NOT LISTED FOR SALE

21 Ninestone Ct San Rafael, CA 94903

Marinwood Neighborhood

Estimated Value: $1,451,000 - $1,758,460

4 Beds
2.5 Baths
2,348 Sq Ft
$678/Sq Ft Est. Value

Sale Details

Date Sold: March 24, 2025

Last sale price $1,450,000 $618 Per Sq Ft

Est. 10% increase in value since last sale

Current estimated payment $10,346 / mo

9 Days on Market

Highlights

  • Sitting Area In Primary Bedroom
  • Deck
  • Wood Flooring
  • Mary E. Silveira Elementary School Rated A-
  • Contemporary Architecture
  • Breakfast Area or Nook

About This Home

As of March 2025

First time on market! Lived in by same family since built. This split-level, well maintained home consists of 4 bedrooms, family room, living room and dining area that are all large rooms. The 10,200 sq ft lot with many and varied trees, bushes and flowers adds terrific usable area for play, entertaining, creating an outdoor kitchen and/or adding an inground pool. It is only a few short blocks to Mary Silveira Elementary school and a short diustance to Rt 101.

Last Agent to Sell the Property

Lou La Gatta

Marin Realty Group License #01124649 Listed on: 02/24/2025

Last Buyer's Agent

Whitney Potter

Own Marin License #DRE #01468633

Home Details

Home Type

  • Single Family

Year Built

  • Built in 1972

Lot Details

  • 10,202 Sq Ft Lot
  • Cul-De-Sac
  • Wood Fence
  • Back Yard Fenced
  • Landscaped
  • Low Maintenance Yard

Parking

  • 2 Car Attached Garage
  • Front Facing Garage
  • Garage Door Opener
  • Uncovered Parking

Home Design

  • Contemporary Architecture
  • Brick Exterior Construction
  • Concrete Foundation
  • Metal Roof
  • Wood Siding

Interior Spaces

  • 2,348 Sq Ft Home
  • 2-Story Property
  • Wood Burning Fireplace
  • Fireplace With Gas Starter
  • Brick Fireplace
  • Family Room
  • Combination Dining and Living Room

Kitchen

  • Breakfast Area or Nook
  • Built-In Electric Range
  • Microwave
  • Dishwasher
  • Disposal

Flooring

  • Wood
  • Carpet
  • Linoleum

Bedrooms and Bathrooms

  • 4 Bedrooms
  • Sitting Area In Primary Bedroom
  • Primary Bedroom Upstairs
  • Dual Closets

Laundry

  • Laundry Room
  • Dryer
  • Washer

Outdoor Features

  • Deck

Utilities

  • No Cooling
  • Central Heating
  • Property is located within a water district
  • Cable TV Available

Community Details

  • Erickson Subdivision

Listing and Financial Details

  • Assessor Parcel Number 164-331-12

Home Details

Home Type

Single Family

Year Built

Built in 1972

Lot Details

10,202 Sq Ft Lot

Parking

2

Listing Details

  • Type: Residential
  • Property Sub Type: Single Family Residence
  • Subtype Description: Detached
  • Directions To Property: 101 - Miller Creek - (R) Las Gallinas - (L) Ninestone Ct.
  • Lot Size Acres: 0.2342
  • Stories: 2
  • Levels: Multi/Split
  • ArchitecturalStyle: Contemporary
  • Special Features: None

Interior Features

  • Appliances: Built-In Electric Range, Dishwasher, Disposal, Electric Cook Top, Free Standing Refrigerator, Microwave
  • Number Of Fireplaces: 1
  • Bedrooms: 4
  • Half Bathrooms: 1
  • Full Bathrooms: 2
  • Dining Room Features: Dining/Living Combo
  • Flooring: Carpet, Linoleum, Wood
  • Square Footage: 2348.00
  • Bathrooms: 3
  • Fireplace Features: Brick, Family Room, Gas Starter, Wood Burning
  • Kitchen Features: Breakfast Area
  • Room Type: Dining Room, Family Room, Kitchen, Laundry, Living Room, Primary Bathroom, Primary Bedroom
  • Lower Level: Family Room, Garage
  • Main Level: Dining Room, Kitchen, Living Room
  • PrimaryBedroomFeatures: Sitting Room, Walk-In Closet 2+

Exterior Features

  • Construction Materials: Brick, Wood Siding
  • Foundation: Concrete Perimeter
  • Lot Features: Cul-De-Sac, Landscape Back, Landscape Front, Low Maintenance
  • Property Condition: Original
  • Roof: Metal
  • Fencing: Back Yard, Full, Wood
  • Patio And Porch Features: Uncovered Deck

Garage/Parking

  • Parking Features: Attached, Garage Door Opener, Garage Facing Front, Uncovered Parking Spaces 2+
  • Total Parking Spaces: 4.00
  • Garage Spaces: 2.00

Utilities

  • Cooling: None
  • Sewer: Public Sewer
  • Utilities: Cable Available, Public
  • Water Source: Public, Water District
  • Heating: Central
  • Laundry Features: Dryer Included, Washer Included

Lot Info

  • Assessor Parcel Number: 164-331-12
  • Lot Size Sq Ft: 10202.00

Building Info

  • Year Built: 1972

Ownership History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Name Owned For Owner Type

Purchase Details

Listed on
Feb 24, 2025
Closed on
Mar 10, 2025
Sold by
Bought by
Seller's Agent
Lou La Gatta
Marin Realty Group
Buyer's Agent
Whitney Potter
Own Marin
List Price
$1,495,000
Sold Price
$1,450,000
Premium/Discount to List
-$45,000
-3.01%
Views
14
Current Estimated Value
$1,588,507

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$138,507
Avg. Annual Appreciation
7.44%
Original Mortgage
$170,000
Interest Rate
0.0689%

Purchase Details

Closed on
Apr 8, 2006
Sold by
Bought by
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
Collateral Analytics

Collateral Analytics Collateral Analytics AVMs (Automated Valuation Model) employ a number of statistical approaches combined with neighborhood-specific comparable selection guarantees the most up-to-date and precise valuations.

Not Available

Collateral Analytics does not have data for the current month. Please view the chart for historical values.

ICE

ICE Mortgage Technology ICE Mortgage Technology’s AVM (Automated Valuation Model) is a state-of-the-art online residential property valuation tool that provides a quick and accurate estimate of the value of almost any home in the U.S.

Not Available

ICE Mortgage Technology does not have data for the current month. Please view the chart for historical values.

First American

First American First American Data & Analytics’ next-generation AVM combines unrivaled data assets with a blended ensemble of valuation models to produce highly accurate, reliable valuations you can trust.

Not Available

First American does not have data for the current month. Please view the chart for historical values.

Quantarium

Quantarium Quantarium’s valuation service, repeatedly proven the industry’s most accurate and comprehensive, is supercharged with a self-learning and auto-tuning AI engine that continually becomes smarter and more accurate as it processes daily inputs from the industry’s leading RE data lake.

Not Available

Quantarium does not have data for the current month. Please view the chart for historical values.

Average Value
Not Available
List Price
Sold Price
Create a Home Valuation Report for This Property
The Home Valuation Report is an in-depth analysis detailing your home's value as well as a comparison with similar homes in the area

Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
$1,450,000 Old Republic Title
-- None Available
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Closed $1,297,200
Closed $170,000
Closed $1,087,500
Closed $1,724,737
Closed $65,000
Closed $100,000
Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft
03/24/2025 03/24/25 Sold $1,450,000 -3.0% $618 / Sq Ft
03/05/2025 03/05/25 Pending -- -- --
02/24/2025 02/24/25 For Sale $1,495,000 -- $637 / Sq Ft
Source: Bay Area Real Estate Information Services (BAREIS)

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $21,192 $1,500,000 $885,000 $615,000
2024 $5,119 $179,068 $42,063 $137,005
2023 $4,942 $175,557 $41,238 $134,319
2022 $4,694 $172,114 $40,429 $131,685
2021 $4,461 $168,715 $39,628 $129,087
2020 $4,394 $166,985 $39,222 $127,763
2019 $4,054 $163,711 $38,453 $125,258
2018 $3,961 $160,502 $37,699 $122,803
2017 $3,808 $157,355 $36,960 $120,395
2016 $3,697 $154,271 $36,236 $118,035
2015 $3,541 $151,953 $35,691 $116,262
2014 $3,300 $148,977 $34,992 $113,985
Source: Public Records

Agents Affiliated with this Home

  • Lou La Gatta

    Seller's Agent in 2025

    Lou La Gatta

    Marin Realty Group

    (415) 608-4842

    2 in this area

    14 Total Sales

    Lou La Gatta
    Section Image
  • Whitney Potter

    Buyer's Agent in 2025

    Whitney Potter

    Own Marin

    (415) 640-8671

    10 in this area

    565 Total Sales

    Whitney Potter
    Section Image
See All Agents

Map

Source: Bay Area Real Estate Information Services (BAREIS)

MLS Number: 324090444

Bay Area Real Estate Information Services (BAREIS)

APN: 164-331-12

California Marin County San Rafael 94903 Marinwood

21 Ninestone Ct, San Rafael, CA

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

Bay Area Real Estate Information Services (BAREIS) Listing information deemed reliable but not guaranteed. Copyright 2026 Bay Area Real Estate Information Services, Inc. All Right Reserved.

Nearby Homes
Your Personal Tour Guide

Ask me questions while you tour the home.