Located in Thomas Ranch, one of San Ramon's destination neighborhoods, the home is 3780+/- SF and is on a .22 AC lot. It is bathed in natural light. The open floor plan & soaring ceilings create a tremendous sense of volume. The floor plan features very spacious public areas, a guest bedroom and adjacent full bath downstairs, & 3 beds, laundry, and a media/bonus room upstairs. The kitchen is elegantly appointed with a built-in SubZero fridge, 5 burner gas cooktop, commercial ventilation hood, walk-in pantry, built-in desk, and abundant prep and storage space in the stone countertops and built-in cabinetry. Work from home desk stations are incorporated into the landing upstairs and in the media room. The media room, family room, and master bedroom are wired for sound. The rear yard features hardscape entertaining areas, built in grill, and a trellis covered in wisteria - stunning when in bloom. Close to I680/580, Biz Parks, Shopping, and amazing SRVUSD schools.620cobblestone.com
bridgeMLS, Bay East AOR, or Contra Costa AOR #40905440
Jun 23, 2020
Sold
$1,530,000
$405/sq ft
May 22, 2020
Pending
—
May 20, 2020
Listed
$1,525,000
$403/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40000872
Apr 15, 2004
Sold
$1,240,000
$328/sq ft
Mar 15, 2004
Listing Removed
—
Mar 5, 2004
Listed
$1,245,000
$329/sq ft
Former model. Entertainers dream, media, bonus room w/$10K HDTV. Spacious island kitchen w/slab granite counters. Cherry cabinets, sub-zero frig. 5 burner gas range. For a virtual tour, click on Circlepix tour link above.
bridgeMLS, Bay East AOR, or Contra Costa AOR #11221334
Mar 8, 2004
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #11065283
Sep 29, 2000
Sold
$1,010,990
$267/sq ft
Sep 7, 2000
Listing Removed
—
Aug 29, 2000
Listed
$1,010,990
$267/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$19,245 (+2.1%)
$976,076 + $730,661
$1,706,737
2024
$18,849 (+1.6%)
$956,938 + $716,335
$1,673,273
2023
$18,547 (+0.8%)
$938,175 + $702,290
$1,640,465
2022
$18,396 (+2.2%)
$919,780 + $688,520
$1,608,300
2021
$18,000 (−1.2%)
$901,746 + $675,020
$1,576,766
2020
$18,220 (+0.8%)
$884,065 + $661,785
$1,545,850
2019
$18,070 (+10.6%)
$782,683 + $780,817
$1,563,500
2018
$16,338 (+4.2%)
$769,918 + $768,082
$1,538,000
2017
$15,686 (+3.1%)
$690,573 + $688,927
$1,379,500
2016
$15,216 (+4.8%)
$690,573 + $688,927
$1,379,500
2015
$14,513 (+3.8%)
$663,791 + $662,209
$1,326,000
2014
$13,986 (+10.8%)
$605,085 + $597,915
$1,203,000
2013
$12,620 (+12.8%)
$605,085 + $597,915
$1,203,000
2012
$11,184 (−2.8%)
$546,991 + $540,509
$1,087,500
2011
$11,511 (+0.5%)
$487,136 + $481,364
$968,500
2010
$11,450 (−5.4%)
$502,226 + $496,274
$998,500
2009
$12,105 (−6.3%)
$502,226 + $496,274
$998,500
2008
$12,916
$533,159 + $526,841
$1,060,000
Tax history for 620 Cobblestone Dr
Year
Property tax
Land + Additions
Assessment*
2025
$19,245 (+2.1%)
$976,076 + $730,661
$1,706,737
2024
$18,849 (+1.6%)
$956,938 + $716,335
$1,673,273
2023
$18,547 (+0.8%)
$938,175 + $702,290
$1,640,465
2022
$18,396 (+2.2%)
$919,780 + $688,520
$1,608,300
2021
$18,000 (−1.2%)
$901,746 + $675,020
$1,576,766
2020
$18,220 (+0.8%)
$884,065 + $661,785
$1,545,850
2019
$18,070 (+10.6%)
$782,683 + $780,817
$1,563,500
2018
$16,338 (+4.2%)
$769,918 + $768,082
$1,538,000
2017
$15,686 (+3.1%)
$690,573 + $688,927
$1,379,500
2016
$15,216 (+4.8%)
$690,573 + $688,927
$1,379,500
2015
$14,513 (+3.8%)
$663,791 + $662,209
$1,326,000
2014
$13,986 (+10.8%)
$605,085 + $597,915
$1,203,000
2013
$12,620 (+12.8%)
$605,085 + $597,915
$1,203,000
2012
$11,184 (−2.8%)
$546,991 + $540,509
$1,087,500
2011
$11,511 (+0.5%)
$487,136 + $481,364
$968,500
2010
$11,450 (−5.4%)
$502,226 + $496,274
$998,500
2009
$12,105 (−6.3%)
$502,226 + $496,274
$998,500
2008
$12,916
$533,159 + $526,841
$1,060,000
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Permits
Beds
4
Baths
4
Stories
2
Lot width
—
Lot depth
—
Lot size
9,587 Sq. Ft.
Year renovated
2000
Sq. Ft.
3,780
Year built
2000
Style
Single Family Residential
County
Contra Costa County
APN
2099300150
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
PD
Planned Development Zone
The PD zone is applied to large parcels of land in order to reduce or eliminate the rigidity, delays, and conflicts that otherwise would result from application of zoning standards and procedures designed primarily for small parcels, and to: Ensure orderly and thorough planning and review procedures that will result in quality urban design; Encourage variety and avoid monotony in large developments by allowing greater freedom in selecting the means to provide access, light, open space, and amenity; Provide a mechanism whereby the City may authorize desirable developments consistent with the General Plan without inviting speculative rezoning applications, which, if granted, often could deprive other owners of development opportunities without resulting in construction of the proposed facilities; Encourage allocation and improvement of common open space in residential areas, and provide for open space maintenance at the expense of those who will directly benefit from it; and Encourage the assembly of properties that might otherwise be developed in unrelated increments to the detriment of surrounding neighborhoods. Building intensity may be up to the maximum required by the General Plan land use classification applicable to the site. The PD zone is consistent with and implements all land use classifications of the General Plan.
Dec 15, 2014 • Final
Alteration, remodel, repair - building residential
Remodel
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Parking
Parking Information
Has Attached Garage
Garage Spaces: 3
Covered Spaces: 3
Parking Features: Attached
Interior
Virtual Tour
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 3
Other Bathrooms Included Features: Shower Over Tub, Tile
Primary Bathroom Included Features: Split Bath, Tile
Interior Features
Interior Features: Media, Breakfast Bar, Stone Counters, Eat-in Kitchen, Pantry
Appliances: Dishwasher, Disposal, Gas Range, Plumbed For Ice Maker, Oven, Range, Refrigerator, Gas Water Heater
Laundry Features: Laundry Room
Street Level Features: 1 Bedroom, 1 Bath, No Steps to Entry, Main Entry
Exterior Features: Back Yard, Front Yard, Sprinklers Back, Sprinklers Front
Fencing: Fenced
Property Information
Living Area: 3780
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 2000
Lot Information
Lot Size Square Feet: 9587
Lot Size Area: 0.22
Lot Size Units: Acres
Lot Size Acres: 0.22
Lot Features: Corner Lot
Utilities
Utility Information
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Zoned, Natural Gas
Cooling: Zoned
Location
Homeowners Association Information
Has Association
Association Amenities: Playground
Association Fee: $93
Association Fee Includes: Common Area Maint
Association Fee Frequency: Monthly
Public facts
Beds: 4
Baths: 4.0
Sq. Ft.: 3,780
Stories: 2.0
Lot Size: 9,587 square feet
Style: Single Family Residential
Year Built: 2000
Year Renovated: 2000
County: Contra Costa County
APN: 2099300150
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Twin Creeks Elementary School
Public K-5 • Assigned • 0.6mi
10/10
Iron Horse Middle School
Public 6-8 • Assigned • 2.1mi
10/10
California High School
Public 9-12 • Assigned • 3.2mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
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Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2020. This data may not match public records. Learn more.