Ultra dense networks (UDN) are one of the key components of 5G, which can address the coverage and quality of service (QoS) related issues of the user equipments (UE) in dead zones. In this work, a fuzzy based pico evolved node base station (eNB) placement method is proposed to meet the coverage demands, while not disturbing the existing macro eNBs. The simulation results show that the proposed scheme maximizes the coverage, while satisfying budget and interference constraints. © 2019 SERSC.