Landscape Architects  /  Planners  /  Environmental Consultants


Founded in 1988, Gentile Glas Holloway O’Mahoney & Associates (2GHO) is recognized as one of South Florida’s leading land planning, landscape architecture firms that also provides environmental consulting, and graphic design services.  Our uniquely talented team of professionals is committed to bring the client’s vision from concept to reality, while at the same time being cognoscente of budget, time, environmental, regulatory and site constraints.  The firm provides a proven team approach, working effectively with both public and private sectors primarily throughout south and central Florida, Georgia, Mississippi, North Carolina, Costa Rica and the islands of the Bahamas and Caribbean. 

With the talent, experience, technological knowledge and commitment, our team can provide the highest level of professional services expected by our clients to achieve their desired goals.



  • Due Diligence and Feasibility Studies
  • Conceptual Design, Master Planning and Site Planning
  • DRI (Development of Regional Impact) Design & Processing
  • Land Use & Zoning Consultation, Amendments, Policy and Code Development
  • Project Entitlements
  • Community Urban and Town Planning and Public Space Design
  • Architectural & Community Design Guidelines
  • Landscape Architectural Design including planting, hardscape, water features, and signage
  • LEED Certified Design and Low Impact Development Design
  • Roadway Landscape Design and Streetscape Programming
  • Parks and Recreation Design
  • Landscape Architectural Construction Administration
  • Landscape Refurbishment and Cost Estimating
  • Expert Witness Testimony
  • Regulatory and Policy Consultationand Code Development
  • Public Representation
  • Community and Resident Relations, Workshops and Visioning
  • Environmental Consultation including Vegetative Analysis, Upland and Wetland Mitigation, Management Plans & Monitoring
  • Restoration Planning & Design including Landfillls and Brownfields
  • Graphic Design and Illustration



Jupiter A1A Ribbon Cutting

Read about Partner Emily O'Mahoney's Trip to Australia thanks to the Landscape Architecture Foundation

Harbourside Place Wins ULI's Regional Project of the Year

Partner Emily O'Mahoney Now a Trustee for the Chamber of Commerce of the Palm Beaches

Tiger Woods's New Restaurant in Harbourside Now Open

New Jupiter community park in Abacoa to open in September

George Gentile Elected Chairman Of Palm Beach State College State Foundation's Board Of Directors

Remodeling and Home Design
Jupiter Landscape Architects & Designers