518 Calvin Lane Rockville, MD $ 949,000
518 Calvin Lane
$ 949,000
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518 Calvin Lane

Rockville, MD, 20851
$ 949,000
Bedrooms4 Baths3.1 Sq 4,455

Monthly Estimate*

$ 5,843

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Single Family Home for sale in Rockville, MD

for $949,000 with 4 bedrooms and 3 full baths, 1 half bath. This 4,455 square foot home was built in 1953 on a lot size of 0.19.

Welcome to this rare and expansive 4,400+ sq ft home in the desirable Twinbrook neighborhood, offering an exceptional opportunity to own significantly more space than typically available in the area. Completely rebuilt in 2007 and thoughtfully updated, this move-in ready residence features three full levels above ground, an open and functional layout, and a private setting backing directly to parkland. The main level showcases hardwood floors, a dramatic two-story foyer, a dedicated home office, and generously sized living and dining spaces ideal for both everyday living and entertaining. The open-concept kitchen is the centerpiece of the home, complete with granite countertops, marble backsplash, a large center island with second sink and wine refrigerator (2022), and recent appliance updates (2024). The kitchen flows seamlessly into the family room with a gas fireplace and access to the backyard and patio. Upstairs, the spacious owners suite offers a true retreat with its own fireplace, dual walk-in closets, and a well-appointed bath with soaking tub and double shower. Additional two bedrooms are bright and well-sized, with a convenient upper-level laundry room. The top level provides a versatile fourth bedroom with a full bath and bar areaideal for guests, a home gym, or entertainment. Recent updates include fresh interior paint in most rooms (2025), a new roof (2025), and exterior paint (2018). A detached two-car garage and manageable yard with recent landscaping add to the homes appeal. Backing to parkland with a playground, tennis courts, and open green space, and within walking distance to Croydon Creek Nature Center, Glenview Mansion, and the F. Scott Fitzgerald Theatre, this home combines space, privacy, and convenience. Metro access via Washington Metro Red Line stations is just minutes away. A unique opportunity to own one of the largest homes in the neighborhoodoffering space, flexibility, and value that is hard to find at this price point.

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Single Family Active

Price

$ 949,000

Bedrooms

4

Full Bath

3

Half Bath

1

Property Type

Single Family

Taxes

$ 13,185

Style

Colonial

Lot Size

0.19

Year Built

1953

Town/City

Rockville

County/Region

Montgomery

MLS | Web ID

MDMC2210784

Features
General
Living Area 4455
Sewer Public Sewer
Heating Forced Air
Cooling Central A/C Ceiling Fan(s)
Possession Settlement
Roof Architectural Shingle
Appliances Built-In Range Cooktop Dishwasher Disposal Dryer Exhaust Fan Extra Refrigerator/Freezer Oven/Range - Gas Refrigerator Stainless Steel Appliances Stove Washer
Zoning R60
Garage Spaces 2.00
Architectural Style Colonial
Construction Materials Frame
School District MONTGOMERY COUNTY PUBLIC SCHOOLS
Year Built 1953
View Park/Greenbelt
Levels 3
Tax Year 2025
Ownership Fee Simple
Cool Fuel Electric
Municipality City of Rockville
Accessibility None
County MONTGOMERY
New Construction N
Property Type Residential
HOA N
Subdivision Name TWINBROOK
Garage Y/N Y
Water Access Y/N N
Other Structures Above Grade Below Grade
Full Baths 3
Status ACTIVE
Directions East on First Street right on Baltimore right on Gladstone left on Calvin.
City ROCKVILLE
Senior Community Y/N N
Lot Size Units Square Feet
Lot Size Square Feet 8327.00
Tax Annual Amount 13185.0
Structure Type Detached
Condo/Coop Association fee Y/N N
Bathrooms Count Main Level 1.00
Price Per Sq Ft Total AG 213.02
Lease Considered Y/N N
Vacation Rental Y/N N
Standard Status Active
Year Built Source Assessor
Legal Subdivision TWINBROOK
Tax Lot 16
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Interior
Interior Amenities Bathroom - Soaking Tub Bathroom - Walk-In Shower Breakfast Area Carpet Ceiling Fan(s) Chair Railings Crown Moldings Family Room Off Kitchen Floor Plan - Open Formal/Separate Dining Room Kitchen - Eat
Heating Fuel Natural Gas
Flooring Carpet Ceramic Tile Hardwood
Total Fireplaces 2
Fireplace Features Gas/Propane
Hot Water Electric
Basement (Y/N) N
Heating Y/N Y
Fireplace Y/N Y
Above Grade Finished Area 4455
Half Baths 1
Central Air Y/N Y
Total Bedrooms 4
Below Grade Finished Area 0
Room Type Living Room Dining Room Primary Bedroom Bedroom 2 Bedroom 3 Bedroom 4 Kitchen Family Room Office
Below Grade Finished Area Unit Type Square Feet
Below Grade Finished Area Source Assessor
Above Grade Finished Area Source Assessor
Above Grade Finished Area Unit Type Square Feet
Total Baths 4
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Exterior
Pool No Pool
Lot Features Backs - Parkland Cleared Front Yard Landscaping Level Premium Private Rear Yard Trees/Wooded
Water Source Public
Garage Features Garage - Front Entry Garage Door Opener
Type of Parking Detached Garage Driveway
Foundation Details Crawl Space
Water View Y/N N
Lot Size Acres 0.19
Lot Size Source Assessor
Waterfront Y/N N
Land Assessed Value 243100.00
Navigable Water Y/N N
Water Oriented Y/N N
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Internal Only
Street Number 1 518
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* Excluded Features
List By
Assist 2 Sell Buyers And Sellers

Broker

lkeenan@assist2sell.com

Email

Affordability Calculator

$6,942
Per Month
84%
16%
0%
Monthly Principal & Interest
$5,843
Monthly Property Taxes
$1,099
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
3533413 Elementary School
3533471 Middle School
Unknown High School High School
Pricing History
DatePricePrice ChangeDescription
3/5/2026$949,000 -2.67% Price Down
12/22/2025$975,000 Listed Price

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518 Calvin Lane, Rockville, MD, 20851 is a Single Family Home for sale at $949,000 with 4,455 sqft and a lot size of 0.19. 518 Calvin Lane has 4 bedrooms, 3.1 baths, and was built in 1953. The property's zip code is 20851 which is in Rockville, MD