As a social venture focused on providing employment opportunities for local residents, Green City Works is dedicated to serving as an exemplary employer. We are committed to good wages and benefits; full-time, year-round positions; and advancement opportunities.

As a result, we have built a dedicated team with nearly non-existent turnover. With a local workforce, Green City Works is able to provide dependable, timely and flexible service. Employees receive ongoing professional development and training in order to grow their expertise and provide the highest level of service. Given this dynamic team, Green City Works is uniquely positioned to harness University City’s accelerating economic growth for the benefit of the broader community.


Green City Works Leadership:
Green City Works is supported by an in-house landscape architect, and managed by a landscaping professional with over 20 years of experience working in the industry.



Brian English, Director, Green City Works

Brian English joined UCD in 2016 as the General Manager of Green City Works. Brian has worked in the landscaping industry for over 20 years. His experiences range from managing start-up and established design-build landscape firms to serving as Director of Property Management for a land trust. At the land trust, Brian was responsible for enacting environmentally focused initiatives on sites owned by the land trust, in addition to assisting regional land owners with productive and sustainable land management strategies. Brian has long been active in the promotion of native horticulture and urban greening and sees Philadelphia as the ideal place to express these interests. After spending time managing a company serving the New York City region, Brian recently returned home to the Philadelphia area, where he lives with his wife and two children.


Chris O’Keeffe, Production Supervisor, Green City Works

Chris O’Keeffe has worked in the landscaping industry for over 11 years and has a strong passion for urban landscapes and beautification. Chris started landscaping young with Mack Landscape Management, a design build firm specializing in high end residential installation, maintenance and storm water management. Chris worked his way up from crew member to operations manager in his time at his old firm. At Green City Works Chris takes pride in sharing his knowledge with the crew and training them to become seasoned professional landscapers. In his spare time he enjoys camping, fishing and hiking with his girlfriend Erin and Australian Cattle Dog Kodi.

Mark Gay, Supervisor, Green City Works

Mark Gay trained with the first Green City Works cohort in 2014.  He started as one of the first employees in 2015, and was quickly promoted to Supervisor, overseeing other employees and leading critical projects.  Mark lives in West Philadelphia, has always enjoyed landscaping work, and is happy to have a career that helps make the city a better, greener place.  


Nathan F. Hommel, Director, Planning and Design


Nathan joined UCD in 2012, and has served as the Director of Planning and Design since Summer 2015. Nathan uses his urban design expertise and dedicated enthusiasm to further enhance urban quality of life issues throughout University City. He was instrumental in launching Green City Works and serves as a quality and design consultant for all landscaping projects that the venture executes. Before UCD, Nathan worked as a landscape architect/urban designer for two firms in Philadelphia, and since 2010 has headed the urban design and community design studios at Philadelphia University while also teaching as an adjunct professor of landscape architecture. Nathan is a graduate of SUNY College of Environmental Science and Forestry.


Rachel Feigenbutz, Urban Design Associate

Rachel Feigenbutz joined UCD in May 2017 as an Urban Design Associate. Prior to working at UCD, she consulted for a landscape architecture firm where she planned community driven, ecological landscapes for public spaces and institutions and a residential design build firm where she worked on high-end horticultural gardens. Her experience includes ecological restoration/stormwater design, agriculture/permaculture design, master planning, historic site development, site analysis, project management, plant identification, education, and instruction.

Rachel has worked on a variety of unusual and interesting projects: managing a gentleman’s farm; offering sustainability consulting for large scale agricultural sites; design consulting at Central Park’s Tavern on the Green; working on an earthship style greenhouse; and illustrating a book about biodigestors.

She has a 5 year Bachelors of Landscape Architecture degree from Philadelphia University, as well as a Permaculture Design Certificate from the Eastern Pennsylvania Permaculture Guild. In 2013 Rachel completed Isaiah Zagar’s Mosaic design course, where she received a scholarship personally from Zagar. She is very interested in the products that come from plants and enjoys foraging native edibles, has processed black walnuts, tapped maple trees and enjoys weaving baskets from invasive vines.