536 Hyacinthus Ct, San Ramon, CA 94582 Property Records

Contra Costa County property record for 536 Hyacinthus Ct, San Ramon, CA 94582

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 2,967 sqft · built 2016
Lot Size	0.164 acres (7,122 sqft)
Owner	Individual Name on Record
Last Sale	$1,427,500 (Feb 2017)
Tax Bill	$21,115 (2025)
Deeds & Mortgages	May 2019 Mortgage Feb 2017 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`222-730-001-5`

Property Details

APN / Parcel Number

Primary APN	`222-730-001-5`
Alternative APN	`222-730-001`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	2,967 sqft Living Area
1st Floor Area	1,393 sqft
2nd Floor Area	1,574 sqft

Exterior

Year Built	Built 2016
Effective Year Built	Effective 2017
Architectural Style	Cluster
Lot Area	7,122 sqft (0.164 acres)
Garage Type	Attached
Garage Area	420 sqft
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	536 HYACINTHUS CT
City	SAN RAMON
State	CA
Zip	94582-5964
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	T9247 L1
Legal Subdivision	GALE RANCH SUB 9247
Legal Tract	9247
Legal Lot Number	1
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	TASSAJARA
Census Block Group	3
Census Block	3016
Census Tract	355115

Owner

Source: Contra Costa County records, as of July 14, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on Record
Mailing Address	536 HYACINTHUS CT, SAN RAMON, CA 94582-5964
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
May 29, 2019	Deed of Trust, Mortgage BANK OF AMERICA
Feb 27, 2017	Grant Deed, Subdivision Related Transfer · ARM EAST WEST BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Feb 27, 2017 · Amount on Record
Deed Sale	Feb 27, 2017 · Amount on Record
Deed Document Number	201735263
Record Updated	Sep 20, 2026

May 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CONTRA COSTA CA
Property Address	536 HYACINTHUS CT, SAN RAMON, CA 94582-5964
Document Number	0000084137
Instrument Date	May 29, 2019
Transaction Type	Mortgage
Record Updated	Jun 17, 2019
Title Company	SERVICELINK

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	536 HYACINTHUS CT SAN RAMON CA 945825964, SAN RAMON, CA 94582-5964

Mortgage

Document Number	0000084137
Date	Jun 6, 2019
Instrument	84137

Lender

Name	BANK OF AMERICA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Jun 5, 2049

February 2017: Grant Deed, Subdivision Related Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Feb 27, 2017
Property Address	536 HYACINTHUS CT, SAN RAMON, CA 94582-5964
Document Number	0000035263
Map Reference	MAP522 PG19-29
Instrument Date	Feb 1, 2017
Instrument	2017-035263
Transaction Type	Subdivision Related Transfer
Record Updated	Nov 3, 2022
Title Company	WESTMINSTER TITLE SAN RAMON

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Calculated from Transfer Tax
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	536 HYACINTHUS CT, SAN RAMON, CA 94582-5964
Mail Care Of	CUIYUN GUO

Mortgage

Document Number	0000035264
Date	Feb 27, 2017
Instrument	2017-035264

Lender

Name	EAST WEST BANK
Type	Bank

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Mar 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	4.37%
Adjustable	Adjustable Rate Rider
Type Change Date	Mar 1, 2020
Change Frequency	Annually
Min Rate At Change	3.25%
Max Rate At Change	6.37%
Index	1-Year CMT
Max Rate	10.3%

Tax Assessment & Valuation

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	San Ramon City
Unified School District	San Ramon Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,689,388 (+2%) Land $1,065,414 Building $623,974
2025	$21,115.00 (+4.03%) Homeowner's exemption	$1,656,264 (+4.04%) Land $1,044,524 Building $611,740
2023	$20,298.00 (+1.25%) Homeowner's exemption	$1,591,952 Land $1,003,965 Building $587,987
2022	$20,048.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 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	Low lower than 62% of the US · lower than 77% of California
Wildfire Likelihood	0.06% 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	DUBLIN SAN RAMON SERVICES DISTRICT serves 98,776 people · EPA ID CA0110009
Water Source	Purchased surface water from ZONE 7 WATER AGENCY
Last State Inspection	Sep 2024
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	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 60 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable · Fiber in parts of the area	2,000 / 250
Unwired Fixed Wireless	300 / 25
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: Sail Internet, Verizon.

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