Attic Self Storage is a single location facility - not part of a chain. We are extremely proud of our over 45 years of service to Potrero Hill, San Francisco consumers. We know there is a difference, and we've been making that happen for years. Our spacious and unique building is the former home of Hamm's Brewery. Converted to storage in 1976, the facility has over 1500 units on 4 floors with a heavy-duty freight elevator. Our carts, loading dock and private parking lot make access to your Potrero San Francisco self storage unit easy and efficient. Call today to request a quote.