Listing cover photo
1 / 1

25 Portsmouth Ct, San Ramon, CA 94582

$2.69M4bd · 3ba · 3,123 sqft
Lot 15,232 sqft•HOA $80/mo•Single Family Residence•
Active
•130d on market•MLS# 01-41137128

Property Description

Nestled on a premium 0.35-acre cul-de-sac lot in San Ramon’s desirable Royal Ridge neighborhood, this extensively renovated 4-bedroom, 3-bath residence offers approximately 3,123 square feet of refined living space with beautiful valley views and resort-style outdoor amenities. The heart of the home is a designer chef’s kitchen featuring custom Medallion cabinetry, premium Miele appliances including a built-in coffee system, steam oven, and microwave, dual Bosch built-in refrigerators, a Julien sink, and a temperature-controlled 165-bottle wine refrigerator. Thoughtfully remodeled throughout, the home showcases exceptional craftsmanship and luxurious finishes, including custom cabinetry in the kitchen and bathrooms, Hansgrohe fixtures, Duravit toilets, and a stunning primary suite highlighted by a Victoria + Albert freestanding soaking tub and vessel sink. Major capital improvements include a newer roof, updated windows, and an upgraded driveway, providing long-term value and peace of mind. Extensive exterior enhancements include the transformation of the rear hillside, creating additional usable outdoor space supported by newly constructed retaining walls and professionally designed landscaping. The modernized pool and spa system features customizable LED underwater lighting and premium spa amenities. Completed through a comprehensive multi-year renovation program, these substantial improvements reflect a significant investment in quality, functionality, and lasting value. Multiple living areas, a fireplace, and a spacious 3-car garage further enhance the home's comfort and versatility. The expansive backyard creates a private retreat for entertaining and relaxation, combining mature landscaping, scenic valley views, and resort-style amenities rarely found in today's market. A rare opportunity to own an extensively renovated luxury residence in one of San Ramon's most sought-after neighborhoods, where timeless design, exceptional craftsmanship, and thoughtful upgrades come together to create an extraordinary place to call home.

Features & Amenities

Royal RidgeFeeBuilt 1982

Property Details

Subdivision
Royal Ridge
Land Type
Fee
Year Built
1982
Property Type
Residential
Property Subtype
Single Family Residence
Parking Spaces
3
Garage Spaces
3
Heating
Forced Air
Cooling
Central Air
Flooring
Wood
Roof
Shingle
City
San Ramon
Zip Code
94582
County
Contra Costa
Listed byRE/MAX Accord, Mark Ho

Mortgage Calculator

Current Rates

$
$
%
Monthly Payment
$13,602.10
Principal & Interest
Loan Amount
$2,152,000
Total Interest
$2,744,757
Total Payment Over 30 Years
$4,896,757
This calculator provides estimates only. Actual mortgage payments may include taxes, insurance, HOA fees, and PMI. Contact a lender for accurate quotes.

About Royal Ridge

This property is located in Royal Ridge, a community in San Ramon. Explore more listings in this neighborhood to compare options and pricing.

View Royal Ridge Listings

Comparative Market Analysis

Luxury Tier · 5 active · 5 closed

25 Portsmouth Ct, San Ramon, CA 94582

Royal Ridge · San Ramon · Single Family Residence

$2.69M
Luxury Tier
Beds
4
Baths
3
Sqft
3,123
Lot
15,232 sqft
Year
1982
$/Sqft
$861
Pool: Yes✓
Spa: Yes✓
View: desert✓
Garage: 3-car✓

Listed 29.6% above the median closed sale of $2,075,000. Price per sqft ($861) is a 26% premium to closed comps ($683). Luxury tier — fewer comparable sales widen the confidence range.

Price Position

Positioned above the market — commands a premium.

Premium
Subject listed at $2.69M· $861/sqft
Total list price
Closed comps
vs closed median $2.08M
+$615K (+29.6%)
Active comps
vs active median $1.92M
+$770K (+40.1%)
Price per sqft
Closed compsinsufficient comp data
Active comps
vs active avg $/sqft $699
+$162 (+23.2%)

Active Properties (5)

Active Comparables

AddressCityYearBDBTHSqFtLotSzLP/SqFtLPDIMScore
104 Wildflower Valley CtSan Ramon1996532,74613,000$799$2.19M1657
135 Camden Ct.San Ramon1987432,7789,570$611$1.70M1755
55 Foster DrSan Ramon1998533,1768,360$636$2.02M752
2451 Palmira PlSan Ramon1975432,51817,050$742$1.87M1552
2838 Vernon WaySan Ramon2005432,7156,144$707$1.92M1751
Total: 5 · Average4.43.02,786.610,824.8$699$1.94M14.4
Median2,746$1.92M

Closed Properties (5)

Closed Comparables

AddressCityYearDateBDBTHSqFtLotSzLPSPSP/SqFtSP/LPDIMScore
10137 Nantucket DrSan Ramon198408/31/2026433,28013,662$2.15M$2.08M$6330.979682
34 Shetland CtSan Ramon198309/01/2026433,00010,000$2.25M$2.31M$7721.032658
2704 Mohawk CirSan Ramon198309/28/2026432,53911,040$1.60M$1.52M$5990.9510156
3309 Burning Tree DrSan Ramon197709/18/2026532,92411,000$2.20M$2.15M$7350.985655
204 Lasso CirSan Ramon198108/25/2026432,77615,344$1.75M$1.87M$6741.073354
Total: 5 · Average4.23.02,903.812,209.2$1.99M$1.99M$682.6—62.4
Median2,924$2.08M$2.08M

Market Analysis

List vs Sale $/SqFt

Sale Price Trend

Days on Market

Sale vs List Price

AI-generated CMA

This analysis was generated automatically from MLS data. For an in-depth, human-reviewed valuation, contact Joseph Sardella at josephsardella@gmail.com.