Planning board greenlights last piece of 700-unit Upper Marlboro project 20 years in the making.500-acre project, dubbed Locust Hill, started its entitlement process with the county roughly two decades ago.
Prince George’s County records show Phase 2 covers about 160.5 acres and received Planning Board approval with conditions in December 2025. In January 2026, the County Council, sitting as the District Council, waived its election to review, making the Planning Board decision final.
The development is generally located north and south of Oak Grove Road, between Church Road and the Collington Branch/Leeland Road area of Upper Marlboro. The original comprehensive plan involved approximately 503.5 acres.
There are some substantial site constraints. Planning documents identify Marlboro clay, steep/topographically challenging areas, environmentally sensitive areas, an existing cemetery, the planned MC-600 roadway and proximity to the CSX railroad.
Construction is substantial enough that Delmarva Site Development Inc describes its Locust Hill work as involving more than 3 million cubic yards of earth movement.
The approximately 500-acre Locust Hill development in Upper Marlboro is moving closer to full buildout after nearly two decades in Prince George’s County’s development approval process. Plans call for 706 homes, including single-family detached homes, carriage homes and townhouses. Construction is already underway on the first phase, while approvals have continued for subsequent phases. Locust Hill — what is planned portion Homes Status/details
Phase 1. 335, 285 detached homes + 50 attached carriage homes
Phase 2. 210 Single-family detached homes; approved with associated infrastructure and a public neighborhood park
Phase 3. 161 Proposed single-family attached/townhouse lots.
Overall 706 Mix of detached, carriage and townhouse units.
Washington Business Journal
The map labeling is incorrect but couldn’t find another map that displayed the development.
About the Author
