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Property profile & analytics
OFF-MARKET
Estimated value
$1,785,000
Office buildings
3641 California St 3643 San Francisco, CA 94118-1701
Entity Owned
1-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US09-6078883
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1950
Construction
WOOD
Total area
3,270 SF
Lot
0.12 ac (5,362 SF)
Zoning code
NCS
APN
1036 -038
UPID
US09-6078883
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
Eileen Aicardi Pediatrician Medical Clinic
-
Dr. William S. Gonda, MD Pediatrician Medical Clinic
-
Allen Eskenazi Pediatrician Medical Clinic
-
Dawn Rosenberg Pediatrician Medical Clinic
-
Mary Piel, M.D. Pediatrician Medical Clinic
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$2.34M
CAP Approach
CAP
$1.32M
Comparable Approach
Comparable
$2.34M
Blend (final)
Blend
$1.79M
Owner & transaction history
3643 California Street Holdings LLC · 1 yrs held
3643 California Street Holdings LLC
since 2025
Last sale
$1.7M
7 recorded transactions
Zoning & alternative use
NCS · San Francisco, CA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Retail stores
$1.7M
+6.4%
Cap rate
Implied · in-place · derived from last sale + estimated NOI
Implied Cap rate
#1
Implied · in-place · NOI ÷ last sale
In-place · derived from last sale + estimated NOI
Cap rate, NOI & submarket benchmark
Implied cap rate vs San Francisco submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs San Francisco submarket · NOI estimate · typical band, median & reading
Refine your cap rate
8-question underwriting flow
1.
Property current status — Going-In vs Stabilized
2.
Price for denominator — asking / offer / market
3.
Leasing status & lease structure (NNN / Gross)
4.
Tenant risk profile & vacancy assumption
5.
Upload T12 / rent roll / OM (optional)
Refine in 60 seconds, get exact suggested price
T12 upload · Submarket benchmarks · Sensitivity grid
Suggested price · 3 cap rate anchors
Income approach @ 5% / 7% / 9% — aggressive / typical / conservative
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · Implied $/SF per anchor · Sensitivity grid
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · implied $/SF · sensitivity
Value
AI, CAP & Alternative Use estimations · Realmo proprietary blendValue Estimations
Based on Realmo’s proprietary methodology
AI Approach
Method
Estimation
Statistic approach
$2,270,000
ML approach
$2,340,000
CAP Approach
CAP Return
Estimation
6%
$1,430,000
6.5%
$1,320,000
7%
$1,230,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$1,565,000
Current use
RETAIL STORES
$1,670,000
Change: +6% · Conversion: Moderate
COMMERCIAL (GENERAL)
$1,375,000
Change: -12% · Conversion: Easy
Blend value · Realmo final
$1.79M
Range $1.61M – $1.96M · ±10% · vs last sale $1.65M (Feb 19 2025)
Last sale anchor
$1.65M
Feb 19 2025
Realmo estimate · informational only.
These numbers are calculated by our models from public records and may not reflect actual market value.
Not an appraisal.
Verify with a licensed appraiser before transacting. Realmo accepts no liability for divergence from real-world outcomes.
View the full estimation — every method, every assumption
Confidence drivers & risk notes · Custom comparable set · Free for first 3 / day
Full estimation methodology
Every method · every assumption · confidence drivers
Price per SF
Sale + rent benchmarks
Subject property
$546 / SF
Submarket sale & rent benchmarks
Median sale $/SF · Asking & closed rent · Submarket vacancy
Submarket sale & rent benchmarks
Median sale $/SF · asking & closed rent · submarket vacancy
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$148,391
Tax year 2024
Assessed value
$12,556,173
Assessed 2024
Previous assessed
$12,556,173
+0.0% YoY
Effective rate
1.18%
On assessed value
Assessed land
$2,338,236
Assessed improvement
$10,217,937
Applied tax rate
1.0000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
Similar Nearby for Lease
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
Recent comparable sales
Sale price & $/SF · sale date & distance · adjustments
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Office buildings
Use group
OFFICE BUILDING
Status
Off-Market
Year built
1950
Construction
WOOD
Heating
NONE
Stories
2
Units
1
Rooms
18
Bathrooms
2
Total area
3,270 SF
Lot
0.12 ac (5,362 SF)
Zoning code
NCS
APN
1036 -038
UPID
US09-6078883
Jurisdiction
SAN FRANCISCO
Metro division
SAN FRANCISCO-SAN MATEO-REDWOOD CITY, CA METROPOLITAN DIVISION
Zoning & alternative use
NCS · San Francisco, CA
Zoning NCS · permitted uses
NCS · San Francisco, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
San Francisco. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$1.6M
RETAIL STORES
Est. value
$1.7M
COMMERCIAL (GENERAL)
Est. value
$1.4M
OFFICE BUILDING Current
RETAIL STORES
COMMERCIAL (GENERAL)
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Alternative use deep dive
Conversion cost · permit path · stabilized NOI per option
Building & site characteristics
From public records
Year built
1950
Construction
WOOD
Heating
NONE
Stories
2
Units
1
Rooms
18
Bathrooms
2
Lot
0.12 ac
Current owner
From public records · entity-resolved
3643 California Street Holdings LLC
Entity
Mailing address
601 VAN NESS AVEE360, SAN FRANCISCO, CA 94102-3200
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2025
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
9 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Mar 6, 2025
$525,000
3643 California Street Holdings LLC
3641 California Street LP
Grant Deed
$315,000 · Bank Of San Francisco
Jul 19, 2022
—
3641 California Street LP
—
Deed
related
$11,460,000 · Bank Of Marin
Jun 23, 2017
$3,425,000
3641 California Street LP
Piel Investments LLC
Grant Deed
—
Dec 21, 2011
—
Piel Investments LLC
Piel John J JR Trust
Quit Claim Deed
related
—
Nov 1, 2011
—
Piel John J JR Trust
Piel Carolyn F Trust
Quit Claim Deed
related
—
May 26, 1999
—
Piel Trust
Piel Trust
Quit Claim Deed
related
—
—
—
Piel J.
—
Deed Of Trust
related
$175,000 · New Horizons Savings & Loan
—
—
Piel Trust
—
Deed Of Trust
related
$300,000 · Capitol Thrift & Loan
—
—
Piel Trust
—
Deed Of Trust
related
$53,000 · New Horizons Savings & Loan
Coming soon
Costs & Benchmarks
Operating expenses, capex projections, utility benchmarks, and submarket comparables — all in one view.
Coming soon
Risks
Flood, climate, environmental, title, and tenant-concentration risk — surfaced with mitigations and source citations.
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