Real estate in King of Prussia is booming — for renters and buyers. Zillow rates the market in the Upper Merion Township community as "very hot," with a median listing price of $350,000. These three homes can be had for less than $400,000.

386 W. Valley Forge Road
Monthly taxes: $330
Tell me all about it: This four-bedroom home boasts a lot of potential. Not only does it have a sizable master suite and an attic waiting to be finished for additional space, it also has an enormous back yard. We also love the location, which is directly across the street from the Upper Merion Community Center with its fitness center and swim club. Bonus: There is a natural gas hookup for your grill out back.

Lot 1B Summit St.
Monthly taxes: $429
Tell me all about it: The nice part about new construction is you can customize it. And you know you're the first person to take a shower there. We love this three-bedroom model, which includes a first-floor master suite. The custom kitchen includes a breakfast nook and the great room boasts a fireplace. Plus, it includes two-car parking.

584 Hansen Road
Monthly taxes: $328
Tell me all about it: This four-bedroom mid-century home has a plum location on a cul de sac in Cinnamon Hill next to Sweetbriar Park. We love the vaulted ceilings and walls of windows in the family room. The deck and yard out back offer plenty of privacy. Bonus: The laundry is also on the first floor.