Cornerstone Connection

Welcome to The Glen at Muskego Lakes—a community where natural beauty and modern comfort come together. Set within more than 40 acres of Wisconsin’s most beautiful landscapes, it’s a place designed for effortless living. Here, ranch-style condominium homes with open layouts and abundant natural light blend seamlessly with amazing amenities, including a clubhouse, pool, and pickleball courts.

Cornerstone Development doesn’t just build houses — they design communities with purpose. In Modern Home Builders, founder John Wahlen explains how Cornerstone focuses on quality craftsmanship, thoughtful amenities, and lifestyle-driven design to truly transform the lives of homeowners.

John Wahlen makes an appearance on the Fix-It show.

As seen on The Morning Blend, discover The Grove in River Hills, a community where exclusive living meets convenience. Just minutes from downtown Milwaukee, these beautifully designed homes offer six unique models to fit your lifestyle. With premium amenities, a prime location, and the craftsmanship of Cornerstone Development, finding your perfect home has never been easier.

On this episode of The Morning Blend, John Wahlen of Cornerstone Development introduces The Grove in River Hills—a new exclusive condominium community offering standalone, ranch-style condominium homes. Residents enjoy the freedom of homeownership without the hassle, with services like lawn care and snow removal included. The community features a clubhouse with an exercise room, party room, hearth room, golf simulator, pool, fire pit gathering area, pickleball court, and a bocce court, providing a luxurious lifestyle in a peaceful setting.

On this episode of The Morning Blend, John Wahlen of Cornerstone Development discusses how our new Pewaukee neighborhood offers the best of both worlds: standalone homes with condominium-style services. Enjoy the freedom of homeownership without the hassle—lawn care, snow removal, and maintenance are all included. Plus, with ranch-style floor plans, a clubhouse, and pickleball courts, it’s a lifestyle designed for relaxation and convenience.