Retired major league baseball player Lenny Dykstra has placed his eight-bedroom mansion in the Lake Sherwood area of Thousand Oaks, Calif. on the market for $24,950,000, less than a year after purchasing it from hockey great Wayne Gretzky for a reported $18.5 million.In a Big Time Listings exclusive, we can report on Dykstra's listing of the house at 1072 Newbern Court in Thousand Oaks, which just came on the market on Friday. Dykstra, 45, only purchased the 6.69-acre estate, which also inexplicably has at times also had the address of 2606 Newbern Court, from Gretzky on August 29, 2007, with the deal being recorded on August 31, 2007, aswe reportedlast November.Features at the Newbern Court compound include a main, neo-Georgian-style mansion that was built in 2002 and designed by Richard Landry (listing information calls the mansion 12,713 square feet, while public records tab it at 12,360 square feet), a guesthouse, a carriage house, views of the Sherwood Country Club and Lake Sherwood itself, a pool and a tennis court, according to listing information. Other features in the mansion include seven and a half baths, a paneled study, a billiards room, a screening room, outdoor verandas, and a fitness facility, according to listing information. Check out an onlinelisting sheet for Dykstra's house-- complete with photos, or check out theproperty website.