NOT LISTED FOR SALE

1338 Filbert St Unit 4 San Francisco, CA 94109

Russian Hill Neighborhood

Estimated Value: $3,823,000 - $3,970,000

3 Beds
3 Baths
3,005 Sq Ft
$1,296/Sq Ft Est. Value

About This Home

This home is located at 1338 Filbert St Unit 4, San Francisco, CA 94109 and is currently estimated at $3,893,126, approximately $1,295 per square foot. 1338 Filbert St Unit 4 is a home located in San Francisco County with nearby schools including Yick Wo Elementary School, Francisco Middle School, and Saint Brigid Academy.

Ownership History

Date Name Owned For Owner Type

Purchase Details

Closed on
Jun 6, 2025
Sold by
Kosmowski Revocable Trust and Kosmowski Eric G
Bought by
Rizk Walid and Farah Maya
Current Estimated Value
$3,893,126

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$2,103,750
Outstanding Balance
$2,093,576
Interest Rate
5%
Mortgage Type
New Conventional
Estimated Equity
$1,799,550

Purchase Details

Closed on
Jun 5, 2023
Sold by
Keiser-Delacey Family Trust
Bought by
Kosmowski Revocable Trust

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$3,000,000
Interest Rate
4.88%
Mortgage Type
New Conventional

Purchase Details

Closed on
Apr 20, 2018
Sold by
1338 Filbert Street Llc
Bought by
1338 Filbert Street Llc

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$2,999,999
Interest Rate
3.75%
Mortgage Type
Adjustable Rate Mortgage/ARM

Purchase Details

Closed on
Apr 2, 2018
Sold by
1338 Filbert Street Llc
Bought by
Keiser John T and Delacey Lisa Paige

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$2,999,999
Interest Rate
3.75%
Mortgage Type
Adjustable Rate Mortgage/ARM

Purchase Details

Closed on
Sep 28, 2013
Sold by
Low David N and Lahaussois Dominique
Bought by
1338 Filbert Llc

Purchase Details

Closed on
Jun 25, 2007
Sold by
Willis John Parker
Bought by
Low David N and Lahaussois Dominique
Source: Public Records

Range of Values:

Collateral Analytics

Collateral Analytics Collateral Analytics AVMs (Automated Valuation Model) employ a number of statistical approaches combined with neighborhood-specific comparable selection guarantees the most up-to-date and precise valuations.

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ICE

ICE Mortgage Technology ICE Mortgage Technology’s AVM (Automated Valuation Model) is a state-of-the-art online residential property valuation tool that provides a quick and accurate estimate of the value of almost any home in the U.S.

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First American

First American First American Data & Analytics’ next-generation AVM combines unrivaled data assets with a blended ensemble of valuation models to produce highly accurate, reliable valuations you can trust.

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Quantarium

Quantarium Quantarium’s valuation service, repeatedly proven the industry’s most accurate and comprehensive, is supercharged with a self-learning and auto-tuning AI engine that continually becomes smarter and more accurate as it processes daily inputs from the industry’s leading RE data lake.

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Average Value
Not Available
List Price
Sold Price
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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

Date Buyer Sale Price Title Company
Rizk Walid -- First American Title
Kosmowski Revocable Trust $4,125,000 First American Title
1338 Filbert Street Llc -- Old Republic Title Co
Keiser John T $4,450,000 Old Republic Title Co
1338 Filbert Llc -- None Available
Low David N $390,000 Stewart Title Bats
Source: Public Records

Mortgage History

Date Status Borrower Loan Amount
Open Rizk Walid $2,103,750
Previous Owner Kosmowski Revocable Trust $3,000,000
Previous Owner Keiser John T $2,999,999
Source: Public Records

Tax History Compared to Growth

Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $49,240 $4,125,000 $2,475,000 $1,650,000
2024 $49,240 $4,125,000 $2,475,000 $1,650,000
2023 $58,092 $4,866,721 $2,920,033 $1,946,688
2022 $57,103 $4,771,296 $2,862,778 $1,908,518
2021 $56,109 $4,677,743 $2,806,646 $1,871,097
2020 $56,308 $4,629,780 $2,777,868 $1,851,912
2019 $54,367 $4,539,000 $2,723,400 $1,815,600
2018 $37,568 $3,163,158 $436,258 $2,726,900
2017 $27,954 $2,344,154 $427,704 $1,916,450
2016 $16,457 $1,358,865 $419,318 $939,547
2015 $12,516 $1,022,253 $413,020 $609,233
2014 $5,425 $426,238 $404,930 $21,308
Source: Public Records

Map

California San Francisco County San Francisco 94109 Russian Hill

1338 Filbert St Unit 4, San Francisco, CA

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