Office of Sustainability

What we do

The Office of Sustainability (OOS) works with partners around the City to improve quality of life in all Philadelphia neighborhoods, reduce the City’s carbon emissions, and prepare Philadelphia for a hotter, wetter future.

OOS is responsible for implementing Greenworks Philadelphia, the City’s comprehensive sustainability plan, which is made up of eight visions:

  • Accessible food and drinking water
  • Healthy outdoor and indoor air
  • Clean and efficient energy
  • Climate-prepared and carbon-neutral communities
  • Quality natural resources
  • Accessible, affordable, and safe transportation
  • Zero Waste
  • Engaged students, stewards, and workers


One Parkway Building
1515 Arch St., 13th Floor
Philadelphia, PA 19102

Greenworks on the Ground

The Greenworks on the Ground checklists show individuals, communities, and institutions (including businesses, schools, and houses of worship) how they can help make the Greenworks visions a reality.


  • May
    Community Climate Resilience Workshop
    9:00 am to 2:00 pm
    Penn State at the Navy Yard, 4960 S 12th St, Philadelphia, PA 19112, USA

    Community Climate Resilience Workshop

    May 31, 2018
    9:00 am to 2:00 pm, 5 hours
    Penn State at the Navy Yard, 4960 S 12th St, Philadelphia, PA 19112, USA

    How Climate Change Impacts Philadelphia's Neighborhoods

    According to the City of Philadelphia's Growing Stronger: Toward a climate-ready Philadelphia,  our changing climate shows that residents and infrastructure will be negatively impacted by: 

    • Increased frequency and severity of heat waves
    • Increased frequency and severity of storm events 
    • Flooding and other damage from rising sea levels 


    Planning Resilient Communities  

    Join community developers, designers, planners, and government officials as we explore what pathways we can introduce now and into the future to better address increased heating and cooling costs in extreme climate conditions, relief after natural disasters, and the impact of fires/flooding. 

    Green Building United is is excited to partner with Philadelphia Association of Community Development Corporations(PACDC) to present this Community Climate Resilience Workshop, aimed at increasing knowledge of resilience from the city scale down to the neighborhood level in Philadelphia. Experts will present information on how climate change is impacting communities, what resiliency means and looks like, and how communities can take action. Projects, policies, tools, and other cities will serve as references. 

    We invite urban planners, project managers, developers, community groups, and any interested community members to participate. No background knowledge or skillset is required - all are welcome! 

     Register here 

    Event Cost

    Member: $10*

    Non-member: $25 (Want to become a member? Join here!)

    *CDC Members - please contact Leah Wirgau or Pam Bridgeforth to receive a member discount code.  

  • Jun
    Carpenter's Woods Old Growth Forest Network Dedication Ceremony
    4:00 pm to 5:00 pm
    Ellet Street trail head at the intersection of Sherman and West Ellet Streets, Mt Airy

    Carpenter's Woods Old Growth Forest Network Dedication Ceremony

    June 5, 2018
    4:00 pm to 5:00 pm, 1 hour
    Ellet Street trail head at the intersection of Sherman and West Ellet Streets, Mt Airy
    Carpenter’s Woods section of Wissahickon Park has been chosen as Philadelphia County’s “Dedicated Forest” for the Old-Growth Forest Network. The Dedication ceremony will take place on Tuesday, June 5th at 4:00 pm at the Ellet Street trail head located at the intersection of Sherman and West Ellet Streets in Mount Airy. Dr. Joan Maloof, Founder and Director of this national organization, will give a talk and present us, the Friends of Carpenter’s Woods, with a plaque. This will be followed by an interpretive hike, led by Dr. Maloof, Edward Sibley Barnard, an author of Philadelphia Trees, and me. Additional information about the Old-Growth Forest Network may be found on their website As Philadelphia’s first bird sanctuary, established as such in 1921, Carpenter’s Woods continues to this day to host impressive and diverse species of both breeding and migratory birds, in large part due to its truly unusual concentration of ancient oaks and other trees. Designation as part of a national network dedicated to the preservation of old-growth forests will be a great honor not only for Carpenter’s Woods, but for our “green city” as a whole. We are truly fortunate to have such a gem of a park in our Mt. Airy community.
  • Jun
    It's a Green Thing Sustainability Fair
    1:00 pm to 5:00 pm
    West Laurel Hill Cemetery, 225 Belmont Ave, Bala Cynwyd, PA 19004, USA

    It's a Green Thing Sustainability Fair

    June 23, 2018
    1:00 pm to 5:00 pm, 4 hours
    West Laurel Hill Cemetery, 225 Belmont Ave, Bala Cynwyd, PA 19004, USA

    oin West Laurel Hill and the Lower Merion Conservancy for the 4th annual It’s A Green Thing Sustainability Fair. Bike, walk, or scooter your way over to the Cynwyd Trail to support local sustainable vendors, food trucks, live music and a beer garden by a local brewing company. This sustainability street fair will take place just inside the gates of West Laurel Hill Cemetery, at the Barmouth Station section of the trail and will showcase local artisans and businesses who are committed to making the world a greener place.

    Food trucks:

    • Smokin Tacos
    • The Spicy Belly
    • The Tot Cart
    • The Chilly Banana


    • Vellum St. Soap Company

    This year’s family-friendly street festival will be held next to the Barmouth entrance, right inside the gates from the Cynwyd Heritage Trail.

    This event is free and open to the public. Rain date is Sunday, June 24th. Direct any questions to the Lower Merion Conservancy at 610-645-9030 or

Our programs