A group of unit owners in Logan, south of Brisbane, say they have been let down by the Queensland Government after discovering their homes will be just metres from the Pacific Motorway when a major upgrade is complete.

Most of units at the Rochedale South complex were resumed and demolished over the past six months, but nine have been left untouched.

Their owners are furious they were not offered resumptions as well, after seeing how close they will be to the M1.

Units resumed in Wooraka Street at Rochedale South. ( Google Maps )

Property devaluation 'has been huge'

David Lambert has been renting his townhouse to a tenant who now wants to move out because of the construction noise.

He said his pleas with the Department of Transport and Main Roads have been dismissed.

"They intend to put up a big fence … something like the Berlin Wall — that's what they'll be looking at — and there'll be lots of noise, lots of vibration," Mr Lambert said.

"The devaluation of the properties has been huge — you can't give these away now.

"We can't borrow against it, we can't sell it — it's just shattered the dreams and hopes of the owners."

Of the 37 units in the complex along Wooraka Street and Chamberlain Avenue, 28 were resumed.

Mr Lambert said he raised concerns with the previous State Government in 2012 when he heard about the planned works but the expansion was shelved at the time.

He has since been lobbying the department for assistance after the project was given the green light.

"I would have liked to have seen all us be resumed at the time they resumed all the others," he said.

Mr Lambert says his pleas have been dismissed. ( ABC News: Liz Pickering )

A strip of vegetation between the motorway and the complex is also expected to be mostly removed.

Roads Minister Mark Bailey said plans to expand the highway have been underway for years and the townhouses do not need to be removed.

"We of course are using tax-payer funds to do it, it's important we only take the land we require," he said.

"I can totally understand why they would have that position but we will only take the land we require."

'No-one has told us anything at all'

A recent appraisal of the property shows the market value has been diminished due to the "significant works" being carried out.

Owners Julia and Anthony Mayfield also rent out their unit, which they originally purchased in 1983.

Mr Mayfield said he had not received any information from the Department.

"When I arrived here, I didn't realised all these units had been demolished — it was a shock to the system — no-one has told us anything at all," Mr Mayfield said.

Ms Mayfield said the proximity of the expansion was unbelievable.

"When I saw that it was so close to the units, I just couldn't believe it," she said.

"I don't understand why they didn't buy us all out — they bought so many of the other units, why leave the rest?

"It doesn't make any sense to me — you'd think they'd have bought the whole lot."

A department spokeswoman said the remaining units at the Wooraka Street complex were not required and the local community had been engaged in the process.

"This engagement process has involved newsletter updates, public information sessions, flyers and responding directly to residents' concerns," she said.

"Our expert property team remains committed to working with the local community and keeping them up-to-date as this project progresses."

Major construction due to begin in April

The upgrade is expected to cost up to $196 million and is being funded by both the state and federal governments.

It will include:

more southbound lanes on the Pacific Motorway between Eight Mile Plains and Rochedale

more southbound lanes on the Pacific Motorway between Eight Mile Plains and Rochedale the relocation of a bus entry from Eight Mile Plains Bus Station onto the Pacific Motorway

the relocation of a bus entry from Eight Mile Plains Bus Station onto the Pacific Motorway replacement of a four-lane overpass on a realigned Underwood Road

The Department of Transport and Main Roads has been contacted for comment.

According to the department's website "all land required for this project has now been acquired".

Major construction is due to begin in April and continue until 2020.