21139 Mountain Gate Dr, Riverside, CA 92507 Property Records

Riverside County property record for 21139 Mountain Gate Dr, Riverside, CA 92507

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,914 sqft · built 2020
Lot Size	0.265 acres (11,561 sqft)
Owner	2 Trust Names on File
Last Sale	$568,000 (Oct 2020)
Tax Bill	$11,114 (2025)
Deeds & Mortgages	Oct 2025 Transfer Oct 2020 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`257-610-012`

Property Details

APN / Parcel Number

Primary APN	`257-610-012`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Stories	1 Story
Building Area	2,914 sqft Living Area
Gross Area	3,377 sqft
1st Floor Area	2,914 sqft

Exterior

Year Built	Built 2020
Effective Year Built	Effective 2020
Construction Type	Wood
Lot Area	11,561 sqft (0.265 acres)
Garage Type	Attached
Garage Area	418 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	21139 MOUNTAIN GATE DR
City	RIVERSIDE
State	CA
Zip	92507-0002
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	ACRES 0.26538048 ACREAGEQUALCODE ML LOT 42 LOTTYPE L MAPPLATB 467 MAPPLATP 005 SUBDIVISIONNAME TR 29600
Legal Subdivision	TRACT NO 29600
Legal Tract	29600
Legal Lot Number	42
Jurisdiction	RIVERSIDE CA
Township / Civil Division	RIVERSIDE
Census Block Group	1
Census Block	1000
Census Tract	42214

Owner

21139 Mountain Gate Dr is owner-occupied and held in a trust since October 2020.

Source: Riverside County records, as of August 26, 2026

Owner of Record	2 Trust Names on File
Mailing Address	21139 MOUNTAIN GATE DR, RIVERSIDE, CA 92507-0002
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family 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
Oct 10, 2025	Intrafamily Transfer, Transfer
Oct 30, 2020	Quit Claim Deed FNTG BUILDER SERVICES, FNTG BUILDER SVCS
Oct 30, 2020	Grant Deed, Transfer · Conventional Mortgage KBHS HOME LOANS LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 30, 2020 · Amount on File
Deed Sale	Oct 30, 2020 · Amount on File
Deed Document Number	2020532859
Record Updated	Oct 29, 2026

October 2025: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	RIVERSIDE CA
Recording Date	Oct 10, 2025
Property Address	21139 MOUNTAIN GATE DR, RIVERSIDE, CA 92507-0002
Document Number	0000312679
Map Reference	MB 467 PG 5-25
Instrument Date	Sep 12, 2025
Instrument	2025-0312679
Transaction Type	Transfer
Record Updated	Oct 24, 2025

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
Relationship	Family Trust
Address	21139 MOUNTAIN GATE DR, RIVERSIDE, CA 92507-0002

October 2020: Quit Claim Deed

Document Type	Quit Claim Deed
Jurisdiction	RIVERSIDE CA
Recording Date	Oct 30, 2020
Property Address	21139 MOUNTAIN GATE DR, RIVERSIDE, CA 92507-0002
Document Number	0000532858
Instrument Date	Oct 30, 2020
Instrument	532858
Record Updated	Nov 12, 2020
Title Company	FNTG BUILDER SERVICES, FNTG BUILDER SVCS

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	21139 MOUNTAIN GATE DR RIVERSIDE CA 925070002, RIVERSIDE, CA 92507-0002

October 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	RIVERSIDE CA
Recording Date	Oct 30, 2020
Property Address	21139 MOUNTAIN GATE DR, RIVERSIDE, CA 92507-0002
Document Number	0000532859
Map Reference	MB 467 PG 5-25
Instrument Date	May 5, 2020
Instrument	2020-0532859
Transaction Type	Transfer
Record Updated	Oct 4, 2022
Title Company	FNTG BUILDER SERVICES

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	21139 MOUNTAIN GATE DR, RIVERSIDE, CA 92507-0002

Mortgage

Document Number	0000532860
Date	Oct 30, 2020
Instrument	2020-0532860

Lender

Name	KBHS HOME LOANS LLC
Type	Mortgage Company

Agreement

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

Tax Assessment & Valuation

The 2025 property tax bill for 21139 Mountain Gate Dr was $11,114.

Source: Riverside County assessment roll, as of July 29, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$627,051 (+2%) Land $82,804 Building $544,247
2025	$11,114.00	$614,757 Land $81,181 Building $533,576
2023	$10,514.00 (+2%)	$590,887 Land $78,030 Building $512,857
2022	$10,308.00
2021			$553,410

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 21139 Mountain Gate Dr in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2003.

Source: FEMA National Flood Hazard Layer, effective October 14, 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
Nearby Flood Policies	1 in force
Nearby Flood Claims	2 (2003–2015)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Jul 2015 · 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 21139 Mountain Gate Dr is high, ranking above 77% of the US, with a 0.6% annual chance of wildfire.

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

Wildfire Risk	High above 77% of the US · above 53% of California
Wildfire Likelihood	0.6% annual chance
Exposure	Direct burnable vegetation

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	RIVERSIDE HIGHLAND WATER COMPANY private · serves 19,053 people · EPA ID CA3610057
Water Source	Groundwater
Last State Inspection	Jan 2025
Lead	2 ppb (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	1 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 134 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Spectrum Cable	1,000 / 1,000

May also be available: Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Mountain Gate Dr

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