About Glenarden Hills Phase III Glenarden Hills, MD The final rental phase of the $110 million, six-phase Glenarden Hills master-planned community will add 158 brand-new, high-quality affordable apartments to the site. Phase III includes a mix of one-, two-, and three-bedroom units across 14 buildings available to residents at 30% to 60% of the Area Median Income. Twenty of the 158 total apartments will be available at market-rate rents. The initiative will also add a sports court, children’s pool, and lap pool to the project’s already robust community amenities.