 2024
Lead	9 ppb (2024–2026) 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 44 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable	1,000 / 1,000

May also be available: AT&T.

Cell Coverage

4G LTE (outdoors only), no 5G reported

Nearby Properties on Alta Dr

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures