6236 Mount Rushmore Cir, Castro Valley, CA 94552 Property Records

Alameda County property record for 6236 Mount Rushmore Cir, Castro Valley, CA 94552

Property Summary

Property Type	Single Family Home
Details	2 bd · 2.5 ba · 1,350 sqft · built 1989
Lot Size	0.063 acres (2,725 sqft)
Owner	2 Individual Names on Record
Last Sale	$379,000 (Jun 2012)
Tax Bill	$6,403 (2025)
Deeds & Mortgages	Sep 2023 Second Mortgage Mar 2023 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`85A-6407-69`

Property Details

APN / Parcel Number

Primary APN	`85A-6407-69`
Alternative APN	`085A-6407-069-00`

Interior

Bedrooms	2 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	5 Rooms
Stories	2 Stories
Building Area	1,350 sqft Living Area

Exterior

Year Built	Built 1989
Effective Year Built	Effective 1989
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	2,725 sqft (0.063 acres)

Location & Zoning

Street Address	6236 MOUNT RUSHMORE CIR
City	CASTRO VALLEY
State	CA
Zip	94552-1946
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00056 BLK: TR: 5339
Legal Subdivision	TRACT 5339
Legal Tract	5339
Legal Lot Number	56
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	2
Census Block	2013
Census Tract	430101

Owner

Source: Alameda County records, as of August 5, 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	6236 MOUNT RUSHMORE CIR, CASTRO VALLEY, CA 94552-1946
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Sep 14, 2023	Deed of Trust, Mortgage · Stand-Alone Second Mortgage SANDIA LABORATORY FCU
Mar 16, 2023	Intrafamily Transfer, Transfer
Dec 16, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
May 29, 2020	Quit Claim Deed, Transfer NOT AVAILABLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 7, 2012 · Amount on Record
Deed Sale	Jun 7, 2012 · Amount on Record
Prior Sale	Dec 20, 2005 · Amount on Record
Deed Document Number	2012186183
Last Transfer Date	Mar 14, 2023
Transfer Doc	0000031274
Record Updated	Oct 29, 2026

September 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	6236 MOUNT RUSHMORE CIR, CASTRO VALLEY, CA 94552-1946
Transaction Type	Mortgage
Record Updated	Oct 9, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	6236 MOUNT RUSHMORE CIR, CASTRO VALLEY, CA 94552-1946

Mortgage

Document Number	0000105043
Date	Sep 14, 2023
Instrument	2023105043

Lender

Name	SANDIA LABORATORY FCU
Type	Credit Union
Address	ALBUQUERQUE, NM 87111

Agreement

Type	Stand-Alone Second Mortgage
Amount	Amount Recorded
Term	241 Months
Due	Oct 1, 2043

Interest

Rate Type	Adjustable Rate
Rate	6.5%
Type Change Date	Oct 1, 2028
Change Frequency	5 Years
Min Rate At Change	2%
Max Rate At Change	4%
Index	5-Year TN
Max Rate	11.5%

March 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Mar 16, 2023
Property Address	6236 MOUNT RUSHMORE CIR, CASTRO VALLEY, CA 94552-1946
Document Number	0000031274
Map Reference	MB 160 PG 90-95
Instrument Date	Mar 14, 2023
Instrument	2023031274
Transaction Type	Transfer
Record Updated	Apr 7, 2023

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	Community Property with Right of Survivorship
Address	6236 MOUNT RUSHMORE CIR, CASTRO VALLEY, CA 94552-1946

December 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Dec 16, 2020
Property Address	6236 MOUNT RUSHMORE CIR, CASTRO VALLEY, CA 94552-1946
Document Number	0000353173
Map Reference	MB 160 PG 90-95
Instrument Date	Dec 12, 2020
Instrument	2020353173
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	NORTH AMERICAN TITLE

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	6236 MOUNT RUSHMORE CIR, CASTRO VALLEY, CA 94552-1946

Mortgage

Document Number	0000353174
Date	Dec 16, 2020
Instrument	2020353174

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2051

May 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	May 29, 2020
Property Address	6236 MOUNT RUSHMORE CIR, CASTRO VALLEY, CA 94552-1946
Document Number	0000123350
Instrument Date	May 27, 2020
Instrument	123350
Transaction Type	Transfer
Record Updated	Jul 14, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	6236 MOUNT RUSHMORE CIR CASTRO VALLEY CA 945521946, CASTRO VALLEY, CA 94552-1946

Tax Assessment & Valuation

Source: Alameda County assessment roll, as of August 5, 2026

Property Jurisdictions

Type	Name
State	California
County	Alameda County
Unified School District	Castro Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$478,536 (+2.03%) Land $145,661 Building $339,875
2025	$6,403.00 (+2.38%) Homeowner's exemption	$469,020 (+2.51%) Land $142,806 Building $333,214
2024	$6,254.00 (+1.81%)
2023	$6,143.00 Homeowner's exemption	$457,540 Land $137,262 Building $320,278	$841,590

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

Flood

Source: FEMA National Flood Hazard Layer, effective May 25, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

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

Wildfire Risk	High above 72% of the US · above 47% of California
Wildfire Likelihood	0.3% 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	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
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. 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 252 locations within half a mile, as of December 31, 2025

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

May also be available: Etheric Networks, Unwired.

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