Angela Hunter and Jake Annetts have returned to "tin and dust" at their property in Bombay where on Friday their home stood, but say they are thankful for their lives.

Key points: The North Black Range fire was at emergency level Friday night but has been downgraded

The North Black Range fire was at emergency level Friday night but has been downgraded Winds eased overnight but are expected to return to 10-30kph on Saturday

Winds eased overnight but are expected to return to 10-30kph on Saturday At least one home has been destroyed along with hundreds of stock, particularly sheep

A blaze that broke from the NSW Tallaganda National Park on Friday quickly moved east through the isolated areas of Bombay and Little Bombay, jumping the Shoalhaven River and encroaching upon Braidwood.

The North Black Range fire has been upgraded to watch and act, after briefly returning to advice on Saturday morning.

It is still more than 15,000 hectares in size.

Minor damage has been reported by the Rural Fire Service, but much of the fireground has been inaccessible.

Ms Hunter and Mr Annetts returned to their property early Saturday morning to find the fires had swept through it.

The Dog Leg farm was a self-sustaining hobby farm in Bombay, west of Braidwood. ( ABC News: Andrew Kennedy )

"Everything we lived in and everything we owned has gone, all the trees we've been planting over the past four years, and all the work we've been doing to regenerate the land has all gone," Ms Hunter said.

"To see our house, just literally a pile of tin and dust … but at the end of the day, it's just stuff, and we're alive and our animals are OK."

The pair had made a home completely by hand from recycled materials, a "piece of paradise" they could regenerate and share with friends passing through.

"That was our dream really, to make it a place we could share," Ms Hunter said.

"It's been a long, hard journey, but we were so close, it feels like we have to start again now," Mr Annetts said.

But the pair remained stoic that they could rebuild their "dream".

"We've started again several times, in different ways. We got together when we were in our 40s and started again with nothing," Ms Hunter said.

"We literally came here with nothing but a caravan and started from scratch … so yeah, we will do what we have to do."

Fears conditions will worsen

Firefighters are still working to control the North Black Range blaze that late on Friday came within a kilometre of Braidwood.

At one point the fire had burned through more than 19,000 hectares.

The fire was downgraded from emergency late Friday night, but Rural Fire Service spokeswoman Kelwyn White said conditions were expected to deteriorate Saturday afternoon.

"Conditions have been quite benign on the fire grounds this morning, we haven't had the wind gusting that we experienced yesterday, but there is potential for that to pick up later this afternoon," Ms White said.

"People need to remain vigilant across the fireground … the whole fireground is not yet under control."

Ms White said residents in Braidwood, Bombay, Forbes Creek, Hoskinstown, Bendoura, and Butmaroo should monitor the situation closely and have a plan for what to do if conditions worsen.

Rural Fire Service district officer Darren Marks said some damage to properties was expected through areas west of Braidwood.

"You can fairly safely assume that there has been a significant amount of fire that has gone through Little Bombay and Bombay," Mr Marks told ABC Radio Canberra on Friday.

"It has come out of the Tallaganda forest with a vengeance."

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The RFS has called in an air tanker and established containment lines outside Braidwood to prevent the fire encroaching upon the town.

The Kings Highway has been reopened.

Mr Marks said the fire — believed to have started with a lightning strike on Tuesday — was too dangerous to try to bring under control on Friday.