Planning the remodeling of Prince Georges Plaza in Hyattsville, managers of the 31-year-old mall surveyed their customers.

Just what did shoppers think of the place?

Were there any special conveniences that they might enjoy?

Could visiting the plaza be made more . . . satisfying?

The resounding reply from patrons: "Yes! Please! We need to go to the bathroom!"

Except for out-of-the-way restrooms tucked in the corners of a few stores, there is nowhere to go when one needs to go in Prince Georges Plaza.

But that all changes tomorrow. The new public restrooms are set to open at 10 a.m.

The mall's management is awfully proud.

A ribbon-cutting ceremony is planned for tomorrow. Greeters at the plaza's doors will point the way. Sandwich-board signs ("Now when you have to go, you don't have to go far") stand waiting. A half-dozen clowns have been hired. Scores of little gift bars of commemorative soap have been stamped and wrapped.

"It's just our way of saying, 'Our restrooms are open,' " said Dora Clark, the mall's general manager. "It's not a severe, weighty matter. But it's important to our customers. Important to them, and important to us."

The plaza opened in the spring of 1959, not long after the dawn of suburbia, and grew up with the community. It was fully enclosed in 1977, and today includes about 100 stores.

The remodeling, and an expansion, will give the mall a new face and add more than a dozen new retailers.

The survey found that "shoppers rate public restrooms as their No. 1 desire," Clark said.

But the new restrooms are more than mere restrooms. "It's just our way of saying, 'Look at us. We're changing,' " said Clark.

Mall marketing manager Constance Cannon nodded.

"And what makes them more state-of-the-art than anything is that the {baby} changing tables won't be included in just the ladies' room," she pointed out.

"There'll be a changing table in the men's room, too. We really feel that's in keeping with the trends of today's society."

There's one men's room and one ladies' room.

"Four stalls each," Clark pointed out.

"It's also an attitude," she said. "There'll be signs in the restrooms. 'If this room isn't clean, call customer service.' And that's our attitude. We want to make sure you're comfortable here."