BOSTON, Massachusetts (AP) -- As real estate spaces go, it's quite small. Still, it comes with heat and valet service, sits in a tony Boston neighborhood and costs a mere $160,000.Your car will thank you.

The escalating cost of parking, long a premium in Boston, hit home for many when it was learned that a 180-square-foot parking spot sold last month for $160,000 at the Brimmer Street Garage in the Beacon Hill neighborhood.

As prices for some spaces exceed the cost of a single-family house in other parts of the state, even seasoned real estate agents are muttering, "Whoa."

"I've said that on a number of occasions," said Richard Phipps, owner of Boston Real Estate Agents.

Since January 2003, seven spots have sold at the Brimmer Street Garage for at least $140,000, with one spot selling for a record $167,500 last August.

By comparison, a three-bedroom home in Westfield was listed for $159,900 this week, one of several listed under $160,000 in that western Massachusetts city.