Our Communities.

Now Building The Glen at Pellmann Farm in Muskego!
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 Call (414) 323-4551 or
(262) 333-1243 Today!

Our Models

Our Wisconsin condominium developers offer ranch-style condo floor plans varying in designs, construction features, and lifestyle.

Our innovative communities are designed to appeal to retirees, rising young executives and single-again buyers. Visit or call us to learn more about unique, comfortable, hassle-free living!

Schedule a Tour

Our main office is located at:
N63 W23849 Main Street in Sussex

Schedule your model tour today!   Click  “Visit Us”  and call the phone number of the community you would like to see.
Got a question? Click the blue “Contact Us” tab below and CHAT. If you don’t get an immediate answer, please leave your email address and we’ll get right back to you!

Welcome to Cornerstone’s Completed Neighborhoods!!

Great New Lifestyles Now Being Enjoyed Every Day!

Cornerstone Development is helping people build new lifestyles each and every day!  The “proof in the pudding” rests in how quickly our neighborhoods have been selling out.

Take a brief photo tour and see for yourself!

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Get to know The Glen at Cedar Creek

Cornerstone Development of SE Wisconsin proudly invites you to tour our newest community, The Glen at Cedar Creek in historic Cedarburg.

Single-Family homes located in a beautiful country setting.. just minutes from all of the conveniences you desire!

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Featured Model: The Aberdeen

Bedrooms: 2  Baths: 2  Laundry: Main level  Sq. ft.: 1,667

  • All
  • The Glen at Cedar Creek
  • The Glen at Park Circle
  • The Glen at Pellmann Farm
  • The Glen of Greenfield
  • The Villas of Maplewood Terrace
  • The Woodlands at Greenfield
The Villas of Maplewood Terrace
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The Villas of Maplewood Terrace
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What our homeowners say about us.

Our company news

Keep up with the happenings at Cornerstone Development!

  • The Glen at Seven Stones Honored as ‘Best Development’ Sussex, WI – Cornerstone Development of SE Wisconsin LLC is excited and proud to announce that The

  • Apparently, Wisconsin is the place to go for an active, enjoyable life after age 50. At least, that’s what a new livability index from AARP says. Apparently, Wisconsi

  • Cornerstone Development Succeeds Offering Appealing Lifestyle Options One suburban condominium developer continues to enjoy remarkable success with ranch-style condominium

Learn more. Schedule a tour!