Victorian authorities have confirmed 29 houses were destroyed in a bushfire that was sparked by lightning strikes in the Bunyip State Park in eastern Victoria a week ago.

Key points: A spate of bushfires in the state have burned more than 100,000 hectares since last Thursday

A spate of bushfires in the state have burned more than 100,000 hectares since last Thursday Firefighters are still battling the Bunyip blaze and more than a dozen other bushfires across Victoria

Firefighters are still battling the Bunyip blaze and more than a dozen other bushfires across Victoria The Bunyip blaze destroyed 29 houses, 67 outbuildings or sheds and damaged two other houses, while the Yinnar South blaze destroyed two structures

A further two houses were damaged by the blaze but were considered habitable, the state control centre said in a statement.

It said 67 outbuildings or sheds had been destroyed in the Bunyip fire.

A further two properties were destroyed in a separate blaze further east at Yinnar South.

"We are thinking about those families that have lost their homes at this particular time," Emergency Management Commissioner Andrew Crisp said.

Authorities had previously said at least 11 structures had been destroyed — nine in the Bunyip fire, and two in the Yinnar South blaze.

Assessment teams have inspected 447 properties this week.

The Bunyip blaze destroyed 29 houses and damaged two more. ( ABC News, file photo )

Mr Crisp said the spate of bushfires that began last Thursday had burned more than 100,000 hectares.

He said 17 fires were yet to be brought under control.

Mr Crisp said about 2,000 firefighters and 61 aircraft had been deployed to fight the ongoing fires.

The area is known for equestrian training centres and small farms.

Cardinia Shire mayor Graeme Moore said it was an "emotional time" but locals were strong and would rebuild.

"The community don't know which way to turn at the minute, so that's what we're helping them [with] as much as we can with their recovery for the future," Councillor Moore said.

"One godsend is I guess the Tonimbuk Hall has been saved, which is the heart of the community … but it's not really much when you're talking about 29 properties that have been devastated.

"This community here is so resilient, to hold together, to work together, I'm proud of them, I'm proud of this community how well they're coping under the circumstances."

Bunyip fire 'surreal' for residents who had to evacuate

Rex Newton returned to the twisted metal wreckage of his Bunyip home on Monday.

"I only have the clothes on me, and it isn't that nice a shirt," he told the ABC on Tuesday as he held a piece of melted metal from his roof.

Mr Newton said he evacuated his home as the flames reached the other side of the building, moving at an "unbelievable" speed.

"It just 'whoosh', and it was there," he said.

"I went straight through, grabbed the dog, in the car and out."

Kate Hurford from Garfield North left her home last Friday night after she noticed ash falling outside.

"I made the decision to leave quite early just so I could put some things together and head somewhere safe," she said earlier this week.

She found out from neighbours her one-bedroom bungalow had been destroyed.

Kate Hurford said keeping a sense of humour had helped her deal with the loss of her bungalow. ( ABC News: Danielle Bonica )

"It's a bit surreal. Watching the emergency app, I was keeping track of the fire footprint so I knew there was a chance that it was going to happen, so I guess that gave me some time to brace myself," Ms Hurford said.

"At the moment it's just dealing with the now, I have a place to stay and I'm safe — the rest of that stuff, as much as it's home, they're just material possessions."

The Bunyip fire destroyed 67 outbuildings or sheds as well as 29 houses. ( ABC News )

Ms Hurford said keeping a sense of humour was helping her come to terms with her loss.

"I had a laugh with a friend yesterday that it's the easy way to Marie Kondo your house," she said.

"I've also said to my work colleagues that I only grabbed a bagful of clothes, so they're not allowed to give me grief over the outfits that I show up to work in.

"I don't want you to think that I'm not upset with the whole situation, but I need to keep smiling through it, just to get through it."