Mark Posey

Waldorf MD

Greenmark Real Estate

64 Closed Sales

$21.4M Total Value

$105K - $1.4M Price Range

$333.9K Average Price

Prior 5 years

About Mark

Experienced Broker with a demonstrated history of working in the real estate industry. Skilled in Sellers, Land Development, Real Estate Development, Brokerage, and Lease Negotiations. Strong finance professional with a Master of Professional Studies focused in Real Estate Finance from Georgetown University.

Home Types: Lot/Land, House, Commercial

Years of Experience: 15

Education: Georgetown University, Master of Professional Studies, Real Estate Finance St. Mary's College of Maryland, Bachelor of Arts, Economics

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	2
Total Value	$1,425,000
Average Sale Price	$712,500
Price Range	$175K - $1.3M

Seller Deals
Total Deals	14
Total Value	$5,644,600
Average Sale Price	$403,186
Price Range	$115K - $1.4M

Buyer Deals
Total Deals	2
Total Value	$560,000
Average Sale Price	$280,000
Price Range	$280K - $280K

Seller Deals
Total Deals	57
Total Value	$18,434,800
Average Sale Price	$323,418
Price Range	$105K - $1.4M

Buyer Deals
Total Deals	7
Total Value	$2,935,900
Average Sale Price	$419,414
Price Range	$199K - $1.4M

5 Year View

Neighborhoods Mark is Experienced In

Newburg

8 Sales
Nanjemoy

6 Sales

Mark's Recent Active Listings

$624,900
- 4 Beds
- 3.5 Baths
- 2,374 Sq Ft
9 Candleberry Dr

La Plata, MD
PRICE IMPROVEMENT | BRAND NEW CONSTRUCTION | MOVE-IN READY Ideally situated off Oak Avenue in the heart of Downtown La Plata, this charming neighborhood features just eight homesites. This newly completed four-bedroom, 3.5-bath home offers a host of high-end upgrades, including a gourmet kitchen with custom cabinetry, granite countertops, and upgraded bathroom vanities. Additional highlights

Mark Posey Greenmark Real Estate

$475,000
- Land
- 178 Acres
- $2,675 per Acre
0 Deer Farm Place

La Plata, MD
177.5730-acre recreational property for sale in La Plata, Maryland. Perfect property for hunting, ATVs, and many other recreational uses. Please call for additional information. A boundary survey is available upon request and in documents. Shown by appointment only. Hunt Group currently leases the property. Please do not access the property without prior authorization from Greenmark Real Estate.

Mark Posey Greenmark Real Estate

$65,000
- Land
- 1 Acre
- $65,000 per Acre
12975 Shiloh Church Rd

Newburg, MD
A 1-acre residential building lot with a recorded perc, no HOA, and ready to build. Sewage easement plat and survey are available upon request. Please call for additional information or to schedule a private showing.

Mark Posey Greenmark Real Estate

$175,000
- Land
- 4.83 Acres
- $36,232 per Acre
24645 Springhill Ln

Leonardtown, MD
Breton Knolls is a 24-lot subdivision, conveniently located in Leonardtown, featuring lot sizes from 1 - 7 acres. Bring your own builder or ask us about one of our preferred builders. Breton Knolls HOA is $300 annually with an initial capital contribution of $500 per lot. Please contact us for additional information or to schedule a private showing.

Mark Posey Greenmark Real Estate

$175,000
- Land
- 8 Acres
- $23,087 per Acre
22501 Bull Rd

Leonardtown, MD
Price Reduction! Only 5 lots left! Breton Knolls is a 24 lot subdivision in Leonardtown of 1-7.5 acre lots. HOA of $300 annually with a $500 initial capital contribution

Mark Posey Greenmark Real Estate

$65,000
- Land
- 0.88 Acre
- $73,864 per Acre
0 Shiloh Church Rd

Unit MDCH2009118

Newburg, MD
0.88-acre residential building lot with a recorded perc located in a rural setting in Newburg, MD. Located at the corner of Shiloh Church Road & Little How Place. Please call for additional information or to schedule a private showing.

Mark Posey Greenmark Real Estate

$125,000
- Land
- 7 Acres
- $18,116 per Acre
3370 Poseytown Rd

Nanjemoy, MD
6.90 +/- acre directly on Poseytown Road with approved/recorded perc and no HOA/Covenants. Use our preferred builder or bring your own. Please call for additional information.

Mark Posey Greenmark Real Estate

$134,900
- Land
- 7 Acres
- $18,279 per Acre
11510 Mill Run Rd

Newburg, MD
7.3769 +/- acre buildable lot with a recorded perc ready to build your dream home. Please call for additional information or to schedule a private showing. The record plat and sewage easement plat are available upon request.

Mark Posey Greenmark Real Estate

$250,000
- Land
- 0.23 Acre
- $1,086,957 per Acre
107 Howard St

La Plata, MD
10,018 Square Foot (0.23 Acre) Parcel on Howard Street in the Heart of La Plata. Property is Zoned CB (Central Business) with Extensive Plans to Construct a 6,300 SF Three Story Building with 15 Parking Spaces. Plans include Two (2) Apartments on Top Floor and Office Space on First and Second Floors. Call for details or additional information.

Mark Posey Greenmark Real Estate

Recently Sold

$1,250,000

Sold Jan 14, 2026
- 3 Beds
- 3 Baths
- 3,747 Sq Ft
24991 Briscoe Rd

Hollywood, MD
- $334/SF
- 0 Days On Market
- Current Est. Value $1M
Mark Posey Greenmark Real Estate

$175,000

Sold Dec 18, 2025
- Land
- 1.87 Acre Lot
40533 Breton Knolls Ct

Leonardtown, MD
- 1,153 Days On Market
- Current Est. Value $363K
Mark Posey Greenmark Real Estate

$339,900

Sold Feb 7, 2025
- 3 Beds
- 1.5 Baths
- 1,157 Sq Ft
1016 Stone Ave

Waldorf, MD
- $294/SF
- 30 Days On Market
- Current Est. Value $350K
Mark Posey Greenmark Real Estate

$1,400,000

Sold Jan 31, 2025
- 5 Beds
- 4 Baths
- 8,293 Sq Ft
8880 Mitchell Rd

La Plata, MD
- $169/SF
- 160 Days On Market
- Current Est. Value $1M
Mark Posey Greenmark Real Estate

$200,000

Sold Oct 18, 2024
- Land
- 5.35 Acre Lot
40557 Breton Knolls Ct

Leonardtown, MD
- 5% Below List
- 720 Days On Market
- Current Est. Value $934K
Mark Posey Greenmark Real Estate

$589,900

Sold Sep 6, 2024
- 4 Beds
- 3.5 Baths
17 Candleberry Dr

La Plata, MD
- 60 Days On Market
- Current Est. Value $580K
Mark Posey Greenmark Real Estate

$589,900

Sold Aug 29, 2024
- 4 Beds
- 3.5 Baths
21 Candleberry Dr

La Plata, MD
- 59 Days On Market
- Current Est. Value $578K
Mark Posey Greenmark Real Estate

$195,000

Sold Apr 15, 2024
- Land
- 1.78 Acre Lot
24668 Springhill Ln

Leonardtown, MD
- 3% Above List
- 503 Days On Market
- Current Est. Value $937K
Mark Posey Greenmark Real Estate

$212,000

Sold Apr 8, 2024
- Land
- 5.06 Acre Lot
24633 Springhill Ln

Leonardtown, MD
- 2% Above List
- 503 Days On Market
- Current Est. Value $788K
Mark Posey Greenmark Real Estate

Awards and Designations

NAR - National Association of Realtors
GRI - Graduate REALTOR Institute

Agent License: Virginia 0225235151 Maryland 639173 District of Columbia BR200201348

Mark Posey

(240) 607-5146

Greenmark Real Estate

(240) 607-5146

Homes for Sale by City

Mark Posey

About Mark

Transaction History

Seller Deals

Seller Deals

Buyer Deals

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods Mark is Experienced In

Mark's Listings and Deals

Mark's Recent Active Listings

Recently Sold

Awards and Designations