A 55-year-old male presented with progressive lower urinary tract symptoms and renal colic. The workup revealed a complete left ureteral duplication with a hydronephrotic upper pole moiety inserting into the prostatic urethra. Using a 5-port transperitoneal robotic-assisted laparoscopic technique, an extravesical upper pole ureteroneocystostomy was performed. Clinical follow-up and repeat imaging documented symptomatic and radiographic improvement. Robotic-assisted laparoscopic reconstructive techniques are feasible and efficacious in the management of adult ureteral anomalies.