4307 20th St, San Francisco, CA 94114 Property Records

San Francisco City property record for 4307 20th St, San Francisco, CA 94114

Property Summary

Property Type	Apartments (5+ Units)
Details	3 bd · 4 ba · 2,934 sqft · built 1915
Lot Size	0.001 acres (24 sqft)
Owner	Company Name on Record
Last Sale	$2,800,000 (Oct 2017)
Tax Bill	$43,691 (2025)
Deeds & Mortgages	Oct 2019 Transfer Oct 2017 Sale
APN	`2751-026`

Property Details

APN / Parcel Number

Primary APN	`2751-026`

Interior

Bedrooms	3 Beds
Full Baths	4 Baths
Total Rooms	9 Rooms
Units	4 Units
Stories	4 Stories
Building Area	2,934 sqft Living Area
1st Floor Area	2,934 sqft

Exterior

Year Built	Built 1915
Effective Year Built	Effective 1915
Architectural Style	Duplex Single
Construction Type	Frame
Lot Area	24 sqft (0.001 acres)
Lot Dimensions	97.5 ft deep x 25 ft wide

Location & Zoning

Street Address	4307 20TH ST
City	SAN FRANCISCO
State	CA
Zip	94114-2816
Property Category	Residential
Property Type	Residential > Multi-Unit > Apartments (5+ Units)
Local Zoning Code	RH3
Legal Subdivision	PORTION OF HORNERS ADDITION
Legal Block	2751
Legal Lot Number	26
Jurisdiction	SAN FRANCISCO CA
Township / Civil Division	WESTERN ADDITION-BUENA VISTA-EUREKA VALLEY
Census Block Group	3
Census Block	3004
Census Tract	20500

Owner

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

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

Owner of Record	Company Name on Record
Mailing Address	4307 20TH ST, SAN FRANCISCO, CA 94114-2816
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Oct 2, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY
Oct 27, 2017	Grant Deed, Transfer FIRST AMERICAN TITLE

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 27, 2017 · Amount on Record
Deed Sale	Oct 27, 2017 · Amount on Record
Deed Document Number	2017532288
Prior Transfer Date	Jan 6, 2011
Prior Transfer Doc	K310/0083
Record Updated	Oct 29, 2026

October 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN FRANCISCO CA
Recording Date	Oct 2, 2019
Property Address	4307-4309 20TH ST, SAN FRANCISCO, CA 94114
Document Number	0K83900298
Instrument Date	Sep 30, 2019
Instrument	K839298
Transaction Type	Transfer
Record Updated	Oct 15, 2019
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	4307 20TH ST #4309 SAN FRANCISCO CA 941142816, 4309, SAN FRANCISCO, CA 94114-2816

October 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN FRANCISCO CA
Recording Date	Oct 27, 2017
Property Address	4307-4309 20TH ST, SAN FRANCISCO, CA 94114
Document Number	0K53200288
Instrument Date	Oct 19, 2017
Instrument	K532288
Transaction Type	Transfer
Record Updated	Nov 28, 2017
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Tax	$21,000.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	4307 20TH ST SAN FRANCISCO CA 941142816, SAN FRANCISCO, CA 94114-2816

Tax Assessment & Valuation

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		$3,705,637 (+2%) Land $2,274,756 Building $1,430,881
2025	$43,691.00 (+2.97%) Homeowner's exemption	$3,632,959 (+4.04%) Land $2,230,143 Building $1,402,816
2024	$42,430.00 (+1.49%)
2023	$41,807.00 (+1.88%) Homeowner's exemption	$3,491,890 Land $2,143,545 Building $1,348,345
2022	$41,037.00

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

Flood

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

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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