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Property profile & analytics
OFF-MARKET
Estimated value
$4,520,000
Office buildings
2520 Stanwell Dr Concord, CA 94520-4840
Trust Owned
6-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US10-3000186
Property summary
AI-generated overview
Buchanan Oaks VII offers exceptional executive office space in Concord, CA. This two-story, 24,036 square foot building, constructed in 1978, sits on a 1.8-acre lot at the corner of Stanwell Drive and Bisso Lane, providing convenient access to major freeways, Buchanan Airport, and numerous amenities including The Veranda, Sun Valley Mall, The Willows, downtown Concord, hotels, and restaurants. Currently, 9,086 square feet of space is available, divisible into units as small as 893 square feet and up to a contiguous 6,011 square feet. The building features 79 on-site parking spaces (a ratio of 3.21 per 1,000 square feet), recently renovated common areas, and an on-site deli. The asking rental rate is $1.85 per square foot. The building is equipped with sprinklers. This property presents a unique opportunity for businesses seeking high-quality, conveniently located office space in a well-maintained building with ample parking and nearby conveniences. Multiple tenancy options are available.
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1978
Total area
24,036 SF
Lot
1.8 ac (78,408 SF)
Zoning code
LI
APN
112-260-021-4
UPID
US10-3000186
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
-
Contra Costa Special Education High School
-
Foundry Properties Real Estate Agency
-
Amerasa Freight Service Logistics Company
-
Trihydro Corporation Engineer Engineering Consultant
-
Rent Ready Properties Property Management Company
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$4.86M
CAP Approach
CAP
$3.73M
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$4.52M
Owner & transaction history
Cardenas,patricia 2005 Trust · 6 yrs held
Cardenas,patricia 2005 Trust
since 2020
Last sale
$4.4M
7 recorded transactions
Zoning & alternative use
LI · Concord, CA
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 Concord submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Concord 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
$5,225,000
ML approach
$4,855,000
CAP Approach
CAP Return
Estimation
6%
$4,040,000
6.5%
$3,725,000
7%
$3,460,000
Alternative Use
Use
Estimation
APARTMENT HOUSE (5+ UNITS)
$6,990,000
Change: -13% · Conversion: Easy
Blend value · Realmo final
$4.52M
Range $4.07M – $4.97M · ±10% · vs last sale $4.39M (Mar 6 2020)
Last sale anchor
$4.39M
Mar 6 2020
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
$188 / 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
$50,642
Tax year 2024
Assessed value
$4,323,000
Assessed 2024
Previous assessed
$4,323,000
+0.0% YoY
Effective rate
1.17%
On assessed value
Assessed land
$1,105,800
Assessed improvement
$3,217,200
Applied tax rate
2.0000
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
1978
Heating
NONE
Buildings
3
Stories
1
Units
19
Rooms
19
Total area
24,036 SF
Lot
1.8 ac (78,408 SF)
Zoning code
LI
APN
112-260-021-4
UPID
US10-3000186
Jurisdiction
CONTRA COSTA
Metro division
OAKLAND-FREMONT-HAYWARD, CA METROPOLITAN DIVISION
Zoning & alternative use
LI · Concord, CAZoning LI · permitted uses
LI · Concord, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Source
Concord Municipal Code
Alternative use value scenarios
Repositioning upside vs current use
APARTMENT HOUSE (5+ UNITS)
Est. value
$7.0M
APARTMENT HOUSE (5+ UNITS)
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
Heating
NONE
Stories
1
Buildings
3
Units
19
Rooms
19
Lot
1.8 ac
Current owner
From public records · entity-resolved
Cardenas,patricia 2005 Trust
Trust
Mailing address
8105 EDGEWATER DR STE #115, OAKLAND, CA 94621-2049
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2020
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
7 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Mar 6, 2020
$4,300,000
Cardenas,patricia 2005 Trust
Drian-warren Family Trust
Grant Deed
$3,354,000 · Poppy Bk
Aug 2, 2019
—
Drian-warren Family Trust
Drian,bradley
Quit Claim Deed
related
—
Oct 10, 2014
$4,390,000
Bradley Drian
Spieker Stratmore Stanwell LLC
Grant Deed
$2,900,000 · Opus Bank
Oct 11, 2007
$4,120,000
Spieker Stratmore Stanwell LLC
Fjeld Family
Grant Deed
$3,720,000 · Bank Of Alameda
Sep 22, 1989
—
Oaks Buchanan
Buchanan Oaks
Quit Claim Deed
related
$1,250,000 · Southern California Bank
Aug 31, 1982
$700,000
Buchanan Oak Ltd
Financial Duffel & Const
Grant Deed
related
$1,150,000
Apr 3, 1978
—
Owner Name Unavailable
—
Grant Deed
related
—
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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