Google street view image for 11840 Marmary Rd, Gaithersburg, MD 20878

Off Market Nov 1992 for $225K

$636,915

Est. refi paymentEst. refi $1,648/mo

—

•

2 ba

•

1,450

sq ft

11840 Marmary Rd, Gaithersburg, MD 20878

About this home

11840 Marmary Rd is a 1,450 square foot house on a 1 acre lot with 2 bathrooms. - it last sold on November 13, 1992 for $225,000. Based on Redfin's Gaithersburg data, we estimate the home's value is $636,915.

Single-familyProperty Type

1974Year Built

1 acresLot Size

$439Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$636,915

$412K since sold in November 1992$7,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.7% lower than the average sale price ($669K) of 6 comparable homes.

SOLD SEP 1, 2026
$695,250
A
4 beds2.5 baths2,252 sq ft
16716 Sioux Ln, Gaithersburg, MD 20878
SOLD JUN 16, 2026
$562,400
B
4 beds2 baths1,736 sq ft
11809 Longdraft Ct, Gaithersburg, MD 20878
SOLD AUG 26, 2026
$625,000
C
3 beds3 baths1,902 sq ft
11937 Bayswater Rd, Gaithersburg, MD 20878
SOLD APR 30, 2026
$534,900
D
3 beds2 baths1,834 sq ft
12141 Suffolk Ter, Gaithersburg, MD 20878
SOLD JUL 14, 2026
$773,580
E
4 beds3 baths2,156 sq ft
852 Diamond Dr, Gaithersburg, MD 20878
SOLD JUL 9, 2026
$820,000
F
4 beds2.5 baths1,952 sq ft
16013 Mills Orchard Dr, Gaithersburg, MD 20878

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Earn from this home

Sell

$598,271

Est. take-home

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Refinance

Est. cash available

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Market trends in 20878, MD

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.6%

0.3% MoM

Median sale price

$795K

$344 MoM

Avg. days on market

39d

5 days MoM

Recently sold homes

192

17 MoM

New listings for sale

COMING SOON
$377,900
2 beds2 baths1,177 sq ft
111 Timberbrook Ln #102, Gaithersburg, MD 20878
(240) 815-9040
COMING SOON
$519,900
3 beds2 baths1,730 sq ft
164 Chevy Chase St #164, Gaithersburg, MD 20878
(301) 602-3904
COMING SOON
$670,000
3 beds3 baths2,172 sq ft
15712 Cherry Blossom Ln, North Potomac, MD 20878
(301) 718-0010
COMING SOON
$264,990
2 beds1 bath1,026 sq ft
Gaithersburg, MD 20878
(888) 455-6040
$449,900
3 beds2.5 baths1,920 sq ft
27 Midline Ct, Gaithersburg, MD 20878
(240) 630-8689
$749,000
3 beds3.5 baths2,468 sq ft
13928 Mustang Hill Ln, North Potomac, MD 20878
(301) 490-5400
$160,000
1 bed1 bath1,032 sq ft
784 Quince Orchard Blvd Unit 784-P2, Gaithersburg, MD 20878
(301) 258-7757
$602,800
4 beds2 baths2,112 sq ft
11604 Ranch Ln, North Potomac, MD 20878
(770) 933-6678
COMING SOON
$475,000
4 beds3.5 baths1,518 sq ft
22 Wade Ct, Gaithersburg, MD 20878
(301) 441-1100
COMING SOON
$649,999
2 beds2.5 baths2,042 sq ft
254-B Market St E Unit 254B, Gaithersburg, MD 20878
(301) 424-0900
See all

Provided by Redfin

Sale history for 11840 Marmary Rd

Year

Property tax

Land + Additions

Assessment*

2025

$5,937 (+8.0%)

2024

$5,496 (+3.4%)

2023

$5,317 (+7.6%)

$231,500 + $238,200

$469,700

2022

$4,940 (+4.1%)

2021

$4,746 (+1.0%)

2020

$4,699 (+0.7%)

$220,500 + $214,200

$434,700

2019

$4,666 (+0.2%)

2018

$4,656 (+0.1%)

$220,500 + $211,300

$431,800

2017

$4,650 (+9.9%)

2015

$4,230 (+3.0%)

2014

$4,106 (+7.4%)

2013

$3,823 (+6.0%)

2012

$3,607 (+5.5%)

2011

$3,418

2010

$3,418 (+7.7%)

2009

$3,173

Tax history for 11840 Marmary Rd

Year

Property tax

Land + Additions

Assessment*

2025

$5,937 (+8.0%)

2024

$5,496 (+3.4%)

2023

$5,317 (+7.6%)

$231,500 + $238,200

$469,700

2022

$4,940 (+4.1%)

2021

$4,746 (+1.0%)

2020

$4,699 (+0.7%)

$220,500 + $214,200

$434,700

2019

$4,666 (+0.2%)

2018

$4,656 (+0.1%)

$220,500 + $211,300

$431,800

2017

$4,650 (+9.9%)

2015

$4,230 (+3.0%)

2014

$4,106 (+7.4%)

2013

$3,823 (+6.0%)

2012

$3,607 (+5.5%)

2011

$3,418

2010

$3,418 (+7.7%)

2009

$3,173

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Zoning and permits

Zoning
Permits

RE-2

Residential Estate - 2 Zone

The intent of the RE-2 zone is to provide designated areas of the County for large-lot residential uses. The predominant use is residential in a detached house.

Permitted uses

Include but are not limited to:

Agriculture-Other
Religious facility
Housing-Single unit
Housing-Senior
Infrastructure-Other
Public service
Kennel
Transportation-Other
Park & open space

Property details

Interior

Bathroom Information
# of Full Baths: 2

Heating & Cooling
Air Conditioning Type: Split System
Heating Type: Hot Air

Fireplace Information
# of Fireplaces: 1
Fireplace Type: 1 Story Brick
Has Fireplace

Exterior

Exterior Information
Building Construction Quality: Average
Exterior Wall: Brick
Building Type: Single Family

Property Information
Living Sq. Ft: 1,450
Building Sq. Ft: 1,450
# of Stories: 1
Stories Type: 1 Story With Basement
Legal Description: MARTHA & MARY CIVIL ACTION #39469

Parking & Garage Information
Parking Type: Detached Frame Garage
Garage/Parking Sq. Ft: 858
Garage / Carport Type: Detached Frame

Lot Information
# of Buildings: 1
Land Sq. Ft: 43,560
Acres: 1
Zoning Code: RE2
County Use Description: SINGLE FAMILY DETACH
State Use Description: RESIDENTIAL

Utility Information
Sewer Type: Private

Financial

Assessor Information
Assessment Year: 2026
Tax District County: 06

Public facts

Beds: —
Baths: 2.0
Sq. Ft.: 1,450
Stories: 1.0
Lot Size: 1 acres
Style: Single Family Residential
Year Built: 1974
Year Renovated: —
County: Montgomery County
APN: 06 00393256

Home facts updated by county records on Jul 17, 2026

Around this home

Schools

Diamond Elementary School

Public PreK-5 • Assigned • 0.4mi

9/10

Lakelands Park Middle School

Public 6-8 • Assigned • 1.5mi

6/10

Northwest High School

Public 9-12 • Assigned • 2.1mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

6/10 Heat Factor

7 days above 102° expected this year, 16 days in 30 years

4/10 Wind Factor

10% chance of strong winds in next 30 years

3/10 Air Factor

2 unhealthy days expected this year, 3 days in 30 years

Provided by First Street

Historical weather

Gaithersburg, MD • 20878

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9.3 hours in June and 4.1 hours in December, placing it below the U.S. average for solar exposure.

9.3 hrs

4.1 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$606,000 – $733,000

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Nearby similar homes

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OPEN SUN, 1PM TO 4PM

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New listings for sale in 20878

COMING SOON

$377,900

2 beds2 baths1,177 sq ft

111 Timberbrook Ln #102, Gaithersburg, MD 20878

(240) 815-9040

COMING SOON

$519,900

3 beds2 baths1,730 sq ft

164 Chevy Chase St #164, Gaithersburg, MD 20878

(301) 602-3904

COMING SOON

$670,000

3 beds3 baths2,172 sq ft

15712 Cherry Blossom Ln, North Potomac, MD 20878

(301) 718-0010

COMING SOON

$264,990

2 beds1 bath1,026 sq ft

Gaithersburg, MD 20878

(888) 455-6040

$449,900

3 beds2.5 baths1,920 sq ft

27 Midline Ct, Gaithersburg, MD 20878

(240) 630-8689

$749,000

3 beds3.5 baths2,468 sq ft

13928 Mustang Hill Ln, North Potomac, MD 20878

(301) 490-5400

$160,000

1 bed1 bath1,032 sq ft

784 Quince Orchard Blvd Unit 784-P2, Gaithersburg, MD 20878

(301) 258-7757

$602,800

4 beds2 baths2,112 sq ft

11604 Ranch Ln, North Potomac, MD 20878

(770) 933-6678

COMING SOON

$475,000

4 beds3.5 baths1,518 sq ft

22 Wade Ct, Gaithersburg, MD 20878

(301) 441-1100

Home values near 11840 Marmary Rd

Data from public records.

Address	Redfin Estimate
11830 Marmary Rd, Gaithersburg, MD 6 Beds \| 4 Baths \| 5000 Sq. Ft.	$1,030,759
11900 Marmary Rd, Gaithersburg, MD 4 Beds \| 1 Baths \| 1306 Sq. Ft.	—

Address	Redfin Estimate
11836 Marmary Rd, Gaithersburg, MD 3 Beds \| 2.5 Baths \| 2136 Sq. Ft.	$722,427
11820 Marmary Rd, Gaithersburg, MD - Beds \| 2.5 Baths \| 2776 Sq. Ft.	$704,197

Address	Redfin Estimate
11860 Marmary Rd, Gaithersburg, MD - Beds \| 2.5 Baths \| 2073 Sq. Ft.	$606,626
17000 Longdraft Rd, Gaithersburg, MD - Beds \| 2.5 Baths \| 2594 Sq. Ft.	$843,858

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