Landscape architecture and site planning

O’Boyle, Cowell, Blalock, & Associates, Inc. (OCBA) is a woman-owned firm that has provided award winning planning and design services to our clients since 1964. Our dedicated staff of landscape architects provides comprehensive services from project inception through construction and beyond.

OCBA’s nationally recognized collaborative approach is creative, practical and cost effective.

We understand that creating great outdoor places takes teamwork and vision, and we have developed an expansive professional network across the state of Michigan.

OCBA has over 50 years’ experience in translating big ideas into built projects, and we bring together the right project team, tailor made to fit each project, to develop and implement the design.

O’Boyle, Cowell,
Blalock &  Associates, Inc.

350 E. Michigan Avenue
Suite 415
Kalamazoo, Michigan 49007

124 Fulton St. E.
Suite 6B
Grand Rapids, MI 49503

(269) 381-3357



  • Master Planning & Design
  • Community Engagement
  • Grant & Permit Applications
  • Construction Plans & Specifications
  • Agency Reviews & Approvals
  • Construction Administration

site design

Places: Site Design

landscape design

Landscape Design

  • Green Infrastructure Planning
  • Planting & Irrigation Design
  • Native Plantings
  • Therapeutic Garden Design
  • Landscape Master Plans
  • Rain Gardens & Bloswales

specialized services

Specialized Services

  • Strategic Vision & Program Development
  • Participatory Planning & Design Charrettes
  • Public Input Facilitation