Crackling from the fire pit. Laughter from the pool. Wind blowing through the trees. What sounds like home to you? Whatever it is…that’s the sound of life in a Siepmann Realty neighborhood. To us, building communities is about much more than developing lots, accessing utilities, paving streets, and building houses. Our team believes that creating a vibrant neighborhood means embracing the natural beauty of the land and ensuring architectural diversity, while planning for how they both change and mature over time. For three generations, our family has followed a philosophy rooted in developing quality communities. Through creative land planning, open space design concepts, architectural foresight, and attention to detail, our goal is to develop a property that grows into a community and one that homeowners are proud to call home.
Jim joined Siepmann Realty after finishing college in 1981. His start was much like his father’s, learning the business from the ground up, seeing each facet of the development process unfold one step at a time. He learned the “art” of land development by spending many hours with his father driving around properties, reviewing all the communities, and comparing them with the competition. Jim now serves as President with oversight of all development, new construction, and property management. His primary focus is on the development phase from site acquisitions to planning and government approvals. “I love working with our customers to share our vision of a community that we have created and to see their dreams fulfilled when they build and move into their new home.”
- Wisconsin Real Estate Broker
- Village of Summit Plan Commission, Waukesha County Park and Land Use Commission
- Board Member – Waukesha County Land Conservancy, First Bank Financial Center and Brewer Company
- Past President – Metropolitan Builders Association (1997)
- Mountain biking, road biking, snow skiing, photography, and yard work
Karen holds multiple roles at Siepmann ranging from sales and house plan approval to landscaping and entryway design. She joined the family business in 1990 after owning her bakery, The Shaker Baker, in Brookfield. Karen always enjoys creating something fresh and new! She also ensures that every home built in a Siepmann neighborhood maintains a high-level of architectural integrity, and also designs and implements landscaping at entryways and throughout our neighborhoods, ultimately creating long-term value for all property owners in our communities. “I enjoy working with people, helping them find the perfect lot for their new home.”
- Bachelor of Science, UW-Madison
- Real Estate Salesperson
- Volunteer – Waukesha County Land Conservancy
- Volunteer – Literacy Council
- Past head of the Fellowship Committee at her church (15 years)
- Cooking, baking, gardening, reading, walking/hiking, yoga, travel, and playing with her grandkids!
John joined his father Ron, brother Jim, and sister Karen in the family business starting in 1993. John grew up walking properties with his dad and brother and envisioning the design of the neighborhoods before they were ever built. He currently serves as Vice President of Operations and Development Manager. John handles all brokerage and entitlement matters, as well as project and property management. Whether it’s fixing a fence in one of the residential communities or facilitating government approvals at one of our commercial properties, John is a driving force behind the day-to-day operations at Siepmann. “I take pleasure in meeting and working with so many people and introducing them to our conservation communities.”
- Wisconsin Real Estate Broker
- Town of Merton Plan Commissioner
- Past President – Metropolitan Builders Association (2008)
- Road and mountain biking, alpine ski instructor/race coach, water skiing, sailing, and hiking
Chris joined his father (Jim), aunt (Karen), and uncle (John) at Siepmann Realty in 2021. After 7 years of financial work in Utah for a fast-growing PE-backed outdoor sporting goods company, Chris is looking forward to integrating what he has learned in the outdoor industry into the family business. Much like his father, he attended the University of Utah, graduating with a BS in business administration, with an emphasis in finance. He grew up working landscape duty for the company and has always admired what the company has accomplished – especially in terms of land conservation. After spending the last 11 years in Utah (with the past 7 years spent in the outdoor industry), nature and recreation space are extremely important to him. He currently serves as Vice President of Operations and will be handling property management, overviewing finance and budgeting, as well as real estate sales and acquisition. “I love to see people outside enjoying the miles of beautiful trails Siepmann Realty ensures are in each development”.
- Wisconsin Real Estate Salesperson
- Mountain biking, road biking, downhill skiing, trail running, hiking, and softball
Heidi came to Siepmann in 2014 and currently serves as Administrative Assistant and Bookkeeper. When it comes to entering invoices, printing checks, reconciling bank statements, and preparing financials Heidi is the backbone of our administrative department. “I love greeting folks as they walk into our office and providing them with friendly customer service so that our family-like environment feels like home.”
- Spending time with family and new granddaughter, golf, travel, and camping