David’s den! 4 BD, 4 BTH Traditional-style home in Los Angeles. ASKING PRICE $1.25 million. It’s been a big year for house swapping among the Friends. Three of the six TV pals, including David Schwimmer, have bought new homes in the last six months. Schwimmer is now selling his Hollywood Hills abode of six years after upgrading last summer to a Hancock Park property more than triple in size. Perched above the Sunset Strip near the West Coast dwellings of Britney Spears and Sandra Bullock, the 3,100-square-foot pad, built in 1941, has a breakfast room, den, two fireplaces, and hardwood floors. The gated property (Arleen Ruby and Lawrence Leviton at Prudential Realty in Beverly Hills have the listing) also includes a patio with a pool and spa. And lest Schwimmer miss any of his high-wattage neighbors from his old ‘hood, he can always have them sleep over in one of the seven guest suites at his new shack!