What is the Lifespan of a Retaining Wall? For a permanent wall stricture the general lifespan is said to be between 50 and 100 years. This does however depend on the conditions of the soil and groundwater of your site. By JT's|2018-11-10T22:02:04+00:00November 10th, 2018|Retainig Wall| Share This Story, Choose Your Platform! FacebookTwitterLinkedInWhatsappPinterestEmail