For Sale
Condo for sale at 23640 Monument Cyn #C, Diamond Bar, CA 91765 | MLS# AR26144642 | Listing updated on 2026-09-03
Photo 1 of Condo for sale at 23640 Monument Cyn #C, Diamond Bar, CA 91765 | MLS# AR26144642 | Listing updated on 2026-09-03
Photo 2 of Condo for sale at 23640 Monument Cyn #C, Diamond Bar, CA 91765 | MLS# AR26144642 | Listing updated on 2026-09-03
Photo 3 of Condo for sale at 23640 Monument Cyn #C, Diamond Bar, CA 91765 | MLS# AR26144642 | Listing updated on 2026-09-03
Photo 4 of Condo for sale at 23640 Monument Cyn #C, Diamond Bar, CA 91765 | MLS# AR26144642 | Listing updated on 2026-09-03
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Listed by: Jonathan Rodriguez (626) 623-7957 DRE #02060068 | CA Flat Fee Listings, Inc (626) 790-2250

$635,000

Monthly Est:$3,161

  • Beds Icon2 Beds
  • Beds Icon
    2 Baths
  • Beds Icon1,191sqft

23640 Monument Cyn #C, Diamond Bar, CA 91765

$3,161/moEst:

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  • Condominium

  • Built in 1979

  • $365/mo HOA

  • 10.6 acres lot

  • $533/sq.ft

Description

Beautifully upgraded two-bedroom, one-and-a-half-bath condominium located in a desirable Diamond Bar community. This home features new energy-efficient windows, stainless steel appliances, a private patio, an attached two-car garage, and guest parking. Conveniently located near supermarkets, shops, and the Country Estates area, with easy access to the 57 and 60 freeways. Families will also appreciate the highly rated local schools, including Diamond Bar High School. A great opportunity in one of Diamond Bar’s most sought-after communities.

  • Houzeo last checked: 2 hours ago
  • Listing updated: September 3, 2026 at 5:29 pm
  • Source: California Regional MLS-CA | MLS#: AR26144642 California Regional MLS-CA

Part of

Building
23640 Monument Cyn
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Property Details

  • Status

    Active

  • Type

    Condominium

  • No. of Stories

    1

  • County

    Los Angeles County

  • City

    Diamond Bar

  • Neighborhood

    --

  • Year Built

    1979

  • HOA Fees

    $365/mo

  • Finished Area

    1,191 sqft

  • Lot Size

    10.6 acres lot

  • Basement Area

    - sqft

  • MLS Name

    California Regional MLS

  • MLS Number

    AR26144642

  • MLS Status

    Active

  • Days on Market

    80

  • Cumulative Days on Market

    63

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HOA Management

Cimarron Oaks

HOA Fees

$365/ Monthly

Amenities

Amenities and services may be covered by one or multiple associations and service providers.

Tennis Tennis

Park Playground Park Playground

Spa Spa

Pool Pool

OutdoorCookingArea OutdoorCookingArea

Disclaimer: Amenities are based on third-party information and may vary; buyers must independently verify all amenities, as information is deemed reliable but not guaranteed.

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedrooms: 2

    Bathrooms: 2

Interior

  • Interior Features

    All Bedrooms Up

  • Sewer

    Unknown

  • Cooling

    Central Air

  • Heating

    Central

Utilities & Energy

  • Pool Features

    Community, Association

  • Laundry Features

    Laundry Room

  • Fireplace Features

    Living Room

  • Water Source

    Public

  • Association Amenities

    Outdoor Cooking Area, Playground, Pool, Spa Hot Tub, Tennis Courts

Other Features

  • Lot Features

    Zero To One Unit Acre, Near Park

  • Community Features

    Foothills, Park, Pool

Price History

DateEventPrice

07/02/2026

Source: mls_logoCalifornia Regional MLS-CA #AR26144642

Price Increased

$639,000 +0.63%

$537/sqft

07/02/2026

Source: mls_logoCalifornia Regional MLS-CA #AR26144642

Price Decreased

$635,000 -1.55%

$533/sqft

02/28/2026

Source: mls_logoCalifornia Regional MLS-CA #TR26034593

Price Decreased

$645,000 -0.77%

$542/sqft

02/24/2026

Source: mls_logoCalifornia Regional MLS-CA #TR26034593

Price Increased

$650,000 +0.31%

$546/sqft

02/24/2026

Source: mls_logoCalifornia Regional MLS-CA #TR26034593

Price Increased

$648,000 +0.47%

$544/sqft

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Based on information from California Regional Multiple Listing Service, Inc. as of Sep 21, 2026, 10:45AM and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Information being provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. This website may not include listings or property addresses of sellers who have directed their listing brokers to withhold their listing or their property address from display on the Internet. © 2026 California Regional Multiple Listing Service. All Rights Reserved.

Advertising Broker: William Johnson DRE #01463271 | William Johnson Brokerage

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