18 E Diamond Ave, Gaithersburg, MD 20877
OFF MARKET

$688,800

Trulia Estimate
  • Studio
  • 1,716 sqft (on 0.29 acres)

18 E Diamond Ave, Gaithersburg, MD 20877

Olde Towne
Est. Refi. Payment $4,088/mo*
Refinance Your Home
Currently Off Market - Sold Nov 3, 2004 for $416,000

Home Value

Trulia Estimate
$689K
Since last month
Decreased$8K (-1.1%)
Since last year
Decreased$20K (-2.8%)
Since last sale
Increased$272K (+65.3%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +3% in the last 10 years
MonthEstimated value
2026
August 2026$688K
August 2026$688K
July 2026$696K
June 2026$718K
May 2026$728K
April 2026$716K
March 2026$707K
February 2026$708K
January 2026$690K
2025
2024
2023

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
101 Brookes Ave, Gaithersburg, MD
0.11
Single-Family Home
$510,000
04/10/26
5
3.5
1,645
7 Montgomery Ave, Gaithersburg, MD
0.41
Single-Family Home
$485,000
10/31/25
3
2
1,790
8 James St, Gaithersburg, MD
0.36
Single-Family Home
$475,000
06/30/26
3
2
1,360
402 Dogwood Dr, Gaithersburg, MD
0.41
Single-Family Home
$585,000
10/13/25
3
4
1,684
106 Hutton St, Gaithersburg, MD
0.42
Single-Family Home
$460,000
12/26/25
3
1
1,364
108 Hutton St, Gaithersburg, MD
0.44
Single-Family Home
$513,000
09/29/25
3
2
1,424
1 Montgomery Ave, Gaithersburg, MD
0.42
Single-Family Home
$645,000
07/24/26
4
1.5
1,843
10 Maryland Ave, Gaithersburg, MD
0.36
Single-Family Home
$540,000
12/03/25
4
4
3,094
118 Rolling Rd, Gaithersburg, MD
0.51
Single-Family Home
$520,000
11/13/25
3
2
2,040
112 Harmony Hall Rd, Gaithersburg, MD
0.60
Single-Family Home
$399,999
10/02/25
3
2.5
1,847

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
8 Russell Ave #201, Gaithersburg, MD 20877
0.03
$255,700
2
2
1,151
Off Market
8 Russell Ave #202, Gaithersburg, MD 20877
0.05
$269,800
2
2
1,071
Off Market
8 Russell Ave #206, Gaithersburg, MD 20877
0.05
$275,000
2
2
1,160
Recently Sold
8 Russell Ave #209, Gaithersburg, MD 20877
0.05
$244,000
2
2
1,181
Off Market
8 Russell Ave #409, Gaithersburg, MD 20877
0.05
$254,400
2
2
1,151
Off Market
101 Brookes Ave, Gaithersburg, MD 20877
0.11
$510,000
5
3.5
1,645
Recently Sold
16 Park Ave, Gaithersburg, MD 20877
0.13
$622,700
3
2.5
2,000
Off Market
108 Brookes Ave, Gaithersburg, MD 20877
0.16
$503,800
2
2
1,760
Off Market
106 Russell Ave, Gaithersburg, MD 20877
0.20
$599,900
5
3
2,708
For Sale
5 Lee St, Gaithersburg, MD 20877
0.21
$739,200
5
3.5
3,254
Off Market
13 Cedar Ave, Gaithersburg, MD 20877
0.23
$479,999
5
2
1,560
For Sale
9920 Walker Ave #5, Gaithersburg, MD 20877
0.26
$219,500
2
2
1,178
Off Market

Local Information

  • Map ViewExplore the area around 18 E Diamond Ave.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1899
0.29 acre lot
1,716 sqft
$401/sqft

About this House

This single-family home is located at 18 E Diamond Ave, Gaithersburg, MD. 18 E Diamond Ave is in the Olde Towne neighborhood in Gaithersburg, MD and in ZIP code 20877. This property has approximately 1,716 sqft of floor space. This property has a lot size of 0.29 acres and was built in 1899.
18 E Diamond Ave, Gaithersburg, MD 20877 is a studio, 1,716 sqft single-family home in Olde Towne, built in 1899. It last sold for $416,000 on Nov 3, 2004. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $688,800, with a rent estimate of $2,979/month.

Home Details for 18 E Diamond Ave

Interior Features

Levels, Entrance, & Accessibility
Stories: 2
Interior Details
Types of Rooms: Office
Heating & Cooling
Air Conditioning

Property Information

Year Built
Year Built: 1899
Property Type / Style
Property Type: Single Family Home

Community

Units in Building: 1

Lot Information

Lot Area: 0.29 acres

Price and Tax history

DateEventPrice
Nov 3, 2004
Source: N/A
Sold
$416,000

Market trends in Gaithersburg

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$553K
$8.33KMoM
Sale-to-List Price
100.0%
Price per sq ft
$282
$8MoM
Available listings
223
16MoM

Around this home

Neighborhood Overview

Olde Towne
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Olde Towne

At least 9 Trulia users voted on each feature.

  • 93 % Say it's walkable to restaurants

  • 89 % Say it's walkable to grocery stores

  • 89 % Say there's holiday spirit

  • 78 % Say there are sidewalks

  • 78 % Say parking is easy

  • 77 % Say it's dog friendly

  • 70 % Say streets are well-lit

  • 67 % Say kids play outside

  • 64 % Say yards are well-kept

  • 50 % Say they plan to stay for at least 5 years

  • 47 % Say car is needed

  • 45 % Say people would walk alone at night

  • 43 % Say neighbors are friendly

  • 43 % Say there's wildlife

  • 36 % Say it's quiet

  • 22 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Melannie V.
    "I love where I live very close to everything. I’m next to the train station close to the metro, and next to 270. It is very convenient. My building is very safe and secure. I don’t worry about my safety when I’m out. It is nice to walk your dog, there are so many people out on nice days. "
    8
    Flag
  • Trulia User
    "I have only lived here for a couple months. It has the quiet of a small town with the convenience of a city "
    0
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 18 E Diamond Ave

  • What is 18 E Diamond Ave estimated to be worth?
    Trulia's estimated value for 18 E Diamond Ave in Gaithersburg, MD is $688,800.
  • What is the price history for 18 E Diamond Ave?
    18 E Diamond Ave in Gaithersburg, MD last sold for $416,000 in November 2004.
  • Is Gaithersburg a buyer's or seller's market?
    Gaithersburg is currently a seller's market, based on recent for-sale activity.
  • What's the median sale price in Gaithersburg?
    The median sale price in Gaithersburg is $553K. That is down $8.33K from the prior month.
  • How big is the lot at 18 E Diamond Ave?
    The lot at 18 E Diamond Ave in Gaithersburg, MD is about 0.29 acres (12,501 sq ft).

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Apartments for Rent

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Off Market Homes Near 18 E Diamond Ave

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