1640 Observation Ct, Antioch, CA 94531
OFF MARKET

1640 Observation Ct
Antioch, CA 94531

  • 4 Beds
  • 3 Baths
  • 3,527 sqft (on 0.27 acres)

$840,700

Trulia Estimate
as of Jun 4, 2026
Est. Refi. Payment $5,062/mo*
Refinance Your Home

$840,700

Trulia Estimate
as of Jun 4, 2026
Est. Refi. Payment $5,062/mo*
Refinance Your Home
4 Beds
3 Baths
3,527 sqft
(on 0.27 acres)

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

Gorgeous single family home of 3527 square feet offers 4 bed rooms, 3 bath rooms, family room, living room, library/game room and an office room. Unique, bird's-eye view from Black Diamond Knoll, the hill top of Antioch seeing sun rise at the dawn and sun set in the dusk from our backyard and upstairs balcony. Bright windmills in the distance of seashore bring you cool breezes. Spacious Master Bedroom provides one walk-in closet each for both host and hostess. It also includes a vigorous Jacuzzi for massage. Beautiful tile floors in most of downstairs; granite counters, chefs stove in kitchen with walk-in pantry. Spiral wood staircase leads to upstairs. Vacant, clean, move-in condition; must see!
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources.

Home Highlights

Parking
Garage
Outdoor
No Info
A/C
Cooling only
HOA
None
Price/Sqft
No Info
Listed
Less than a day ago

Home Details for 1640 Observation Ct

Property Information

Year Built
Year Built: 2002Year Updated: 2002
Property Type / Style
Property Type: Single Family Home

Interior Features

Interior Details
Number of Rooms: 12Types of Rooms: Dining Room, Family Room, Master Bath
Appliances & Utilities
DishwasherDisposalMicrowave
Heating & Cooling
Air ConditioningCooling System: Central

Exterior Features

Parking & Garage
GarageParking Spaces: 3Parking: Garage Attached

Community

Units in Building: 1

Lot Information

Lot Area: 0.27 acres

Price History for 1640 Observation Ct

DatePriceEventSource
03/05/2019$615,000Sold
N/A
10/13/2016$635,000ListingRemovedAgent Provided
09/07/2016$635,000PriceChange
Agent Provided
08/18/2016$649,950Listed For SaleAgent Provided
06/13/2013$480,000Sold
N/A
04/18/2013$549,950Listed For SaleAgent Provided
07/12/2010$350,000Sold
N/A
04/05/2005$905,000Sold
N/A
09/27/2002$532,000Sold
N/A

Market trends in Antioch

Last updated April 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$571K
$9KMoM
Sale-to-List Price
100.5%
0.4%MoM
Price per sq ft
$323
$9MoM
Available listings
224
16MoM
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Property Tax and Assessment

Year2025
Tax$7,994
Assessment$686,038
Home facts updated by county records

Comparable Sales for 1640 Observation Ct

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
1835 Sanger Peak Way, Antioch, CA
0.14
Single-Family Home
$710,000
09/08/25
4
3
3,270
1834 Sanger Peak Way, Antioch, CA
0.11
Single-Family Home
$950,000
02/27/26
5
3
3,270
1838 Buck Mountain Ct, Antioch, CA
0.14
Single-Family Home
$740,000
10/31/25
5
3
3,125
1724 Kern Mountain Way, Antioch, CA
0.25
Single-Family Home
$790,000
09/02/25
4
3
3,335
1756 Sanger Peak Way, Antioch, CA
0.28
Single-Family Home
$800,013
10/20/25
4
3
3,402
1803 Sanger Peak Way, Antioch, CA
0.23
Single-Family Home
$765,000
05/15/26
4
2.5
2,888
2621 Carson Way, Antioch, CA
0.27
Single-Family Home
$685,000
07/18/25
5
3
2,991
1787 Sanger Peak Way, Antioch, CA
0.26
Single-Family Home
$850,000
10/30/25
4
3
3,117
1856 Buck Mountain Ct, Antioch, CA
0.15
Single-Family Home
$885,000
11/10/25
6
3
3,335
1851 Sanger Peak Way, Antioch, CA
0.14
Single-Family Home
$770,000
04/27/26
3
3
2,617

Nearby homes

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Assigned Schools

These are the assigned schools for 1640 Observation Ct.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

What Locals Say about Antioch

At least 877 Trulia users voted on each feature.

  • 93 % Say there are sidewalks

  • 83 % Say car is needed

  • 81 % Say it's dog friendly

  • 78 % Say parking is easy

  • 77 % Say yards are well-kept

  • 71 % Say there's holiday spirit

  • 54 % Say streets are well-lit

  • 53 % Say kids play outside

  • 52 % Say it's walkable to grocery stores

  • 51 % Say it's quiet

  • 50 % Say neighbors are friendly

  • 47 % Say they plan to stay for at least 5 years

  • 46 % Say it's walkable to restaurants

  • 45 % Say there's wildlife

  • 40 % Say people would walk alone at night

  • 20 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Rnsmith2003
    "Neighborhood always felt safe but lately there has been more homeless people wandering through the neighborhood so it doesn’t feel so safe anymore. "
    0
    Flag
  • Alka Gurung
    "They would love it. There is lots of parks and walking areas in the neighborhood. I don’t know anything about not liking this neighborhood. It’s safe , walkable and tons of nature and outdoor space."
    0
    Flag
  • Myteeone
    "There is a lot of traffic and accidents. I hear cars doing donuts all the time. Big fast cars with road rage. "
    0
    Flag
  • Cpineda88
    "Love it here like anywhere else you need to protect your belongings and family and have lights out at night"
    2
    Flag
  • Nicole Stearns
    "Lots of criminal activity and violence, not a place where I would want to raise a family. My father bought a home here almost 20 years ago, and now can’t sell because of the community."
    16
    Flag
  • Soa26nau
    "I moved here to Antioch from San Leandro to be close to my church family ( kings chapel) Servicing the people and the community I loved to do "
    3
    Flag
  • Hugo2pac
    "Antioch is super safe. I’ve been living here since 1993 and never felt like Antioch is unsafe. Lots of parks, clean, shopping, and more. "
    3
    Flag
  • Fred Ronque
    "Keep your homes secure with security systems like cameras and security lights to help deter any potential criminals from exploiting your home and the neighborhood. Safety first above everything else, and coordinate with friendly neighbors for a joint community watch group to help maintain peace and security in your neighborhood."
    9
    Flag
  • Paramjit K.
    "GOT CLEAN AND QUITE AFTER NEW MANGEMENT TOOK OVER POOL IS CLEAN. AREA IS GROOMED.SECURITY IS THERE. CAMERAS ARE THERE. IT IS BECOME PEACEFULL. QUITE I ENJOY IT"
    7
    Flag
  • Paramjit K.
    "this place PEPPERTREE WAY BY THE SYCAMOR used to be little mess but 2 months ago new Hoa took over they cleaned out the area it became quite and cleaner. POOL GOT CLEANED AND IT IS OPEN PEOPLE STAT ENJOYING THEY CAN WALK FREELY NO NOISE "
    5
    Flag
  • Michael L.
    "the community, its quiet, its clean. i have been living out here for about 5 yrs. I have my family, i dont work too far and my kids schools are 5 mins or less from home "
    1
    Flag
  • Charles Y.
    "People look after each other. Near elementary, middle and high schools. Two hospital within driving distance. BART is new to the area and new housing and store complex being build close to BART. "
    6
    Flag
  • Trulia User
    "Very quiet and no one really complained if someone has a family party they don’t even bother my neighbors are very friendly and nice "
    0
    Flag
  • Cortney B.
    "There are some homeless in the area, but for the most part all neighbors are pretty friendly. The park is okay, though I feel the tennis court could use more tending to. There are a lot of fast drivers, so definitely keep an eye on kids and keep them out of the street. "
    0
    Flag
  • Harold P.
    "Diverse neighborhood, some homes are rented and you can tell by the landscaping. Near freeway and Bart station. "
    0
    Flag
  • Gina A. V.
    "They would like other dogs live in this community. There’s 3 parks so there’s plenty room & different areas to go on walks "
    13
    Flag
  • Gjblum1
    "This used to be a nice area. Not so much anymore. Things changed about 15 years ago. Time to find a safe neighborhood like Antioch used to be."
    0
    Flag
  • Amberly W.
    "They block off downtown and have festivals for kids and car shows bbqs all kinds of stuff.. That’s the only nice thing about living down here. Other than that my car is always broken into people steal anything u leave outside. It’s not safe for my kids to play in front by them selves or to walk alone around here to many homeless people."
    18
    Flag
  • Carolwall
    "It’s simple, don’t move here. It is brutal, rough, homeless, crime, mental illness and vandalism all extremely high. I have lived here 9 years. "
    0
    Flag
  • Gina V.
    "This neighborhood has a good amount of kids from toddler to high school living here. There are 3 parks with different ways of being active within them. "
    6
    Flag
  • Gina A. V.
    "They would like the three parks in this neighborhood where they can let their dogs roam and do their business. It’s a dog friendly neighborhood"
    5
    Flag
  • Michael F.
    "The neighborhood is getting bad day by day. Drug dealing down street . Homeless everywhere. Public area has trash on street and sidewalk. Trash truck drives right by it "
    3
    Flag
  • Lamar.lewis83
    "It’s a lot of trails and parks to walk around. Just need to watch out for bike riders and homeless in some areas. Overall a lot of place to stay active. It’s kid friendly and the elderly walk a lot on those trails as well. The best trail are on James Donlon and the by deer valley high school"
    10
    Flag
  • Brittney S.
    "It’s culturally diverse. A beautiful community of people that are hard working and kind to each other! "
    3
    Flag
  • Seraiah H.
    "Dog owners walk their dogs all the time. Many owners do not clean up after their dogs. There are also strays too."
    7
    Flag
  • Alicia V.
    "its whatevers always gun shots and annoying loud people..people dont have any humanity sense.........."
    10
    Flag
  • Jesse C.
    "If you can use public transit it’s conveniently located near multiple neighborhoods. Otherwise heavy traffic between the hours of 630-930 am and 230-6 pm"
    3
    Flag
  • Chris K. C.
    "Quiet. close to schools public transportation grocery stores close to freeway Hospitals................."
    1
    Flag
  • Teacherdouglas1
    "About 20 minutes walk to the Bart Station. Accessible to many different routes like Highway 4, Bailey Road, Kirker Pass, Marsh Creek Road, etc. to avoid traffic. Buses are available in different street corners 1 or 2 blocks away."
    1
    Flag
  • Elle.wilson68
    "My community is always working. not many kids. pretty much everyone keeps to themselves. pretty quiet around here for three most part, compared to other parts of Antioch. "
    3
    Flag
  • kilo insane
    "I wouldn’t use Public transportation it’s too dangerous Drug users leaving dirty needles in seats been afraid to be robbed stabbed or assaulted"
    1
    Flag
  • Disharafancyj
    "Sometimes it’s pretty loud. Being so diverse which is a plus there are a lot of dogs in this neighborhood."
    0
    Flag
  • Carolwall
    "My commute is awful the most awful commute I ever have had. 20 miles will take you 45 minutes almost every day and every time and the traffic is getting worse later in the day even to 9 o’clock."
    1
    Flag
  • Brendamaciel411
    "Good place to live nice neighborhood houses kept up very well lawns kept up very well no neighborhood break in no home invasions "
    0
    Flag
  • Jose G.
    "heavy traffic and crazy drivers daily. surrounding streets not to safe. commute west bound in morning extremely heavy and commute east bound in afternoon extremely heavy"
    2
    Flag
  • Jamesa C.
    "There is a really great water park and community center open during summer. The library is nice especially for younger children"
    0
    Flag
  • Maria L. M.
    "There a park nearby and people enjoy walking in the neighborhood. Quiet for the most part l. School so nearby "
    0
    Flag
  • Trulia User
    "Parks, trails, city landscaping, schools highly rated. Family oriented , pet friendly, higher income families, good day care systems "
    0
    Flag
  • Marisa M.
    "I don’t know any community events other than the food trucks they have at the community center on Thursday’s "
    0
    Flag
  • Darriansmith1998
    "Nothing in our community besides the schools events, and if you don’t have kids it doesn’t apply to you."
    0
    Flag

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Off Market Homes Near 1640 Observation Ct

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1640 Observation Ct, Antioch, CA 94531 is a 4 bedroom, 3 bathroom, 3,527 sqft single-family home built in 2002. This property is not currently available for sale. 1640 Observation Ct was last sold on Mar 5, 2019 for $615,000. The current Trulia Estimate for 1640 Observation Ct is $840,700.