San Francisco County is the nation’s top market for sellers, according to a recent report from housing data provider RealtyTrac. The report found that on average homes in the city sell for 8% more than their estimated market value, which RealtyTrac calculates by tracking comparable sales and property characteristics. Gregg Lynn, a senior global real estate adviser for Sotheby’s International Realty, said demand for luxury properties is increasing, particularly in areas near the San Francisco Bay. “The place where everybody wants to live is only about 20% of the peninsula,” Lynn said. Limited supply and increased demand have sparked bidding wars in San Francisco’s waterfront communities. “There could be five or six families bidding for it [a home] and that pushes prices up,” Lynn said. San Francisco rose to the top of Knight Frank’s latest Prime Global Cities Index, which tracks luxury real estate in key cities around the world. At 14.3%, San Francisco's annual price growth through the first quarter was the highest in the 35-city index. Lynn said he hasn’t seen any signs of prices cooling off. Instead, demand seems to be outstripping supply as many homeowners are reluctant to sell. "Acquiring property is competitive and difficult," he said. "Once residents purchase property, they traditionally don’t want to go through the process again." Here’s a look at what’s available in San Francisco. These five properties, all listed on Mansion Global, range in price from about $4 million to $49 million. Visit these links for the complete listings. Folsom Street, $49 millionScott Street, about $11.8 millionCarmel Street, about $7.7 millionClarendon Avenue, about $4 millionO’Farrell Street, about $4 million Listings on Mansion Global as of June 4, 2015 Write to Gina Faridniya at gina.faridniya@dowjones.com