Entity Owned 
For Lease
$950,000
640 West California Ave, Sunnyvale, CA 94086
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Property summary
AI-generated overview
This Class A Sunnyvale office property, located at 640 W California Ave, 94086, offers multiple executive office suites within a six-building complex totaling 58,304 square feet. Built in 2001, the property features two-story buildings with 14-foot ceilings and ample natural light thanks to extensive glass lines. Spaces range from a minimum of 13,028 square feet to a maximum contiguous space of 27,130 square feet, with 40,158 square feet currently vacant. The 0.699-acre lot provides a convenient location, just one block from the Caltrain station and Sunnyvale's downtown amenities. The property boasts modern amenities including a new 6,400 square foot indoor/outdoor fitness center, dramatic lobbies with full-height glass, EV charging stations, and secure bike lockers. The power supply is robust, featuring 2000 amps and 277/480 volts. Parking is readily available at a ratio of 2.6 spaces per 1000 square feet. This exceptional property presents a unique opportunity for businesses seeking high-quality office space in a prime Sunnyvale location, situated in Santa Clara County, near Mathilda Ave. The property is ideal for companies seeking flexible space options within a modern and well-maintained complex.
Property profile
Verified
Property type
Life science properties
Use group
R&D FACILITY, LABS, PHARMA
Year built
1998
Construction
TILT-UP CONCRETE
Total area
58,000 SF
Lot
0.7 ac (30,492 SF)
Zoning code
PPSPI
APN
165-26-009
UPID
US09-2041930
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
Film Production Television Studio
-
General Contractor Construction Company
-
Big Box & Wholesale Store
-
(Bike/Boat/Book/etc) Store Corporate Office
-
Real Estate Agency
Location
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$1.25M
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$661k
Blend (final)
Blend
$950k
Owner & transaction history
since 2017
7 recorded transactions
Zoning & alternative use
PPSPI · Sunnyvale, CA
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
Value estimation
Instant AI valuation built from comps, income signals, and proprietary benchmarks. A defensible range, not a single guess.
Unlock the complete Valuation workflow
Full NOI reconstruction, selected comps, alternative-use scenarios, data audit and PDF export.
Full NOI build-up · 6 steps
Sensitivity value band
Source audit · 6 inputs
PDF export
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Summary
1
Valuation conclusion
Included free
Estimated market value
$950k
Value range
$855k – $1.05M
±10% around blend
Estimated value / SF
$16 / SF
Confidence
Property data
100
Market benchmarks
67
Comparable evidence
60
Income certainty
100
$855k
blend $950k
$1.05M
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
GBA
58,000 SF
Lot area
0.7 ac
Year built
1998
Stories
2
APN
165-26-009
Zoning
PPSPI
Assessed value
$9,951,897
Annual tax
$115,395
3
Income approach: direct capitalization
Partial preview
Estimated Stabilized NOI, derived from market rent, vacancy and expense benchmarks. Actual property income not reported.
Estimated market rent / SF
Potential gross income
Vacancy allowance
Effective gross income
Benchmark operating expenses
Stabilized NOI
Property tax
$115,395
Selected cap rate
4
Sales comparison
Partial preview
Sales approach indication
$661k
Range $661k – $1.24M
Evidence
6 found
Recent peer sales in this city
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$950k
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
Submarket 23 sales
$650
-97%
County 134 sales
$571
-97%
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography; the diamond marks the subject at $16/SF. Delta below average reads as headroom. Source: Realmo CRE sales derivatives (county records).
7
Data & methodology
Included free
Building area
County record
Property tax
County record
Assessed value
County record
Zoning designation
County record
Operating expenses
Modeled
Market rent
Market benchmark
Not analyzed due to unavailable source data: actual rent roll, tenant leases, physical condition and capital
requirements are outside a desktop analysis.
Cost Approach excluded: income and sales evidence cover the value conclusion.
Automated valuation analysis, not a licensed appraisal. Figures are derived from public
records and proprietary models. Desktop analysis: no physical inspection, tenant leases or reported
property income. Verify with a licensed appraiser before transacting.
Cap rate
Cap rate calculated from real income and expense signals, benchmarked against sales of similar assets nearby.
Unlock the complete Cap Rate workflow
Full market tables, editable assumptions, comparable evidence, saved work and exports.
9-scenario matrix
NOI build-up · 9 steps
Market rates by use type
PDF export
Professional Plan · 30 reports
from $99/month
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Overview
No cap rate is computable for this property yet: no recorded sale, income signal or market-rate row for its use type.
Price sensitivity
The rate is the decision lever; valuation is the consequence.
Test a cap rate
Implied value$2.39M
Move the market yield to see immediate price impact.
Value / SF
$41
Vs. selected
Base
Derivation
NOI ÷ cap
Arithmetic over the derived NOI * — not market scenario modeling.
NOI × cap matrix
Preview
Preview of 9 modeled outcomes.
NOI
5.00%7.00%9.00%
$150k
$3.01M
$2.15M
$1.67M
$167k
$3.34M
$2.39M
$1.86M
$184k
$3.67M
$2.62M
$2.04M
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$115,395
Tax year 2024
Assessed value
$9,951,897
Assessed 2024
Previous assessed
$9,951,897
+0.0% YoY
Effective rate
1.16%
On assessed value
Assessed land
$4,285,611
Assessed improvement
$5,666,286
Applied tax rate
9.0000
Automated cap rate analysis. Based on public records, market benchmarks and proprietary
models. Verify with a licensed professional before transacting.
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Life science properties
Use group
R&D FACILITY, LABS, PHARMA
Status
For Lease
Year built
1998
Construction
TILT-UP CONCRETE
Heating
NONE
Cooling
YES
Stories
2
Units
1
Total area
58,000 SF
Lot
0.7 ac (30,492 SF)
Zoning code
PPSPI
APN
165-26-009
UPID
US09-2041930
Jurisdiction
SANTA CLARA
Zoning & alternative use
PPSPI · Sunnyvale, CAZoning PPSPI · permitted uses
PPSPI · Sunnyvale, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Building & site characteristics
From public records
Year built
1998
Construction
TILT-UP CONCRETE
Heating
NONE
Cooling
Yes
Stories
2
Units
1
Lot
0.7 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
County-recorded code
PPSPI
Jurisdiction
Sunnyvale, CA
Recorded code
PPSPI
Zoning Insight
What can be built and operated here — officially.
The district profile from the municipal source: what is on file for PPSPI in Sunnyvale, CA.
What opens after registration
Zoning profile
2 official documentsVerified municipal sources with file download
Match provenanceAssignment basis, match tier and confidence
Private report access
See the official zoning profile for this address.
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Ownership Intelligence
Find the owner behind the property.
Unlock the evidence behind ownership: portfolio, transactions, debt and signals that help you decide who to contact next.
What opens after registration
Ownership report
Owner identityResolved entity and name variants
Portfolio holdingsLinked properties and estimated value
Deal signalsSell-side activity worth following
Debt & historyRecorded loans and transaction history
Private report access
See the ownership record for this address.
Registration is required before any owner information is shown.
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Owner of record and activity signals are derived from public records and modeled classifications.
They do not confirm beneficial ownership or intent to transact.
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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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