Realmo Analytics
Unlock property reports, ownership, financials, or compile property list owners likely to sell.
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Entity Owned 
For Lease
Property summary
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.
Ownership intelligence
Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. Included with a plan.
Owner contacts
Skip-traced phones and e-mails of the owner. Included with a plan.
Debts
Recorded lenders, amounts and estimated maturities of the owner's loan book — included with a plan.
Property tax · 2024
Value estimate
· Oct 2026Realmo valuation models over county records and 9 qualifying comparable sales.
Recently sold
Cap rate analysis
Price anchors at 6 / 6.5 / 7% — in the full report.
Zoning insight
Location intelligence
Demand index: how under-served this business type is around this point — modeled from the LocInt grid (area demand vs. what already operates, adjusted by real visit traffic). Higher means stronger unmet demand.
Location
Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.
Comparables
5 recorded sales · 17 properties nearbyComparable nearby
Similar in This City for Sale
Similar Nearby for Lease
Instant AI valuation built from comps, income signals, and proprietary benchmarks.A defensible range, not a single guess.
from $199/month
- GBA
- 58,000 SF
- Lot area
- 0.7 ac
- Year built
- 1998
- Stories
- 2
- APN
- 165-26-009
- Zoning
- PPSPI
- Assessed value · 2024
- $9,951,897
- Annual tax · 2024
- $115,395
- Estimated market rent / SF
- Potential gross income
- Vacancy allowance
- Effective gross income
- Benchmark operating expenses
- Stabilized NOI
- Property tax · 2024
- $115,395
- Selected cap rate
Cap rate calculated from real income and expense signals, benchmarked against sales of similar assets nearby.
from $199/month
Price sensitivity
The rate is the decision lever; valuation is the consequence.
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
Registration is required before the official district profile is shown.
Unlock the evidence behind ownership: portfolio, transactions, debt and any signals we can model, to help you decide who to contact next.
Registration is required before any owner information is shown.
Phones and e-mails of the people behind this property's owner, traced from licensed contact data.
Owner phones and e-mails come with a plan - traced from licensed contact data, with verification and Do-Not-Call flags on every number.
The mortgage data comes with a plan: recorded loans of the owner - lender, amount, rate and the estimated maturity - as part of the Ownership Intelligence workspace.
Registration is required before any owner information is shown.
Rey answers here. ChatGPT, Grok and Claude get the same data packet.
Includes: Price & PSF · Cap rate · Location · Zoning
Our comps and market reports get this label in your Google results.
One click on Google
- 10 Targeted Leads
- 1 Full Property Report
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
-
Zoning Insight— not in this plan -
Location Analytics— not in this plan
- 300 Targeted Leads a month
- 30 Full Property Reports
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
- Zoning Insight
-
Location Analytics— not in this plan
- 1,500 Targeted Leads a month
- 150 Full Property Reports
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
- Zoning Insight
- Location Analytics
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Sample leads
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Off Market
1201, CAPTAINS BAY RD, AK
Absentee
1201, CAPTAINS BAY RD, AK
-
Off Market
AK
Absentee
AK
-
Off Market
W, BROADWAY, AK
Absentee
W, BROADWAY, AK
-
Off Market
551 W, BROADWAY, AK
Absentee
551 W, BROADWAY, AK
Sample leads
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Off Market
1404, ATS, AK
Loan from 20067.7% rateColumbia State Bank
1404, ATS, AK
-
Off Market
1503, BALLYHOO RD, AK
Loan from 2009Columbia State Bank
1503, BALLYHOO RD, AK
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Off Market
721 E, DEPOT DR, AK
Loan from 2019Northrim Bank
721 E, DEPOT DR, AK
-
Off Market
AK
Loan from 2019Northrim Bk
AK
Still being built. It lands here next, beside the two above.
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