Green Initiatives

Green Seal Certified Silver

Established in 1888, San Diego’s legendary Hotel del Coronado is proud to be a pioneer in the sustainable hospitality movement. The Del became Green Seal certified on March 28, 2011, and in 2016 was the first historic hotel to achieve a Silver Level Green Seal Certification.

In accordance to Green Seal’s environmental management system, Hotel Del has made significant progress against the four pillars: climate change, waste, natural resources and health and well being – achieving higher stands of care and stewardship for the environment, while delivering exceptional guest service.

Please see below to learn more about our individual programs and sustainability efforts resort wide.

  • All paper, cardboard, wood pallets, plastic containers, aluminum cans and glass are separated and recycled resort-wide.
  • Outdoor trash cans have been replaced with dual-use receptacles (one side for recyclables and the other for non-recyclable trash) in an effort to encourage recycling by day visitors and guests.
  • All kitchen fry oil used in the Food & Beverage outlets and Culinary department are  recycled and used in the production of biofuels.
  • 75 tons of green waste is recycled annually.
  • All batteries, florescent lights, computers and other items that require special handling are discarded appropriately to keep these items out of landfills.
  • The resort donates leftover soap and bottled amenities to Clean the World, an organization that recycles and distributes these items to impoverished people world-wide.
  • All 757 guestrooms on property use energy-efficient compact florescent lights, saving over 640,000 kilowatts of power annually.
  • The Del implemented a state-of-the-art energy management system that controls the heating, ventilation and air-conditioning and a majority of the property’s lighting in order to conserve energy and preserve resources.
  • The Facilities Team installed light timers and sensors in all guestrooms, meeting areas and back-of-house areas to further conserve energy.
  • Most guestrooms feature ceiling fans to help cut back on air conditioning usage.
  • The Del formed a Sustainability Steering Committee, involving staff from all departments, to meet regularly to evaluate current programs and make recommendations.
  • Irrigation systems have state-of-the-art programmers and the sprinklers all have low-flow, high efficiency heads.
  • The resort works with a leading pest control company to reduce the use of chemicals for pest and weed control.
  • The Culinary team promotes local farmers and fishermen as much as possible and takes steps to control and minimize food waste for all meals and functions.
  • An on-site herb garden is used for fresh fruit, vegetables and herbs.
  • The Housekeeping department utilizes vacuum cleaners specifically designed by the CRI (Carpet and Rug Institute) to reduce indoor air pollutants.
  • Housekeeping’s basic chemical package is Green Seal Certified.
  • Overall, the resort has lowered the inventory of chemicals and hazardous substances as well as stored them in a controlled environment.
  • Discarded linens are converted into cleaning rags and cook aprons by A&E Textile Recovery Inc.
  • The facilities team switched to Zero VOC paint throughout the hotel property.
  • The marketing department uses soy inks and Forest Stewardship Council (FSC) certified paper when creating resort collateral.
  • In 2018, the property committed to eliminating the use of plastic straws as part of Hilton’s Travel With Purpose initiative.

Management also recognizes that guests have a role in the conservation efforts. Therefore, guests are encouraged to minimize water and energy consumption by refraining from having towels, sheets, etc. changed every day helping to reduce water consumption. We have estimated an annual water reduction of over 663,000 gallons with this cooperative program. Guests are also reminded to turn off air conditioning and lighting when not in the room.

The Green Seal Standard for Hotels and Lodging Properties, GS-33, is one of the most robust environmental standards in the hospitality industry. In order to receive certification, a hotel must meet and adhere to stringent standards. These include requirements in waste management, energy efficiency, water conservation, wastewater management and green procurement. A certified property’s records, processes and procedures are evaluated and an on-site audit of the property is conducted. Certified hotels submit to annual monitoring to assure continued compliance. For more information, visit