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, General Manager, 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.

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.

Sheila Ireland, Vice President, Workforce Solutions

 Sheila leads the West Philadelphia Skills Initiative for University City District where she's passionate about learning as a vehicle to connect people to their hopes, dreams and purpose through the world of work. In five years, she has taken this program from the conceptual stage to a program that has been recognized nationally and locally for innovation and effectiveness. Sheila conceptualized Green City Works and is responsible for growing it into an operating entity. The Skills Initiative trains the next generation of West Philadelphia landscapers, placing graduates in quality landscape positions at Green City Works and other employers throughout the city.  She has over eighteen years of experience in human resources, training and organizational development, which includes her time as Human Resources Director for Encore Healthcare LLC, where she worked just prior to joining UCD. Previously Sheila also directed training for the 5th largest public utility in the country and for the City of Philadelphia. Sheila graduated from Temple University with a B.B.A. majoring in Human Resources Management, and holds an M.S. from LaSalle University in Human Capital Development.