The Real Estate Institute of Western Australia (REIWA) has dismissed a claim there is not enough land to meet the state's housing demand.

A report by the Urban Development Institute of Australia has found there is a national shortage of land for housing, which is putting pressure on affordability.

REIWA's Stewart Darby says supply in WA has slowed but it is still adequate.

"There's over 500 blocks available in Mandurah, Geraldton's got over 300 blocks and down in Albany there's something like 200-odd blocks," he said.

"So to suggest there's a land shortage I think is a big call."

Mr Darby believes the situation will improve when current construction projects are completed.

"We've actually now seen a very important upswing in building activity so any tight housing situation at the moment will start to resolve itself as we get new supply coming through," he said.