TownePlace Suites by Marriott at Baltimore BWI Airport will received LEED Existing Building Certification for green retrofits and practices it has implemented. Among the hotel's eco-friendly initiatives: composting all breakfast waste to achieve zero waste, using sustainable and environmentally friendly cleaning products, replacing plumbing hardware with low-flow devices, and purchasing renewable energy wind credits to offset the hotel's carbon footprint.

The hotel's owners have another property on the LEED docket: Fairfield Inn & Suites Baltimore, located on the site of the former Baltimore Brewing Company, has a rain barrel made from the brewery's repurposed grain storage silo that's used to serve the hotel's landscaping irrigation needs.