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Property profile & analytics
FOR LEASE
Office buildings
515 N Whisman Rd Mountain View, CA 94043
Entity Owned
2-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US09-1101950
For Lease
1 / 2
$34,775,000
515 N Whisman Rd, Mountain View, CA 94043
View Listing →
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
2000
Construction
CONCRETE
Total area
76,226 SF
Lot
4.65 ac (202,510 SF)
Zoning code
P-41
APN
160-54-002
UPID
US09-1101950
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
-
Symantec Building G Corporate Office
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
$44.01M
Comparable Approach
Comparable
$21.11M
Blend (final)
Blend
$34.78M
Owner & transaction history
Stonelex A LLC · 2 yrs held
Stonelex A LLC
since 2024
7 recorded transactions
Zoning & alternative use
P-41 · Mountain View, CA
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 Mountain View submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Mountain View 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%
$47,670,000
6.5%
$44,005,000
7%
$40,860,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$51,970,000
Current use
Blend value · Realmo final
$34.78M
Range $31.30M – $38.25M · ±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
$456 / 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
$593,531
Tax year 2024
Assessed value
$50,888,649
Assessed 2024
Previous assessed
$50,888,649
+0.0% YoY
Effective rate
1.17%
On assessed value
Assessed land
$38,682,901
Assessed improvement
$12,205,748
Applied tax rate
5.0000
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 Lease
Year built
2000
Construction
CONCRETE
Heating
NONE
Cooling
YES
Stories
2
Total area
76,226 SF
Lot
4.65 ac (202,510 SF)
Zoning code
P-41
APN
160-54-002
UPID
US09-1101950
Jurisdiction
SANTA CLARA
Zoning & alternative use
P-41 · Mountain View, CA
Zoning P-41 · permitted uses
P-41 · Mountain View, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Mountain View. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$52.0M
OFFICE BUILDING Current
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
2000
Construction
CONCRETE
Heating
NONE
Cooling
Yes
Stories
2
Lot
4.65 ac
Current owner
From public records · entity-resolved
Stonelex A LLC
Entity
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2024
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
8 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Mar 20, 2024
—
Stonelex A LLC
Parlex 2a Finco LLC
Grant Deed
—
Mar 19, 2024
$95,577,539
Parlex 2a Finco LLC
Sw Whisman Mv LLC
Deed In Lieu Of Foreclosure
related
—
Apr 2, 2021
$100,500,000
Sw Whisman Mv LLC
Nortonlifelock INC
Grant Deed
$102,060,000 · Parlex 2a Finco LLC
Dec 27, 2005
—
Symantec Corp
Whisman Ventures LLC
Grant Deed
—
Nov 21, 2000
—
Whisman Ventures LLC
—
Deed Of Trust
related
$37,500,000 · Teachers Insurance & Annuity
Nov 19, 1999
—
Whismam Ventures LLC
California Institute Technolog
Grant Deed
$35,319,349 · Key Bank NA
—
—
Whisman Ventures LLC
—
Deed Of Trust
related
$500,000 · Key Bank NA
—
—
Whisman Ventures LLC
—
Deed Of Trust
related
$2,500,000 · Key Bank NA
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
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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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