New search
Property profile & analytics
OFF-MARKET
Estimated value
$750,000
Office buildings
20880 Baker Rd, Castro Valley, CA 94546-5729
Individually Owned
~
Est. High Equity
Property ID
US09-8506979
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1956
Construction
WOOD
Total area
2,976 SF
Lot
0.21 ac (9,100 SF)
APN
84A-17-29-6
UPID
US09-8506979
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
$765k
Comparable Approach
Comparable
$930k
Blend (final)
Blend
$750k
Owner & transaction history
Rubys Place
Rubys Place
since 2025
7 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Auto repair, garage
$1.1M
+14.0%
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 Castro Valley submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Castro Valley 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%
$830,000
6.5%
$765,000
7%
$710,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$965,000
Current use
AUTO REPAIR, GARAGE
$1,100,000
Change: +14% · Conversion: Difficult
RETAIL STORES
$860,000
Change: -11% · Conversion: Moderate
COMMERCIAL (GENERAL)
$820,000
Change: -15% · Conversion: Easy
MEDICAL BUILDING
$795,000
Change: -18% · Conversion: Easy
Blend value · Realmo final
$750k
Range $675k – $825k · ±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
$252 / 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 2023Property tax & assessments
Tax year 2023
Tax billed
$11,870
Tax year 2023
Assessed value
$892,400
Assessed 2024
Previous assessed
$874,904
+2.0% YoY
Effective rate
1.33%
On assessed value
Assessed land
$334,650
Assessed improvement
$557,750
Applied tax rate
54.0000
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
1956
Construction
WOOD
Heating
NONE
Buildings
1
Stories
1
Units
1
Total area
2,976 SF
Lot
0.21 ac (9,100 SF)
APN
84A-17-29-6
UPID
US09-8506979
Jurisdiction
ALAMEDA
Metro division
OAKLAND-FREMONT-HAYWARD, CA METROPOLITAN DIVISION
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
$965,000
AUTO REPAIR, GARAGE
Est. value
$1.1M
RETAIL STORES
Est. value
$860,000
COMMERCIAL (GENERAL)
Est. value
$820,000
MEDICAL BUILDING
Est. value
$795,000
OFFICE BUILDING Current
AUTO REPAIR, GARAGE
RETAIL STORES
COMMERCIAL (GENERAL)
MEDICAL BUILDING
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
1956
Construction
WOOD
Heating
NONE
Stories
1
Buildings
1
Units
1
Lot
0.21 ac
Current owner
From public records · entity-resolved
Rubys Place
Individual
Mailing address
11347 BLOOMINGTON WAY, DUBLIN, CA 94568-3609
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
13 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jul 21, 2025
$1,079,000
Rubys Place
Sammy Aziz Rahmatti
Grant Deed
$750,000 · Fremont Bank
Oct 14, 2022
—
Sammy Aziz Rahmatti
Ras Investment Group INC
Grant Deed
—
Jun 22, 2018
$800,000
Ras Investment Group INC
Thorburn Trust
Grant Deed
$200,000 · Bank Of West
May 23, 2014
—
Thorburn Trust
Thorburn,steven J & Lisa A
Quit Claim Deed
related
—
Aug 31, 2001
$460,000
Steven J Thorburn
Yeandle,gene E
Grant Deed
$230,000 · Wells Fargo Bank
Aug 31, 2001
—
Gene E Yeandle
Yeandle,colleen
Quit Claim Deed
related
—
Jun 22, 1995
$80,000
Gene E Yeandle
Yeandle,john C
Grant Deed
related
—
Dec 14, 1976
—
—
—
Grant Deed
related
—
—
—
Steven J Thorburn
—
Deed Of Trust
related
$465,000 · Union Bank
—
—
Steven J Thorburn
—
Deed Of Trust
related
$474,000 · Self-help Ventures Fund
—
—
Steven J Thorburn
—
Deed Of Trust
related
$40,000 · Robert & Fern Thorburn
—
—
Steven J Thorburn
—
Deed Of Trust
related
$10,000 · Paul & Elva L Lapham
—
—
Steven J Thorburn
—
Deed Of Trust
related
$363,000 · Heritage Bank Of Commerce
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.
Try Rey
Ask anything about this address in plain English.
“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
You own 20880 Baker Rd?
List it free. Reach 20,000 daily buyers.
We’ve already pulled the facts. Confirm photos + price and you’re live in 2 minutes.
List this address →
Full reports are paid
Unlock the full Property Analytics report
Start free for 7 days — no card required. Full owner contacts, all 4 valuations with methodology, refine flow, comparable adjustments, foot-traffic deep dive, export to PDF / CSV.
