4112 21st St, San Francisco, CA 94114 Property Records

San Francisco City property record for 4112 21st St, San Francisco, CA 94114

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 865 sqft · built 1908
Lot Size	0 acres (18 sqft)
Owner	Individual Name on File
Last Sale	$1,750,000 (May 2021)
Tax Bill	$26,528 (2025)
Deeds & Mortgages	May 2021 Transfer May 2021 Sale & Mortgage + 2 more
APN	`2750-016`

Property Details

APN / Parcel Number

Primary APN	`2750-016`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	4 Rooms
Stories	1 Story
Building Area	865 sqft Living Area
1st Floor Area	865 sqft

Exterior

Year Built	Built 1908
Effective Year Built	Effective 1908
Construction Type	Frame
Lot Area	18 sqft

Location & Zoning

Street Address	4112 21ST ST
City	SAN FRANCISCO
State	CA
Zip	94114-2711
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RH2
Legal Subdivision	HORNERS ADD BL #211
Legal Block	2750
Legal Lot Number	16
Jurisdiction	SAN FRANCISCO CA
Township / Civil Division	WESTERN ADDITION-BUENA VISTA-EUREKA VALLEY
Census Block Group	3
Census Block	3003
Census Tract	20500

Owner

4112 21st St is owned by an individual who bought it in May 2021.

Source: San Francisco City records, as of September 8, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Individual Name on File
Mailing Address	2127 25TH AVE, SAN FRANCISCO, CA 94116-1726
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
May 10, 2021	Intrafamily Transfer, Transfer FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY
May 10, 2021	Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Jul 21, 2017	Deed of Trust, Mortgage QUICKEN LNS
Aug 10, 2016	Deed of Trust, Mortgage NGUYEN LIVING TRUST (LT)

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 10, 2021 · Amount on File
Deed Sale	May 10, 2021 · Amount on File
Prior Sale	Aug 11, 2016 · Amount on File
Deed Document Number	202178109
Prior Transfer Date	May 5, 2021
Prior Transfer Doc	2021078111
Record Updated	Oct 29, 2026

May 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN FRANCISCO CA
Recording Date	May 10, 2021
Property Address	4112 21ST ST, SAN FRANCISCO, CA 94114-2711
Document Number	2021078111
Instrument Date	May 5, 2021
Instrument	2021078111
Transaction Type	Transfer
Record Updated	Jun 2, 2021
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

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	4112 21ST ST, SAN FRANCISCO, CA 94114-2711

May 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN FRANCISCO CA
Recording Date	May 10, 2021
Property Address	4112 21ST ST, SAN FRANCISCO, CA 94114-2711
Document Number	2021078109
Instrument Date	Apr 30, 2021
Instrument	2021078109
Transaction Type	Transfer
Record Updated	Jun 2, 2021
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$13,125.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	2127 25TH AVE, SAN FRANCISCO, CA 94116-1726

Mortgage

Document Number	2021078110
Date	May 10, 2021
Instrument	2021078110

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2051

July 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN FRANCISCO CA
Property Address	4112 21ST ST, SAN FRANCISCO, CA 94114-2711
Document Number	0K48900632
Instrument Date	Jul 21, 2017
Transaction Type	Mortgage
Record Updated	Sep 14, 2017
Title Company	TSI TITLE COMPANY/CA INC, TSI TITLE CO/CA INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	4112 21ST ST SAN FRANCISCO CA 941142711, SAN FRANCISCO, CA 94114-2711

Mortgage

Document Number	0K48900632
Date	Aug 1, 2017
Instrument	K489632

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Amount	Amount on Record
Term	360 Months
Due	Jul 31, 2047

Interest

Rate Type	Adjustable Rate
Rate	3%

August 2016: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN FRANCISCO CA
Property Address	4112 21ST ST, SAN FRANCISCO, CA 94114-2711
Document Number	0K41100306
Instrument Date	Aug 10, 2016
Transaction Type	Mortgage
Record Updated	Mar 22, 2017

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	1639 NOTRE DAME DR MOUNTAIN VIEW CA 940403640, MOUNTAIN VIEW, CA 94040-3640

Mortgage

Document Number	0K41100306
Date	Feb 22, 2017
Instrument	K411306

Lender

Name	NGUYEN LIVING TRUST (LT)
Address	WOODSIDE, CA 94061

Agreement

Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 4112 21st St was $26,528, up 3% from the year before.

Source: San Francisco City assessment roll, as of September 8, 2026

Property Jurisdictions

Type	Name
State	California
County / Municipality	San Francisco City
Unified School District	San Francisco Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,932,140 (-11.16%) Land $1,352,498 Building $579,642
2025	$26,528.00 (+2.96%)	$2,174,752 Land $1,325,976 Building $848,776
2024	$25,765.00 (+16.02%)
2023	$22,208.00 (+1.92%)	$1,820,700 Land $1,274,490 Building $546,210
2022	$21,790.00

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

Flood

FEMA has no flood map on file for 4112 21st St; 1 flood insurance policy is in force nearby.

Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Not on file
Nearby Flood Policies	1 in force

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

The area around 4112 21st St has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire Risk	Not rated no burnable land within 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	SFPUC CITY DISTRIBUTION DIVISION serves 848,019 people · EPA ID CA3810011
Water Source	Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State Inspection	Mar 2023
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 1,850 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50
Sonic Telecom Fiber	1,000 / 1,000
Unwired Fixed Wireless	300 / 25
Etheric Networks Fixed Wireless	250 / 100

May also be available: AT&T, GeoLinks, Google Fiber, T-Mobile, Verizon.

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