640 Mount Duncan Dr, Clayton, CA 94517
Property image
Property image
OFF MARKET

$1,000,800

Trulia Estimate
  • 4 Beds
  • 3 Baths
  • 2,177 sqft

640 Mount Duncan Dr, Clayton, CA 94517

Est. Refi. Payment $6,312/mo*
Refinance Your Home
Currently Off Market - Sold Oct 14, 2025 for $1,015,000

Home Value

Trulia Estimate
$1M
Since last month
Decreased$11K (-1.1%)
Since last year
Decreased$28K (-2.7%)
Since last sale
Decreased$15K (-1.5%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +27% in the last 10 years
MonthEstimated value
2026
September 2026$1M
August 2026$1.01M
July 2026$1.01M
June 2026$987K
May 2026$1.02M
April 2026$1.03M
March 2026$1.03M
February 2026$1.02M
January 2026$1.01M
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
228 Mountaire Pkwy, Clayton, CA
0.16
Single-Family Home
$917,500
06/17/26
4
3
2,177
541 Mount Davidson Ct, Clayton, CA
0.05
Single-Family Home
$1,260,000
05/29/26
5
3
2,481
632 Mount Duncan Dr, Clayton, CA
0.04
Single-Family Home
$1,065,000
10/09/25
4
2
2,325
20 Mount Tamalpais Pl, Clayton, CA
0.22
Single-Family Home
$1,050,000
10/14/25
4
3
2,141
406 Mount Sequoia Ct, Clayton, CA
0.13
Single-Family Home
$1,205,000
03/10/26
4
2
2,078
720 Bloching Cir, Clayton, CA
0.32
Single-Family Home
$1,100,000
02/22/26
4
3
2,325
305 Mountaire Pkwy, Clayton, CA
0.27
Single-Family Home
$1,100,000
03/20/26
4
2
2,078
30 Mount McKinley Ct, Clayton, CA
0.35
Single-Family Home
$912,000
09/30/25
4
3
2,503
510 Mount Dell Dr, Clayton, CA
0.30
Single-Family Home
$935,000
06/22/26
5
3
2,619

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
632 Mount Duncan Dr, Clayton, CA 94517
0.04
$1,049,600
4
2
2,325
Off Market
Address Not Disclosed, Clayton, CA 94517
0.09
$1,193,100
5
2
2,694
Off Market
541 Mount Davidson Ct, Clayton, CA 94517
0.05
$1,260,000
5
3
2,481
Recently Sold
621 Mount Olivet Ct, Clayton, CA 94517
0.05
$1,256,300
4
2
2,177
Off Market
Address Not Disclosed, Clayton, CA 94517
0.07
$1,278,200
5
2
2,694
Off Market
Address Not Disclosed, Clayton, CA 94517
0.09
$1,062,300
4
2
2,077
Off Market
Address Not Disclosed, Clayton, CA 94517
0.06
$1,159,500
4
2
2,078
Off Market
406 Mount Sequoia Ct, Clayton, CA 94517
0.13
$1,205,000
4
2
2,078
Recently Sold
Address Not Disclosed, Clayton, CA 94517
0.09
$1,161,200
4
2
2,261
Off Market
522 Mount Davidson Ct, Clayton, CA 94517
0.11
$1,199,100
4
2
2,325
Off Market
424 Mount Sequoia Ct, Clayton, CA 94517
0.15
$1,322,100
3
2
2,078
Off Market

Local Information

  • Map ViewExplore the area around 640 Mount Duncan Dr.
  • Schools1 Elementary School1 Middle School5 High Schools
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1980
2,177 sqft
$460/sqft
2 Car Garage
HOA $82/mo

About this House

What's unique:New hardwareSpacious primary suiteFlat functional backyardNatural lightGenerous closet spaceCozy family room
Welcome to 640 Mt Duncan Drive, a home that captures the best of Clayton living in the peaceful Dana Hills community. With 4 bedrooms and 3 bathrooms, this residence is designed for both comfort and versatility. On the main level, a full bedroom and bathroom create an ideal retreat for guests or extended family, while the living and dining rooms open to a cozy family room perfect for gatherings. The kitchen shines with stainless steel appliances, freshly painted cabinets, new hardware, and a clean modern touch. Upstairs, the spacious primary suite is joined by two additional bedrooms, each offering generous closet space and natural light. Recent improvementsincluding a new roof and upgraded landscapingadd peace of mind and curb appeal. Outside, the flat, functional backyard invites you to imagine garden beds, play areas, or summer barbecues under the shaded deck. Life in Dana Hills means more than just a homeit's access to a community pool, greenbelt trails, and the sense of safety and tranquility that makes this neighborhood so special.
640 Mount Duncan Dr, Clayton, CA 94517 is a 4 bedroom, 3 bathroom, 2,177 sqft single-family home built in 1980. It last sold for the $1,015,000 asking price on Oct 14, 2025. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $1,000,800, with a rent estimate of $4,488/month.
Last check for updates: about 6 hours ago
Listed by Ina Daniliuk DRE #01946193, (415) 424-6223
Compass, (510) 254-3831
Bought with: Ambar E. Toledo DRE #02031803, (510) 239-8827, Twin Oaks Real Estate INC, (707) 746-8700
Originating MLS: San Francisco Association of REALTORS
Source: SFAR, MLS#425074416

Home Details for 640 Mount Duncan Dr

Interior Features

Interior Details
Number of Rooms: 9Types of Rooms: Master Bedroom, Bedroom 1, Bedroom 2, Bedroom 3, Bedroom 4, Dining Room, Family Room, Kitchen, Living RoomWet Bar
Beds & Baths
Number of Bedrooms: 4Number of Bathrooms: 3Number of Bathrooms (full): 3
Dimensions and Layout
Living Area: 2177 Square Feet
Appliances & Utilities
Utilities: Internet Available, PublicAppliances: Dishwasher, Disposal, Free-Standing Electric Range, Free-Standing Refrigerator, MicrowaveDishwasherDisposalLaundry: Hookups OnlyMicrowave
Heating & Cooling
Heating: Central,Fireplace(s)Has CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Central
Fireplace & Spa
Number of Fireplaces: 1Fireplace: Living Room, Raised Hearth, Stone, Wood BurningHas a Fireplace
Windows, Doors, Floors & Walls
Window: ScreensFlooring: Linoleum, Vinyl, Wood
Levels, Entrance, & Accessibility
Stories: 2Floors: Linoleum, Vinyl, Wood
View
Has a ViewView: Hills, Mountain(s), Mt Diablo
Security
Security: Carbon Monoxide Detector(s), Smoke Detector(s)

Exterior Features

Exterior Home Features
Roof: CompositionPatio / Porch: Rear PorchFencing: Back Yard, WoodOther Structures: PergolaExterior: Outdoor GrillNo Private Pool
Parking & Garage
Number of Garage Spaces: 2Number of Covered Spaces: 2No CarportHas a GarageHas an Attached GarageHas Open ParkingParking Spaces: 4Parking: Driveway,Attached,Garage Door Opener,Side By Side,Independent,On Site (Single Family Only)
Pool
Pool: Community
Frontage
Road Surface Type: Paved Sidewalk
Farm & Range
Not Allowed to Raise HorsesDoes Not Include Irrigation Water Rights
Surface & Elevation
Elevation Units: Feet

Days on Market

Cumulative Days on Market: 8

Property Information

Year Built
Year Built: 1980
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family Residence
Building
Not Attached PropertyDoes Not Include Home Warranty
Property Information
Parcel Number: 119490050

Price & Status

Price
List Price: $1,015,000
Status Change & Dates
Possession Timing: Close Of Escrow

Active Status

MLS Status: Closed

Location

Direction & Address
City: Clayton

Building

Building Area
Building Area: 2177 Square Feet

Community

Not Senior Community

HOA

HOA Fee Includes: Pool, OtherHOA Name: Dana HillsAssociation for this Listing: San Francisco Association of REALTORSHas an HOAHOA Fee: $245/Quarterly

Lot Information

Lot Area: 9880 sqft

Documents

Disclaimer: All data, photos, visualizations, and information regarding a property, including the property's compliance with state and local legal requirements and all measurements and calculations of area, have been obtained from various sources and may include such material that has been generated by use of artificial intelligence. Such information and material have not been and will not be verified for accuracy by the listing broker or the multiple listing service, and are not guaranteed as complete, accurate or reliable. Such information and material should be independently reviewed and verified for accuracy. This information and material are intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Listing Info

Special Conditions: Standard

Offer

Listing Terms: 1031 Exchange, Cash, Conventional

Miscellaneous

Mls Number: 425074416

Additional Information

HOA Amenities: Greenbelt, Park, Playground, Pool

Price and Tax history

DateEventPrice
Oct 14, 2025
Source: SFAR #425074416
Sold
$1,015,000
Sep 25, 2025
Source: SFAR #425074416
Pending
$1,015,000
Sep 17, 2025
Source: SFAR #425074416
Listed For Sale
$1,015,000
Sep 1, 2025
Source: bridgeMLS/CCAR/Bay East AOR #41104961
ListingRemoved
$999,000
Jul 17, 2025
Source: bridgeMLS/CCAR/Bay East AOR #41104961
Listed For Sale
$999,000

Market trends in Clayton

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
44
2MoM

Around this home

What Locals Say about Clayton

At least 70 Trulia users voted on each feature.

  • 93 % Say parking is easy

  • 91 % Say it's dog friendly

  • 90 % Say there are sidewalks

  • 88 % Say car is needed

  • 87 % Say it's quiet

  • 85 % Say people would walk alone at night

  • 78 % Say kids play outside

  • 77 % Say yards are well-kept

  • 76 % Say there's wildlife

  • 74 % Say streets are well-lit

  • 74 % Say there's holiday spirit

  • 73 % Say it's walkable to restaurants

  • 69 % Say neighbors are friendly

  • 66 % Say they plan to stay for at least 5 years

  • 48 % Say there are community events

  • 46 % Say it's walkable to grocery stores

Sourced by Trulia users. Learn more about our methodology.
  • Roxyj1212
    "Everyone has a dog (or two) and are out walking them in the neighborhood. The neighbors seem to know each other dog’s by name and regularly say “hi” as they walk by."
    0
    Flag
  • Stevenrcurrie
    "There are some nice options for walking your dog in Clayton, including sidewalks and walking trails."
    0
    Flag
  • Tyler Watson
    "It is a really family friendly and dog loving place with plenty of dog parks and friendly people. We love to take our dogs on walks. "
    0
    Flag
  • Monica.burden
    "I work from home. However, it can take 25 minutes to get to the freeway. If you live in Clayton and work outside your home, expect a long commute. "
    0
    Flag
  • Monica.burden
    "Hiking trails in every neighborhood that take you to the center of town, concerts and art/wine festivals, low crime, picturesque. "
    0
    Flag
  • Trulia User
    "I’ve lived in this city for almost 40 years. It’s changed a lot and I think not for the better personally. I am trying to leave"
    0
    Flag
  • Eriksbox
    "Great place to raise a family. Small town feel. Good schools and friendly safe area. Great trails for walking and into Mt. Diablo."
    1
    Flag
  • Lysha.stone
    "Very quiet & clean. Clayton is very well put together. Safe & sound. Feel good walking around at all times of the day. Runners every day. Bike ridding. Plenary of parks & grass around. Dog friendly "
    0
    Flag
  • Daviddeichler
    "One of the only little cities left in the entire east bay of Northern California . It’s safe . It’s not over populated and over 90% of the people that live here have lived here for more than 20years or more "
    2
    Flag
  • Ublightangel
    "Safe. Beautiful. Friendly. Kids and Pet friendly. Peaceful. Well kept. Close to everything. Small town feel. Good schools. "
    1
    Flag
  • Ublightangel
    "Lots of families and lots of nice dogs. Access to best schools. Peaceful and quiet. Close to downtown Clayton. Great community. Feels secure and safe. Lovely weather. Occassionally experience heavy wind storms in the winter but nothing major. Just suggest if buying a home with original fencing it may need to be updated to hold up another 30 years lol These fences have held up to a lot of wind over the years. "
    0
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  • Ladydi2351
    "I've lived here for 20 years and love it! Clayton is a quaint town with a beautiful view of Mt. Diablo. It is also a safe community."
    0
    Flag
  • Rooftilecustom
    "community theater 2 times a year and a summer stage. bocce ball. art and wine festival's including. the Octoberfest. "
    0
    Flag
  • Andy R.
    "I work from home. But, this is not the best commuting location. We are not near major highways and Ygnacio Rd is very busy through Walnut Creek"
    2
    Flag
  • Images247
    "We can walk to downtown Clayton to go out to eat or go to the post office. So many walking trails & Mt. Diablo is in our backyard,too."
    0
    Flag
  • James H.
    "Attractive quite neighbor in Clyton. Great community."
    0
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  • Michelle C.
    "Best place to raise a family hands down. My kids went to all three schools. Since CV went Charter, the API scores went through the roof. From small community feeling, to rolling hills and views, this is the place to be."
    0
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  • anndh
    "Clayton is a wonderful small town( 11,000 pop). Excellent restaurants and deli's, little theater, farmer's market, summer outdoor concerts, community park. Clayton was created for those who love to walk, bike, and horseback ride. Very friendly and clean town. Local high school is charter school."
    0
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  • missadrienne
    "Resident of the Dana Hills tract of Clayton for 19 years. Easy access to BART for travel to San Francisco."
    2
    Flag

LGBTQ Local Legal Protections

IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.

Frequently asked questions about 640 Mount Duncan Dr

  • What is 640 Mount Duncan Dr estimated to be worth?
    Trulia's estimated value for 640 Mount Duncan Dr in Clayton, CA is $1,000,800.
  • What is the price history for 640 Mount Duncan Dr?
    640 Mount Duncan Dr in Clayton, CA last sold for $1,015,000 in October 2025.
  • Is Clayton a buyer's or seller's market?
    Clayton is currently a buyer's market, based on recent for-sale activity.
  • What do residents say about Clayton?
    Residents describe Clayton, CA as easy to park in, dog-friendly, and pedestrian-friendly. See recently sold homes in Clayton, CA.
  • Does 640 Mount Duncan Dr have air conditioning?
    Yes, 640 Mount Duncan Dr in Clayton, CA has air conditioning.
  • Does 640 Mount Duncan Dr have a pool?
    Yes, 640 Mount Duncan Dr in Clayton, CA has a pool.

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