Incomplete at the end of the war, she was surrendered to the Allies at Harwich on 27 March 1919, and then taken to Chatham Dockyard as a potential subject for experimental work, but was never so-employed.

[4] She was sold to M. Lynch & Sons on 22 July 1920 for £2,000, and towed to Rochester, Kent.

After being stripped of any reusable material, the hulk was dumped in shallow water in the Medway estuary, along with those of UB-144 and UB-145.

UB-150 carried 10 torpedoes and was armed with a 10.5 cm (4.13 in) deck gun.

UB-150 would carry a crew of up to 3 officer and 31 men and had a cruising range of 7,280 nautical miles (13,480 km; 8,380 mi).