The 8181 Douglas building is essentially a private club with just 14 units built in 1982, smack in the middle of Preston Center. Each unit is either a whole floor or a half floor. The penthouse is two floors covering 18,270 square feet. With so few units, they don’t come on the market often and typically fall into two camps. Either they’re original 1980s lusciousness or they’ve been completely redone. The 8181 Douglas buyer values extreme privacy but desires to be close to a lively restaurant scene in Preston Center (and may even office there). The proximity to the Tollway makes journeys into the city or out northward a cinch. Building amenities include valet parking, porters, fitness center, pool, spa and outdoor barbeque grills.