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Property profile & analytics
OFF-MARKET
Estimated value
$5,225,000
Office buildings
100 B St Santa Rosa, CA 95401-6429
Entity Owned
1-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US10-2647272
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING (MULTI-STORY)
Year built
1988
Construction
TILT-UP CONCRETE
Total area
48,870 SF
Lot
0.31 ac (13,503 SF)
APN
010-066-017-000
UPID
US10-2647272
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
-
Dickenson Peatman & Fogarty Law Firm
-
James V. Sansone - Carle Mackie Power & Ross Law Firm
-
Wildfire Trial Lawyers Consultant
-
John Hensley - Tri Counties Bank, Mortgage Loan Service Bank
-
Donohoe Co Real Estate Agency
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$7.10M
Blend (final)
Blend
$5.23M
Owner & transaction history
North Bay Realty Holdings LP · 1 yrs held
North Bay Realty Holdings LP
since 2025
7 recorded transactions
Zoning & alternative use
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 Santa Rosa submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Santa Rosa 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
by Request
ML approach
by Request
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Blend value · Realmo final
$5.23M
Range $4.70M – $5.75M · ±10%
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
$107 / 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
$49,359
Tax year 2024
Assessed value
$3,605,471
Assessed 2024
Previous assessed
$3,605,471
+0.0% YoY
Effective rate
1.37%
On assessed value
Assessed land
$961,456
Assessed improvement
$2,644,015
Applied tax rate
4.0000
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 (MULTI-STORY)
Status
Off-Market
Year built
1988
Construction
TILT-UP CONCRETE
Heating
CENTRAL
Cooling
YES
Stories
4
Total area
48,870 SF
Lot
0.31 ac (13,503 SF)
APN
010-066-017-000
UPID
US10-2647272
Jurisdiction
SONOMA
Zoning & alternative use
Zoning · permitted uses
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Building & site characteristics
From public records
Year built
1988
Construction
TILT-UP CONCRETE
Heating
CENTRAL
Cooling
Yes
Stories
4
Lot
0.31 ac
Current owner
From public records · entity-resolved
North Bay Realty Holdings LP
Entity
Mailing address
1304 SOUTHPOINT BLVD STE #280, PETALUMA, CA 94954-7464
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
10 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jun 2, 2025
—
North Bay Realty Holdings LP
North Bay Realty Holdings LP
Deed
related
—
Jun 2, 2022
—
North Bay Realty Holdings LLC
—
Deed
related
$50,000,000 · City National Bank
Apr 27, 2017
—
North Bay Realty Holdings LLC
North Bay Realty Holdings LLC
Quit Claim Deed
related
$29,702,275 · Farmers & Merchants Bk/ctrl Ca
May 29, 2014
—
Hilltop Medical Center LLC
Sonya Valentina LLC
Grant Deed
$14,435,000 · Farmers & Merchants Bank Of Central
Mar 2, 1999
—
Sonya Valentina LLC
Mercer Properties Corp
Grant Deed
$656,965 · Brenda Rachway Corp
Nov 24, 1998
—
Mercer Properties Corp
First & Santa Rosa
Grant Deed
related
—
—
—
Sonya Valentina LLC
—
Deed Of Trust
related
$46,000,000 · Northwestern Mutual Life Ins
—
—
Sonya Valentina LLC
—
Deed Of Trust
related
$4,400,000 · Sterling Savings Bank
—
—
First Ro
—
Deed Of Trust
related
$5,500,000 · New York Life Insurance
—
—
Sonya Valentina LLC
—
Deed Of Trust
related
$4,150,000 · Union Bank Of California
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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