COII Communities
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    • Home
    • COII Developments
      • Maple Square
    • Home Design Features
    • Native Landscaping
    • Community
    • Contact
COII Communities
  • Home
  • COII Developments
    • Maple Square
  • Home Design Features
  • Native Landscaping
  • Community
  • Contact

Explore COII Conservation

Diagram of a passive house design focused on wellness, sustainability, and cost efficiency.

Check out all of the conservation, cost saving, and fun features in a COII Home!

Row of modern townhouses with solar panels on roofs.

Energy Conservation

  • Reduced thermal bridging through double stud framing with plant derived insulation
  • Solar panel and battery pack options


A water droplet splashing into a calm blue surface.

Water Conservation

  • Cistern for rainwater harvesting for toilet and landscape use
  • Approx. 13,600 gallons of water saved per home each year

Fluffy white clouds scattered across a vibrant blue sky.

Wellness-Inside Air

  • CERV-Systems in each home, provides high quality ventilation
  • Detection technology to keep the best air quality in the home
  • Clearing small unwanted particulates from the inside air

Modern living room with large windows, wooden accents, and red furniture.

Interior Design

  • Low/No VOC products
  • Locally sourced and manufactured priority for products
  • Mindfully selected finishes

Learn about COII's Lead Project Architect

Click here

Meet COII's Interior Designer

interior designer portrait, smiling face

Jennifer Crawford-COII Interior Designer


I am originally from California, and moved to east central Illinois about 16 years ago. My husband and I live on a small farm, raising our two young daughters. We have 2 dogs, 2 cats and chickens. I love to travel and cook, try new foods and recipes. 

I find inspiration in design from nature and my travels to achieve the desired outcome for my clients. I prefer to use local producers/craftsmen for materials and it is fun to create unique pieces. I have ample knowledge in the building material/construction industry which allows me to make recommendations specialized to each project. I have a focus in kitchen and bath design for 13 years. If we can dream it, draw it, we can build it.

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