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Property profile & analytics
OFF-MARKET
Estimated value
$1,555,000
Office buildings
539 Broadway Sonoma, CA 95476-6622
Entity Owned
10-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US09-0014237
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING (MULTI-STORY)
Year built
1978
Construction
WOOD
Total area
4,776 SF
Lot
0.3 ac (13,200 SF)
APN
018-211-005-000
UPID
US09-0014237
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
by Request
CAP Approach
CAP
$1.11M
Comparable Approach
Comparable
$1.78M
Blend (final)
Blend
$1.56M
Owner & transaction history
Mary P LLC · 10 yrs held
Mary P LLC
since 2015
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 Sonoma submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Sonoma 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%
$1,200,000
6.5%
$1,105,000
7%
$1,030,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$2,195,000
Current use
Blend value · Realmo final
$1.56M
Range $1.40M – $1.71M · ±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
$326 / 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
$29,104
Tax year 2024
Assessed value
$2,263,138
Assessed 2024
Previous assessed
$2,263,138
+0.0% YoY
Effective rate
1.29%
On assessed value
Assessed land
$928,467
Assessed improvement
$1,334,671
Applied tax rate
6.0000
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
1978
Construction
WOOD
Heating
CENTRAL
Cooling
YES
Stories
2
Units
4
Total area
4,776 SF
Lot
0.3 ac (13,200 SF)
APN
018-211-005-000
UPID
US09-0014237
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
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$2.2M
OFFICE BUILDING Current
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
1978
Construction
WOOD
Heating
CENTRAL
Cooling
Yes
Stories
2
Units
4
Lot
0.3 ac
Current owner
From public records · entity-resolved
Mary P LLC
Entity
Mailing address
500 BICENTENNIAL WAY STE #310, SANTA ROSA, CA 95403-7436
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2015
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 15, 2022
—
Mary P LLC
—
Deed
related
$1,708,000 · Summit State Bank
Dec 10, 2015
$1,950,000
Mary P LLC
Jerry J Boddum
Grant Deed
$975,000 · Summit State Bank
Feb 15, 2013
$1,250,000
Boddum Jerry J
Muni Mula LLC
Grant Deed
—
Mar 9, 2010
$1,000,000
Muni Mula LLC
Romero Investment LP
Grant Deed
$1,000,000 · Romero Investment LP
Mar 9, 2010
—
Romero Investment LP
Heller S Living Trust
Deed In Lieu Of Foreclosure
related
—
Sep 30, 2004
$1,470,000
Heller Sherial Trust
Romero Investment
Grant Deed
$1,320,000 · Romero Investment LP
May 21, 2004
$418,182
John Bonifini
Mcguirre,lucille
Grant Deed
$450,000 · Residential Mortgage Capital
Jun 5, 2001
—
Romero Trust
Romero,john & Eva M
Quit Claim Deed
related
—
—
—
Jerry J Boddum
—
Deed Of Trust
related
$875,000 · California Commerce Bank
—
—
Muni Mula LLC
—
Deed Of Trust
related
$70,000 · Anderson 2000 Family Trust
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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