Emergency services are dealing with a blaze on the Elba estate.
Mid and West Wales Fire and Rescue Service received the call at 6.30pm.
Images and videos posted on social media show the roof destroyed by flames.
Elba gowerton on fire.— Jimmy the mole🏴🏴 (@jimmyd14070) June 5, 2020
Oh my god pic.twitter.com/xqrSFrfCUt