For Sale
Single family home for sale at 21 Keystone Dr, Gaithersburg, MD 20878 | MLS# MDMC2258154 | Listing updated on 2026-10-02
Photo 1 of Single family home for sale at 21 Keystone Dr, Gaithersburg, MD 20878 | MLS# MDMC2258154 | Listing updated on 2026-10-02
Photo 2 of Single family home for sale at 21 Keystone Dr, Gaithersburg, MD 20878 | MLS# MDMC2258154 | Listing updated on 2026-10-02
Photo 3 of Single family home for sale at 21 Keystone Dr, Gaithersburg, MD 20878 | MLS# MDMC2258154 | Listing updated on 2026-10-02
Photo 4 of Single family home for sale at 21 Keystone Dr, Gaithersburg, MD 20878 | MLS# MDMC2258154 | Listing updated on 2026-10-02
100+
Beds Icon

Street View

$900,000

Monthly Est:$4,480

  • Beds Icon5 Beds
  • Beds Icon
    5 Baths
  • Beds Icon2,930sqft

21 Keystone Dr, Gaithersburg, MD 20878

$4,480/moEst:

Get Pre-Approved

  • Single Family Residence

  • Built in 1974

  • $-- HOA

  • 9,529 sqft lot

  • $307/sq.ft

Description

Welcome to this beautifully updated Gaithersburg home, ideally located near Seneca Creek State Park and Clopper Lake, Rio, and Downtown Crown, with convenient access to shopping, dining, recreation, and major commuter routes. Extensive improvements completed in 2019 include replacement of the plumbing, electrical updates, a new HVAC system, driveway, roof with new plywood and shingles, and exterior walls upgraded with new plywood, siding, and trim. All bathrooms were fully renovated in 2019.

Gas line was installed in 2019 that connects water heater, stove and back yard grill.

The outdoor spaces are designed for everyday enjoyment, featuring backyard stonework and a porc
h completed in 2019. A storage structure was added in 2022, along with artificial turf and fencing. The basement offers additional possibilities, with rough ins behind the wall for a future wet bar and laundry area. The water heater will be replaced. A move-in-ready home with significant updates in a prime Gaithersburg location!

  • Houzeo last checked: 14 minutes ago
  • Listing updated: October 2, 2026 at 4:17 am
  • Listing Provided by: Piedad Suarez (703) 855-9915 | Spring Hill Real Estate, LLC. (703) 891-4514
  • Source: Bright MLS-NJ | MLS#: MDMC2258154 Bright MLS-NJ

Property Details

  • Status

    Active

  • Type

    Single Family Residence

  • No. of Stories

    -

  • County

    Montgomery Md County

  • City

    Gaithersburg

  • Neighborhood

    --

  • Year Built

    1974

  • HOA Fees

    -

  • Finished Area

    2,930 sqft

  • Lot Size

    9,529 sqft lot

  • Basement Area

    - sqft

  • MLS Name

    Bright MLS

  • MLS Number

    MDMC2258154

  • MLS Status

    ACTIVE-BRIGHT

  • Days on Market

    1

Continue Your Journey in App

Find your dream home, receive real-time updates, and many more!

Location

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedrooms: 5

    Bathrooms: 5

Interior

  • Cooling

    Other

  • Heating

    Central

  • Exterior Features

    Play Area, Play Equipment, Bbq Grill

  • Sewer

    Public Sewer

  • Appliances

    Built In Microwave, Dishwasher, Disposal

  • Interior Features

    Floor Plan Traditional

  • Flooring

    Hardwood

Construction

  • Year Built

    Year Built: 1974

  • Home type

    Single Family Residence

  • Roof

    Architectural Shingle

  • Construction Materials

    Frame

  • Architectural Style

    Colonial

  • Foundation Details

    Block

Utilities & Energy

  • Water Source

    Public

  • Parking Features

    Asphalt Driveway

  • Basement

    Connecting Stairway, Fully Finished, Improved, Interior Access, Sump Pump

Other Features

  • Patio And Porch Features

    Porch, Patio, Terrace

  • Subdivision Name

    West Riding

Price History

DateEventPrice

10/02/2026

Source: mls_logoBright MLS-NJ #MDMC2258154

Listed for Sale

$900,000

$307/sqft

09/30/2026

Source: mls_logoBright MLS-NJ #MDMC2258154

Coming Soon

$900,000 +91.49%

$307/sqft

02/28/2019

Source: mls_logoBright MLS-NJ #MDMC200236

Sold

$470,000

$160/sqft

Nearby Homes

Based on information from Bright MLS through Oct 09, 2026, 12:00PM. Listing information is from various brokers who participate in the Bright MLS IDX program and not all listings may be visible on the site. The property information being provided on or through the website is for the personal, non-commercial use of consumers and such information may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Some properties which appear for sale on the website may no longer be available because they are for instance, under contract, sold or are no longer being offered for sale. Property information displayed is deemed reliable but is not guaranteed. 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. © 2026 Bright MLS, Inc. All Rights Reserved. Click here for more information

Advertising Broker: Joe Hawkins | Hawkins Real Estate Services