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Property profile & analytics
OFF-MARKET
Estimated value
$6,650,000
Retail space
666 Msn St San Francisco, CA 94105
Entity Owned
2-yr Hold
Absentee Owner
Free & Clear
Property ID
US09-6055629
Property profile
Verified
Property type
Retail space
Use group
RETAIL STORES (PERSONAL SERVICES)
Year built
1922
Construction
TILT-UP CONCRETE
Total area
16,310 SF
Lot
0.15 ac (6,695 SF)
Zoning code
C3O
APN
3707 -021
UPID
US09-6055629
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
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$6.65M
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$4.97M
Blend (final)
Blend
$6.65M
Owner & transaction history
Coscinelle LLC · 2 yrs held
Coscinelle LLC
since 2024
Last sale
$6.7M
5 recorded transactions
Zoning & alternative use
C3O · San Francisco, CA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
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
$6,650,000
ML approach
$6,650,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
RETAIL STORES
$8,320,000
Current use
OFFICE BUILDING
$7,820,000
Change: -6% · Conversion: Easy
COMMERCIAL (GENERAL)
$6,975,000
Change: -16% · Conversion: Easy
Blend value · Realmo final
$6.65M
Range $5.99M – $7.32M · ±10% · vs last sale $6.65M (Jun 5 2024)
Last sale anchor
$6.65M
Jun 5 2024
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
$408 / 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
$10,735
Tax year 2024
Assessed value
$3,216,438
Assessed 2024
Previous assessed
$3,216,438
+0.0% YoY
Effective rate
0.33%
On assessed value
Assessed land
$2,298,355
Assessed improvement
$918,083
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
Retail space
Use group
RETAIL STORES (PERSONAL SERVICES)
Status
Off-Market
Year built
1922
Construction
TILT-UP CONCRETE
Heating
NONE
Stories
2
Units
1
Rooms
29
Bathrooms
6
Total area
16,310 SF
Lot
0.15 ac (6,695 SF)
Zoning code
C3O
APN
3707 -021
UPID
US09-6055629
Jurisdiction
SAN FRANCISCO
Metro division
SAN FRANCISCO-SAN MATEO-REDWOOD CITY, CA METROPOLITAN DIVISION
Zoning & alternative use
C3O · San Francisco, CA
Zoning C3O · permitted uses
C3O · 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
RETAIL STORES Current
Est. value
$8.3M
OFFICE BUILDING
Est. value
$7.8M
COMMERCIAL (GENERAL)
Est. value
$7.0M
RETAIL STORES Current
OFFICE BUILDING
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
1922
Construction
TILT-UP CONCRETE
Heating
NONE
Stories
2
Units
1
Rooms
29
Bathrooms
6
Lot
0.15 ac
Current owner
From public records · entity-resolved
Coscinelle LLC
Entity
Free & Clear · 2 yrs held
Mailing address
525 DNA WAY, SOUTH SAN FRANCISCO, CA 94080-4943
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2024
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
5 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jun 5, 2024
$6,650,000
Coscinelle LLC
The California Historical Society
Grant Deed
—
Jun 28, 2021
—
The California Historical Society
The California Historical Society
Intrafamily Transfer
related
$6,440,000 · Clearinghouse Dcfi
May 21, 1993
$2,000,000
California Historical Society
Plack,morris& Tr
Grant Deed
$800,000 · Pacific National Bank
Feb 28, 1991
$2,000,000
Morris Plack
Cunha,i./michael
Grant Deed
$1,550,000 · Pacific National Bank
—
—
California Historical Society
—
Deed Of Trust
related
$500,000 · Summit Savings Bank
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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