Realty One Group Prosper, a full-service real estate brokerage, celebrated one year in business at its Buda office, 305 Railroad St., Ste. A, on Sept. 1. Under owners Karlyn Ellis, Jody Celum and Chad Hardin, the firm has expanded to about 80 agents. Realty One Group has more than 135 offices across the country, according to the company. 512-523-5663