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MC
4630 Muncaster Mill Road, Rockville
$779K
4305 Bel Pre Road, Rockville
$799K
13804 Drake Drive, Rockville
$825K
17016 George Washington Drive, Rockville
$790K
134 Richard Ingle Way, Chester
$749K
205 Riverside Drive, Chester
$749K
121 Merlin Drive, Chester
$720K
13410 Dowlais Drive, Rockville
$735K

Marie Costello

Berkshire Hathaway HomeServices PenFed Realty

$2.4M

Closed volume

Rockville +2

Markets served

$350K–$1.5M

Price range

2025

Closing since

About Marie

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Production

3 deals since 2025

Sides

1 listing · 2 buyer

Licensed

MD

Expertise

◆ Buyer representation◆ Listing & selling

Transaction history

Closed deals 2025–2026.

Seller representation
Total value
$1.5M
Average sale price
$1.5M
Buyer representation
Total value
$920K
Average sale price
$460K
Price range
$350K–$570K

Where Marie works

Areas with the most closed transactions.

Rockville1 deals
Chester1 deals
Riva1 deals

Recently sold

Latest closings
1000 Herons Nest Way #402, Chester● Sold Jun 2026

$570K

2 bd · 3 ba · 1,900 sqft

1000 Herons Nest Way #402, Chester MD

Represented buyer · Cash

7 Big Oak Court, Rockville● Sold Mar 2026

$1.5M

4 bd · 4 ba · 3,558 sqft

7 Big Oak Court, Rockville MD

Represented seller

14 Butternut Road, Riva● Sold Aug 2025

$350K

2 bd · 1 ba · 676 sqft

14 Butternut Road, Riva MD

Represented buyer

Homes for sale in Rockville

Popular right now

Active listings in the markets this agent serves.

Marie Costello · Berkshire Hathaway HomeServices PenFed Realty | Mable