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Property profile & analytics
FOR SALE
Office buildings
3687 Mt Diablo Blvd Lafayette, CA 94549
Entity Owned
4-yr Hold
~
Est. High Equity
Property ID
US09-0221316
For Sale
1 / 15
$10,640,000
3687 Mt Diablo Blvd, Lafayette, CA 94549
View Listing →
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1983
Total area
27,250 SF
Lot
0.9 ac (39,204 SF)
APN
241-050-022-3
UPID
US09-0221316
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
$11.58M
CAP Approach
CAP
$8.09M
Comparable Approach
Comparable
$9.97M
Blend (final)
Blend
$10.64M
Owner & transaction history
Trans Bay Cable LLC · 4 yrs held
Trans Bay Cable LLC
since 2021
Last sale
$10.5M
7 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Restaurant
$11.9M
+27.2%
Medical building
$9.9M
+5.7%
Commercial (general)
$9.5M
+1.3%
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 Lafayette submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Lafayette 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
$13,795,000
ML approach
$11,580,000
CAP Approach
CAP Return
Estimation
6%
$8,760,000
6.5%
$8,085,000
7%
$7,510,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$9,370,000
Current use
RESTAURANT
$11,915,000
Change: +27% · Conversion: Moderate
MEDICAL BUILDING
$9,895,000
Change: +6% · Conversion: Easy
COMMERCIAL (GENERAL)
$9,485,000
Change: +1% · Conversion: Easy
Blend value · Realmo final
$10.64M
Range $9.58M – $11.70M · ±10% · vs last sale $10.50M (Nov 24 2021)
Last sale anchor
$10.50M
Nov 24 2021
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
$390 / 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
$113,751
Tax year 2024
Assessed value
$9,674,000
Assessed 2024
Previous assessed
$9,674,000
+0.0% YoY
Effective rate
1.18%
On assessed value
Assessed land
$4,146,000
Assessed improvement
$5,528,000
Applied tax rate
14.0000
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
For Sale
Year built
1983
Heating
NONE
Stories
1
Total area
27,250 SF
Lot
0.9 ac (39,204 SF)
APN
241-050-022-3
UPID
US09-0221316
Jurisdiction
CONTRA COSTA
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
$9.4M
RESTAURANT
Est. value
$11.9M
MEDICAL BUILDING
Est. value
$9.9M
COMMERCIAL (GENERAL)
Est. value
$9.5M
OFFICE BUILDING Current
RESTAURANT
MEDICAL BUILDING
COMMERCIAL (GENERAL)
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
1983
Heating
NONE
Stories
1
Lot
0.9 ac
Current owner
From public records · entity-resolved
Trans Bay Cable LLC
Entity
Mailing address
PO BOX 666, PITTSBURG, CA 94565-0066
Ownership since
2021
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
Nov 24, 2021
$10,500,000
Trans Bay Cable LLC
Bnsn LLC
Grant Deed
—
Jan 18, 2005
—
Bnsn LLC
Desco Plaza II
Grant Deed
$2,930,000 · Morgan Stanley Mortgage Capital INC
Nov 6, 1992
—
Prudential Insurance Co America
Wt Service Corp
Trustees Deed
related
—
Jun 13, 1990
—
Black Horse Inve
—
Quit Claim Deed
related
$3,450,000 · Prudential Insurance Of Americ
Feb 20, 1985
$131,000
Black Horse Investors
White Horse Investors
Grant Deed
—
—
—
Bnsn LLC|ckjk LLC
—
Deed Of Trust
related
$3,200,000 · California Bk&tr
—
—
White Horse Investors LP
—
Deed Of Trust
related
$65,000 · Argent Mortgage Investment Co
—
—
Desco Plaza
—
Deed Of Trust
related
$1,755,000 · Prudential Insurance Of Americ
—
—
Plaza Desco II
—
Deed Of Trust
related
$3,450,000 · Wells Fargo 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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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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