9 Open House's Scheduled - View homes in person this weekend. Southern Idaho properties open to the public this weekend. Stop by and see these homes in person. Agent Testimonial: View All Ken is great. We are very happy with the service Irwin provided & with the sales outcome! Brent and Marcia N.   Canyonside Irwin Realty is a full service Southern Idaho real estate firm marketing residential, business/commercial, farm & ranch properties, land/lots and investment properties. Over the past 30 years, we have grown from two different companies being #1 and #2 in area sales, with a few agents in small offices to become the largest real estate firm in the heart of Southern Idaho. With 5 offices throughout the heart of Southern Idaho, Canyonside Irwin Realty is a respected industry leader with over 70 agents. We are proud to have 5 offices serving you in the Magic Valley and we look forward to assisting you with your real estate needs.  Our web site marketing is unsupassed by any other company with nearly 500 people viewing real estate for sale in Idaho every day.  Choose Canyonside Irwin Realty for all your real estate needs.  Search for Twin Falls Real Estate with no registration.