$706,000
SOLD AUG 15, 2025

31 Cullinan Dr Gaithersburg, MD 20878

4 Beds
3.5 Baths
2,308 Sq Ft
10,302 Sq Ft Lot

Recently Sold

$306 Per Sq Ft

5% Above List Price

9 Days on Market

Highlights

  • Scenic Views
  • 0.24 Acre Lot
  • Recreation Room
  • Diamond Elementary School Rated A
  • Colonial Architecture
  • Wood Flooring

About This Home

As of August 2025

Welcome Home to 31 Cullinan Drive – A Rare Gem in a Prime Location!
Tucked away at the end of a peaceful street in the sought-after West Riding & Diamond Courts community, this 4-bedroom, 3.5-bath home sits on a premium lot just shy of a 1⁄4 acre—offering space, privacy, and charm. Enjoy your morning coffee or evening wind-down on the screened-in back porch, a serene space overlooking the fenced backyard with lush privacy landscaping, adjacent to a quiet greenspace.
Inside and outside, the home has been freshly painted, providing the next owner with a palette to customize to their liking. Move right in, though! Key updates include:
Newer roof with architectural shingles, updated windows on the main and upper levels, and a
Carrier HVAC system (2013). The second garage bay was added by the current owner along with the fabulous screened-in porch.
The cozy lower level features a charming brick hearth fireplace, ideal for family movie nights and games. With four generous bedrooms upstairs—including the primary suite—and multiple living areas throughout, there’s plenty of space to spread out, grow, and thrive.
And the location? It simply checks all the boxes. With NO HOA and all the benefits of living within the City of Gaithersburg, you’re walking distance to Diamond Elementary School, Diamond Farm Park, and have access to the Seneca Creek State Park trail system. You're also just minutes from the shops and restaurants of Quince Orchard Plaza and the Kentlands, and a short commute to major employers like NIST, MedImmune/AstraZeneca, Novavax, and more.
For commuters, the I-270 interchange, MARC train station, and Shady Grove Metro bus park-and-ride are all within a 10-minute drive. 31 Cullinan Drive is a rare combination of indoor and outdoor space and location—ideal for anyone ready to plant roots. Don’t miss your opportunity to call it home!

Last Agent to Sell the Property

Elizabeth Korte

(240) 994-3128 lizkortesellshouses@gmail.com Samson Properties License #0225262154 Listed on: 06/27/2025

Samson Properties

Last Buyer's Agent

Bryan Low

bryan@darthomes.com RE/MAX Realty Group

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $6,218

Year Built

  • Built in 1973

Lot Details

  • 10,302 Sq Ft Lot
  • No Through Street
  • Property is zoned R90

Home Design

  • Colonial Architecture
  • Brick Exterior Construction
  • Block Foundation

Interior Spaces

  • Property has 2 Levels
  • Wet Bar
  • Built-In Features
  • Ceiling Fan
  • Fireplace With Glass Doors
  • Fireplace Mantel
  • Window Treatments
  • French Doors
  • Entrance Foyer
  • Family Room
  • Living Room
  • Dining Room
  • Recreation Room
  • Workshop
  • Wood Flooring
  • Scenic Vista Views
  • Finished Basement
  • Basement Fills Entire Space Under The House
  • Storm Doors

Kitchen

  • Eat-In Kitchen
  • Electric Oven or Range
  • Microwave
  • Dishwasher
  • Disposal

Bedrooms and Bathrooms

  • 4 Bedrooms
  • En-Suite Primary Bedroom
  • En-Suite Bathroom

Laundry

  • Laundry Room
  • Dryer
  • Washer

Parking

  • 1 Parking Space
  • 1 Attached Carport Space
  • Off-Street Parking

Outdoor Features

  • Patio
  • Shed

Schools

  • Diamond Elementary School
  • Lakelands Park Middle School
  • Northwest High School

Utilities

  • Forced Air Heating and Cooling System
  • Vented Exhaust Fan
  • Natural Gas Water Heater

Community Details

  • No Home Owners Association
  • West Riding Subdivision

Listing and Financial Details

  • Tax Lot 21
  • Assessor Parcel Number 160901521085

Home Details

Home Type

Single Family

Est. Annual Taxes

$6,218

Year Built

Built in 1973

Lot Details

0

Listing Details

  • Property Type: Residential
  • Structure Type: Detached
  • Architectural Style: Colonial
  • Ownership: Fee Simple
  • New Construction: No
  • Story List: Lower 1, Main, Upper 1
  • Year Built: 1973
  • Automatically Close On Close Date: No
  • Remarks Public: Welcome Home to 31 Cullinan Drive – A Rare Gem in a Prime Location! Tucked away at the end of a peaceful street in the sought-after West Riding & Diamond Courts community, this 4-bedroom, 3.5-bath home sits on a premium lot just shy of a ¼ acre—offering space, privacy, and charm. Enjoy your morning coffee or evening wind-down on the screened-in back porch, a serene space overlooking the fenced backyard with lush privacy landscaping, adjacent to a quiet greenspace. Inside and outside, the home has been freshly painted, providing the next owner with a palette to customize to their liking. Move right in, though! Key updates include: Newer roof with architectural shingles, updated windows on the main and upper levels, and a Carrier HVAC system (2013). The second garage bay was added by the current owner along with the fabulous screened-in porch. The cozy lower level features a charming brick hearth fireplace, ideal for family movie nights and games. With four generous bedrooms upstairs—including the primary suite—and multiple living areas throughout, there’s plenty of space to spread out, grow, and thrive. And the location? It simply checks all the boxes. With NO HOA and all the benefits of living within the City of Gaithersburg, you’re walking distance to Diamond Elementary School, Diamond Farm Park, and have access to the Seneca Creek State Park trail system. You're also just minutes from the shops and restaurants of Quince Orchard Plaza and the Kentlands, and a short commute to major employers like NIST, MedImmune/AstraZeneca, Novavax, and more. For commuters, the I-270 interchange, MARC train station, and Shady Grove Metro bus park-and-ride are all within a 10-minute drive. 31 Cullinan Drive is a rare combination of indoor and outdoor space and location—ideal for anyone ready to plant roots. Don’t miss your opportunity to call it home!
  • Special Features: VirtualTour
  • Property Sub Type: Detached

Interior Features

  • Appliances: Dishwasher, Disposal, Dryer, Exhaust Fan, Microwave, Oven/Range - Electric, Refrigerator, Washer
  • Interior Amenities: Kitchen - Table Space, Dining Area, Built-Ins, Window Treatments, Primary Bath(s), Wet/Dry Bar, Wood Floors
  • Fireplace Features: Equipment, Fireplace - Glass Doors, Mantel(s)
  • Fireplaces Count: 1
  • Fireplace: Yes
  • Door Features: French, Storm
  • Foundation Details: Block
  • Levels Count: 2
  • Room List: Living Room, Dining Room, Primary Bedroom, Bedroom 2, Bedroom 3, Bedroom 4, Kitchen, Family Room, Foyer, Laundry, Recreation Room, Workshop
  • Basement: Yes
  • Basement Type: Full, Fully Finished
  • Total Sq Ft: 2836
  • Living Area Sq Ft: 2308
  • Price Per Sq Ft: 353.77
  • Above Grade Finished Sq Ft: 1908
  • Below Grade Finished Sq Ft: 400
  • Below Grade Sq Ft: 528
  • Total Below Grade Sq Ft: 928
  • Above Grade Finished Area Units: Square Feet
  • Street Number Modifier: 31

Beds/Baths

  • Bedrooms: 4
  • Total Bathrooms: 4
  • Full Bathrooms: 3
  • Half Bathrooms: 1
  • Main Level Bathrooms: 1.00
  • Upper Level Bathrooms: 2
  • Lower Levels Bathrooms: 1
  • Upper Level Bathrooms: 2.00
  • Lower Levels Bathrooms: 1.00
  • Upper Level Full Bathrooms: 2
  • Lower Level Full Bathrooms: 1
  • Lower Level Full Bathrooms: 1
  • Main Level Half Bathrooms: 1

Exterior Features

  • Other Structures: Above Grade, Below Grade
  • Other Structures List: Shed
  • Construction Materials: Combination, Brick
  • Exterior Features: Secure Storage
  • View: Scenic Vista
  • Water Access: No
  • Waterfront: No
  • Water Oriented: No
  • Pool: No Pool
  • Tidal Water: No
  • Water View: No

Garage/Parking

  • Garage: No
  • Attached Carport Spaces: 1
  • Total Garage And Parking Spaces: 1
  • Type Of Parking: Off Street, Attached Carport

Utilities

  • Refuse: 172.63
  • Central Air Conditioning: Yes
  • Cooling Fuel: Electric
  • Cooling Type: Ceiling Fan(s), Central A/C
  • Heating Fuel: Natural Gas
  • Heating Type: Forced Air
  • Heating: Yes
  • Hot Water: Natural Gas
  • Sewer/Septic System: Public Sewer
  • Water Source: Public

Condo/Co-op/Association

  • Condo Co-Op Association: No
  • HOA: No
  • Senior Community: No

Fee Information

  • Front Foot Fee Pymt Freq: Annually

Schools

  • School District: MONTGOMERY COUNTY PUBLIC SCHOOLS
  • Elementary School: DIAMOND
  • Middle School: LAKELANDS PARK
  • High School: NORTHWEST
  • Elementary School Source: Listing Agent
  • Middle School Source: Listing Agent
  • School District Key: 121138126809
  • School District Source: Listing Agent
  • Elementary School: DIAMOND
  • High School: NORTHWEST
  • Middle Or Junior School: LAKELANDS PARK

Lot Info

  • Land Use Code: R
  • Lot Features: No Thru Street
  • Lot Size Acres: 0.24
  • Lot Size Units: Square Feet
  • Lot Sq Ft: 10302.00
  • Outdoor Living Structures: Patio(s)
  • Year Assessed: 2025
  • Zoning: R90
  • In City Limits: Yes

Rental Info

  • Lease Considered: No
  • Vacation Rental: No

Tax Info

  • Tax Annual Amount: 6218.00
  • Assessor Parcel Number: 160901521085
  • Tax Lot: 21
  • Tax Total Finished Sq Ft: 2308
  • County Tax Payment Frequency: Annually
  • Tax Year: 2024
  • Close Date: 08/15/2025

MLS Schools

  • School District Name: MONTGOMERY COUNTY PUBLIC SCHOOLS

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Jun 27, 2025
Closed on
Aug 15, 2025
Sold by
Carmosino Richard M
Bought by
Costello Matthew Kenneth and Costello Jennifer Sharlin
Seller's Agent
Elizabeth Korte
Samson Properties
Buyer's Agent
Bryan Low
RE/MAX Realty Group
List Price
$675,000
Sold Price
$706,000
Premium/Discount to List
$31,000
4.59%
Views
108

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
-28.99%
Original Mortgage
$506,000
Outstanding Balance
$506,000
Interest Rate
6.72%
Mortgage Type
New Conventional
Estimated Equity
$171,582

Purchase Details

Closed on
Aug 17, 2007
Sold by
Beatty Paul T
Bought by
Carmosino Richard M

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$52,000
Interest Rate
6.71%
Mortgage Type
Stand Alone Second

Purchase Details

Closed on
Aug 16, 2007
Sold by
Beatty Paul T
Bought by
Carmosino Richard M

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$52,000
Interest Rate
6.71%
Mortgage Type
Stand Alone Second
Source: Public Records

Range of Values:

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List Price
Sold Price
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Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Purchase History

Date Type Sale Price Title Company
Deed $706,000 Flynn Title
Deed $520,000 --
Deed $520,000 --
Source: Public Records

Mortgage History

Date Status Loan Amount Loan Type
Open $506,000 New Conventional
Previous Owner $52,000 Stand Alone Second
Previous Owner $416,000 Purchase Money Mortgage
Previous Owner $416,000 Purchase Money Mortgage
Source: Public Records

Property History

Date Event Price Change Sq Ft Price
08/15/2025 08/15/25 Sold $706,000 +4.6% $306 / Sq Ft
06/27/2025 06/27/25 For Sale $675,000 -- $292 / Sq Ft
Source: Bright MLS

Tax History Compared to Growth

Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $6,218 $476,267 -- --
2024 $6,218 $449,633 $0 $0
2023 $5,142 $423,000 $219,800 $203,200
2022 $4,960 $419,467 $0 $0
2021 $4,866 $415,933 $0 $0
2020 $4,866 $412,400 $219,800 $192,600
2019 $4,692 $399,933 $0 $0
2018 $4,533 $387,467 $0 $0
2017 $4,424 $375,000 $0 $0
2016 $4,543 $371,533 $0 $0
2015 $4,543 $368,067 $0 $0
2014 $4,543 $364,600 $0 $0
Source: Public Records

Agents Affiliated with this Home

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Map

Source: Bright MLS

MLS Number: MDMC2188050

Bright MLS

APN: 09-01521085