| Primary address | 6601 Koll Center Parkway, Pleasanton |
| Zip code | 94566 |
| County | Alameda |
| Neighborhood | Downtown Pleasanton |
| Parcel ID | 946-4557-20-3 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 09/14/2006 |
| Sale price | $15,567,000 |
| Arm's length | Register |
| Property tax | $132,478 |
| Building sqft | 72,921 |
| Building class | One to Five Story Office Building (9400) |
| Acreage | 4.42 |
| Year built | 1988 |
| Stories | 3 |
| Construction type | Wall, floor and roof structures are built of noncombustible materials |
| Elevator | Register |
| Zoning district | Register |
| School district | Pleasanton Unif |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
This One to Five Story Office Building (9400) located at Sycamore Terrace - 6601 Koll Center Parkway, Pleasanton, CA 94566 has a total of 72,921 square feet and a current price per square foot of $213.
What is the year built & the current market value of Sycamore Terrace - 6601 Koll Center Parkway, Pleasanton, CA 94566?Sycamore Terrace - 6601 Koll Center Parkway, Pleasanton, CA 94566 was built in 1988 and has a current tax assessor's market value of $11,328,696.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
| Listing type | For Sale |
|---|---|
| Listing date | 02/19/2026 |
| Last updated | 05/08/2026 |
| Lot size | 4.42 Acre |
Create a free account to view the complete sales history for 6601 Koll Center Parkway, Pleasanton, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 09/14/2006 | $15,567,000 | Register | Register |
To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.
R: Recorded date
D: Document date
Access detailed property tax data for Sycamore Terrace - Sycamore Terrace - 6601 Koll Center Parkway, Pleasanton, CA 94566. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Property tax | $132,478 |
| Market value | $11,328,696 |
Here's the assessment & property tax history for 6601 Koll Center Parkway, Pleasanton, including the evolution of the total tax rate and corresponding property tax.
| Year | Assessment value | Total tax rate | Property tax | Year over year change |
|---|---|---|---|---|
| 2025-2026 | $11,328,696 | 1.1694 | $132,478 | +2.03% |
| 2024-2025 | $11,106,608 | 1.1691 | $129,847 | -23.23% |
| 2023-2024 | $10,888,844 | 1.5534 | $169,147 | +39.11% |
| 2022-2023 | $10,675,404 | 1.139 | $121,593 | +2.62% |
| 2021-2022 | $10,466,104 | 1.1321 | $118,487 | +1.30% |
The complete history of permits filed for 6601 Koll Center Parkway, Pleasanton, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.
Access a detailed real estate market overview of Pleasanton so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Pleasanton and compare it to other neighborhoods in Alameda County.
Check out recently sold homes in Pleasanton and see how their prices compare.
| Total population | 44,222 |
| Median age | 45.1 |
| Average household income | $252,646 |
| Family households | 76.4% |
| Occupied housing units | 15,921 |
| Owner occupied units | 70.6% |
| Average number of people per household | 2.75 |
| Median year structure built | 1982 |
| Median value for units with a mortgage | $1,715,300 |
| Median value for units without a mortgage | $1,514,100 |
Create a free account to unlock extended information for 6601 Koll Center Parkway, Pleasanton, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| FEMA flood zone(s) | X (See more on map) |
| Fire hazard zone | See more on map |
| Faults and tsunami inundation zone map | Register |
| Landslides and liquefaction map | Register |
Access the detailed traffic volume map for 6601 Koll Center Parkway, Pleasanton to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
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Here are the neighbors for Sycamore Terrace - 6601 Koll Center Parkway, Pleasanton.