Halsted Welles Associates sets the gold standard for creating gardens in an urban setting. We provide the full spectrum of services from design through construction to maintenance. We're committed through the entire process, so that the natural form of growing plants completes the architecture of the hardscape and realizes the vision of the garden.


  • Feasibility Studies
  • Roof Load Calculations
  • Schematic Design
  • Design Development
  • Construction Documents
  • Planting Plans & Soil Specifications
  • Exterior Lighting Plans
  • Filings with NYC
    Landmarks and the DOB


  • Planters of wood, metal, & stone
  • Planting areas adapting intensive green roof technology
  • Trellises, fences, & gates
  • Shade structures
  • Storage cabinets
  • Outdoor kitchens
  • Decks and rooftop paving
  • Stone walls & patios
  • Low voltage exterior lighting systems
  • Automatic drip irrigation systems
  • Water features


  • Garden Maintenance Programs
  • Ornamental Pruning
  • Bonsai Techniques
  • Soil Tests & Enhancements
  • Seasonal Plantings
  • Hedge Trimming
  • Integrated Pest Management
  • State Certified Pest Control
  • Sustainable Practices