About our companies and the mission.

As a brokerage of the future and as part of Twenty40 Companies larger mission, we leverage technology for market research and our tools allow us to respond quickly and with efficiency to ensure a smooth process.


We value honesty


We are real estate experts


We are always improving

About Us

Choose a tab below to learn more about Twenty40’s background and divisions.


Our mission is to remain at the forefront of industry standards with a focus on creating and supporting lasting homes and communities. Our goal is to continue to implement development and construction practices and procedures that reduce the impact of a neighborhood or home on the environment, from solar ready homes to the materials used in daily operations. This also allows homeowners to reduce energy costs and help the environment simultaneously.


In 2019, Civil Engineer – Chad Pelley, Real Estate Agent – Stefan Doerrfeld, and Licensed Contractor – Cory Pelley, started Twenty40 Building Concepts, Inc. with the goal to build quality, affordable homes within a unique and diverse community. Surpassing expectations, by 2021, Twenty40 was the largest new construction home builder in Marion, IA. With the addition of Chad Brandel and his background in Commercial Construction and Project Management, Twenty4o added development services and opened a real estate brokerage. Offering services and expertise in the development, construction, and real estate fields unlike any other company in the area, Twenty40’s future is bright and boundless.


The new age of real estate brokerages is already here. While technology has become a bigger part of the real estate transaction, one-on-one relationships with our clients is still front and center. As a brokerage of the future, we leverage technology for market research and our tools allow us to respond quickly and with efficiency to ensure a smooth process.


Twenty40 Building Concepts is proud to be a progressive construction and development company. We integrate green practices and source products from sustainable vendors while limiting environmental impact and utilizing smart home automation technology in our developments, homes, and projects.

Team Members
Satisfied Customers

Meet the Sales Team

Whether you’re buying, selling, or need consultation, contact one of our sales agents to get started.

Stefan Doerrfeld
Stefan DoerrfeldBroker & Owner
Stefan started his illustrious real estate career in 2008, surpassing $500 million in sales, over 1,000 transactions, and as Broker, remains hands-on with the entire real estate team.
Kyle Storey
Kyle StoreySales Agent
After nearly 10 years in the insurance industry, Kyle brought his business degree and sales skills to Real Estate in 2018. Having worked with investors, new construction clients, first-time buyers, land buyers, all types of sellers, and more, Kyle can assist with any of your real estate needs.
Rhyse Pelley
Rhyse PelleySales Agent
Having worked in the service industry for over 9 years, Rhyse knows what it takes to go the extra mile for his clients. With a passion for real estate and a dedication to customer service, Rhyse will make your next transaction stress-free.