Welcome to 4478 Deer Ridge Rd—an extraordinary estate offering 5,272 sq ft of refined living on 1.13 acres with 6 bedrooms and 5.5 baths, plus a newly remodeled 336 sq ft casita—ideal for guests, multi-gen living, a private office, or creative studio. With impressive curb appeal, a wide circular drive way, & sweeping hillside views, this home delivers the ultimate blend of luxury, comfort, & lifestyle. At the heart of the home, the chef’s kitchen is designed for serious entertaining with sleek cabinetry, an oversized center island, generous prep space, and premium stainless appliances including double ovens, a built-in cooktop, & oversized refrigeration. The adjacent dining area is elevated by designer lighting & opens through sliding doors to the outdoor entertaining spaces for effortless indoor/outdoor flow. A spacious media/family room completes the main living experience—perfect for movie nights and hosting at scale. Step outside to your private resort: expansive patios with dedicated lounge and dining areas, an elevated view deck for sunset gatherings, a sparkling resistance pool, & a tucked-away LED-lit hot tub for relaxing under the stars. The entertainer’s yard continues with a built-in outdoor bar & cooking station, featuring a pizza oven, smoker, & sports court!
Single-familyProperty Type
1989Year Built
1.13 acresLot Size
$846Price/Sq.Ft.
$200/moHOA Dues
3 car garageParking
Listed by Greg Silva•DRE #02122248• Horizon Realty Group Danville
Est. $7,701 per month, based on comparable rentals
Sale and tax history for 4478 Deer Ridge Rd
Sale History
Tax History
Date
Event
Price
bridgeMLS, Bay East AOR, or Contra Costa AOR #41118875
May 22, 2026
Sold
$4,459,500
$846/sq ft
Apr 7, 2026
Pending
—
Feb 9, 2026
Price Changed
$4,999,999
$948/sq ft
Dec 19, 2025
Listed
$5,395,000
$1,023/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #41099545
Sep 4, 2025
Listing Removed
—
Aug 28, 2025
Price Changed
*
May 30, 2025
Listed
*
bridgeMLS, Bay East AOR, or Contra Costa AOR #10225885
Apr 30, 1997
Listing Removed
—
Mar 17, 1997
Sold
—
Oct 3, 1996
Listed
$1,495,000
$284/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #26225885
Apr 30, 1997
Sold
—
Mar 17, 1997
Listing Removed
—
Oct 3, 1996
Listed
$1,495,000
$284/sq ft
Public Records
Oct 7, 1992
Sold
$1,325,000
$251/sq ft
Public Records
Apr 8, 1992
Sold
$354,500
$67/sq ft
Public Records
Nov 17, 1988
Sold
$1,091,500
$207/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$27,821 (+2.1%)
$1,734,000 + $2,708,100
$4,442,100
2024
$27,255 (+1.5%)
$570,036 + $1,873,012
$2,443,048
2023
$26,839 (+0.8%)
$558,859 + $1,836,287
$2,395,146
2022
$26,631 (+2.2%)
$547,901 + $1,800,282
$2,348,183
2021
$26,066 (+0.8%)
$537,158 + $1,764,983
$2,302,141
2020
$25,867 (+1.6%)
$526,626 + $1,730,376
$2,257,002
2019
$25,460 (+4.0%)
$521,227 + $1,712,634
$2,233,861
2018
$24,490 (+3.7%)
$511,007 + $1,679,053
$2,190,060
2017
$23,614 (+1.1%)
$491,165 + $1,613,854
$2,105,019
2016
$23,362 (+1.1%)
$491,165 + $1,613,854
$2,105,019
2015
$23,100 (+1.2%)
$481,535 + $1,582,210
$2,063,745
2014
$22,823 (+1.0%)
$465,012 + $1,527,917
$1,992,929
2013
$22,590 (+11.7%)
$465,012 + $1,527,917
$1,992,929
2012
$20,222 (−0.2%)
$462,911 + $1,521,012
$1,983,923
2011
$20,253 (−5.0%)
$416,964 + $1,370,036
$1,787,000
2010
$21,318 (−0.1%)
$416,964 + $1,370,036
$1,787,000
2009
$21,346 (+3.1%)
$441,612 + $1,451,024
$1,892,636
2008
$20,696
$442,662 + $1,454,472
$1,897,134
Public record
Public record
Zoning
Permits
Beds
5
Baths
5
Stories
2
Lot width
—
Lot depth
—
Lot size
1.13 Acres
Year renovated
1989
Sq. Ft.
5,272
Year built
1989
Style
Single Family Residential
County
Contra Costa County
APN
2205310200
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
P-1
Planned Unit District
A large-scale integrated development or a general plan special area of concern provides an opportunity for, and requires cohesive design when flexible regulations are applied; whereas the application of conventional regulation, designed primarily for individual lot development, to a large-scale development or special area may create a monotonous and inappropriate neighborhood. The planned unit district is intended to allow diversification in the relationship of various uses, buildings, structures, lot sizes and open space while insuring substantial compliance with the general plan and the intent of the county code in requiring adequate standards necessary to satisfy the requirements of the public health, safety and general welfare. These standards shall be observed without unduly inhibiting the advantages of large-scale site or special area planning.
Permitted uses
Include but are not limited to:
Housing-Single unit
Jan 22, 2016 • Final
Building - residential electrical
Install a new electrical disconnect for a heating and air conditioning system.
Electrical
Nov 20, 2015 • Final
Building - residential solar photovoltaic
Install solar panels and a solar inverter on a residential building.
Electrical
Solar
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
Garage Spaces: 3
Covered Spaces: 3
Parking Features: Attached, Garage Door Opener
Interior
Bathroom Information
# of Bathrooms Total: 6
# of Bathrooms Full: 5
# of Bathrooms Partial: 1
Interior Features
Interior Features: Breakfast Bar, Breakfast Nook, Updated Kitchen, Central Vacuum, Sound System
Appliances: Dishwasher, Double Oven, Electric Range, Refrigerator, Trash Compactor
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2025. This data may not match public records. Learn more.