Keith E. Simpson Associates is involved with several large-scale planning and design projects. The firm has been employed as campus Landscape Architects for preparatory schools in Connecticut, a research laboratory on Long Island, and several hospitals in the New York- CT area. Services include preparation of site analysis and feasibility studies, to the development of schematic designs and master plans through construction documents, and on-site construction review.

  • Master Plan Development
  • Site Analysis and Feasibility Studies
  • Preparation of Construction Documents
  • Historic Landscape Restoration
  • Mixed-use Development
  • Subdivision Planning
  • Waterfront Development
  • Commercial and Industrial Development
  • Corporate and Institutional Development


One of our roles as Landscape Architects is to protect today’s endangered wetlands and water systems in addition to enhancing plant and wildlife communities that are associated with them.  The firm has expertise in designing ponds, stream enhancements and wetland plantings, in addition to extensive experience in preparing environmental reports and applications.

  • Wetlands Mitigation and Restoration
  • Pond and Stream Channel Enhancement
  • Coastal Resource Expertise
  • Pollinator and Native Habitat Development
  • Brownfield Redevelopment
  • Roof Deck/Green Roof Design


Residential design services offered by the firm include projects of diverse scale and scope.  These projects range from master plans for properties of all sizes to design of swimming pools, tennis courts, ponds, terraces and driveways to meadows, lawns and gardens.  Other services provided include permitting, site selection and house location, as well as screening of adjacent properties and steep slope solutions.

  • Pool, Tennis, and Recreation Area Design
  • Driveways, Courtyards, Terraces and Gardens
  • Ponds, Streams, and Wetlands Conditions
  • Steep Slope Solutions
  • Regulatory Review and Permitting


The firm provides numerous services associated with the management of a project from program development through permitting, design phases and implementation.  We strive to ensure a high quality of construction by coordinating the work and performing on-site reviews.

  • Presentations before Regulatory Agencies
  • Project Coordination
  • Construction Phasing
  • Cost Estimating
  • On-site Construction Review