Executive 5 Bed & 4 Bath + Loft home! Separate Casita w/ full bath & kitchenette.Premium Corner Lot w/ views of Mt. Diablo.Gourmet kitchen w/ Italian slab granite countertops, island & stainless steel appliances.Formal living/dining room opens to private courtyard.Spacious master suite.A must see!!
Single-familyProperty Type
2004Year Built
10,440 sq ftLot Size
$661Est. Price/Sq.Ft.
3 car garageParking
Listed by Joe Frazzano•DRE #00982431• J. Rockcliff, REALTORS?
Listed by Alex Tse•DRE #01386010• J. Rockcliff, REALTORS?
Bought with Jean Duboise-metz•DRE #01321909• J. Rockcliff Realtors Inc.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40265283
Jun 18, 2007
Listing Removed
—
Jun 14, 2007
Sold
$1,180,000
$321/sq ft
May 25, 2007
Contingent
—
May 8, 2007
Listed
$1,199,950
$327/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40257403
Apr 17, 2007
Listing Removed
—
Apr 13, 2007
Listed
*
Year
Property tax
Land + Additions
Assessment*
2025
$24,440 (−0.9%)
$706,517 + $969,409
$1,675,926
2024
$24,649 (+1.1%)
$692,664 + $950,401
$1,643,065
2023
$24,380 (+2.2%)
$679,083 + $931,766
$1,610,849
2022
$23,855 (+1.7%)
$665,768 + $913,497
$1,579,265
2021
$23,455 (+2.4%)
$652,714 + $895,586
$1,548,300
2020
$22,906 (+5.0%)
$639,916 + $878,026
$1,517,942
2019
$21,818 (+1.6%)
$633,355 + $869,023
$1,502,378
2018
$21,478 (−0.7%)
$579,657 + $795,343
$1,375,000
2017
$21,629 (+0.2%)
$572,069 + $784,931
$1,357,000
2016
$21,587 (+6.5%)
$572,069 + $784,931
$1,357,000
2015
$20,261 (+8.3%)
$571,647 + $784,353
$1,356,000
2014
$18,716 (+11.5%)
$465,201 + $638,299
$1,103,500
2013
$16,784 (+7.3%)
$465,201 + $638,299
$1,103,500
2012
$15,635 (+0.6%)
$391,426 + $537,074
$928,500
2011
$15,544 (+0.6%)
$354,118 + $485,882
$840,000
2010
$15,455 (−1.0%)
$354,118 + $485,882
$840,000
2009
$15,605 (−8.8%)
$354,118 + $485,882
$840,000
2008
$17,102
$360,886 + $489,114
$850,000
Tax history for 100 Avalon Ct
Year
Property tax
Land + Additions
Assessment*
2025
$24,440 (−0.9%)
$706,517 + $969,409
$1,675,926
2024
$24,649 (+1.1%)
$692,664 + $950,401
$1,643,065
2023
$24,380 (+2.2%)
$679,083 + $931,766
$1,610,849
2022
$23,855 (+1.7%)
$665,768 + $913,497
$1,579,265
2021
$23,455 (+2.4%)
$652,714 + $895,586
$1,548,300
2020
$22,906 (+5.0%)
$639,916 + $878,026
$1,517,942
2019
$21,818 (+1.6%)
$633,355 + $869,023
$1,502,378
2018
$21,478 (−0.7%)
$579,657 + $795,343
$1,375,000
2017
$21,629 (+0.2%)
$572,069 + $784,931
$1,357,000
2016
$21,587 (+6.5%)
$572,069 + $784,931
$1,357,000
2015
$20,261 (+8.3%)
$571,647 + $784,353
$1,356,000
2014
$18,716 (+11.5%)
$465,201 + $638,299
$1,103,500
2013
$16,784 (+7.3%)
$465,201 + $638,299
$1,103,500
2012
$15,635 (+0.6%)
$391,426 + $537,074
$928,500
2011
$15,544 (+0.6%)
$354,118 + $485,882
$840,000
2010
$15,455 (−1.0%)
$354,118 + $485,882
$840,000
2009
$15,605 (−8.8%)
$354,118 + $485,882
$840,000
2008
$17,102
$360,886 + $489,114
$850,000
*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
5
Baths
4
Stories
2
Lot width
—
Lot depth
—
Lot size
10,433 Sq. Ft.
Year renovated
2005
Sq. Ft.
3,387
Year built
2004
Style
Single Family Residential
County
Contra Costa County
APN
2233300223
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
PD
DVSP
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.
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, Int Access From Garage, Tandem, Garage Door Opener
Interior
Virtual Tour
Bathroom Information
# of Bathrooms Total: 4
# of Bathrooms Full: 4
Interior Features
Interior Features: Family Room, Formal Dining Room, Kitchen/Family Combo, Rec/Rumpus Room, Stone Counters, Eat-in Kitchen, Kitchen Island, Pantry, Updated Kitchen
Appliances: Dishwasher, Disposal, Gas Range, Microwave, Oven, Range, Refrigerator, Self Cleaning Oven, Gas Water Heater
Laundry Features: 220 Volt Outlet, Hookups Only, Laundry Room
Exterior Features: Back Yard, Front Yard, Side Yard, Sprinklers Front
Mobile Home Information
Model: Plan 1
Property Information
Living Area: 3673
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 2004
Lot Information
Lot Size Square Feet: 10440
Lot Size Area: 0.24
Lot Size Units: Acres
Lot Size Acres: 0.24
Lot Features: Corner Lot, Premium Lot
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Zoned, Natural Gas
Cooling: Ceiling Fan(s), Zoned
Location
School Information
High School District: San Ramon Valley (925) 552-5500
Public facts
Beds: 5
Baths: 4.0
Sq. Ft.: 3,387
Stories: 2.0
Lot Size: 10,433 square feet
Style: Single Family Residential
Year Built: 2004
Year Renovated: 2005
County: Contra Costa County
APN: 2233300223
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Hidden Hills Elementary School
Public K-5 • Assigned • 0.5mi
9/10
Windemere Ranch Middle School
Public 6-8 • Assigned • 1.4mi
9/10
Dougherty Valley High School
Public 9-12 • Assigned • 1.1mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
San Ramon, Past 3 months,Median price $1.51M, down 4.5% YoY,Homes sold: 169 in July, up 1%,Days on market 20 days,Market Active but more balanced; slight seller advantage,Bottom line: Prices have softened, but homes are still selling relatively...
San Ramon is best known for its seamless mix of outdoor recreation and modern conveniences. City Center Bishop Ranch is a major hub for dining, boutique shopping, and weekend events, while the Iron Horse Trail runs right through town, making it super...
San Ramon properties move fast, going pending in just 14 days. With fierce competition at the $1.6M median price, multiple offers and waived contingencies are the norm. Buyers must act decisively and submit their strongest offer immediately to win.
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2007. This data may not match public records. Learn more.