Santa Clara County  »  645 N Mary Ave

645 North Mary Avenue, Sunnyvale, CA 94085 - Property report

Also known as: 910 Benecia Ave

Property image for 645 North Mary Avenue, Sunnyvale, CA 94085
static Mapbox map

Property type

Office Building (SCILSO)

Year built

1974

Acreage

1.29

Sale price

$3,225,000

General Information

Address
Primary address
645 N Mary Ave
Sunnyvale, CA 94085
Alternate address(es)
910 Benecia Ave
Zip code
94085
County
Santa Clara
Municipality
Sunnyvale
Parcel ID
165-40-014

Owner

Find out who owns 645 North Mary Avenue, Sunnyvale, CA 94085. Uncover corporate and individual owners with a free account.

Sales
Sale date
07/09/2010
Sale price
$3,225,000
Arm's length
Tax
Tax year
2025-2026
Property tax
$81,337
Building
Property type
Office Building
Building sq. ft.
19,535
Stories
1
Year built
1974
Lot
Acreage
1.29
Lot sq. ft.
56,192
Zoning & use
Zoning
Units
1

Area overview

Walk score
38 /100.  Car-Dependent
Transit score
40 /100.  Some Transit
Bike score
78 /100.  Very Bikeable
School district
09002
Ownership

Ownership information for 645 North Mary Avenue, Sunnyvale, CA

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 645 North Mary Avenue, Sunnyvale, CA 94085

Sale date Sale price Buyer name Seller name
07/09/2010 $3,225,000 XXXXX XXXXXXXX XXX XXX XXXX XXXXXXX XX XXX

*Most recent sale on record for this property.

More about Santa Clara County property records.

Title documents

Date Type Amount Party 1 Party 2
03/10/2021 Easement XXXXX XXXXXXXX XXX XXXX XX XXXXXXXXX
07/09/2010 Deed XXX XXXX XXXXXXX XX XXX XXXXX XXXXXXXX XXX
05/15/2006 Deed XXXXXXXXX XXXXXX XXXX XXXXXX XXX XXXX XXXXXXX XX XXX
10/12/2001 Deed XXXXX XXXX XXXXXXXXX XX XXXXXXXXX XXXXXX XXXX XXXXXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 645 North Mary Avenue, Sunnyvale, CA

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025-2026
Property tax
$81,337
Recent tax assessments
Market value
$6,934,084
Land value
$3,171,540
Building value
$3,762,544

More about Santa Clara County Property Taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $6,934,084 1.173 $81,337 +3.78%
2024-2025 $6,798,122 1.1529 $78,376 +0.92%
2023-2024 $6,664,827 1.1652 $77,659 +1.66%
2022-2023 $6,534,145 1.1691 $76,391 +1.13%
2021-2022 $6,406,025 1.1792 $75,540 +73.06%
2020-2021 $3,703,920 1.1785 $43,651 +2.34%
2019-2020 $3,631,295 1.1746 $42,653 +2.05%
2018-2019 $3,560,094 1.174 $41,796 +1.31%
2017-2018 $3,490,289 1.182 $41,254 +3.98%
2016-2017 $3,421,853 1.1595 $39,676 -0.61%
Permits

Permit information for 645 North Mary Avenue, Sunnyvale, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
12/01/2025
11/21/2025
11/03/2025
10/23/2025
01/17/2019

*Most recent permits on record for this property.

Neighborhood

Demographics by ZIP code

Total population
24,024
Median age
33
Average household income
$259,833
Family households
55.3%
People per household (average)
2.47
Occupied housing units
9,631
Owner-occupied units
38.0%
Median year structure built
1988
Median value mortgaged units
$1,590,900
Median value unmortgaged units
$1,164,500

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones
X
Landslides and liquefaction map

Fire hazard zones

Faults and tsunami inundation zones map

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 645 North Mary Avenue, Sunnyvale, CA 94085 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Neighbors for 645 North Mary Avenue, Sunnyvale, CA

777 N Pastoria Ave, Sunnyvale 785 N Mary Ave, Sunnyvale 743 N Pastoria Ave, Sunnyvale 580 N Pastoria Ave, Sunnyvale 610 N Pastoria Ave, Sunnyvale 362 Macara Ave, Sunnyvale 815 W Maude Ave, Sunnyvale 605 Macara Ave, Sunnyvale 479 N Pastoria Ave, Sunnyvale 658 N Pastoria Ave, Sunnyvale 995 Benecia Ave, Sunnyvale 975 Benecia Ave, Sunnyvale 1055 Escalon CT, Sunnyvale 367 Macara Ave, Sunnyvale 990 Benecia Ave, Sunnyvale 500 Macara Ave, Sunnyvale 430 Indio Way, Sunnyvale 335 Macara Ave, Sunnyvale 900 Almanor Ave, Sunnyvale 415 Macara Ave, Sunnyvale

Nearby ZIP codes for 645 North Mary Avenue, Sunnyvale, CA

94024, Santa Clara County, CA 94041, Santa Clara County, CA 94043, Santa Clara County, CA 95002, Santa Clara County, CA 95014, Santa Clara County, CA 95117, Santa Clara County, CA 95128, Santa Clara County, CA 95129, Santa Clara County, CA 95130, Santa Clara County, CA 95131, Santa Clara County, CA

Frequently asked questions

What is the year built for 645 North Mary Avenue, Sunnyvale, CA 94085?

The development at 645 North Mary Avenue, Sunnyvale, CA 94085 was built in 1974.

What is the market value of 645 North Mary Avenue, Sunnyvale, CA 94085?

The current market value of 645 North Mary Avenue, Sunnyvale, CA 94085 is $6,934,084.

What is the total square footage of 645 North Mary Avenue, Sunnyvale, CA 94085?

645 North Mary Avenue, Sunnyvale, CA 94085 has a total of 19,535 square feet.

What is the price per square foot for this property?

$165 per square foot is the price for 645 North Mary Avenue, Sunnyvale, CA 94085.

How many commercial spaces does this building have?

The number of commercial spaces in this building is 1.

Disclaimer

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