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Property profile & analytics
OFF-MARKET
Estimated value
$4,420,000
Office buildings
487 Aviation Blvd Santa Rosa, CA 95403-1069
Entity Owned
3-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US10-3211684
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
2001
Construction
TILT-UP CONCRETE
Total area
27,194 SF
Lot
2.1 ac (91,476 SF)
APN
059-350-096-000
UPID
US10-3211684
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
-
Fresenius Kidney Care Santa Rosa North Medical Clinic
-
Bio-Rad Industrial Manufacturer Production Facility
-
Triformix Inc Industrial Manufacturer Production Facility
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$2.75M
Blend (final)
Blend
$4.42M
Owner & transaction history
487 Aviation LLC · 3 yrs held
487 Aviation LLC
since 2023
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
$4.42M
Range $3.98M – $4.86M · ±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
$163 / 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
$79,457
Tax year 2024
Assessed value
$4,895,000
Assessed 2024
Previous assessed
$4,895,000
+0.0% YoY
Effective rate
1.62%
On assessed value
Assessed land
$1,200,000
Assessed improvement
$3,695,000
Applied tax rate
120.0000
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
2001
Construction
TILT-UP CONCRETE
Heating
NONE
Stories
1
Total area
27,194 SF
Lot
2.1 ac (91,476 SF)
APN
059-350-096-000
UPID
US10-3211684
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
2001
Construction
TILT-UP CONCRETE
Heating
NONE
Stories
1
Lot
2.1 ac
Current owner
From public records · entity-resolved
487 Aviation LLC
Entity
Mailing address
2513 VALDIVIA WAY, BURLINGAME, CA 94010-5433
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2023
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
Jun 30, 2023
—
487 Aviation LLC
—
Deed
related
$3,000,000 · Westamerica Bank
May 25, 2023
—
487 Aviation LLC
Steven T Sager
Grant Deed
—
Dec 29, 2021
—
Steven T Sager
The Rapp Company
Grant Deed
—
Nov 5, 2020
—
1991 Stevien T Sager & K Trust
Rapp Co
Quit Claim Deed
—
Oct 23, 2020
—
Monasch Family Trust
Monasch
Quit Claim Deed
—
Oct 27, 2017
—
The Rapp Company
—
Deed
related
$400,000 · First National Bank Of Northern Calif
Jan 17, 2017
—
The Rapp Company
—
Deed
related
$2,600,000 · First National Bank Of Northern Calif
Dec 21, 2005
$5,400,000
Rapp Co
Rothman,marshal
Grant Deed
$3,300,000 · Greater Bay Bank
Dec 20, 2002
—
Marshal Rothman
Rothman,christine
Quit Claim Deed
related
$3,035,000 · Greater Bay 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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