GOOMBUNGEE residents Kaye and Tom Mullins watched floodwaters rise in Allora nine months ago with a mixture of interest and trepidation.

The pair had bought a block in Allora with the intention to build last September, just three months before the first flood gushed through the township.

When the second lot of water came through in January, they assumed their application to build would be turned down by council but, to their relief, approval came through one week after.

"Just as a precaution, we decided to raise our block so it's not on a slab, it's on stumps," Mrs Mullins said.

"The land where we have cultivation and stockyards went under water, but the water didn't reach the area where we were going to build."

On Saturday, the pair went down to the Allora Community Hall to inspect the flood maps collated by engineering consultancy group SKM.

Mrs Mullins said the maps were "fairly accurate" with the water volume they had witnessed.

SKM surface water engineer David Berry said the series of maps - better known as the Condamine River and Tributaries Flood Study - would be of great use to the Southern Downs Regional Council in the future.

"It's a great tool because people will be able to see what areas are prone to flooding and what aren't," he said.

"That will then affect developmental decisions and council will be able to decide whether or not to allow buildings to go ahead in flood-prone areas.

"It will become a development regulation tool."

Mr Berry said the technology used to create the maps was fairly new, and this was the first time such maps had been done for the Southern Downs.

"We've had a few people come through and the general feedback we've had is that the maps do replicate the floods in December and January," he said.

The study was commissioned in August last year and is due to be finished in about a month's time.

SKM will visit Warwick on Saturday, September 24, from 9am-11am at the library, and Killarney from 1pm-3pm.